Abrégé

Anti-fog compositions comprising a primary film having opposing major planar surfaces and a central coplanar region disposed between the opposing major planar surfaces and comprising cellulose acetate and a plasticizer. The cellulose acetate may have a degree of substitution less than 2.6. The plasticizer may be selected from the group consisting of 1,2,3-triacetoxypropane (triacetin), tributyl citrate, triethyl citrate, triphenyl phosphate, tris(clorisopropyl)phosphate, dimethyl phthalate, diethyl phthalate, bornan-2-one, PEG-DGE, PPG-DGE, tributyl phosphate, and combinations thereof. The primary film has a thickness greater than 90 microns.

Classes IPC  ?

• C08K 5/12 - Esters; Ether-esters d'acides polycarboxyliques cycliques
• B29D 7/01 - Pellicules ou feuilles
• B29C 39/00 - Moulage par coulée, c. à d. en introduisant la matière à mouler dans un moule ou entre des surfaces enveloppantes sans pression significative de moulage; Appareils à cet effet
• C08K 5/07 - Aldéhydes; Cétones
• C08K 5/11 - Esters; Ether-esters d'acides polycarboxyliques acycliques
• C08K 5/527 - Esters cycliques
• B29C 71/00 - Post-traitement d'objets sans modification de leur forme; Appareils à cet effet
• C08K 5/521 - Esters des acides phosphoriques, p.ex. de H3PO4
• C08K 3/36 - Silice
• C08K 5/00 - Emploi d'ingrédients organiques
• B29C 41/12 - Etalement de la matière à mouler sur un support
• C08J 5/18 - Fabrication de bandes ou de feuilles
• C08J 3/18 - Plastification de composés macromoléculaires
• B29K 1/00 - Utilisation de cellulose, de cellulose modifiée ou de dérivés de cellulose, p.ex. de viscose, comme matière de moulage
• B29K 105/00 - Présentation, forme ou état de la matière moulée
• B29L 7/00 - Objets plats, p.ex. pellicules ou feuilles
• B29K 509/08 - Verre

Abrégé

Cellulose ester plastics may be formulated to have a depressed melt processing temperatures, improved heat resistance, increased mechanical stability, or some combination thereof. For example, in some instances, a cellulose ester plastic may include a plasticized cellulose ester at about 1% to about 99% by weight of the cellulose ester plastic, the plasticized cellulose ester consisting of a cellulose ester at about 60% to about 90% by weight of the plasticized cellulose ester and a plasticizer at about 10% to about 40% by weight of the plasticized cellulose ester, wherein the plasticizer comprises a carbonate ester, a polyol benzoate, or both; and a thermoplastic polymer at about 1% to about 99% by weight of the cellulose ester plastic; and wherein the cellulose ester plastic is melt processable.

Classes IPC  ?

• C08L 1/10 - Esters des acides organiques
• C08K 5/10 - Esters; Ether-esters
• C08K 5/057 - Alcoolates métalliques
• C08J 5/00 - Fabrication d'objets ou de matériaux façonnés contenant des substances macromoléculaires
• B29C 41/18 - Moulage par embouage, c. à d. en versant la matière à mouler dans un moule creux et en décantant l'excédent

Abrégé

Cellulose ester plastics may be formulated to have a depressed melt processing temperatures, improved heat resistance, increased mechanical stability, or some combination thereof. For example, in some instances, a cellulose ester plastic comprising: a cellulose ester at about 20% to about 90% by weight of the cellulose ester plastic; and a plasticizer that comprises a carbonate ester, a polyol benzoate, or both, wherein the plasticizer is at about 2% to about 40% by weight of the cellulose ester plastic, wherein the cellulose ester plastic is melt processable.

Classes IPC  ?

• C08L 1/10 - Esters des acides organiques
• C08K 5/057 - Alcoolates métalliques
• C08K 5/109 - Esters; Ether-esters d'acide carbonique
• C08J 5/00 - Fabrication d'objets ou de matériaux façonnés contenant des substances macromoléculaires

Abrégé

A process for producing an anti-fog consumer product. The process comprises the steps of forming a precursor composition comprising cellulose acetate and plasticizer to yield a substantially rigid consumer product having an outer surface; and saponifying at least a portion of the substantially rigid consumer product to yield the anti-fog consumer product having a degree of substitution at the outer surface of less than 0.75.

Classes IPC  ?

• C08L 1/12 - Acétate de cellulose
• C09D 101/12 - Acétate de cellulose
• C08J 5/18 - Fabrication de bandes ou de feuilles

Abrégé

A process for treating a cellulosic material comprising pretreating the cellulosic material and then extracting the cellulosic material with an extractant to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises a cellulose solvent and a co-solvent. The cellulosic product advantageously retains its cellulosic fiber morphology. The processes involve separating and recovering the hemicellulose and separating and recycling various process streams employed in the process.

Classes IPC  ?

• C08H 8/00 - Composés macromoléculaires dérivés de matériaux lignocellulosiques
• C08B 37/00 - Préparation des polysaccharides non prévus dans les groupes ; Leurs dérivés

Abrégé

In some instances, adhesives may include a cellulose ester and a plasticizer in an amount of about 15% or greater by weight of the adhesive, wherein the plasticizer comprises a nonionic surfactant. In some instances, adhesives may include a cellulose ester and a mixture of two or more plasticizers in an amount of about 15% or greater by weight of the adhesive, wherein a melt flow index of the adhesive melt is greater than comparable adhesive melts that comprise the cellulose ester and only one of the plasticizers at the same amount.

Classes IPC  ?

• C09J 101/08 - Dérivés de la cellulose
• C09J 11/06 - Additifs non macromoléculaires organiques

Abrégé

Liquid adhesives may be produced that include plasticized cellulose esters, plasticized starch ester, or both. For example, an adhesive may include a cellulose ester, a starch ester, or both at about 1% to about 30% by weight of the adhesive; and a plasticizer, wherein the adhesive has a dynamic viscosity of about 100 Pa•s or less at 25°C and a shear rate of 40 s-1.In some instances, the plasticizer may be at about 20% to about 97% by weight of the adhesive, about 40% to about 97% by weight of the adhesive, or about 80% to about 97% by weight of the adhesive. In some instances, the adhesive may consist essentially of (1) the plasticizer and (2) the cellulose ester, the starch ester, or both.

Classes IPC  ?

• C09J 101/10 - Esters d'acides organiques

Abrégé

In some instances, an adhesive may include a plasticizer in an amount of about 15% or greater by weight of the adhesive; and a cellulose acetate having a relationship between an acetyl value and an intrinsic viscosity according to Equation 1 of about 2.80 to about 3.85 (or about 2.80 to about 3.20): (Equation 1).

Classes IPC  ?

• C09J 101/02 - Cellulose; Cellulose modifiée
• C09J 11/02 - Additifs non macromoléculaires

Abrégé

Adhesives may include a base polymer composition, optionally a tackifying resin, optionally a wax, and optionally additives (e.g., plasticizers, fillers, antioxidants, and the like, and combinations thereof), where the base polymer comprises a highly plasticized cellulose ester and optionally polymers traditionally used in pressure sensitive adhesives, hot melt pressure sensitive adhesives, or hot melt adhesives (e.g., ethylene vinyl acetate copolymers, polysiloxanes, and polyurethanes).

Classes IPC  ?

• C09J 101/02 - Cellulose; Cellulose modifiée

Abrégé

A drug delivery vehicle (e.g., a patch, a pill, an intravaginal ring, and an implant) may include a polymer matrix comprising a plasticizer and at least one selected from the group consisting of: a cellulose ester, a cellulose ether, a starch ester, a starch ether, and a combination thereof. A drug may be dispersed in the polymer matrix, in another portion of the drug delivery vehicle, or both.

Classes IPC  ?

• A61K 9/70 - Bases pour bande, feuille ou filament
• A61K 47/06 - Composés organiques, p.ex. hydrocarbures naturels ou synthétiques, polyoléfines, huile minérale, gelée de pétrole ou ozocérite
• A61K 47/30 - Composés macromoléculaires organiques ou inorganiques, p.ex. polyphosphates inorganiques
• A61K 47/36 - Polysaccharides; Leurs dérivés, p.ex. gommes, amidon, alginate, dextrine, acide hyaluronique, chitosane, inuline, agar-agar ou pectine
• A61K 47/38 - Cellulose; Ses dérivés

Abrégé

Hemicellulose compositions are prepared by treating a cellulosic material with an extractant comprising a cellulose solvent and co-solvent. The hemicellulose compositions preferably comprise from 55 to 99 wt.% xylan and have distinct molecular weights, elemental metal ions, and intrinsic viscosities when compared to known hemicellulose compositions.

Classes IPC  ?

• C08L 5/14 - Hemicellulose; Ses dérivés
• C08J 3/075 - Gels macromoléculaires
• C08H 8/00 - Composés macromoléculaires dérivés de matériaux lignocellulosiques
• C08B 37/00 - Préparation des polysaccharides non prévus dans les groupes ; Leurs dérivés

Abrégé

Disclosed are methods for packaging fibrous materials such as cellulose acetate tow bales. The method may comprise placed a fibrous material (10) between an upper sheet (20) and a lower sheet (15), folding the upper (20) and lower (15) sheets around the fibrous material (10), and connecting the upper sheet (20) and lower sheet (15) with a tape (35), such as a pressure sensitive adhesive tape.

Classes IPC  ?

• B65B 27/12 - Mise en balles ou en paquets de matériaux fibreux compressibles, p.ex. tourbe

Abrégé

Dissolving-grade pulp compositions are prepared by treating a cellulosic material with an extractant comprising a cellulose solvent and co-solvent. The dissolving-grade pulp compositions comprise at least 90 wt.% glucan, from 0.6 to 5 wt.% xylan, and have distinct molecular weights, and elemental metal ions from known and commercially available dissolving-grade pulp compositions.

Classes IPC  ?

• D21H 11/00 - Pâte ou papier comprenant des fibres de cellulose ou de lignocellulose uniquement d'origine naturelle 
• C08K 3/08 - Métaux
• C08L 5/00 - Compositions contenant des polysaccharides ou leurs dérivés non prévus dans les groupes ou

Abrégé

The adhesive compositions that include starch derivatives, plasticizers, optionally cellulose derivatives, and optionally other additives. By tailoring the composition and concentration of these components, hot melt adhesive compositions, hot melt pressure sensitive adhesive compositions, and pressure sensitive adhesives have been produced. Further, these adhesive compositions may be useful in articles including diapers, laminates, repositionable advertisements, and many more.

Classes IPC  ?

• C09J 103/00 - Adhésifs à base d'amidon, d'amylose ou d'amylopectine ou de leurs dérivés ou de leurs produits de dégradation

Abrégé

Anti-fog compositions comprising a primary film having opposing major planar surfaces and a central coplanar region, and processes for making such anti-fog compositions. The central coplanar region is disposed between the opposing major planar surfaces. The primary film comprises cellulose acetate, plasticizer, and an anti-blocking agent. The anti-blocking agent has an average particle size ranging from 0.02 microns to 6 microns. The cellulose acetate has a degree of substitution that increases from the opposing major planar surfaces toward the central coplanar region or that is substantially constant throughout the thickness of the composition. The composition is formed by saponifying a precursor film to improve hydrophilicity.

Classes IPC  ?

• B32B 23/20 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant des esters
• C08J 5/18 - Fabrication de bandes ou de feuilles

Abrégé

Anti-fog compositions comprising a primary film having opposing major planar surfaces and a central coplanar region, and processes for making such anti-fog compositions. The central coplanar region is disposed between the opposing major planar surfaces. The primary film comprises cellulose acetate, plasticizer, and an anti-blocking agent. The anti-blocking agent has an average particle size ranging from 0.02 microns to 6 microns. The cellulose acetate has a degree of substitution that increases from the opposing major planar surfaces toward the central coplanar region or that is substantially constant throughout the thickness of the composition. The composition is formed by saponifying a precursor film to improve hydrophilicity.

Classes IPC  ?

• B32B 23/20 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant des esters
• C08J 5/18 - Fabrication de bandes ou de feuilles

Abrégé

Anti-fog compositions comprising a primary film having opposing major planar surfaces and a central coplanar region, and processes for making such anti-fog compositions. The central coplanar region is disposed between the opposing major planar surfaces. The primary film comprises cellulose acetate, plasticizer, and an anti-blocking agent. The anti-blocking agent has an average particle size ranging from 0.02 microns to 6 microns. The cellulose acetate has a degree of substitution that increases from the opposing major planar surfaces toward the central coplanar region or that is substantially constant throughout the thickness of the composition. The composition is formed by saponifying a precursor film to improve hydrophilicity.

Classes IPC  ?

• C08K 3/36 - Silice
• C08K 5/11 - Esters; Ether-esters d'acides polycarboxyliques acycliques
• C08K 5/523 - Esters des acides phosphoriques, p.ex. de H3PO4 avec des composés hydroxyaryliques
• C08K 5/12 - Esters; Ether-esters d'acides polycarboxyliques cycliques
• C08K 5/07 - Aldéhydes; Cétones
• C08K 5/1515 - Cycles à trois chaînons
• C08K 5/521 - Esters des acides phosphoriques, p.ex. de H3PO4
• B29D 7/01 - Pellicules ou feuilles
• B29C 41/12 - Etalement de la matière à mouler sur un support
• C08J 5/18 - Fabrication de bandes ou de feuilles
• B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
• B32B 23/04 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant de telles substances comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique
• B32B 23/08 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant de telles substances comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique
• B32B 23/16 - Agents modificateurs
• B32B 23/20 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant des esters
• B32B 27/32 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyoléfines
• B32B 27/36 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyesters
• B29K 1/00 - Utilisation de cellulose, de cellulose modifiée ou de dérivés de cellulose, p.ex. de viscose, comme matière de moulage
• B29K 105/00 - Présentation, forme ou état de la matière moulée
• B29K 509/08 - Verre

Abrégé

Porous masses that include taggants may provide for product authentication and counterfeit identification, especially products like smoking device filters and smoking devices. In some instances, a tagged porous mass may include a plurality of binder particles; a taggant that comprises at least one taggant component selected from the group consisting of an elemental marker, a molecular fluorophore, a particulate fluorophore, and any combination thereof; a plurality of second particles, wherein the second particles comprise at least one selected from the group consisting of active particles, organic particles, and any combination thereof; and wherein the binder particles are bound to the second particles at sintered contact points.

Classes IPC  ?

• A24D 3/02 - Fabrication de filtres à fumée de tabac
• A24D 3/04 - Filtres à fumée de tabac caractérisés par leur forme ou leur structure

Abrégé

Integration of an acid recovery system in the manufacturing of cellulose esters may include heat recovery from a carboxylic acid recovery distillation column by solvent extracting a weak acid stream to form a first overhead stream and a first bottoms stream; distilling the first overhead stream in a distillation column to form a second overhead stream and a second bottoms stream; sending at least a portion of the second overhead stream to a heat exchanger via a process inlet; sending a boiler feed water make up stream to the heat exchanger via a water inlet; and cooling the at least a portion of the second overhead stream in the heat exchanger, such that the at least a portion of second overhead stream exits the heat exchanger via a process outlet and the boiler feed water make up stream exits the heat exchanger via a water outlet.

Classes IPC  ?

• C08B 3/16 - Préparation d'esters cellulosiques organiques mixtes

Abrégé

Integration of a carboxylic anhydride purification system in the manufacturing of cellulose esters may include processes that includes distilling the crude carboxylic anhydride stream (that includes a carboxylic anhydride and a carboxylic acid) in a distillation column having an overhead or side stream comprising purified, vaporous carboxylic anhydride and a bottoms stream; heating a steam condensate stream in a steam generator to yield a low-temperature steam; and cooling at least a portion of the overhead or side stream to yield a cooled overhead or side stream. In some instances, a heat exchanger may be utilized in parallel or series with the steam generator.

Classes IPC  ?

• C07C 51/44 - Séparation; Purification; Stabilisation; Emploi d'additifs par changement de l'état physique, p.ex. par cristallisation par distillation
• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p.ex. extraction
• C08B 3/06 - Acétate de cellulose
• C08B 3/16 - Préparation d'esters cellulosiques organiques mixtes

Abrégé

Cellulose ester films may include taggants to provide for product authentication and counterfeit identification, especially in packaging applications. In some instances, a tagged cellulose ester film may include cellulose ester, a plasticizer, and a taggant, wherein the taggant comprises at least one taggant component selected from the group consisting of an elemental marker, a molecular fluorophore, a particulate fluorophore, and any combination thereof.

Classes IPC  ?

• C08J 5/18 - Fabrication de bandes ou de feuilles
• C08L 1/02 - Cellulose; Cellulose modifiée
• C08L 1/10 - Esters des acides organiques
• C08K 5/04 - Composés contenant de l'oxygène

Abrégé

Modified feeding trays for use in the production of segmented filters may be advantageous when handling filter rods that are porous masses. A modified feeding tray may include a rectangular bottom; opposing first and second sidewalls coupled to corresponding first and second edges of the rectangular bottom; a third sidewall coupled to a third edge of the rectangular bottom and extending between the first and second sidewalls; and a shelf extending between the first and second sidewalls at an intermediate location along a length of each of the first and second sidewalls and thereby defining an open compartment formed by the first and second sidewalls, the shelf, and the bottom, and a closed compartment defined by the first, second, and third sidewalls, the shelf, and the bottom. In some instances, the shelf may be repositionable within the modified feeding tray.

Classes IPC  ?

• B65D 85/00 - Réceptacles, éléments d'emballage ou paquets spécialement adaptés à des objets ou à des matériaux particuliers

Abrégé

Highly-plasticized cellulose esters may be useful as adhesives, including for use in producing laminates. For example, producing a laminate may include providing an adhesive melt that comprises an adhesive that comprises a cellulose ester and a plasticizer, the plasticizer included in an amount of about 30% to about 75% by weight of the adhesive; applying the adhesive melt to a substrate; and allowing the adhesive melt to cool so as to yield a laminate on the substrate.

Classes IPC  ?

• C09J 7/00 - Adhésifs sous forme de films ou de pellicules
• C09J 7/02 - sur supports
• C09J 101/26 - Ethers cellulosiques
• C08J 5/18 - Fabrication de bandes ou de feuilles

Abrégé

Smoke filters that reduce the concentration of carbon monoxide and phenols in a smoke stream may include a porous mass section comprising a plurality of active particles, a plurality of binder particles, and an active coating disposed on at least a portion of the active particles and the binder particles, wherein the active particles and the binder particles are bound together at a plurality of contact points; and a filter section. In some instances, a filter may include a porous mass section comprising a plurality of active particles and a plurality of binder particles, wherein the active particles and the binder particles are bound together at a plurality of contact points without an adhesive; and a filter section comprising an active dopant.

Classes IPC  ?

• A24D 3/06 - Emploi de matériaux particuliers pour les filtres à fumée de tabac
• A24D 3/16 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux inorganiques

Abrégé

Shipping containers for porous masses may include a bottom lid having a rectangular lid bottom and four bottom rims that are each continuous with the lid bottom; a tray comprising a tray bottom and four tray sidewalls that are each continuous with the tray bottom defining an interior with an open top; and a top lid having a rectangular lid top and four top rims that are each continuous with the lid top, wherein the tray is configured to be placed on a bottom lid with the bottom rims surrounding a portion of the tray with a top lid placed over the top of the tray with the top rims surrounding a portion of the tray.

Classes IPC  ?

• B65D 85/30 - Réceptacles, éléments d'emballage ou paquets spécialement adaptés à des objets ou à des matériaux particuliers pour objets particulièrement sensibles aux dommages par chocs ou compression
• B65D 5/42 - Réceptacles de section transversale polygonale rigides ou semi-rigides, p.ex. boîtes, cartons ou plateaux, formés en pliant ou montant un ou plusieurs flans de papier - Détails des réceptacles ou des flans de réceptacles pliables ou dressables

Abrégé

Cellulose diester films that include a cellulose diester; a plasticizer; a colorant; and an opacity additive may be useful for playing cards. In some instances, forming cellulose diester films may include preparing a dope that comprises a cellulose diester, a plasticizer, and a solvent; introducing a colorant and an opacity additive into the dope to yield a casting dope; and casting the casting dope into a cellulose diester film. Playing cards may then be produced by methods including, for example, cutting the cellulose diester film and printing on the cellulose diester film.

Classes IPC  ?

• C08L 1/10 - Esters des acides organiques
• C08J 5/18 - Fabrication de bandes ou de feuilles

Abrégé

Mixed cellulose esters derived from natural products (e.g., natural cellulose esters) may be produced by methods that include acylating a cellulose with a natural esterification reactant or a derivative thereof to yield a natural cellulose ester. In some instances, the natural esterification reactant derivative may be a saponified natural esterification reactant. In some instances, the natural cellulose esters may have a glass transition temperature of about -55C to about 170C.

Classes IPC  ?

• C08B 3/26 - Isolement de l'ester cellulosique

Abrégé

Organic porous masses may be used in flavored smoke filters. Production of organic porous masses may involve introducing a matrix material into a mold cavity, the matrix material comprising a plurality of binder particles, a plurality of organic particles, and a microwave enhancement additive; heating at least a portion of the matrix material so as to bind the matrix material at a plurality of contact points, thereby forming an organic porous mass length, wherein heating involves irradiating with microwave radiation the at least a portion of the matrix material; and cutting the organic porous mass length radially thereby yielding an organic porous mass.

Classes IPC  ?

• A24D 3/02 - Fabrication de filtres à fumée de tabac
• A24D 3/08 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux

Abrégé

A method for producing a polysaccharide ester microsphere may include forming a polysaccharide ester product from a polysaccharide synthesis, wherein the polysaccharide ester product comprises a polysaccharide ester and a solvent; diluting the polysaccharide ester product, thereby yielding a polysaccharide ester dope; and forming a plurality of polysaccharide ester microspheres from the polysaccharide ester dope. Suitable polysaccharides may include, but are not limited to, starch, cellulose, hemicellulose, algenates, chitosan, and any combination thereof. Esters thereof may be organic esters (e.g., acetate and the like), inorganic esters (e.g., sulfonates and the like), or combinations thereof. Further, the solids conent of the polysaccharide ester dope, in some instances, may be greater than about 16 wt%.

Classes IPC  ?

• C08B 3/00 - Préparation d'esters cellulosiques d'acides organiques
• C08B 3/26 - Isolement de l'ester cellulosique
• C08B 7/00 - Préparation d'esters cellulosiques d'acides organiques et inorganiques

Abrégé

High-throughput production apparatuses, systems, and associated methods may include pneumatic dense phase feeding. For example, a method may involve feeding via pneumatic dense phase feeding a matrix material into a mold cavity to form a desired cross-sectional shape, the matrix material comprising a binder particle and an active particle; heating (e.g., via microwave irradiation) at least a portion of the matrix material so as to bind the matrix material at a plurality of contact points thereby forming a porous mass length; cooling the porous mass length; and cutting the porous mass length radially thereby producing a porous mass. In some instances, the matrix material may include a plurality of active particles, a plurality of binder particles (optionally having a hydrophilic surface modification), and optionally a microwave enhancement additive.

Classes IPC  ?

• A24D 3/02 - Fabrication de filtres à fumée de tabac
• A24D 3/06 - Emploi de matériaux particuliers pour les filtres à fumée de tabac
• A24C 5/47 - Fixation de filtres ou de bouts aux cigares ou aux cigarettes, p.ex. insertion de filtres dans les cigarettes ou leurs bouts

Abrégé

Wood laminates may comprise a plurality of wood substrates and an adhesive disposed between at least a portion of at least two of the wood substrates, the adhesive comprising a substituted cellulose ester that comprises a cellulose polymer backbone having an organic ester substituent and an inorganic ester substituent that comprises an inorganic, nonmetal atom selected from the group consisting of sulfur, phosphorus, boron, and chlorine. In some instances the adhesive may be substantially formaldehyde-free.

Classes IPC  ?

• B32B 21/08 - Produits stratifiés composés essentiellement de bois, p.ex. une planche de bois, une feuille de placage, une feuille de bois aggloméré comprenant du bois comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine renforcée de fibres
• B32B 23/04 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant de telles substances comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique
• B32B 23/20 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant des esters
• B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives

Abrégé

Fibrous substrates may be adhered to other substrates utilizing substituted cellulose ester adhesives that comprises a cellulose polymer backbone having an organic ester substituent and an inorganic ester substituent that comprises an inorganic, nonmetal atom selected from the group consisting of sulfur, phosphorus, boron, and chlorine.

Classes IPC  ?

• B32B 23/10 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques adjacentes à une couche fibreuse ou filamenteuse
• B32B 23/14 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques caractérisées par leur teneur en ingrédients composites particuliers
• B32B 23/20 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant des esters
• B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
• C08L 1/10 - Esters des acides organiques
• C08J 7/00 - Traitement chimique ou revêtement d'objets façonnés faits de substances macromoléculaires

Abrégé

A substituted cellulose ester having a cellulose backbone with an organic ester substituent and an inorganic ester substituent derived from the inorganic ester oxoacid catalyst may be utilized in adhesive compositions and articles produced therewith. Producing a substituted cellulose ester may, in some embodiments, involve providing a cellulose ester mixture that comprises a cellulose ester and a solvent; and hydrolyzing a mixture that comprises the cellulose ester mixture, water, and an inorganic ester oxoacid catalyst so as to yield a substituted cellulose ester having a cellulose backbone with an organic ester substituent and an inorganic ester substituent derived from the inorganic ester oxoacid catalyst.

Classes IPC  ?

• C09J 101/16 - Esters d'acides inorganiques
• C08B 5/00 - Préparation d'esters cellulosiques d'acides inorganiques
• C08B 5/02 - Nitrate de cellulose
• C08B 5/14 - Sulfate de cellulose

Abrégé

Engineered wood may be produced with substituted cellulose ester adhesives. For example, an engineered wood may comprise a plurality of wood substrates that independently comprise a lignin-containing material (e.g., wood dust, wood particles, wood chips, and the like), the plurality of wood substrates being adhered together with an adhesive that comprises a substituted cellulose ester that comprises a cellulose polymer backbone having an organic ester substituent and an inorganic ester substituent that comprises an inorganic, nonmetal atom selected from the group consisting of sulfur, phosphorus, boron, and chlorine.

Classes IPC  ?

• B27N 3/02 - Fabrication d'objets sensiblement plats, p.ex. panneaux, à partir de particules ou de fibres à partir de particules
• B27N 3/04 - Fabrication d'objets sensiblement plats, p.ex. panneaux, à partir de particules ou de fibres à partir de fibres
• C08L 1/10 - Esters des acides organiques
• C08L 97/02 - Matériau lignocellulosique, p.ex. bois, paille ou bagasse

Abrégé

Porous masses that comprise a plurality of active particles and binder particles bound together at a plurality of contact points may be useful in filters, including articles (like smoking devices) and methods relating thereto. The production of such filters may involve the production of filter rods that involves forming a desired abutting configuration that comprises a plurality of sections, the plurality of sections comprising at least one porous mass section and at least one other filter section; securing the desired abutting configuration so as to yield a segmented filter rod length; and cutting the segmented filter rod length into segmented filter rods, wherein the steps of forming, securing, and cutting are performed so as to produce the segmented filter rods at a rate of about 25 m/min or greater.

Classes IPC  ?

• A24D 3/02 - Fabrication de filtres à fumée de tabac
• A24D 3/00 - Filtres à fumée de tabac, p.ex. bouts filtrants, garnitures filtrantes; Filtres spécialement adaptés aux dispositifs permettant de fumer artificiellement; Bouts pour cigares ou cigarettes

Abrégé

A spinneret having tri-arc holes may be used to produce tri-arc filaments. In some instances, tri-arc holes have a Y-shape with three prongs and each prong having an arc at the end of the prong that tapers from the end of the arc to a connection point of an adjacent arc, and tri-arc filaments have a generally-Y shape cross-section with bulbous or arcing tips. Further, tri-arc filaments may be useful in a plurality of applications including, but not limited to, filters, filters comprising particulate additives, and smoking device filters.

Classes IPC  ?

• A24D 3/04 - Filtres à fumée de tabac caractérisés par leur forme ou leur structure
• A24D 3/06 - Emploi de matériaux particuliers pour les filtres à fumée de tabac
• B01D 39/02 - Substance filtrante non agglomérée, p.ex. fibres
• B01D 39/14 - Autres substances filtrantes autoportantes

Abrégé

A spinneret having tri-arc holes may be used to produce tri-arc filaments. In some instances, tri-arc holes have a Y-shape with three prongs and each prong having an arc at the end of the prong that tapers from the end of the arc to a connection point of an adjacent arc, and tri-arc filaments have a generally-Y shape cross-section with bulbous or arcing tips. Further, tri-arc filaments may be useful in a plurality of applications including, but not limited to, filters, filters comprising particulate additives, and smoking device filters.

Classes IPC  ?

• D01D 5/253 - Formation des filaments, fils ou similaires à section transversale non circulaire; Ensembles de filage à cet effet
• D01F 2/28 - Filaments, ou similaires, artificiels, à un seul composant, formés de cellulose ou de dérivés de la cellulose; Leur fabrication à partir de dérivés de la cellulose à partir d'esters ou d'éthers organiques de cellulose, p.ex. à partir d'acétate de cellulose
• D01D 4/02 - Filières
• D02G 1/00 - Production de fibres, filaments, filés ou fils, crêpés ou ondulés ou leur donnant de telles caractéristiques latentes

Abrégé

Processing of cellulose, and more particularly, fiber opening and downstream processing and chemistry are provided. A process includes moistening a cellulose sheet stock to a water content in a range from about 20% to about 50%, attriting the moistened cellulose sheet to a wet pulp, flash drying the wet pulp to a floccule of cellulose having a moisture content from about 4% to about 8%, and esterifying the floccule of cellulose to provide a cellulose ester product.

Classes IPC  ?

• C08B 3/00 - Préparation d'esters cellulosiques d'acides organiques
• C08B 3/06 - Acétate de cellulose

Abrégé

A tablet contains reagents with catalytic activity, release of which is triggered by exposure of the tablet to water. A malleable capsule includes : (a) a flexible polymer; (b) a plasticizer; and (c) a catalyst disposed within the capsule, wherein a portion of the catalyst is released from the capsule upon exposure of the capsule to water.

Classes IPC  ?

• A24D 3/08 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux
• A24D 3/06 - Emploi de matériaux particuliers pour les filtres à fumée de tabac
• A24D 3/04 - Filtres à fumée de tabac caractérisés par leur forme ou leur structure

Abrégé

The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a diaper having an inner layer having an absorbent core having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; wherein the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate; and an outer layer.

Classes IPC  ?

• A61F 13/53 - Garnitures absorbantes, p.ex. serviettes ou tampons hygiéniques pour application externe ou interne au corps; Moyens pour les maintenir en place ou les fixer; Applicateurs de tampons caractérisées par le milieu absorbant
• A61F 13/49 - Garnitures absorbantes, p.ex. serviettes ou tampons hygiéniques pour application externe ou interne au corps; Moyens pour les maintenir en place ou les fixer; Applicateurs de tampons caractérisées par la forme spécialement adaptées pour être portées autour de la taille, p.ex. couches-culottes
• A61L 15/28 - Polysaccharides ou leurs dérivés

Abrégé

The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a cigarette filter material having a filter having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; wherein the nonmetal is present in at least 0.01% by weight of the substituted cellulose acetate.

Classes IPC  ?

• A24D 3/06 - Emploi de matériaux particuliers pour les filtres à fumée de tabac
• A24D 3/10 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux de cellulose ou de dérivés de la cellulose
• A24D 3/14 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux additionnels
• A24D 1/00 - Cigares; Cigarettes

Abrégé

The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a coating having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; wherein the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.

Classes IPC  ?

• A01C 1/06 - Enrobage ou préparation des semences
• A01C 1/08 - Immunisation des semences
• A01C 1/00 - Appareils ou modes d'emploi des appareils pour éprouver ou traiter les graines, les racines ou analogues avant l'ensemencement ou la plantation

Abrégé

The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a drilling fluid having a base fluid and a viscosifier having a substituted cellulose acetate having a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.

Classes IPC  ?

• C09K 8/10 - Cellulose ou ses dérivés
• C09K 8/588 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement caractérisées par l'utilisation de polymères spécifiques
• E21B 43/22 - Emploi de produits chimiques ou à activité bactérienne

Abrégé

The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a composition having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.

Classes IPC  ?

• C08L 1/12 - Acétate de cellulose
• C08B 3/06 - Acétate de cellulose
• C09J 101/12 - Acétate de cellulose

Abrégé

Systems for producing bulked webs and/or nonwoven materials may include at least one extruder having a plurality of nozzles and a master air jet in communication with at least one extruder to receive a plurality of polymer melt filaments from at least one extruder to form a bulked web. Producing bulked webs may include at least the steps of forming a plurality of polymer melt filaments; passing the plurality of polymer melt filaments through a master air jet thereby forming a bulked web; and collecting the bulked web.

Classes IPC  ?

• D04H 3/033 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de formation des voiles ou couches, p.ex. par la réorientation des fils ou filaments au hasard réorientation immédiatement après la formation du fil ou du filament
• D04H 3/11 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de renforcement ou de consolidation avec liages faits mécaniquement entre fils et filaments par jet de fluide

Abrégé

A system may include a plurality of tow band processing lines and a master air jet in communication with the tow band processing lines to receive a plurality of processed tow bands from the tow band processing lines to form a bulked web. The system may be used to form a bulked web that itself is a nonwoven material or that may be further processed into a nonwoven material.

Classes IPC  ?

• D04H 3/11 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de renforcement ou de consolidation avec liages faits mécaniquement entre fils et filaments par jet de fluide
• D04H 3/03 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de formation des voiles ou couches, p.ex. par la réorientation des fils ou filaments au hasard
• D04H 3/10 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de renforcement ou de consolidation avec liages faits mécaniquement entre fils et filaments
• D04H 3/12 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de renforcement ou de consolidation avec filaments ou fils retenus ensemble par des agents de liage chimiques ou thermo-activables, p.ex. adhésifs, appliqués ou incorporés sous une forme liquide ou solide

Abrégé

Generally, an acquisition distribution layer for absorbent hygiene products may be produced from continuous tow bands. A system for producing such an acquisition distribution layer may include, at least, a tow band processing line and a master air jet in operably connected to the tow band processing line to receive a processed tow band from the tow band processing line so as to produce an acquisition distribution layer for an absorbent article.

Classes IPC  ?

• A61F 13/02 - Emplâtres ou pansements adhésifs
• A61F 13/00 - Bandages ou pansements; Garnitures absorbantes
• D04H 3/03 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de formation des voiles ou couches, p.ex. par la réorientation des fils ou filaments au hasard
• D04H 3/11 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de renforcement ou de consolidation avec liages faits mécaniquement entre fils et filaments par jet de fluide

Abrégé

A method for producing a bale of crimped tow band may include providing a tow band having about 10 denier per filament or greater and about 20,000 total denier or less, the tow band comprising a plurality of cellulose acetate filaments; crimping the tow band thereby yielding a crimped tow band; conditioning the crimped tow band; and baling the crimped tow band to form a bale.

Classes IPC  ?

• D04H 3/013 - Famille des celluloses régénérées
• D01F 2/28 - Filaments, ou similaires, artificiels, à un seul composant, formés de cellulose ou de dérivés de la cellulose; Leur fabrication à partir de dérivés de la cellulose à partir d'esters ou d'éthers organiques de cellulose, p.ex. à partir d'acétate de cellulose
• D04H 3/12 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de renforcement ou de consolidation avec filaments ou fils retenus ensemble par des agents de liage chimiques ou thermo-activables, p.ex. adhésifs, appliqués ou incorporés sous une forme liquide ou solide
• D04H 3/077 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de formation des voiles ou couches, p.ex. par la réorientation des fils ou filaments autrement que dans un plan, p.ex. de manière tubulaire en forme de bâton, tige ou cylindre solide
• D02G 1/12 - Production de fibres, filaments, filés ou fils, crêpés ou ondulés ou leur donnant de telles caractéristiques latentes avec utilisation de boîtes à bourrage
• A24D 3/02 - Fabrication de filtres à fumée de tabac

Abrégé

High-throughput production methods for manufacturing porous masses suitable for use in conjunction with smoking devices may include continuously combining a matrix material and a paper wrapper to form a desired cross-sectional shape where the matrix material is confined by the paper wrapper, the matrix material comprising a binder particle and an active particle; heating at least a portion of the matrix material so as to bind the matrix material at a plurality of contact points, thereby forming a porous mass length, wherein heating involves irradiating with microwave radiation at least a portion of the matrix material; cooling the porous mass length; and cutting the porous mass length radially thereby producing a porous mass.

Classes IPC  ?

• A24D 3/02 - Fabrication de filtres à fumée de tabac
• A24D 3/08 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux
• A24C 5/47 - Fixation de filtres ou de bouts aux cigares ou aux cigarettes, p.ex. insertion de filtres dans les cigarettes ou leurs bouts

Abrégé

A method for forming a filter rod may include providing a bale of crimped tow band having about 10 denier per filament or greater and about 20,000 total denier or less, the crimped tow band comprising a plurality of cellulose acetate filaments; and placing the crimped tow band in an apparatus so as to form a filter rod.

Classes IPC  ?

• A24D 3/10 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux de cellulose ou de dérivés de la cellulose
• A24D 3/06 - Emploi de matériaux particuliers pour les filtres à fumée de tabac

Abrégé

Instilling an acidic catalyst to a reaction mixture can be beneficial during the acylation of cellulose. Methods described herein can comprise preparing a reaction mixture comprising an acylating agent and cellulose, instilling a catalyst comprising an acid to the reaction mixture, and reacting the cellulose with the acylating agent in the presence of the catalyst, thereby forming an acylated cellulose.

Classes IPC  ?

• C08B 3/06 - Acétate de cellulose
• C08B 1/00 - Traitement préparatoire de la cellulose pour l'obtention de dérivés cellulosiques

Abrégé

Instilling an acidic catalyst to a reaction mixture can be beneficial during the acylation of cellulose. Methods described herein can comprise preparing a reaction mixture comprising an acylating agent and cellulose, instilling a catalyst comprising an acid to the reaction mixture at an overall catalyst loading level of about 1% or less by weight of the cellulose, and reacting the cellulose with the acylating agent in the presence of the catalyst, thereby forming an acylated cellulose.

Classes IPC  ?

• C08B 3/06 - Acétate de cellulose
• C08B 1/00 - Traitement préparatoire de la cellulose pour l'obtention de dérivés cellulosiques

Abrégé

Instilling an acidic catalyst to a reaction mixture can be beneficial during the acylation of cellulose. Methods described herein can comprise preparing a reaction mixture comprising an acylating agent and cellulose, instilling a catalyst comprising an acid to the reaction mixture at an overall catalyst loading level of about 10% to about 20% by weight of the cellulose, and reacting the cellulose with the acylating agent in the presence of the catalyst, thereby forming an acylated cellulose.

Classes IPC  ?

• C08B 3/06 - Acétate de cellulose
• C08B 1/00 - Traitement préparatoire de la cellulose pour l'obtention de dérivés cellulosiques

Abrégé

Disclosed are filters, smoking devices, related articles and apparatus, and related methods. The filters include porous masses that have an active particle and a binder particle, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.

Classes IPC  ?

• A24D 3/06 - Emploi de matériaux particuliers pour les filtres à fumée de tabac

Abrégé

A system for producing porous masses may include a mold cavity disposed along the material path, at least one hopper before at least a portion of the mold cavity for feeding a matrix material to the material path, a heat source in thermal communication with at least a first portion of the material path, and a cutter disposed along the material path after the first portion of the material path.

Classes IPC  ?

• A24D 3/02 - Fabrication de filtres à fumée de tabac
• A24D 3/06 - Emploi de matériaux particuliers pour les filtres à fumée de tabac

Abrégé

Disclosed are filters, smoking devices, related articles and apparatus, and related methods. The filters have porous masses, the porous masses having an active particle and a binder particle, wherein the active particle includes an element selected from the group consisting of: a nano-scaled carbon particle, a carbon nanotube having at least one wall, a carbon nanohoro, a bamboo-like carbon nanostructure, a fullerene, a fullerene aggregate, graphene, a few layer graphene, oxidized graphene, a iron oxide nanoparticle, a nanoparticle, a metal nanoparticle, a gold nanoparticle, a silver nanoparticle, a metal oxide nanoparticle, an alumina nanoparticle, a magnetic nanoparticle, a paramagnetic nanoparticle, a superparamagnetic nanoparticle, a gadolinium oxide nanoparticle, a hematite nanoparticle, a magnetite nanoparticle, a gado-nanotube, an en do fullerene, Gd@C60, a core-shell nanoparticle, an onionated nanoparticle, a nanosheli, an onionated iron oxide nanoparticle, and any combination thereof.

Classes IPC  ?

• A24F 13/22 - Supports pour maintenir des cigares ou des cigarettes en fumant

Abrégé

Disclosed are filters, smoking devices, related articles and apparatus, and related methods. The filters include porous masses that have an active particle and a binder particle, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 rag/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.

Classes IPC  ?

• A24F 13/22 - Supports pour maintenir des cigares ou des cigarettes en fumant

Abrégé

Disclosed are filters, smoking devices, related articles and apparatus, and related methods, The filters include porous masses that have an active particle and a binder particle, and an active particle loading of at least about 1 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.

Classes IPC  ?

• A24D 3/00 - Filtres à fumée de tabac, p.ex. bouts filtrants, garnitures filtrantes; Filtres spécialement adaptés aux dispositifs permettant de fumer artificiellement; Bouts pour cigares ou cigarettes
• A24D 1/04 - Cigares; Cigarettes à bouts ou à bouts filtrants

Abrégé

Disclosed are filters, smoking devices, related articles and apparatus, and related methods, The filters have porous masses having that have an active particle and a binder particle, wherein the porous masses have a void volume of about 40% to about 90%. The binder particle may comprise a thermoplastic material.

Classes IPC  ?

• A24D 3/04 - Filtres à fumée de tabac caractérisés par leur forme ou leur structure

Abrégé

An environmentally degradable cigarette filter includes a filter element of a bloomed cellulose acetate tow and a plug wrap surrounding said filter element. A weak organic acid and a pH adjusted inorganic ester salt are encapsulated in a matrix material which is in contact with the tow. The pH adjusted inorganic ester salt has a pH less than or equal to 8. When the cigarette filter is discarded into the environment, water liberates the weak acid and the ester salt from the matrix material. The weak acid hydrolyzes the ester liberating a strong acid. The strong acid catalyzes the degradation of the cellulose acetate tow. (The weak acid also hydrolyzes the cellulose acetate tow, but after the strong acid is generated, the strong acid becomes the dominant acid catalyst for the cellulose acetate tow degradation).

Classes IPC  ?

• A24D 3/10 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux de cellulose ou de dérivés de la cellulose

Abrégé

A degradable cigarette filter includes a filter element of a bloomed cellulose acetate tow and a plug wrap surrounding the filter element, and a pill dispersed in the tow. The pill includes a material adapted to catalyze hydrolysis of the cellulose acetate tow that is encapsulated with an inner layer of a water soluble or water permeable material and an outer layer of a cellulose acetate having a D. S. in the range of 2.0- 2.6.

Classes IPC  ?

• A24D 3/10 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux de cellulose ou de dérivés de la cellulose
• A24D 3/14 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux additionnels

Abrégé

A tobacco smoking device comprises a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles. The active particles comprises about 1-99 % weight of the porous mass, and the binder particles comprises about 1-99 % weight of said porous mass. The active particles and said binder particles are bound together at randomly distributed points throughout the porous mass. The active particles have a greater particle size than the binder particles.

Classes IPC  ?

• A24F 47/00 - Articles pour fumeurs non prévus ailleurs

Abrégé

A process for recycling cellulose acetate ester waste comprising the steps of : providing a reactor, adding cellulose acetate ester waste and a hydrolyzing agent to the reactor to create an agent/waste mixture followed by hydrolyzing the cellulose acetate ester waste by agitating and heating the agent/waste mixture for a period of time to create a hydrolyzed mixture. The hydrolyzing agent is then distilled and/or separated from the hydrolyzed mixture followed by separating and removing solid material from the hydrolyzed mixture to create a water soluble product stream which includes monosaccharides, polysaccharides, partially hydrolyzed cellulose, acetic acid, or combinations thereof. The water soluble product stream is then collected.

Classes IPC  ?

• C08B 3/24 - Hydrolyse ou mûrissement

Abrégé

A degradable cigarette filter includes a filter element of a bloomed cellulose acetate tow, a plug wrap surrounding the filter element, and either a coating or a pill in contact with the tow. The coating and/or pill may be composed of a material adapted to catalyze hydrolysis of the cellulose acetate tow and a water-soluble matrix material. The material may be an acid, an acid salt, a base, and/or a bacterium adapted to generate an acid. The coating may be applied to the tow, the plug wrap, or both. The pill may be placed in the filter element. When water contacts the water-soluble matrix material, the material adapted to catalyze hydrolysis is released and catalyzes the hydrolysis, and subsequent degradation, of the cellulose acetate tow. The foregoing is also applicable to articles made of cellulose esters.

Classes IPC  ?

• A24D 3/10 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux de cellulose ou de dérivés de la cellulose

Abrégé

A nonwoven material has a plurality of randomly oriented and bulked crimped filaments, a plurality of point bonds interconnecting said crimped filaments into a fixed, 3- dimensional structure, and either a surface portion of said fixed, 3 -dimensional structure having a greater density than an inner portion of said 3 -dimensional structure or an external surface of said fixed, 3 -dimensional structure being substantially free of any protruding filaments. The nonwoven material is made by: bulking a filament tow, fixing the bulked tow into a 3 -dimensional structure, and calendering the 3- dimensional structure.

Classes IPC  ?

• D04H 1/00 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes

Abrégé

A method for baling a cellulose acetate tow is disclosed. The method includes the following steps: laying the cellulose acetate tow into a can; pressing the laid tow with a press having a first platen and a second platen, each platen facing each other, each platen having a contoured face, the contoured face having at least three sloped portions, a first sloped portion located adjacent a peripheral edge of the platen having a first slope, a second sloped portion located adjacent the first sloped portion having a second slope, and a third sloped portion located adjacent the second sloped portion having a third slope, wherein the first slope is greater that the second slope, and the second slope is greater that the third slope; and packaging and securing the pressed tow; whereby the pressed tow having substantially flat surfaces.

Classes IPC  ?

• B65D 71/00 - Paquets d'objets maintenus ensemble par des éléments d'emballage pour la commodité du stockage ou du transport, p.ex. paquets compartimentés pour le transport à la main de plusieurs réceptacles tels que des boîtes de bière ou des bouteilles de boisso; Balles de matériaux

Abrégé

A wound care product is a nonwoven fabric made of filaments bulked from a tow and fixed into a 3-dimensional structure.

Classes IPC  ?

• A61F 13/00 - Bandages ou pansements; Garnitures absorbantes

Abrégé

A method of making cellulose ester polymer comprises the steps of: pre-treating a cellulose source; esterifying the pretreated cellulose source to form a cellulose ester; and optionally hydrolyzing the cellulose ester. The pretreatment step further comprises: mixing, in a first stage, the cellulose source with a first solution of a weak acid and water, whereby the cellulose source being suspended in the first solution; de-liquefying the first stage suspension; mixing, in a second stage, the de-liquefied mass with a second solution of weak acid and water, whereby the mass being suspended in the second solution; and de-liquefying the second stage suspension.

Classes IPC  ?

• C08B 3/00 - Préparation d'esters cellulosiques d'acides organiques

Abrégé

A process for the manufacture of cellulose esters is described. The process includes the steps of : pre- treating pulp for the removal of impurities with either caustic or acid or both, esterifying the pre- treated pulp, and recycling the caustic or acid or both from the pre-treating step.

Classes IPC  ?

• D06M 13/00 - Traitement des fibres, fils, filés, tissus ou articles fibreux faits de ces matières, avec des composés organiques non macromoléculaires; Un tel traitement combiné avec un traitement mécanique

Abrégé

The instant invention is a stuffer box crimper and a method for crimping. The stuffer box crimper according to instant invention includes a pair of nip rollers, a pair of doctor blades, and a stuffer box. The pair of doctor blades is adjacent to an exit end of the pair of nip rollers. The stuffer box includes a stuffer box channel adjacent to the pair of doctor blades, and the stuffer box channel includes a surface consisting of a hard material having a hardness of at least 60 Rc. The method of crimping according to instant invention includes the steps of (1) providing a stuffer box crimper including a stuffer box having a stuffer box channel including a surface consisting of a hard material having a hardness of at least 60 Rc; and (2) crimping via the stuffer box crimper.

Classes IPC  ?

• D02G 1/12 - Production de fibres, filaments, filés ou fils, crêpés ou ondulés ou leur donnant de telles caractéristiques latentes avec utilisation de boîtes à bourrage

Abrégé

A process for making cellulose acetate or cellulose esters which pretreats a wood pulp prior to acetylation or esterification is disclosed. The pretreatment of the wood pulp includes the mixture of wood pulp into a caustic solution to form a suspension of wood pulp. The suspension of wood pulp is separated from the caustic solution to form a cake. The cake is washed with an acid to obtain an acid and cellulose cake having a low water content. The acid and cellulose cake is then acetylated or esterifed to form cellulose acetate or other cellulose esters.

Classes IPC  ?

• C08B 3/00 - Préparation d'esters cellulosiques d'acides organiques
• C08B 3/06 - Acétate de cellulose

Abrégé

The instant application relates to a fiber bale and a method for producing the same. The instant fiber bale includes a highly compressed hexahedral fibrous material substantially free of disrupting curvatures on a top side or a bottom side. The highly compressed hexahedral fibrous material has a packing density of at least 300 kg/m3. The method for producing a fiber bale according to instant invention includes the following steps: (1) providing a press for producing a highly compressed hexahedral fibrous material comprising at least one convex bale platen; (2) filling the press- with the fibrous material; (3) pressing the fibrous material via the press; (4) thereby forming the highly compressed hexahedral fibrous material; (5) packaging the highly compressed hexahedral fibrous material with a wrapping material; and (6) securing the wrapping material thereby producing the fiber bale.

Classes IPC  ?

• B65B 1/24 - Réduction du volume du matériau à remplir par compression mécanique
• B65B 13/20 - Dispositifs pour compresser ou tasser les paquets avant ligature