Celanese International Corporation

United States of America

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New (last 4 weeks) 7
2025 March 7
2025 February 4
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IPC Class
C07C 29/149 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof with hydrogen or hydrogen-containing gases 149
C07C 51/12 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols 138
C07C 31/08 - Ethanol 108
C07C 51/44 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation by distillation 83
C07C 53/08 - Acetic acid 72
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NICE Class
01 - Chemical and biological materials for industrial, scientific and agricultural use 105
17 - Rubber and plastic; packing and insulating materials 66
16 - Paper, cardboard and goods made from these materials 10
42 - Scientific, technological and industrial services, research and design 10
41 - Education, entertainment, sporting and cultural services 9
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Status
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Registered / In Force 806
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1.

HCT

      
Serial Number 99107356
Status Pending
Filing Date 2025-03-27
Owner Celanese International Corporation ()
NICE Classes  ? 01 - Chemical and biological materials for industrial, scientific and agricultural use

Goods & Services

Unprocessed synthetic resins; unprocessed artificial resins; unprocessed plastics; unprocessed polymers; unprocessed thermoplastic compounds, thermoplastic elastomer resins and thermoplastic concentrates for use in manufacturing in a wide variety of industries; all of the above for use with molded medical devices and/or controlled release medicinal and pharmaceutical packaging applications

2.

WATER AND EFFLORESCENCE RESISTANT COMPOSITION CONTAINING A POLYMER DISPERSION

      
Application Number US2024046769
Publication Number 2025/059575
Status In Force
Filing Date 2024-09-13
Publication Date 2025-03-20
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Müller, Harmin
  • Aberle, Thomas
  • Seib, Matthias
  • Krieger, Stephan

Abstract

Binders for coating compositions may comprise an aqueous polymer dispersion and from 0.05 to 5% of an alkali salt of a fatty acid, based on the solids content of the aqueous polymer dispersion. The aqueous polymer dispersion may be produced by emulsion polymerization. In some aspects, the aqueous polymer dispersion contains the alkali salt of a fatty acid. In other aspects, the alkali salt of a fatty acid is a post addition, added after the polymer dispersion is formed. The binder may contain at least 0.5 pphm of an anionic emulsifier, at least 2 pphm of a nonionic emulsifier, or both. The binder may be incorporated into a coating composition, a render, a façade paint, a roof tile paint, or a primer, for example.

IPC Classes  ?

  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
  • C09D 131/04 - Homopolymers or copolymers of vinyl acetate

3.

Tube Mandrel and Methods for Forming a Tube

      
Application Number 18883330
Status Pending
Filing Date 2024-09-12
First Publication Date 2025-03-20
Owner Celanese International Corporation (USA)
Inventor Smith, Jeffrey

Abstract

A mandrel for the manufacture of a tube is provided. The mandrel includes one or more discs spaced apart from each other; one or more guide wires coupled to one or more of the discs; and one or more control wires coupled to one or more of the discs. Articulation of one or more of the control wires induces a shape change in the tube. Methods for manufacturing a tube are also provided.

IPC Classes  ?

  • B29C 67/00 - Shaping techniques not covered by groups , or
  • B21D 9/01 - Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
  • B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
  • B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
  • B29L 23/00 - Tubular articles

4.

TUBE MANDREL AND METHODS FOR FORMING A TUBE

      
Application Number US2024046399
Publication Number 2025/059310
Status In Force
Filing Date 2024-09-12
Publication Date 2025-03-20
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor Smith, Jeffrey

Abstract

A mandrel for the manufacture of a tube is provided. The mandrel includes one or more discs spaced apart from each other; one or more guide wires coupled to one or more of the discs; and one or more control wires coupled to one or more of the discs. Articulation of one or more of the control wires induces a shape change in the tube. Methods for manufacturing a tube are also provided.

IPC Classes  ?

  • B21D 9/03 - Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls
  • B21D 11/14 - Twisting

5.

Low Emission Polyoxymethylene Composition

      
Application Number 18812357
Status Pending
Filing Date 2024-08-22
First Publication Date 2025-03-13
Owner Celanese International Corporation (USA)
Inventor
  • Kurz, Klaus
  • Ohm, Christian

Abstract

A polyoxymethylene polymer composition is disclosed containing a formaldehyde stabilizer package. The formaldehyde stabilizer package contains, in one embodiment, a substituted hydantoin that has been found to dramatically reduce formaldehyde emissions either alone or in combination with another emission control agent. Lower formaldehyde emissions were also found to occur when the polymer composition did not contain a calcium stearate.

IPC Classes  ?

6.

INCORPORATION OF ALKENE HYDROGENATION IN VINYL ACETATE PRODUCTION SYSTEMS AND METHODS

      
Application Number US2024045388
Publication Number 2025/054329
Status In Force
Filing Date 2024-09-05
Publication Date 2025-03-13
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Salado, Manuel C.
  • Schmidt, Urs M.
  • Alexander, Steve R.
  • Mueller, Sean
  • Somerville, Stacey
  • Chen, Laiyuan

Abstract

Methods for producing vinyl acetate at higher production rates may be achieved by increasing the flammability limit of the mixture in the vinyl acetate reactor. For example, methane and/or higher carbon alkanes (e.g., alkanes with two or more carbons, also referred to herein as C2+ alkanes) in a diluent in the vinyl acetate reactor may increase the flammability limit. For example, a method of producing vinyl acetate may include the following steps: reacting via a hydrogenation reaction one or more alkenes and hydrogen in the presence of a hydrogenation catalyst to produce one or more alkanes; and reacting via an acetoxylation reaction acetic acid, ethylene, and oxygen in the presence of an acetoxylation catalyst and an alkane diluent to produce vinyl acetate and water, wherein the alkane diluent comprises the one or more alkanes from the hydrogenation reaction.

IPC Classes  ?

  • C07C 67/05 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation
  • C07C 9/06 - Ethane
  • C07C 69/15 - Vinyl acetate
  • C07C 5/03 - Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of non-aromatic carbon-to-carbon double bonds

7.

LOW EMISSION POLYOXYMETHYLENE COMPOSITION

      
Application Number US2024045251
Publication Number 2025/054230
Status In Force
Filing Date 2024-09-05
Publication Date 2025-03-13
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Kurz, Klaus
  • Ohm, Christian

Abstract

A polyoxymethylene polymer composition is disclosed containing a formaldehyde stabilizer package. The formaldehyde stabilizer package contains, in one embodiment, a substituted hydantoin that has been found to dramatically reduce formaldehyde emissions either alone or in combination with another emission control agent. Lower formaldehyde emissions were also found to occur when the polymer composition did not contain a calcium stearate.

IPC Classes  ?

8.

Rotationally Molded Articles For Food Contact Applications

      
Application Number 18813218
Status Pending
Filing Date 2024-08-23
First Publication Date 2025-02-27
Owner Celanese International Corporation (USA)
Inventor
  • Grinsteinner, Darin
  • Larkin, Adam

Abstract

A polymer composition containing a polyoxymethylene polymer in the form of particles for rotational molding applications is disclosed. The polyoxymethylene polymer is selected to have physical characteristics and is combined with one or more impact modifiers in order to produce hollow vessels and other articles having improved physical properties, such as impact strength resistance. The polymer composition of the present disclosure is particularly formulated so as to be food contact grade compliant.

IPC Classes  ?

  • C08L 71/02 - Polyalkylene oxides
  • B65D 1/22 - Boxes or like containers with side walls of substantial depth for enclosing contents
  • B65D 65/38 - Packaging materials of special type or form
  • B65D 85/50 - Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
  • C08K 5/098 - Metal salts of carboxylic acids
  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 75/04 - Polyurethanes

9.

ALDEHYDE REMOVAL PROCESS FOR METHANOL CARBONYLATION

      
Application Number 18943621
Status Pending
Filing Date 2024-11-11
First Publication Date 2025-02-27
Owner Celanese International Corporation (USA)
Inventor Hanik, Peter

Abstract

Disclosed is a method for removing acetaldehyde and other permanganate reducing compounds (PRCs) from a process stream in the methanol carbonylation process for making acetic acid. The method includes the steps of forming an azeotrope to reduce the boiling point of the acetaldehyde and other PRCs to facilitate separation of the acetaldehyde and other PRCs from the process. In one embodiment the azeotrope comprises butane and acetaldehyde.

IPC Classes  ?

  • C07C 51/46 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
  • B01D 3/14 - Fractional distillation
  • B01D 3/36 - Azeotropic distillation

10.

ROTATIONALLY MOLDED ARTICLES FOR FOOD CONTACT APPLICATIONS

      
Application Number US2024043563
Publication Number 2025/043150
Status In Force
Filing Date 2024-08-23
Publication Date 2025-02-27
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Grinsteinner, Darin
  • Larkin, Adam

Abstract

A polymer composition containing a polyoxymethylene polymer in the form of particles for rotational molding applications is disclosed. The polyoxymethylene polymer is selected to have physical characteristics and is combined with one or more impact modifiers in order to produce hollow vessels and other articles having improved physical properties, such as impact strength resistance. The polymer composition of the present disclosure is particularly formulated so as to be food contact grade compliant.

IPC Classes  ?

11.

POROUS MEMBRANES AND POLYMER BLEND MADE THEREWITH

      
Application Number CN2023113993
Publication Number 2025/039154
Status In Force
Filing Date 2023-08-21
Publication Date 2025-02-27
Owner
  • CELANESE INTERNATIONAL CORPORATION (USA)
  • SUN, Yingying (China)
  • TAO, Fangfang (China)
Inventor
  • Sun, Yingying
  • Tao, Fangfang
  • Ohm, Christian

Abstract

Polymer compositions are disclosed containing at least one high molecular weight polyethylene polymer for producing gel extruded articles. In one embodiment, porous membranes are produced that have an excellent balance of properties including high porosity and high strength characteristics. In one aspect, very thin membranes can be formed having high strength characteristics.

IPC Classes  ?

  • H01M 50/417 - Polyolefins
  • C08L 23/06 - Polyethene
  • C08J 5/18 - Manufacture of films or sheets
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
  • B01D 69/12 - Composite membranesUltra-thin membranes
  • B01D 71/2 -

12.

Polyester Composition and Elastomer Coated Article Made Therewith

      
Application Number 18907979
Status Pending
Filing Date 2024-10-07
First Publication Date 2025-01-23
Owner Celanese International Corporation (USA)
Inventor
  • Zia, Qamer
  • Markgraf, Kirsten
  • Zierer, Dirk
  • Nickolay, Patrick

Abstract

A polyester polymer composition is disclosed containing reinforcing fibers and having improved adhesion to elastomeric materials while also being formulated for medical applications and/or food service applications. The polyester polymer composition can contain a blend of different polyester polymers and can be free of hindered phenolic antioxidants. The polyester polymer composition can be used in overmolding applications in which the composition is initially molded into a polymer component and then overmolded with an elastomeric material. The elastomeric material can contain a copolyester elastomer and can serve as a sealing member.

IPC Classes  ?

13.

Membrane having a Reduced Shutdown Temperature and Polymer Composition for Making Same

      
Application Number 18890989
Status Pending
Filing Date 2024-09-20
First Publication Date 2025-01-09
Owner Celanese International Corporation (USA)
Inventor
  • Ohm, Christian
  • Markgraf, Kirsten

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more shutdown reducing additives. The shutdown reducing additives decrease the shutdown temperature of polymer articles made from the polymer composition. In one embodiment, the polymer composition is used to form a porous membrane for use of a battery separator.

IPC Classes  ?

  • H01M 50/417 - Polyolefins
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
  • B29K 23/00 - Use of polyalkenes as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • C08L 23/06 - Polyethene
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • H01M 50/406 - MouldingEmbossingCutting
  • H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material

14.

Polyoxymethylene Composition in Food Handling Applications

      
Application Number 18816178
Status Pending
Filing Date 2024-08-27
First Publication Date 2024-12-19
Owner Celanese International Corporation (USA)
Inventor
  • Zia, Qamer
  • Toennes, Kai-Uwe
  • Markgraf, Kirsten

Abstract

The present disclosure is directed to a polyacetal, or polyoxymethylene (POM), base composition which contains an additive package containing additives suitable for food processing applications. Of particular advantage, POM produced according to the present disclosure may demonstrate low formaldehyde emissions, extractables, or both, when measured by standard methods without containing any formaldehyde scavenger packages.

IPC Classes  ?

15.

POROUS MEMBRANE AND POLYMER COMPOSITIONS FOR MAKING SAME

      
Application Number 18652850
Status Pending
Filing Date 2024-05-02
First Publication Date 2024-12-05
Owner Celanese International Corporation (USA)
Inventor
  • Palyam, Nagarjuna
  • Park, Soyeon
  • Hair, Dirk
  • Ditter, David

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains one or more high density polyethylene polymers combined with one or more olefinic copolymers. In order to form gel extruded articles, the polymer composition is combined with a plasticizer. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices. The presence of the olefinic copolymer can increase the adhesive characteristics of membranes made from the composition when placed in contact with an anode and/or a cathode. When producing porous membranes, the olefin copolymer can also decrease the shutdown temperature and increase wettability properties.

IPC Classes  ?

  • C08L 23/06 - Polyethene
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • H01M 50/417 - Polyolefins

16.

POROUS MEMBRANE AND POLYMER COMPOSITIONS FOR MAKING SAME

      
Application Number US2024027369
Publication Number 2024/249013
Status In Force
Filing Date 2024-05-02
Publication Date 2024-12-05
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Palyam, Nagarjuna
  • Park, Soyeon
  • Hair, Dirk
  • Ditter, David

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains one or more high density polyethylene polymers combined with one or more olefinic copolymers. In order to form gel extruded articles, the polymer composition is combined with a plasticizer. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices. The presence of the olefinic copolymer can increase the adhesive characteristics of membranes made from the composition when placed in contact with an anode and/or a cathode. When producing porous membranes, the olefin copolymer can also decrease the shutdown temperature and increase wettability properties.

17.

ARTICLE LAMINATED WITH THERMOFORMED FILM

      
Application Number US2024027439
Publication Number 2024/249015
Status In Force
Filing Date 2024-05-02
Publication Date 2024-12-05
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor Guest, Tom

Abstract

The present disclosure is directed to laminated articles, such as articles for food and beverages, that are biodegradable and/or paper recyclable. The articles include a substrate comprising a film layer. The film layer is formed from a film made from biodegradable and/or paper recyclable polymer materials. The film layer is resistant and/or impermeable to liquids The article is capable of being frozen and/or heated using, for instance, a microwave oven without delaminating.

IPC Classes  ?

  • B32B 1/00 - Layered products having a non-planar shape
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
  • B32B 27/00 - Layered products essentially comprising synthetic resin
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B32B 7/00 - Layered products characterised by the relation between layers Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties Layered products characterised by the interconnection of layers
  • B32B 7/04 - Interconnection of layers
  • B65D 5/42 - Details of containers or of foldable or erectable container blanks
  • B65D 5/56 - Linings or internal coatings
  • B65D 5/563 -

18.

ION SEPARATOR AND COMPOSITON THEREFOR

      
Application Number CN2023097217
Publication Number 2024/243815
Status In Force
Filing Date 2023-05-30
Publication Date 2024-12-05
Owner
  • CELANESE INTERNATIONAL CORPORATION (USA)
  • SUN, Yingying (China)
  • TAO, Fangfang (China)
Inventor
  • Ditter, David
  • Ohm, Christian
  • Sun, Yingying
  • Walkenhorst, Rainer
  • Tao, Fangfang

Abstract

An ion separator for electronic devices, such as batteries, is disclosed. The separator is formed from at least one polyethylene polymer. The polyethylene polymer is modified in a way that causes polymer chain interactions in an amount sufficient to increase the meltdown temperature of the membrane. Cross-linking or other chain interactions can occur using radiation or a chemical chain interactive agent, such as an acrylic acid. In one embodiment, the membrane is exposed to radiation and also is chemically cross-linked.

IPC Classes  ?

  • C08L 23/06 - Polyethene
  • C08J 3/28 - Treatment by wave energy or particle radiation
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/16 - Layered products essentially comprising synthetic resin specially treated, e.g. irradiated

19.

MEMBRANE WITH INCREASED HYDROPHILICITY

      
Application Number CN2023097259
Publication Number 2024/243824
Status In Force
Filing Date 2023-05-30
Publication Date 2024-12-05
Owner
  • CELANESE INTERNATIONAL CORPORATION (USA)
  • TAO, Fangfang (China)
  • SUN, Yingying (China)
Inventor
  • Ditter, David
  • Ohm, Christian
  • Tao, Fangfang
  • Walkenhorst, Rainer
  • Sun, Yingying

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains a polyethylene polymer grafted with a surface tension reducing agent optionally combined with unmodified polyethylene particles. In order to form gel extruded articles, the polymer composition is combined with a plasticizer. The polymer articles have dramatically increased wettability properties. The polymer composition is used to form a porous membrane for use as a separator in electronic devices.

IPC Classes  ?

  • C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
  • C08J 5/18 - Manufacture of films or sheets

20.

Article Laminated With Thermoformed Film

      
Application Number 18652965
Status Pending
Filing Date 2024-05-02
First Publication Date 2024-11-28
Owner Celanese International Corporation (USA)
Inventor Guest, Tom

Abstract

The present disclosure is directed to laminated articles, such as articles for food and beverages, that are biodegradable and/or paper recyclable. The articles include a substrate comprising a film layer. The film layer is formed from a film made from biodegradable and/or paper recyclable polymer materials. The film layer is resistant and/or impermeable to liquids The article is capable of being frozen and/or heated using, for instance, a microwave oven without delaminating.

IPC Classes  ?

  • B29C 51/16 - Lining or labelling
  • B29C 51/10 - Forming by pressure difference, e.g. vacuum
  • B29C 51/26 - Component parts, details or accessoriesAuxiliary operations
  • B29C 51/42 - Heating or cooling
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B32B 1/00 - Layered products having a non-planar shape
  • B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
  • B32B 23/06 - Layered products essentially comprising cellulosic plastic substances comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance of paper or cardboard
  • B32B 23/20 - Layered products essentially comprising cellulosic plastic substances comprising esters

21.

Biodegradable Polymer Composition Containing High Levels of Strength Adjuvant Particles

      
Application Number 18672619
Status Pending
Filing Date 2024-05-23
First Publication Date 2024-11-28
Owner Celanese International Corporation (USA)
Inventor
  • Deng, Guodong
  • Li, Rongfu
  • Caterino, Jonathan
  • Mcgrady, Christopher
  • Combs, Michael

Abstract

A polymer composition is disclosed formed from a cellulose ester polymer, a plasticizer, and at least one strength adjuvant. The strength adjuvant can comprise filler particles. The filler particles are added to the polymer composition in relatively great amounts, such as in amounts greater than 30% by weight.

IPC Classes  ?

22.

AQUEOUS COPOLYMER DISPERSIONS AND THEIR USE IN COATING COMPOSITIONS

      
Application Number 18778771
Status Pending
Filing Date 2024-07-19
First Publication Date 2024-11-07
Owner Celanese International Corporation (USA)
Inventor
  • Wenzel, Kerstin
  • Raman, Narayan
  • Tsang, Tsz Ming
  • Martin, James

Abstract

An aqueous copolymer dispersion is obtained by a multi-stage emulsion polymerization process comprising polymerizing in a reaction zone in a first polymerization stage a first monomer composition comprising at least 88 wt % of a viny I ester of a C1 to C18 carboxylic acid and up to 12 wt % ethylene to produce a first stage polymer having Tg>20° C.; and polymerizing in the reaction zone, in a second polymerization stage and in the presence of the first stage polymer, a second monomer composition comprising a vinyl ester of a C1 to C18 carboxylic acid and a C2 to C8 alkyl ester of (meth)acrylic acid to produce a second stage polymer having Tg≤20° C. Each of the polymerization stages is conducted in the presence of a stabilizing system comprising at least 0.1 wt % of a protective colloid and at least 0.05 wt % of an ionic surfactant.

IPC Classes  ?

  • C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
  • C08F 2/00 - Processes of polymerisation
  • C08F 2/20 - Suspension polymerisation with the aid of macromolecular dispersing agents
  • C08F 2/26 - Emulsion polymerisation with the aid of emulsifying agents anionic
  • C08F 2/30 - Emulsion polymerisation with the aid of emulsifying agents non-ionic
  • C08F 210/02 - Ethene
  • C08F 218/08 - Vinyl acetate
  • C09D 5/02 - Emulsion paints
  • C09D 7/65 - Additives macromolecular

23.

CHEMILLE

      
Application Number 235875900
Status Pending
Filing Date 2024-10-29
Owner Celanese International Corporation (USA)
NICE Classes  ? 42 - Scientific, technological and industrial services, research and design

Goods & Services

(1) Providing temporary use of non-downloadable software using artificial intelligence for the purpose of acting as an online virtual assistant to reply to questions from visitors to the company website.

24.

CHEMILLE

      
Application Number 235876100
Status Pending
Filing Date 2024-10-29
Owner Celanese International Corporation (USA)
NICE Classes  ? 42 - Scientific, technological and industrial services, research and design

Goods & Services

(1) Providing temporary use of non-downloadable software using artificial intelligence for the purpose of acting as an online virtual assistant to reply to questions from visitors to the company website.

25.

Chemille

      
Application Number 019097909
Status Registered
Filing Date 2024-10-29
Registration Date 2025-02-14
Owner Celanese International Corporation (USA)
NICE Classes  ? 42 - Scientific, technological and industrial services, research and design

Goods & Services

Providing temporary use of non-downloadable software using artificial intelligence for the purpose of acting as an online virtual assistant to reply to questions from visitors to the company website.

26.

Chemille

      
Application Number 019097910
Status Registered
Filing Date 2024-10-29
Registration Date 2025-02-15
Owner Celanese International Corporation (USA)
NICE Classes  ? 42 - Scientific, technological and industrial services, research and design

Goods & Services

Providing temporary use of non-downloadable software using artificial intelligence for the purpose of acting as an online virtual assistant to reply to questions from visitors to the company website.

27.

CHEMILLE

      
Serial Number 98820448
Status Pending
Filing Date 2024-10-25
Owner Celanese International Corporation ()
NICE Classes  ? 42 - Scientific, technological and industrial services, research and design

Goods & Services

Providing temporary use of non-downloadable software using artificial intelligence for the purpose of acting as an online virtual assistant to reply to questions from visitors to the company website

28.

CHEMILLE

      
Serial Number 98820449
Status Pending
Filing Date 2024-10-25
Owner Celanese International Corporation ()
NICE Classes  ? 42 - Scientific, technological and industrial services, research and design

Goods & Services

Providing temporary use of non-downloadable software using artificial intelligence for the purpose of acting as an online virtual assistant to reply to questions from visitors to the company website

29.

Thermoplastic Vulcanizates Having Lower Carbon Footprint

      
Application Number 18641511
Status Pending
Filing Date 2024-04-22
First Publication Date 2024-10-24
Owner Celanese International Corporation (USA)
Inventor Bhadane, Prashant

Abstract

A method of forming a thermoplastic vulcanizate and a thermoplastic vulcanizate are disclosed. The method comprises dynamically vulcanizing a formulation comprising a thermoplastic resin, an elastomer, an oil comprising a re-refined oil, and a curing agent to provide the thermoplastic vulcanizate comprising the thermoplastic resin and an at least partially cured elastomer. The thermoplastic vulcanizate comprises a thermoplastic resin in an amount of 5 wt. % or more based on the weight of the thermoplastic vulcanizate, an at least partially cured elastomer in an amount of 5 wt. % or more based on the weight of the thermoplastic vulcanizate, and an oil comprising a re-refined oil.

IPC Classes  ?

  • C08L 91/00 - Compositions of oils, fats or waxesCompositions of derivatives thereof

30.

THERMOPLASTIC VULCANIZATES HAVING LOWER CARBON FOOTPRINT

      
Application Number US2024025629
Publication Number 2024/220963
Status In Force
Filing Date 2024-04-22
Publication Date 2024-10-24
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor Bhadane, Prashant

Abstract

A method of forming a thermoplastic vulcanizate and a thermoplastic vulcanizate are disclosed. The method comprises dynamically vulcanizing a formulation comprising a thermoplastic resin, an elastomer, an oil comprising a re-refined oil, and a curing agent to provide the thermoplastic vulcanizate comprising the thermoplastic resin and an at least partially cured elastomer. The thermoplastic vulcanizate comprises a thermoplastic resin in an amount of 5 wt.% or more based on the weight of the thermoplastic vulcanizate, an at least partially cured elastomer in an amount of 5 wt.% or more based on the weight of the thermoplastic vulcanizate, and an oil comprising a re-refined oil.

IPC Classes  ?

  • C08L 23/10 - Homopolymers or copolymers of propene
  • C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
  • C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
  • C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers

31.

Gel Extruded Articles Made From High Density Polyethylene With Narrow Molecular Weight Distribution

      
Application Number 18485484
Status Pending
Filing Date 2023-10-12
First Publication Date 2024-10-17
Owner Celanese International Corporation (USA)
Inventor
  • Ohm, Christian
  • Yadav, Arvind

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene polymer has a narrow molecular weight distribution. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.

IPC Classes  ?

  • C08L 23/06 - Polyethene
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
  • B29C 48/08 - Flat, e.g. panels flexible, e.g. films
  • B29K 23/00 - Use of polyalkenes as moulding material
  • C08J 5/18 - Manufacture of films or sheets

32.

FOOD AND MEDICAL GRADE POLYMER COMPOSITION AND ARTICLES MADE THEREFROM

      
Application Number US2024024041
Publication Number 2024/215865
Status In Force
Filing Date 2024-04-11
Publication Date 2024-10-17
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Zia, Qamer
  • Markgraf, Kirsten
  • Zierer, Dirk
  • Nickolay, Patrick
  • Feist, Peter

Abstract

A fiber reinforced polyester polymer composition is disclosed that is specially formulated for food contact applications and/or medical applications. The polyester polymer composition contains glass fibers that are either bisphenol-A free or contain free bisphenol-A in only trace/residual amounts. The composition can be formulated without using conventional stabilizers, antioxidants and/or lubricants. The polymer composition displays excellent mechanical properties.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
  • C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers

33.

Food and Medical Grade Polymer Composition and Articles Made Therefrom

      
Application Number 18632730
Status Pending
Filing Date 2024-04-11
First Publication Date 2024-10-17
Owner Celanese International Corporation (USA)
Inventor
  • Zia, Qamer
  • Markgraf, Kirsten
  • Zierer, Dirk
  • Nickolay, Patrick
  • Feist, Peter

Abstract

A fiber reinforced polyester polymer composition is disclosed that is specially formulated for food contact applications and/or medical applications. The polyester polymer composition contains glass fibers that are either bisphenol-A free or contain free bisphenol-A in only trace/residual amounts. The composition can be formulated without using conventional stabilizers, antioxidants and/or lubricants. The polymer composition displays excellent mechanical properties.

IPC Classes  ?

34.

Laser Transparent Composition and Molded Articles Made Therefrom

      
Application Number 18683387
Status Pending
Filing Date 2021-08-13
First Publication Date 2024-10-17
Owner Celanese International Corporation (USA)
Inventor
  • Chen, Hongyu
  • Tao, Fangfang
  • Gabrielse, Wouter
  • Zierer, Dirk

Abstract

Polyester polymer compositions are described containing one or more nucleating agents and optionally reinforcing fibers. The polyester polymer, for instance, can be poly butylene terephthalate. The polymer composition is particularly formulated in order to be substantially transparent at specific wavelengths of light. Consequently, the polyester polymer composition is well suited for use in laser transmission welding in which a laser beam passes through the polymer composition and forms a weld on an adjoining surface. In one aspect, a black pigment masterbatch can be added to the composition for further improving the transparency properties.

IPC Classes  ?

35.

Polymer Composition With Flame and Electrical Tracking Resistance

      
Application Number 18627529
Status Pending
Filing Date 2024-04-05
First Publication Date 2024-10-10
Owner Celanese International Corporation (USA)
Inventor
  • Zia, Qamer
  • Markgraf, Kirsten
  • Zierer, Dirk
  • Nickolay, Patrick

Abstract

Thermoplastic polymer compositions are disclosed that demonstrate a flame resistance rating of V-0 at a thickness of 0.8 mm and a Comparative Tracking Index of 600 V. The polymer compositions can contain a glass-reinforced polyester polymer, namely a polybutylene terephthalate polymer. A flame retardant composition is combined with the polymer composition in addition to one or more insulating adjuvants.

IPC Classes  ?

36.

POLYMER COMPOSITION WITH FLAME AND ELECTRICAL TRACKING RESISTANCE

      
Application Number US2024023224
Publication Number 2024/211672
Status In Force
Filing Date 2024-04-05
Publication Date 2024-10-10
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Zia, Qamer
  • Markgraf, Kirsten
  • Zierer, Dirk
  • Nickolay, Patrick

Abstract

Thermoplastic polymer compositions are disclosed that demonstrate a flame resistance rating of V-0 at a thickness of 0.8 mm and a Comparative Tracking Index of 600 V. The polymer compositions can contain a glass-reinforced polyester polymer, namely a polybutylene terephthalate polymer. A flame retardant composition is combined with the polymer composition in addition to one or more insulating adjuvants.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 67/06 - Unsaturated polyesters
  • C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
  • C08L 101/00 - Compositions of unspecified macromolecular compounds

37.

Thermoplastic Vulcanizate Gasket for Use in an Electrolyzer

      
Application Number 18399296
Status Pending
Filing Date 2023-12-28
First Publication Date 2024-09-05
Owner Celanese International Corporation (USA)
Inventor
  • Rerat, Vincent
  • Diegritz, Wolfgang
  • Schrader, Scott D.

Abstract

An electrolyzer comprising an electrolyzer cell is disclosed. The electrolyzer cell comprises a first spacer frame, a second spacer frame, and a first gasket having a first surface contacting the first spacer frame and a second and opposing surface contacting the second spacer frame. The first gasket comprises a thermoplastic vulcanizate comprising a thermoplastic resin and an at least partially cured elastomer. The thermoplastic vulcanizate exhibits a Shore A hardness (ISO 868-85) of from 35 to 100.

IPC Classes  ?

  • C25B 9/63 - Holders for electrodesPositioning of the electrodes

38.

Porous Polymer Product For Removing Contaminants From A Fluid Stream

      
Application Number 18431505
Status Pending
Filing Date 2024-02-02
First Publication Date 2024-08-15
Owner Celanese International Corporation (USA)
Inventor Chiong, Hendrich

Abstract

A porous polymer product is disclosed that is particularly well suited to filtering fluid streams for removing contaminants. The contaminant, for instance, can be a metal contained in the fluid stream in trace amounts, such as rhodium. The porous polymer product can be made from one or more polybenzimidazole polymers. In one aspect, the one or more polybenzimidazole polymers can be sintered together into a shape suitable for a particular application.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • C02F 1/00 - Treatment of water, waste water, or sewage
  • C02F 1/28 - Treatment of water, waste water, or sewage by sorption
  • C02F 101/20 - Heavy metals or heavy metal compounds

39.

Multi-Purpose Polyamide Polymer Composition and Housings For Electric Vehicles Made Therewith

      
Application Number 18431349
Status Pending
Filing Date 2024-02-02
First Publication Date 2024-08-15
Owner Celanese International Corporation (USA)
Inventor
  • Schmidt, Juergen
  • Pasetti, Guglielmo
  • Beckenbauer, Tobias

Abstract

A polymer composition is disclosed that contains glass fibers and has an excellent balance of properties. The polymer composition displays a comparative tracking index of greater than about 400 volts and a dielectric strength of greater than about 4 kV/mm. In addition, the polymer composition results in excellent surface properties even when molding parts having a long length. The polymer composition can contain at least one stabilizer in combination with a calcium phosphate, such as a calcium hydroxyphosphate. In one aspect, the calcium phosphate is present in the polymer composition in the form of bone char.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients

40.

MULTI-PURPOSE POLYAMIDE POLYMER COMPOSITION AND HOUSINGS FOR ELECTRIC VEHICLES MADE THEREWITH

      
Application Number US2024014182
Publication Number 2024/163855
Status In Force
Filing Date 2024-02-02
Publication Date 2024-08-08
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Schmidt, Juergen
  • Pasetti, Guglielmo
  • Beckenbauer, Tobias

Abstract

A polymer composition is disclosed that contains glass fibers and has an excellent balance of properties. The polymer composition displays a comparative tracking index of greater than about 400 volts and a dielectric strength of greater than about 4 kV/mm. In addition, the polymer composition results in excellent surface properties even when molding parts having a long length. The polymer composition can contain at least one stabilizer in combination with a calcium phosphate, such as a calcium hydroxyphosphate. In one aspect, the calcium phosphate is present in the polymer composition in the form of bone char.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • B60K 1/00 - Arrangement or mounting of electrical propulsion units
  • C08K 3/28 - Nitrogen-containing compounds
  • C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
  • C08K 5/3435 - Piperidines
  • C08K 5/52 - Phosphorus bound to oxygen bound to oxygen only
  • C08K 7/04 - Fibres or whiskers inorganic
  • C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
  • H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
  • H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details

41.

Injection Molded Medical Devices Made From A High Molecular Weight Polyethylene

      
Application Number 18624492
Status Pending
Filing Date 2024-04-02
First Publication Date 2024-08-08
Owner Celanese International Corporation (USA)
Inventor
  • Schmid, Christina
  • Walkenhorst, Rainer

Abstract

A high molecular weight polyethylene polymer is formulated so that the polymer is capable of being injection molded. The polyethylene polymer has a Viscosity Number of greater than about 400 ml/g and has a melt flow rate of greater than about 0.9 g/10 min. The polyethylene polymer is of high purity and is particularly well suited for producing medical products.

IPC Classes  ?

  • C08F 10/02 - Ethene
  • A61B 17/122 - Clamps or clips, e.g. for the umbilical cord
  • A61B 90/98 - Identification means for patients or instruments, e.g. tags using electromagnetic means, e.g. transponders
  • A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereonDental implantsImplanting tools
  • A61F 5/00 - Orthopaedic methods or devices for non-surgical treatment of bones or jointsNursing devices
  • A61F 6/14 - Contraceptive devicesPessariesApplicators therefor for use by females intra-uterine type
  • A61J 15/00 - Feeding-tubes for therapeutic purposes
  • A61K 47/32 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers
  • A61K 49/12 - Macromolecular compounds
  • A61K 49/22 - Echographic preparationsUltrasound imaging preparations
  • A61L 27/16 - Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • A61L 29/04 - Macromolecular materials
  • A61L 31/04 - Macromolecular materials
  • A61M 25/10 - Balloon catheters
  • A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers
  • B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
  • B29K 23/00 - Use of polyalkenes as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29L 31/00 - Other particular articles

42.

POLYMER ARTICLES FOR A COOLANT FLUID CIRCUIT IN ELECTRIC VEHICLES

      
Application Number US2024010620
Publication Number 2024/151497
Status In Force
Filing Date 2024-01-08
Publication Date 2024-07-18
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Steinbach, Sabine
  • Markgraf, Kirsten

Abstract

Molded polymer components are described that are configured to be used in a coolant fluid circulation system. The molded polymer components, for instance, can at least partially define a coolant fluid pathway and are well suited for use in cooling batteries and other electrical components in electric vehicles. The molded polymer components can be made from a polyoxymethylene polymer composition containing reinforcing fibers.

IPC Classes  ?

43.

Polymer Articles For A Coolant Fluid Circuit in Electric Vehicles

      
Application Number 18406604
Status Pending
Filing Date 2024-01-08
First Publication Date 2024-07-11
Owner Celanese International Corporation (USA)
Inventor
  • Steinbach, Sabine
  • Markgraf, Kirsten

Abstract

Molded polymer components are described that are configured to be used in a coolant fluid circulation system. The molded polymer components, for instance, can at least partially define a coolant fluid pathway and are well suited for use in cooling batteries and other electrical components in electric vehicles. The molded polymer components can be made from a polyoxymethylene polymer composition containing reinforcing fibers.

IPC Classes  ?

  • C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
  • C08K 5/24 - Derivatives of hydrazine
  • C08K 5/315 - Compounds containing carbon-to-nitrogen triple bonds
  • C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds

44.

CROSSLINKABLE ETHYLENE POLYMER-BASED THERMOPLASTIC VULCANIZATE AND MOLDED ARTICLE MADE FROM SAME

      
Application Number CN2023070987
Publication Number 2024/145915
Status In Force
Filing Date 2023-01-06
Publication Date 2024-07-11
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Kawachi, Shinya
  • Wang, Wanli
  • Cheng, Jianya

Abstract

A molded article comprising a crosslinked thermoplastic vulcanizate comprising a crosslinked ethylene polymer and an at least partially cured elastomer is disclosed. Methods of making such a molded article are also disclosed. The present disclosure is also directed to a crosslinkable thermoplastic vulcanizate comprising a crosslinkable ethylene polymer and an at least partially cured elastomer.

IPC Classes  ?

  • C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
  • C08L 23/08 - Copolymers of ethene
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules

45.

THERMOPLASTIC VULCANIZATE BASED MOLDED PART FOR USE IN VIRTUAL REALITY SYSTEM

      
Application Number CN2022142890
Publication Number 2024/138433
Status In Force
Filing Date 2022-12-28
Publication Date 2024-07-04
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Wang, Yiqin
  • Wang, Wanli
  • Zhou, Guan Wei
  • Gong, Zhichao

Abstract

A molded part for use in a head-mounted display system or handheld controller is disclosed. The molded part is configured to contact a user's head or hand and contains a thermoplastic vulcanizate comprising a thermoplastic resin and an at least partially cured elastomer. The thermoplastic vulcanizate exhibits a Shore A hardness (ISO 868-85) of from 20 to 95.

IPC Classes  ?

  • G02B 27/01 - Head-up displays
  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G02B 30/00 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
  • A63F 13/26 - Output arrangements for video game devices having at least one additional display device, e.g. on the game controller or outside a game booth

46.

THERMOPLASTIC VULCANIZATE GASKET FOR USE IN AN ELECTROLYZER

      
Application Number US2023085989
Publication Number 2024/145331
Status In Force
Filing Date 2023-12-27
Publication Date 2024-07-04
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Rerat, Vincent
  • Diegritz, Wolfgang
  • Schrader, Scott D.

Abstract

An electrolyzer comprising an electrolyzer cell is disclosed. The electrolyzer cell comprises a first spacer frame, a second spacer frame, and a first gasket having a first surface contacting the first spacer frame and a second and opposing surface contacting the second spacer frame. The first gasket comprises a thermoplastic vulcanizate comprising a thermoplastic resin and an at least partially cured elastomer. The thermoplastic vulcanizate exhibits a Shore A hardness (ISO 868-85) of from 35 to 100.

IPC Classes  ?

  • C25B 9/17 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 1/02 - Hydrogen or oxygen
  • C08J 5/22 - Films, membranes or diaphragms

47.

MULTI-LAYER FILM WITH HEAT SEAL PROPERTIES

      
Application Number US2023084729
Publication Number 2024/137565
Status In Force
Filing Date 2023-12-19
Publication Date 2024-06-27
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor Marshall, Jo

Abstract

A multi-layer film is described and disclosed. The multi-layer film can be made from renewable resources. The multi-layer film can also be biodegradable and compostable. In one aspect, the film includes a cellulose ester polymer layer laminated to a bio-based polyester film layer. The bio-based polyester film layer provides heat seal properties, while the cellulose ester polymer layer provides tear resistance and better modulus properties.

IPC Classes  ?

  • B29C 48/08 - Flat, e.g. panels flexible, e.g. films
  • B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
  • C08L 1/12 - Cellulose acetate
  • B32B 23/08 - Layered products essentially comprising cellulosic plastic substances comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
  • B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
  • C08J 5/18 - Manufacture of films or sheets

48.

Multi-Layer Film With Heat Seal Properties

      
Application Number 18545088
Status Pending
Filing Date 2023-12-19
First Publication Date 2024-06-20
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor Marshall, Jo

Abstract

A multi-layer film is described and disclosed. The multi-layer film can be made from renewable resources. The multi-layer film can also be biodegradable and compostable. In one aspect, the film includes a cellulose ester polymer layer laminated to a bio-based polyester film layer. The bio-based polyester film layer provides heat seal properties, while the cellulose ester polymer layer provides tear resistance and better modulus properties.

IPC Classes  ?

  • B32B 23/08 - Layered products essentially comprising cellulosic plastic substances comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
  • B32B 23/14 - Layered products essentially comprising cellulosic plastic substances characterised by containing special compounding ingredients
  • B32B 23/20 - Layered products essentially comprising cellulosic plastic substances comprising esters

49.

Polymer Composition and Membranes Made Therefrom With Improved Mechanical Strength

      
Application Number 18589899
Status Pending
Filing Date 2024-02-28
First Publication Date 2024-06-20
Owner Celanese International Corporation (USA)
Inventor
  • Ohm, Christian
  • Tao, Fangfang
  • Li, Man Cheng

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more strength enhancing additives. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.

IPC Classes  ?

  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
  • C08F 110/02 - Ethene
  • C08J 3/11 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers
  • C08J 5/18 - Manufacture of films or sheets
  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • C08K 3/22 - OxidesHydroxides of metals
  • C08K 5/098 - Metal salts of carboxylic acids

50.

Compositions Containing Recycled Polymer Materials

      
Application Number 18511081
Status Pending
Filing Date 2023-11-16
First Publication Date 2024-06-06
Owner Celanese International Corporation (USA)
Inventor
  • Kurz, Klaus
  • Markgraf, Kirsten

Abstract

The present disclosure is directed to a process for recycling polyoxymethylene polymers and to polymer compositions containing the recycled polyoxymethylene polymers. The recycled polyoxymethylene polymers are combined with one or more virgin polyoxymethylene polymers to produce polymer compositions displaying excellent mechanical properties in combination with a high level of stability.

IPC Classes  ?

  • C08L 59/02 - Polyacetals containing polyoxymethylene sequences only

51.

Fiber Reinforced Thermoplastic Polymer Composition Containing Flame Retardant Package

      
Application Number 18494139
Status Pending
Filing Date 2023-10-25
First Publication Date 2024-05-23
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Eastep, David W.
  • Johnson, Aaron H.

Abstract

A long fiber-reinforced polymer composition is disclosed having excellent flame retardant properties. The flame retardant composition can include a flame retardant system comprised of a metal phosphinate in combination with elevated levels of a synergist, such as a polyphosphate. The composition can display excellent flame resistant properties at extremely small thicknesses.

IPC Classes  ?

52.

COMPOSITIONS CONTAINING RECYCLED POLYMER MATERIALS

      
Application Number US2023080047
Publication Number 2024/107977
Status In Force
Filing Date 2023-11-16
Publication Date 2024-05-23
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Kurz, Klaus
  • Markgraf, Kirsten

Abstract

The present disclosure is directed to a process for recycling polyoxymethylene polymers and to polymer compositions containing the recycled polyoxymethylene polymers. The recycled polyoxymethylene polymers are combined with one or more virgin polyoxymethylene polymers to produce polymer compositions displaying excellent mechanical properties in combination with a high level of stability.

IPC Classes  ?

  • C08L 59/02 - Polyacetals containing polyoxymethylene sequences only
  • B29B 9/00 - Making granules
  • C08L 59/04 - Copolyoxymethylenes
  • G01F 1/00 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
  • B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics

53.

Functionalized Porous Composites

      
Application Number 18500538
Status Pending
Filing Date 2023-11-02
First Publication Date 2024-05-23
Owner Celanese International Corporation (USA)
Inventor
  • Chiong, Hendrich A.
  • Zhao, Xinyu

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with thermoplastic polymer particles and sintered into a shape. The polymer particles act as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

  • C08J 9/24 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
  • C08J 9/26 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out

54.

Electrolysis Film

      
Application Number 18500579
Status Pending
Filing Date 2023-11-02
First Publication Date 2024-05-23
Owner Celanese International Corporation (USA)
Inventor
  • Ohm, Christian
  • Ditter, David
  • Czyborra, Ludger
  • Gensous, Audrey

Abstract

A hydrophilic porous polymer film is disclosed that is particularly well-suited for use in an electrolysis cell producing hydrogen. The porous polymer film contains one or more high-density polyethylene polymers in combination with one or more hydrophilic additives. The porous film can be formed through a gel extrusion process or through sintering. Extremely thin films can be produced that have desired permeability characteristics, hydrophilicity characteristics, and mechanical characteristics necessary for use in the cell.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • C25B 13/08 - DiaphragmsSpacing elements characterised by the material based on organic materials

55.

FUNCTIONALIZED POROUS COMPOSITES CONTAINING CHEMICAL SCAVENGERS

      
Application Number US2023036683
Publication Number 2024/097343
Status In Force
Filing Date 2023-11-02
Publication Date 2024-05-10
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Chiong, Hendrich A.
  • Shaver, Ronald
  • Black, Victoria
  • Scott, Joseph Brian

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with high density polyethylene particles and sintered into a shape. The polyethylene resin acts as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01D 69/14 - Dynamic membranes
  • B01D 71/26 - Polyalkenes
  • B01J 20/18 - Synthetic zeolitic molecular sieves
  • B01J 20/283 - Porous sorbents based on silica

56.

PROCESS AND DEVICE FOR REMOVING CONTAMINANTS FROM A FLUID STREAM

      
Application Number US2023036689
Publication Number 2024/097348
Status In Force
Filing Date 2023-11-02
Publication Date 2024-05-10
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Chiong, Hendrich A.
  • Shaver, Ronald

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with high density polyethylene particles and sintered into a shape. The polyethylene resin acts as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

  • B01D 15/36 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
  • B01D 15/42 - Selective adsorption, e.g. chromatography characterised by the development mode, e.g. by displacement or by elution
  • B01D 27/14 - Cartridge filters of the throw-away type having more than one filtering element
  • B01J 23/06 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of zinc, cadmium or mercury
  • B01J 23/42 - Platinum
  • B01J 23/46 - Ruthenium, rhodium, osmium or iridium
  • B01J 23/56 - Platinum group metals
  • B01J 23/60 - Platinum group metals with zinc, cadmium or mercury
  • B01J 23/72 - Copper

57.

FUNCTIONALIZED POROUS COMPOSITES

      
Application Number US2023036680
Publication Number 2024/097342
Status In Force
Filing Date 2023-11-02
Publication Date 2024-05-10
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Chiong, Hendrich A.
  • Shaver, Ronald
  • Black, Victoria
  • Scott, Joseph Brian

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with high density polyethylene particles and sintered into a shape. The polyethylene resin acts as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01D 69/14 - Dynamic membranes
  • B01D 71/26 - Polyalkenes
  • B01D 71/02 - Inorganic material
  • B01J 20/18 - Synthetic zeolitic molecular sieves
  • B01J 20/283 - Porous sorbents based on silica
  • C08L 23/06 - Polyethene

58.

PROCESS FOR PRODUCING FUNCTIONALIZED POROUS COMPOSITES

      
Application Number US2023036687
Publication Number 2024/097346
Status In Force
Filing Date 2023-11-02
Publication Date 2024-05-10
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Chiong, Hendrich A.
  • Scott, Joseph Brian
  • Black, Victoria

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with high density polyethylene particles and sintered into a shape. The polyethylene resin acts as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
  • B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
  • B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material

59.

FUNCTIONALIZED POROUS COMPOSITES

      
Application Number US2023036713
Publication Number 2024/097368
Status In Force
Filing Date 2023-11-02
Publication Date 2024-05-10
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Chiong, Hendrich A.
  • Zhao, Xinyu

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with thermoplastic polymer particles and sintered into a shape. The polymer particles act as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • C02F 1/28 - Treatment of water, waste water, or sewage by sorption

60.

ELECTROLYSIS FILM

      
Application Number US2023036716
Publication Number 2024/097370
Status In Force
Filing Date 2023-11-02
Publication Date 2024-05-10
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Ohm, Christian
  • Ditter, David
  • Czyborra, Ludger
  • Gensous, Audrey

Abstract

A hydrophilic porous polymer film is disclosed that is particularly well-suited for use in an electrolysis cell producing hydrogen. The porous polymer film contains one or more high-density polyethylene polymers in combination with one or more hydrophilic additives. The porous film can be formed through a gel extrusion process or through sintering. Extremely thin films can be produced that have desired permeability characteristics, hydrophilicity characteristics, and mechanical characteristics necessary for use in the cell.

IPC Classes  ?

  • H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
  • H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
  • H01M 10/05 - Accumulators with non-aqueous electrolyte

61.

FUNCTIONALIZED POROUS COMPOSITES CONTAINING CHEMICAL SCAVENGERS

      
Application Number 18500437
Status Pending
Filing Date 2023-11-02
First Publication Date 2024-05-09
Owner Celanese International Corporation (USA)
Inventor
  • Chiong, Hendrich A.
  • Shaver, Ronald
  • Black, Victoria
  • Scott, Joseph Brian

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with high density polyethylene particles and sintered into a shape. The polyethylene resin acts as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

  • C08J 9/24 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof

62.

Process for Producing Functionalized Porous Composites

      
Application Number 18500459
Status Pending
Filing Date 2023-11-02
First Publication Date 2024-05-09
Owner Celanese International Corporation (USA)
Inventor
  • Chiong, Hendrich
  • Scott, Joseph Brian
  • Black, Victoria

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with high density polyethylene particles and sintered into a shape. The polyethylene resin acts as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

  • C08J 9/24 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
  • C08J 9/26 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • C08J 9/36 - After-treatment

63.

ADHESIVES FOR FILM LAMINATION AND PRODUCTS MADE THEREFROM

      
Application Number 18549070
Status Pending
Filing Date 2022-03-21
First Publication Date 2024-05-09
Owner Celanese International Corporation (USA)
Inventor Junk, Matthias

Abstract

Adhesives comprising an aqueous polymer dispersion, at least one cross-linker, and optional additives, are provided for film lamination. The adhesives comprise a polymer dispersion comprising at least one salt, at least one ethylenically unsaturated monomer with at least one keto or aldehyde group, and at least one compound with at least two functional groups that are capable to react with the keto or aldehyde groups. The adhesives advantageously provide a strong connection between a transparent plastic film or foil and a substrate such as paper or cardboard while being safer and cheaper.

IPC Classes  ?

  • C09J 175/04 - Polyurethanes
  • B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 27/16 - Layered products essentially comprising synthetic resin specially treated, e.g. irradiated
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
  • C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
  • C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
  • C08K 3/26 - CarbonatesBicarbonates
  • C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds
  • C08K 3/32 - Phosphorus-containing compounds
  • C08K 5/098 - Metal salts of carboxylic acids
  • C09J 11/04 - Non-macromolecular additives inorganic
  • C09J 11/06 - Non-macromolecular additives organic

64.

FUNCTIONALIZED POROUS COMPOSITES

      
Application Number 18500405
Status Pending
Filing Date 2023-11-02
First Publication Date 2024-05-09
Owner Celanese International Corporation (USA)
Inventor
  • Chiong, Hendrich A.
  • Shaver, Ronald
  • Black, Victoria
  • Scott, Joseph Brian

Abstract

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with high density polyethylene particles and sintered into a shape. The polyethylene resin acts as a binder trapping or encasing the one or more chemical scavengers in the porous structure.

IPC Classes  ?

65.

FIBER REINFORCED THERMOPLASTIC POLYMER COMPOSITION CONTAINING FLAME RETARDANT PACKAGE

      
Application Number US2023077711
Publication Number 2024/091994
Status In Force
Filing Date 2023-10-25
Publication Date 2024-05-02
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Eastep, David W.
  • Johnson, Aaron H.

Abstract

A long fiber-reinforced polymer composition is disclosed having excellent flame retardant properties. The flame retardant composition can include a flame retardant system comprised of a metal phosphinate in combination with elevated levels of a synergist, such as a polyphosphate. The composition can display excellent flame resistant properties at extremely small thicknesses.

IPC Classes  ?

66.

Low Emission Polyoxymethylene Composition With Color Stability

      
Application Number 18479237
Status Pending
Filing Date 2023-10-02
First Publication Date 2024-04-18
Owner Celanese International Corporation (USA)
Inventor
  • Kurz, Klaus
  • Markgraf, Kirsten

Abstract

A polyoxymethylene polymer composition is disclosed containing a formaldehyde stabilizer package. The formaldehyde stabilizer package contains, in one embodiment, a substituted hydantoin that has been found to dramatically reduce formaldehyde emissions either alone or in combination with another emission control agent.

IPC Classes  ?

67.

LOW EMISSION POLYOXYMETHYLENE COMPOSITION WITH COLOR STABILITY

      
Application Number US2023034261
Publication Number 2024/076521
Status In Force
Filing Date 2023-10-02
Publication Date 2024-04-11
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Kurz, Klaus
  • Markgraf, Kirsten

Abstract

A polyoxymethylene polymer composition is disclosed containing a formaldehyde stabilizer package. The formaldehyde stabilizer package contains, in one embodiment, a substituted hydantoin that has been found to dramatically reduce formaldehyde emissions either alone or in combination with another emission control agent.

IPC Classes  ?

68.

Laser Weldable Polyester Composition

      
Application Number 18262418
Status Pending
Filing Date 2021-01-21
First Publication Date 2024-03-28
Owner Celanese International Corporation (USA)
Inventor Li, Mingyue

Abstract

Polyester polymer compositions are described containing a blend of different polyester polymers. The different polyester polymers are combined with one or more laser additives for producing polymer articles that have excellent laser weldable characteristics. The polymer composition can also contain reinforcing fibers and a lubricant. In one aspect, the laser additive is a carbonaceous material alone or in combination with a quinoline.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

69.

Thermoplastic Vulcanizate Compositions including Cyclic Olefin Copolymers

      
Application Number 18262581
Status Pending
Filing Date 2021-10-26
First Publication Date 2024-03-21
Owner Celanese International Corporation (USA)
Inventor
  • Anantha Narayana Iyer, Krishnan
  • Li, Shushuang
  • Mujtaba, Anas
  • Li, Liang
  • Rerat, Vincent F.
  • Sheng, Yujie

Abstract

Described herein are thermoplastic vulcanizate compositions that include a thermoplastic matrix comprising a cyclic olefin copolymer and an oil and particles dispersed in the thermoplastic matrix and comprising an at least partially cross-linked rubber. The thermoplastic vulcanizate composition has a tan δ profile comprising a peak occurring between about −20° C. and about 90° C. and having a peak value between about 0.1 and about 2.0.

IPC Classes  ?

  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
  • B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

70.

Process for reducing gate blush and mold design for same

      
Application Number 18497565
Grant Number 12103209
Status In Force
Filing Date 2023-10-30
First Publication Date 2024-03-07
Grant Date 2024-10-01
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Miller, Kent R
  • Kowalski, Michael P.
  • Mulholland, Bruce M.

Abstract

A system and process for injection molding polymer articles is described. The system and process are designed to reduce gate blush. In one embodiment, an injection molding device injects a molten polymer composition into a mold cavity adjacent to an interior curved surface on the mold. The flow of the polymer material is parallel to a line that is tangent to the curved surface.

IPC Classes  ?

  • B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
  • B29C 45/03 - Injection moulding apparatus
  • B29C 45/27 - Sprue channels
  • B29K 59/00 - Use of polyacetals as moulding material
  • B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29K 505/02 - Aluminium

71.

Gel Extruded Articles With Molecular Weight Retention

      
Application Number 18358523
Status Pending
Filing Date 2023-07-25
First Publication Date 2024-02-08
Owner Celanese International Corporation (USA)
Inventor
  • Ohm, Christian
  • Ditter, David

Abstract

A polymer composition is disclosed that is particularly formulated for producing gel extruded articles containing a high density polyethylene polymer. In one embodiment, the polymer composition is used to produce a porous membrane or film well suited for use as an ion separator in an electronic device, such as a battery. The polymer composition contains a molecular weight retention package that preserves the molecular weight of the polyethylene polymer during extrusion.

IPC Classes  ?

72.

CATALYST FOR OLEFIN ACETOXYLATION

      
Application Number US2023029226
Publication Number 2024/030439
Status In Force
Filing Date 2023-08-01
Publication Date 2024-02-08
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Chen, Laiyuan
  • Alexander, Steve R.
  • Somerville, Stacey
  • Mueller, Sean

Abstract

Disclosed herein is a catalyst and a process for the acetoxylation of olefins in a gaseous reaction stream containing an olefin, acetic acid, and an oxygen-containing gas using the catalyst. The catalyst may comprise a support material and a catalytic layer disposed on an external surface of the support material. The catalytic layer may comprise palladium and gold. The catalyst may comprise from 7 to 10 g/L palladium and from 3 to 8 g/L gold.

IPC Classes  ?

  • B01J 23/52 - Gold
  • B01J 23/58 - Platinum group metals with alkali- or alkaline earth metals or beryllium
  • B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
  • B01J 35/02 - Solids
  • B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
  • B01J 37/02 - Impregnation, coating or precipitation
  • B01J 37/08 - Heat treatment

73.

ZONE CATALYST LOADING AND PROCESSES FOR THE ACETOXYLATION OF OLEFINS USING THE SAME

      
Application Number US2023029227
Publication Number 2024/030440
Status In Force
Filing Date 2023-08-01
Publication Date 2024-02-08
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Alexander, Steve R.
  • Chen, Laiyuan
  • Somerville, Stacey
  • Mueller, Sean

Abstract

Disclosed herein is a process for the acetoxylation of olefins in a gaseous reaction stream containing an olefin, acetic acid, and an oxygen-containing gas. The process comprises passing a reaction gas over at least two fixed catalyst zones, arranged in series. The catalyst zones are located in one or more reaction tubes arranged in parallel. The at least two fixed catalyst zones comprise an inlet catalyst zone comprising an inlet catalyst and an outlet catalyst zone comprising an outlet catalyst and certain conditions may be met for the inlet and outlet catalyst.

IPC Classes  ?

  • C07C 67/055 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation in the presence of platinum group metals or their compounds
  • C07C 69/15 - Vinyl acetate
  • C07C 69/145 - Acetic acid esters of monohydroxylic compounds of unsaturated alcohols

74.

Extrusion Molded Thermoplastic Vulcanizate Gaskets and Methods of Making Such Gaskets

      
Application Number 18256939
Status Pending
Filing Date 2021-09-23
First Publication Date 2024-02-01
Owner Celanese International Corporation (USA)
Inventor
  • Bhadane, Prashant A.
  • Joshi, Milind B.
  • Smith, Jeffrey M.
  • Potempa, Brian S.
  • Potempa, Michael M.

Abstract

An extrusion molded gasket and a method of making such a gasket comprising one or more annular sections configured to engage a door rim of an appliance tub, one or more annular sections configured to engage the appliance tub, and one or more sealing sections disposed therebetween, wherein the gasket comprises at least one thermoplastic vulcanizate comprising at least 15 wt %, by weight of the thermoplastic vulcanizate (TPV), of a cross-linkable ethylene-based elastomer and within a range from 5 to 30 wt %, by weight of the TPV, of at least one thermoplastic, the TPV having a Shore Hardness within a range from 35 A to 100 A (or 50 D), and wherein the TPV is extrusion molded into the gasket

IPC Classes  ?

  • F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing

75.

GEL EXTRUDED ARTICLES WITH MOLECULAR WEIGHT RETENTION

      
Application Number US2023028584
Publication Number 2024/025884
Status In Force
Filing Date 2023-07-25
Publication Date 2024-02-01
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Ohm, Christian
  • Ditter, David

Abstract

A polymer composition is disclosed that is particularly formulated for producing gel extruded articles containing a high density polyethylene polymer. In one embodiment, the polymer composition is used to produce a porous membrane or film well suited for use as an ion separator in an electronic device, such as a battery. The polymer composition contains a molecular weight retention package that preserves the molecular weight of the polyethylene polymer during extrusion.

IPC Classes  ?

  • C08J 3/075 - Macromolecular gels
  • C08J 3/02 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
  • C08L 23/04 - Homopolymers or copolymers of ethene
  • C08K 5/00 - Use of organic ingredients

76.

Bio-Based Polymer Composition Containing Odor Masking Agent

      
Application Number 18356557
Status Pending
Filing Date 2023-07-21
First Publication Date 2024-01-25
Owner Celanese International Corporation (USA)
Inventor
  • Combs, Michael
  • Li, Rongfu
  • Hughes, Ronald
  • Huang, Chongwen
  • Zhang, Xiaowei
  • Mcgrady, Christopher

Abstract

A polymer composition is disclosed formed from at least one bio-based polymer and at least one odor masking agent. The odor masking agent is designed to control odors by masking the odors during melt processing of the composition without significantly interfering with the optical and/or mechanical characteristics of the composition.

IPC Classes  ?

  • C08L 1/12 - Cellulose acetate
  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • C08K 5/132 - Phenols containing keto groups
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

77.

Composition Containing Cellulose Ester Polymer With Enhanced Melt Strength Agent

      
Application Number 18356569
Status Pending
Filing Date 2023-07-21
First Publication Date 2024-01-25
Owner Celanese International Corporation (USA)
Inventor
  • Li, Rongfu
  • Combs, Michael
  • Hughes, Ronald
  • Blankenship, Susan

Abstract

A polymer composition comprising a cellulose ester polymer combined with at least one salt additive. The salt additive can be combined with the cellulose ester polymer in order to decrease the melt flow rate of the polymer and improve melt processing of the polymer for forming molded articles.

IPC Classes  ?

78.

BIO-BASED POLYMER COMPOSITION CONTAINING ODOR MASKING AGENT

      
Application Number US2023028348
Publication Number 2024/020193
Status In Force
Filing Date 2023-07-21
Publication Date 2024-01-25
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Combs, Michael
  • Li, Rongfu
  • Hughes, Ronald
  • Huang, Chongwen
  • Zhang, Xiaowei
  • Mcgrady, Christopher

Abstract

A polymer composition is disclosed formed from at least one bio-based polymer and at least one odor masking agent. The odor masking agent is designed to control odors by masking the odors during melt processing of the composition without significantly interfering with the optical and/or mechanical characteristics of the composition.

IPC Classes  ?

79.

COMPOSITION CONTAINING CELLULOSE ESTER POLYMER WITH ENHANCED MELT STRENGTH AGENT

      
Application Number US2023028351
Publication Number 2024/020195
Status In Force
Filing Date 2023-07-21
Publication Date 2024-01-25
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Li, Rongfu
  • Combs, Michael
  • Hughes, Ronald
  • Blankenship, Susan

Abstract

A polymer composition comprising a cellulose ester polymer combined with at least one salt additive. The salt additive can be combined with the cellulose ester polymer in order to decrease the melt flow rate of the polymer and improve melt processing of the polymer for forming molded articles.

IPC Classes  ?

  • C08L 1/12 - Cellulose acetate
  • A47G 21/00 - Table-ware
  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
  • C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
  • C08K 5/11 - EstersEther-esters of acyclic polycarboxylic acids

80.

Cellulose Ester Polymer Product With Increased Melt Flow Properties and Reflectance

      
Application Number 18335662
Status Pending
Filing Date 2023-06-15
First Publication Date 2023-12-21
Owner Celanese International Corporation (USA)
Inventor
  • Combs, Michael
  • Hughes, Ronald
  • Li, Rongfu
  • Huang, Chongwen
  • Zhang, Xiaowei
  • Mcgrady, Christopher

Abstract

A polymer composition comprising a cellulose ester polymer in combination with a property enhancing agent. The property enhancing agent is combined with the cellulose ester polymer in an amount sufficient to improve at least one physical property. For instance, in one aspect, the melt processing characteristics of the polymer composition can be improved. Alternatively or in addition, molded articles made from the polymer composition can have improved surface characteristics. The property enhancing agent can be an acidic species, such as a diprotic, organic acid.

IPC Classes  ?

81.

CELLULOSE ESTER POLYMER PRODUCT WITH INCREASED MELT FLOW PROPERTIES AND REFLECTANCE

      
Application Number US2023025419
Publication Number 2023/244729
Status In Force
Filing Date 2023-06-15
Publication Date 2023-12-21
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Combs, Michael
  • Hughes, Ronald
  • Li, Rongfu
  • Huang, Chongwen
  • Zhang, Xiaowei
  • Mcgrady, Christopher

Abstract

A polymer composition comprising a cellulose ester polymer in combination with a property enhancing agent. The property enhancing agent is combined with the cellulose ester polymer in an amount sufficient to improve at least one physical property. For instance, in one aspect, the melt processing characteristics of the polymer composition can be improved. Alternatively or in addition, molded articles made from the polymer composition can have improved surface characteristics. The property enhancing agent can be an acidic species, such as a diprotic, organic acid.

IPC Classes  ?

  • C08B 3/06 - Cellulose acetate
  • C08B 3/26 - Isolation of the cellulose ester
  • C08B 3/22 - Post-esterification treatments, including purification
  • C08B 3/28 - Isolation of the cellulose ester by precipitation

82.

Microporous Membrane With Enhanced Electrolyte Wettability

      
Application Number 18250896
Status Pending
Filing Date 2020-10-28
First Publication Date 2023-11-30
Owner Celanese International Corporation (USA)
Inventor
  • Ohm, Christian
  • Markgraf, Kirsten
  • Tsami-Schullte, Argiri
  • Tao, Fangfang

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more surface tension reducing techniques. In one aspect, the surface tension reducing technique includes adding a filler or chemical component to the polyethylene polymer for increasing wettability. Alternatively, the surface tension reducing technique can be a surface treatment, such as a plasma treatment. Polymer articles made in accordance with the present disclosure can have dramatically increased wettability properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.

IPC Classes  ?

  • C08L 23/06 - Polyethene
  • C08J 3/075 - Macromolecular gels
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • C08J 9/36 - After-treatment
  • C08K 3/22 - OxidesHydroxides of metals
  • C08K 5/06 - EthersAcetalsKetalsOrtho-esters
  • H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/417 - Polyolefins
  • H01M 50/434 - Ceramics
  • H01M 50/406 - MouldingEmbossingCutting

83.

Fiber Reinforced Thermoplastic Polymer Composition With Flame Retardant Properties

      
Application Number 18312134
Status Pending
Filing Date 2023-05-04
First Publication Date 2023-11-09
Owner Celanese International Corporation (USA)
Inventor
  • Eastep, David W.
  • Johnson, Aaron H.

Abstract

A long fiber-reinforced polymer composition is disclosed having excellent flame retardant properties, optionally in combination with long-term heat stability. The flame retardant composition can include a flame retardant system comprised of only two flame retardant components. The composition can display excellent flame resistant properties at extremely small thicknesses. The composition can also contain a stabilizer package that dramatically improves heat aging properties.

IPC Classes  ?

  • C08K 7/14 - Glass
  • C08K 5/50 - Phosphorus bound to carbon only
  • C08K 5/20 - Carboxylic acid amides
  • C08L 77/10 - Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids
  • C08K 3/32 - Phosphorus-containing compounds

84.

FIBER REINFORCED THERMOPLASTIC POLYMER COMPOSITION WITH FLAME RETARDANT PROPERTIES

      
Application Number US2023020930
Publication Number 2023/215434
Status In Force
Filing Date 2023-05-04
Publication Date 2023-11-09
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Eastep, David W.
  • Johnson, Aaron H.

Abstract

A long fiber-reinforced polymer composition is disclosed having excellent flame retardant properties, optionally in combination with long-term heat stability. The flame retardant composition can include a flame retardant system comprised of only two flame retardant components. The composition can display excellent flame resistant properties at extremely small thicknesses. The composition can also contain a stabilizer package that dramatically improves heat aging properties.

IPC Classes  ?

  • D02G 3/04 - Blended or other yarns or threads containing components made from different materials
  • D03D 15/283 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
  • D06M 15/673 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing phosphorus in the main chain containing phosphorus and nitrogen in the main chain
  • C07F 9/30 - Phosphinic acids [R2=P(:O)OH]Thiophosphinic acids
  • D01F 1/07 - Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments

85.

VINYL ACETATE-BASED COPOLYMER DISPERSIONS WITH SMALL PARTICLE SIZE

      
Application Number 17923151
Status Pending
Filing Date 2020-04-08
First Publication Date 2023-11-02
Owner Celanese International Corporation (USA)
Inventor
  • Müller, Harmin
  • Seib, Matthias
  • Tsami-Schulte, Argiri
  • Van Voorn, Bastiaan

Abstract

Aqueous copolymer dispersions are useful for incorporating into primer formulations. The aqueous copolymer dispersions comprise a vinyl acetate-based copolymer and have a particle size of less than or equal to 120 nanometers. The resulting primer formulations have good penetration in various substrates, and/or water resistance/binding properties.

IPC Classes  ?

  • C08F 210/02 - Ethene
  • C09D 123/08 - Copolymers of ethene
  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
  • C09D 5/02 - Emulsion paints

86.

OXIDIZED POROUS FILMS

      
Application Number CN2022089024
Publication Number 2023/206007
Status In Force
Filing Date 2022-04-25
Publication Date 2023-11-02
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Ditter, David
  • Ohm, Christian
  • Sun, Yingying
  • Walkenhorst, Rainer
  • Tao, Fangfang

Abstract

Porous polymer films and fibers are disclosed that are subjected to an oxygen plasma treatment without causing a deterioration of mechanical properties. In one aspect, the plasma process can be a low pressure plasma process with microwave discharge. Exposure times can be minimized for preserving physical properties. Porous polymer films made according to the present disclosure can show dramatically improved wicking properties when tested against electrolyte solutions, indicating a significant increase in ion conductivity.

IPC Classes  ?

87.

Acesulfame Potassium Compositions and Processes for Producing Same

      
Application Number 18335296
Status Pending
Filing Date 2023-06-15
First Publication Date 2023-10-19
Owner Celanese International Corporation (USA)
Inventor
  • Mollenkopf, Christoph
  • Groer, Peter
  • Yadav, Arvind

Abstract

Compositions and processes for producing high purity acesulfame potassium are described. One process comprises the steps of forming a cyclic sulfur trioxide adduct; hydrolyzing the cyclic sulfur trioxide adduct to form an acesulfame-H composition comprising acesulfame-H; neutralizing the acesulfame-H in the acesulfame-H composition to form a crude acesulfame potassium composition comprising acesulfame potassium and less than 2800 wppm acetoacetamide-N-sulfonic acid, wherein the neutralizing step is conducted or maintained at a pH at or below 11.0; and treating the crude acesulfame potassium composition to form the finished acesulfame potassium composition comprising acesulfame potassium and less than 37 wppm acetoacetamide-N-sulfonic acid.

IPC Classes  ?

88.

Cellulose Ester Composition With Improved Transparency and Articles Made Therefrom

      
Application Number 18297319
Status Pending
Filing Date 2023-04-07
First Publication Date 2023-10-12
Owner Celanese International Corporation (USA)
Inventor
  • Hughes, Ronald
  • Li, Rongfu
  • Combs, Michael

Abstract

A polymer composition containing a cellulose ester polymer in combination with one or more plasticizers. The plasticizer can comprise a polyethylene glycol and/or triacetin. The polyethylene glycol plasticizer can have a number average molecular weight that has been found to improve one or more properties of the composition or of articles made from the composition.

IPC Classes  ?

89.

Color stable and low wear polymer composition and articles made therefrom

      
Application Number 18323876
Grant Number 12157812
Status In Force
Filing Date 2023-05-25
First Publication Date 2023-10-12
Grant Date 2024-12-03
Owner Celanese International Corporation (USA)
Inventor
  • Zia, Qamer
  • Seelmann, Thomas
  • Markgraf, Kirsten

Abstract

A colorized and tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer in combination with at least one tribological modifier. The tribological modifier may include a fluoropolymer. The polymer composition further contains at least one coloring agent in combination with a color stabilizer. The color stabilizer has been found to dramatically improve color consistency. Polymer articles molded from the polymer composition not only have excellent surface appearance but have excellent low friction characteristics when tested against aluminum.

IPC Classes  ?

  • C08L 61/02 - Condensation polymers of aldehydes or ketones only
  • B65G 15/32 - Belts or like endless load-carriers made of rubber or plastics

90.

Acesulfame Potassium Compositions and Processes for Producing Same

      
Application Number 18335285
Status Pending
Filing Date 2023-06-15
First Publication Date 2023-10-12
Owner Celanese International Corporation (USA)
Inventor
  • Mollenkopf, Christoph
  • Groer, Peter
  • Yadav, Arvind

Abstract

Compositions and processes for producing high purity acesulfame potassium are described. One process comprises the steps of providing a crude acesulfame potassium composition comprising acesulfame potassium and acetoacetamide, concentrating the crude acesulfame potassium composition to form a water stream and an intermediate acesulfame potassium composition comprising acesulfame potassium and less than 33 wppm acetoacetamide, and separating the intermediate acesulfame potassium composition to form the finished acesulfame potassium composition comprising acesulfame potassium and less than 33 wppm acetoacetamide. The concentrating step is conducted at a temperature below 90° C. and the separating step is conducted at a temperature at or below 35° C.

IPC Classes  ?

91.

Acesulfame Potassium Compositions and Processes for Producing Same

      
Application Number 18335325
Status Pending
Filing Date 2023-06-15
First Publication Date 2023-10-12
Owner Celanese International Corporation (USA)
Inventor
  • Mollenkopf, Christoph
  • Groer, Peter
  • Yadav, Arvind

Abstract

A process for producing acesulfame potassium, the process comprising the steps of providing a cyclizing agent composition comprising a cyclizing agent and a solvent and having an initial temperature, cooling the cyclizing agent composition to form a cooled cyclizing agent composition having a cooled temperature less than 35° C., reacting an acetoacetamide salt with the cyclizing agent in the cooled cyclizing agent composition to form a cyclic sulfur trioxide adduct composition comprising cyclic sulfur trioxide adduct; and, forming from the cyclic sulfur trioxide adduct in the cyclic sulfur trioxide adduct composition the finished acesulfame potassium composition comprising non-chlorinated acesulfame potassium and less than 39 wppm 5-chloro-acesulfame potassium. The cooled temperature is at least 2° C. less than the initial temperature.

IPC Classes  ?

92.

Acesulfame Potassium Compositions and Processes for Producing Same

      
Application Number 18335345
Status Pending
Filing Date 2023-06-15
First Publication Date 2023-10-12
Owner Celanese International Corporation (USA)
Inventor
  • Mollenkopf, Christoph
  • Groer, Peter
  • Yadav, Arvind

Abstract

Improved processes for producing high purity acesulfame potassium. In one embodiment, the process comprises the steps of contacting a solvent, e.g., dichloromethane, and a cyclizing agent, e.g., sulfur trioxide, to form a cyclizing agent composition and reacting an acetoacetamide salt with the cyclizing agent in the composition to form a cyclic sulfur trioxide adduct. The contact time is less than 60 minutes. The process also comprises forming from the cyclic sulfur trioxide adduct composition a finished acesulfame potassium composition comprising non-chlorinated, e.g., non-chlorinated, acesulfame potassium and less than 35 wppm 5-halo acesulfame potassium, preferably less than 5 wppm.

IPC Classes  ?

  • C07D 291/06 - Six-membered rings
  • A23L 27/30 - Artificial sweetening agents
  • C07C 235/74 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups and doubly-bound oxygen atoms bound to the same carbon skeleton with the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of a saturated carbon skeleton

93.

CELLULOSE ESTER COMPOSITION WITH IMPROVED TRANSPARENCY AND ARTICLES MADE THEREFROM

      
Application Number US2023017813
Publication Number 2023/196552
Status In Force
Filing Date 2023-04-07
Publication Date 2023-10-12
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Hughes, Ronald
  • Li, Rongfu
  • Combs, Michael

Abstract

A polymer composition containing a cellulose ester polymer in combination with one or more plasticizers. The plasticizer can comprise a polyethylene glycol and/or triacetin. The polyethylene glycol plasticizer can have a number average molecular weight that has been found to improve one or more properties of the composition or of articles made from the composition.

IPC Classes  ?

94.

Cellulose Ester Composition With Enhanced Properties and Articles Made Therefrom

      
Application Number 18297340
Status Pending
Filing Date 2023-04-07
First Publication Date 2023-10-12
Owner Celanese International Corporation (USA)
Inventor
  • Li, Rongfu
  • Combs, Michael
  • Zhang, Xiaowei
  • Huang, Chongwen
  • Mcgrady, Christopher

Abstract

A polymer composition containing a cellulose ester polymer in combination with one or more plasticizers. One of the plasticizers can be polyethylene glycol. The polyethylene glycol plasticizer can have a number average molecular weight that has been found to improve one or more properties of the composition or of articles made from the composition.

IPC Classes  ?

95.

CELLULOSE ESTER COMPOSITION WITH ENHANCED PROPERTIES AND ARTICLES MADE THEREFROM

      
Application Number US2023017809
Publication Number 2023/196548
Status In Force
Filing Date 2023-04-07
Publication Date 2023-10-12
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Li, Rongfu
  • Combs, Michael
  • Zhang, Xiaowei
  • Huang, Chongwen
  • Mcgrady, Christopher

Abstract

A polymer composition containing a cellulose ester polymer in combination with one or more plasticizers. One of the plasticizers can be polyethylene glycol. The polyethylene glycol plasticizer can have a number average molecular weight that has been found to improve one or more properties of the composition or of articles made from the composition.

IPC Classes  ?

  • C08L 1/10 - Esters of organic acids
  • B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
  • C08K 5/06 - EthersAcetalsKetalsOrtho-esters

96.

METHODS AND SYSTEMS OF MONITORING FLAMMABILITY OF VARIOUS STREAMS DURING VINYL ACETATE PRODUCTION

      
Application Number 18330696
Status Pending
Filing Date 2023-06-07
First Publication Date 2023-10-05
Owner Celanese International Corporation (USA)
Inventor
  • Alexander, Steve R.
  • Hanks, Kevin Clair
  • Somerville, Stacey
  • Lee, David S. C.
  • Devlin, Christopher Paul

Abstract

Methods and systems for producing vinyl acetate may use flammability limit (FL) formulas with improved efficiencies at more than one location in the vinyl acetate production process. Herein, FLs can be used at one or more of four portions of the vinyl acetate production process: the reactor, the process-to-process heat exchangers, the carbon dioxide removal system, and the ethylene recovery system. Such FLs are functions of operating conditions and include at least one interaction term that represents the interrelation of two or more of the operating conditions (e.g., temperature, pressure, and component concentration) on the FL.

IPC Classes  ?

  • C07C 67/05 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation
  • C07C 69/15 - Vinyl acetate

97.

High Clarity Polysaccharide Ester Polymer Composition Containing Odor Control Agent

      
Application Number 18119612
Status Pending
Filing Date 2023-03-09
First Publication Date 2023-10-05
Owner Celanese International Corporation (USA)
Inventor
  • Zhang, Xiaowei
  • Huang, Chongwen
  • Mcgrady, Christopher

Abstract

A polymer composition is disclosed formed from a polysaccharide ester polymer, a plasticizer, and at least one odor control agent. The odor control agent is designed to control odors and/or acid emissions during melt processing of the composition without significantly interfering with the optical characteristics of the composition.

IPC Classes  ?

  • C08L 1/12 - Cellulose acetate
  • C08K 5/00 - Use of organic ingredients
  • C08K 3/105 - Compounds containing metals of Groups 1 to 3 or of Groups 11 to 13 of the Periodic Table
  • C08J 5/18 - Manufacture of films or sheets

98.

Cellulose Ester Polymer Product With Increased Melt Flow Rate

      
Application Number 18120201
Status Pending
Filing Date 2023-03-10
First Publication Date 2023-10-05
Owner Celanese International Corporation (USA)
Inventor
  • Li, Rongfu
  • Combs, Michael
  • Hughes, Ronald

Abstract

A polymer composition comprising a cellulose ester polymer in combination with a chain scission agent. The chain scission agent reacts with the cellulose ester polymer and decreases the intrinsic viscosity of the polymer. In this manner, the flow properties of the cellulose ester polymer can be dramatically improved. For instance, the melt flow rate of the polymer can increase making the polymer more amenable to molding processes.

IPC Classes  ?

99.

POLYMER COMPOSITION BLEND AND MEMBRANES MADE THEREFROM

      
Application Number US2023015856
Publication Number 2023/183359
Status In Force
Filing Date 2023-03-22
Publication Date 2023-09-28
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Tao, Fangfang
  • Ohm, Christian
  • Sun, Yingying
  • Ditter, David

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains at least three different polyethylene polymers, namely a lower molecular weight polyethylene polymer, a mid-range molecular weight polyethylene polymer, and a high molecular weight polyethylene polymer. Combining the different polyethylene polymers in different ratios can optimize not only mechanical properties but improve processing.

IPC Classes  ?

100.

Polymer Composition Blend and Membranes Made Therefrom

      
Application Number 18124848
Status Pending
Filing Date 2023-03-22
First Publication Date 2023-09-28
Owner CELANESE INTERNATIONAL CORPORATION (USA)
Inventor
  • Tao, Fangfang
  • Ohm, Christian
  • Sun, Yingying
  • Ditter, David

Abstract

A polymer composition for producing gel extruded articles is described. The polymer composition contains at least three different polyethylene polymers, namely a lower molecular weight polyethylene polymer, a mid-range molecular weight polyethylene polymer, and a high molecular weight polyethylene polymer. Combining the different polyethylene polymers in different ratios can optimize not only mechanical properties but improve processing.

IPC Classes  ?

  • C08L 23/06 - Polyethene
  • B01D 71/26 - Polyalkenes
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
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