The invention pertains to a separator suitable for use in lithium ion batteries which comprises a core paper comprising 30-70 wt. % aramid shortcut fiber, 10-45 wt. % PET, and 5-40 wt. % of a binder, the core paper having a grammage of 5-30 g/m2 and a thickness of 5-30 micron, wherein at least one side of the core paper is provided with a coating layer, said coating layer comprising refractory particles and a coating binder, wherein the separator has a surface pore size on the side of the paper provided with the coating layer which is such that at least 90 number % of the surface pores has a pore size of at most 0.5 micron.
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
D21H 19/72 - Coated paper characterised by the paper substrate
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
23 - Yarns and threads for textile use
24 - Textiles and textile goods
Goods & Services
Protective clothing, in particular bulletproof and/or
penetration resistant, protective clothing; protective
helmets; gloves for protection, in particular bulletproof
and penetration resistant gloves; all the afore-mentioned
goods including with renewable, EG-recycled, and/or biobased
aramid. Plastic fibers, plastic yarns and cords made of plastic
fibers and plastic yarns, not for textile use; fabrics made
of plastic fibers and plastic yarns, not for textile use;
plastic fibers being reinforcement material for rubber and
rubber goods; semi-processed resins, not for textile use;
materials for packaging not included in other classes,
padding materials, recycled compound plastics for use in
manufacture; synthetic fiber composites, not for textile
use; plastics as semi-finished products; plastic fibers
being reinforcement material for optical fiber cables, cargo
containers, tires, asphalt and cement; plastics in the form
of sheets, film, blocks, rods, tubes, powder, pellets for
use in manufacture; all the afore-mentioned goods including
with renewable, EG-recycled, and/or biobased aramid. Chemical fibers for textile use; fibers being raw synthetic
materials for textile use; ropes and strings; nets; tents
and tarpaulins; sails; raw fibrous textile materials;
plastic fibers for textile use; synthetic fibers; twisted
cords including aramid fibers and twines made of artificial
textile fibres, paper or plastics; all the afore-mentioned
goods including with renewable, EG recycled, and/or biobased
aramid. Synthetic fiber thread and yarn for textile use; yarns and
thread for textile use; all the afore-mentioned goods
including with renewable, EG recycled, and/or biobased
aramid. Textile fabrics, included in this class; woven fabrics,
knitted fabrics, included in this class; laid fabrics,
included in this class; non-wovens; all the afore-mentioned
goods including with renewable, EG-recycled, and/or biobased
aramid.
3.
MODIFIED ARAMID PULP AND FRICTION MATERIAL COMPRISING MODIFIED ARAMID PULP
Instant invention pertains to an aramid pulp comprising polyoxazoline. Also claimed is a method for manufacturing the aramid pulp comprising polyoxazoline comprising: —combining aramid short-cut, partly fibrillated aramid short-cut or aramid pulp with polyoxazoline in an aqueous solution to form a mixture, —subjecting the mixture to a refining step to form an aqueous slurry of the aramid pulp. Further, the invention is directed to a paper comprising the aramid pulp comprising polyoxazoline and a friction material comprising said paper and/or said aramid pulp comprising polyoxazoline.
D21H 17/54 - Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
The invention pertains to a process for purification of an aqueous brine solution comprising an amine comprising: - providing an aqueous brine solution comprising an amine, - contacting the aqueous brine solution with hydrogen chloride to form sodium chloride crystals, - removing the sodium chloride crystals to obtain a hydrochloride solution comprising the amine. The invention also pertains to a process to re-use an amine, such process incorporating the purification process.
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
24 - Textiles and textile goods
23 - Yarns and threads for textile use
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Chemical fibers for textile use; fibers being raw synthetic materials for textile use; ropes and strings; nets; tents and tarpaulins; sails; raw fibrous textile materials; plastic fibers for textile use; synthetic fibers; twisted cords including aramid fibers and twines made of artificial textile fibres, paper or plastics; all the afore-mentioned goods including with renewable, EG recycled, and/or biobased aramid. Textile fabrics, included in this class; woven fabrics, knitted fabrics, included in this class; laid fabrics, included in this class; non-wovens; all the afore-mentioned goods including with renewable, EG-recycled, and/or biobased aramid. Synthetic fiber thread and yarn for textile use; yarns and thread for textile use; all the afore-mentioned goods including with renewable, EG recycled, and/or biobased aramid. Protective clothing, in particular bulletproof and/or penetration resistant, protective clothing; protective helmets; gloves for protection, in particular bulletproof and penetration resistant gloves; all the afore-mentioned goods including with renewable, EG-recycled, and/or biobased aramid. Plastic fibers, plastic yarns and cords made of plastic fibers and plastic yarns, not for textile use; fabrics made of plastic fibers and plastic yarns, not for textile use; plastic fibers being reinforcement material for rubber and rubber goods; semi-processed resins, not for textile use; materials for packaging not included in other classes, padding materials, recycled compound plastics for use in manufacture; synthetic fiber composites, not for textile use; plastics as semi-finished products; plastic fibers being reinforcement material for optical fiber cables, cargo containers, tires, asphalt and cement; plastics in the form of sheets, film, blocks, rods, tubes, powder, pellets for use in manufacture; all the afore-mentioned goods including with renewable, EG-recycled, and/or biobased aramid.
A process to manufacture a solution of aramid includes: i) combining a solvent and a base to result in a solvent-base mixture, ii) adding aramid material to the solvent-base mixture to obtain a composition, and iii) mixing the composition to obtain a solution of aramid, wherein at least 1 Mol of base per liter of solvent is added to obtain the solvent-base mixture. An aramid solution, processes to further process the solution, and a continuous aramid fiber with high elongation.
The invention pertains to a process for manufacturing an aramid solution by combining components comprising a base, a proton donor, aramid and an aprotic solvent, wherein: - the base is dissolved in the proton donor to obtain a base solution, - the aprotic solvent and the aramid are combined to obtain an aramid-solvent mixture, - the base solution and the aramid-solvent mixture are combined to obtain a suspension, and - the suspension is mixed to obtain the aramid solution. Also claimed are a process to manufacture a continuous aramid fiber, a continuous aramid fiber, a process to manufacture aramid nanofiber and a material comprising the aramid nanofiber.
A method for aiding emergency responders in retrieving a path, including receiving motion data from a first motion sensor registering motion of a first emergency responder of at least one emergency responder exploring an emergency scene; compiling track data based on the motion data of the first motion sensor, wherein the track data represents a first track of the first emergency responder through the emergency scene; calculating path data based on the track data, wherein the path data represents a path coinciding with at least a part of the track; and providing the path data to an actuator arranged for guiding an emergency responder of the at least one emergency responder along the path.
G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
G08B 6/00 - Tactile signalling systems, e.g. personal calling systems
2 including at least 20 wt. % of microfilaments and at least 20 wt. % of a non-resinous binder, the microfilaments having an average filament length in the range of 2-25 mm and titer less than 1.3 dtex, the non-resinous binder comprising at least one of fibrid or pulp. The paper shows high strength and other attractive properties.
The invention pertains to a separator suitable for use in lithium ion batteries which comprises a core paper comprising 30-70 wt.% aramid shortcut fiber, 10-45 wt.% PET, and 5-40 wt.% of a binder, the core paper having a grammage of 5-30 g/m2 and a thickness of 5-30 micron, wherein at least one side of the core paper is provided with a coating layer, said coating layer comprising refractory particles and a coating binder, wherein the separator has a surface pore size on the side of the paper provided with the coating layer which is such that at least 90 number% of the surface pores has a pore size of at most 0.5 micron. The separator according to the invention combines low thickness, good dimensional stability, and good thermal stability and thermal conductivity with good barrier properties. Manufacture and use of the separator are also claimed.
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
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
H01M 50/454 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
23 - Yarns and threads for textile use
24 - Textiles and textile goods
25 - Clothing; footwear; headgear
39 - Transport, packaging, storage and travel services
Goods & Services
Chemical substances, chemical materials and chemical
preparations; synthetic resins and synthetic resins,
unprocessed; unprocessed plastics in powder, liquid or paste
form. Plastic sheet materials for use in manufacture; plastic
fibres, other than for textile use; plastic rods and bars;
plastics in the form of sheets, films, blocks, rods and
tubes; semi-processed plastic in sheet form; recycled
compound plastics for use in manufacture; insulating
materials produced from plastics. Chemical fibers for textile use; fibres being raw synthetic
materials for textile use. Yarns for textile use. Textiles; textile piece goods; fabrics being textile piece
goods for use in textiles; woven fabrics; non-woven fabric. Clothing. Transport; packaging and storage of goods.
A continuous process for the recycling of aramid fiber comprising the following steps: combining aramid fibrous material including non-continuous aramid fibers with sulfuric acid to obtain a spin dope comprising aramid, and processing the spin dope including aramid into a continuous aramid fiber. The invention also pertains to a continuous aramid fiber, preferably obtainable by said process, and to a multifilament yarn including the continuous aramid fiber.
D01F 6/90 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
D01F 6/92 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
01 - Chemical and biological materials for industrial, scientific and agricultural use
23 - Yarns and threads for textile use
17 - Rubber and plastic; packing and insulating materials
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
24 - Textiles and textile goods
25 - Clothing; footwear; headgear
39 - Transport, packaging, storage and travel services
Goods & Services
Chemical substances, chemical materials and chemical preparations for use in the manufacturing process for aramid fibers; synthetic resins, unprocessed; unprocessed plastics in powder, liquid or paste form Yarns for textile use Plastic sheet materials for use in manufacture; plastic fibres, other than for textile use; plastic rods and bars; plastics in the form of sheets, films, blocks, rods, papers and tubes for use in manufacturing; semi-processed plastic in sheet form; recycled compound plastics for use in further manufacture; insulating materials produced from plastics Chemical fibers for textile use; fibres being raw synthetic materials for textile use Textile substitute materials made from synthetic materials; textile piece goods for use in the manufacture of clothing, sails, reinforcement materials; fabrics being textile piece goods for use in textiles for use in the manufacture of clothing, sails, reinforcement materials; woven fabrics; non-woven fabric Clothing, namely, pants, jackets, suits, namely, racing suits, vests, gloves, shirts, made in whole or in a substantial part thereof of aramid Packaging and storage of goods
14.
MODIFIED ARAMID PULP AND FRICTION MATERIAL COMPRISING MODIFIED ARAMID PULP
Instant invention pertains to an aramid pulp comprising polyoxazoline. Also claimed is a method for manufacturing the aramid pulp comprising polyoxazoline comprising: - combining aramid short-cut, partly fibrillated aramid short-cut or aramid pulp with polyoxazoline in an aqueous solution to form a mixture, - subjecting the mixture to a refining step to form an aqueous slurry of the aramid pulp. Further, the invention is directed to a paper comprising the aramid pulp comprising polyoxazoline and a friction material comprising said paper and/or said aramid pulp comprising polyoxazoline.
D21H 17/54 - Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
2 including at least 20 wt. % of microfilaments and at least 20 wt. % of a non-resinous binder, the microfilaments having an average filament length in the range of 2-25 mm and titer less than 1.3 dtex, the non-resinous binder comprising at least one of fibrid or pulp. The paper shows high strength and other attractive properties.
Instant application pertains to a process to manufacture a solution of aramid comprising: i) combining a solvent and a base to result in a solvent-base mixture, ii) adding aramid material to the solvent-base mixture to obtain a composition, and iii) mixing the composition to obtain a solution of aramid, wherein at least 1 Mol of base per liter of solvent is added to obtain the solvent-base mixture. The invention also pertains to an aramid solution, to processes to further process the solution and to a continuous aramid fiber with high elongation.
C08L 77/10 - Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids
C08J 3/02 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
C08J 3/09 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
23 - Yarns and threads for textile use
24 - Textiles and textile goods
25 - Clothing; footwear; headgear
39 - Transport, packaging, storage and travel services
Goods & Services
Chemical substances, chemical materials and chemical preparations; Synthetic resins and synthetic resins as raw material; Plastics as raw materials in powder, liquid or paste form. Plastic sheet materials for use in manufacture; Plastic fibres, other than for textile use; Plastic rods and bars; Plastics in the form of sheets, films, blocks, rods and tubes; Semi-processed plastic in sheet form; Recycled compound plastics for use in manufacture; Insulating materials produced from plastics. Chemical fibers for textile use; Fibres being raw synthetic materials for textile use. Yarns for textile use. Textiles; Textile piece goods; Fabrics [piece goods]; Woven fabrics; Non-woven fabric. Clothing. Transport; packaging and storage of goods.
The invention pertains to a textile structure being a laminate and comprising a polymer layer selected from a polymer film and a polymer membrane, a layer of uniaxially oriented material comprising a plurality of strips interconnected by fibrils, and a nonwoven fabric comprising fibers. The invention also pertains to a process to manufacture such textile structure and to articles of clothing, in particular medical protective clothing, comprising said textile structure.
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
A method for aiding emergency responders in retrieving a path, comprising receiving motion data from a first motion sensor registering motion of a first emergency responder of at least one emergency responder exploring an emergency scene; compiling track data based on the motion data of the first motion sensor, wherein the track data represents a first track of the first emergency responder through the emergency scene; calculating path data based on the track data, wherein the path data represents a path coinciding with at least a part of the track; and providing the path data to an actuator arranged for guiding an emergency responder of the at least one emergency responder along the path.
G08B 7/06 - Signalling systems according to more than one of groups Personal calling systems according to more than one of groups using electric transmission
G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
G08B 21/02 - Alarms for ensuring the safety of persons
20.
METHOD AND SYSTEM FOR AIDING EMERGENCY RESPONDERS IN RETRIEVING A PATH
A method for aiding emergency responders in retrieving a path, comprising receiving motion data from a first motion sensor registering motion of a first emergency responder of at least one emergency responder exploring an emergency scene; compiling track data based on the motion data of the first motion sensor, wherein the track data represents a first track of the first emergency responder through the emergency scene; calculating path data based on the track data, wherein the path data represents a path coinciding with at least a part of the track; and providing the path data to an actuator arranged for guiding an emergency responder of the at least one emergency responder along the path.
G08B 7/06 - Signalling systems according to more than one of groups Personal calling systems according to more than one of groups using electric transmission
G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
G08B 21/02 - Alarms for ensuring the safety of persons
G08B 27/00 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
The application pertains to a continuous process for the recycling of aramid fiber comprising the following steps: - combining aramid fibrous material comprising non-continuous aramid fibers with sulfuric acid to obtain a spin dope comprising aramid, and - processing the spin dope comprising aramid into a continuous aramid fiber. The invention also pertains to a continuous aramid fiber, preferably obtainable by said process, and to a multifilament yarn comprising said continuous aramid fiber.
A tire includes a carcass ply, a tread disposed radially outward of a crown region of the carcass ply, and a belt structure having an overall axial width substantially equal to a tread width interposed between the tread and the crown region in circumferential surrounding relation to the carcass ply. The belt structure includes a first belt layer and a second belt layer radially adjacent the first belt layer. The first belt layer includes a first reinforced composite with first reinforcement cords embedded in a first rubber matrix. The first reinforcement cords have a construction of 1100/4 dtex with a twist between 150 TPM and 250 TPM and a dipping tension between 100 mN/tex and 200 mN/tex.
B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
An aramid-based paper comprising at least 90 wt. % of aramid material, the aramid material including at least one of aramid shortcut and aramid fibrid, the paper including at most 40 wt. % aramid pulp, calculated on the total amount of aramid material, wherein the paper includes 0.1-10 wt. % of polyamido-amine epichlorohydrin (PAE). It has been found that the incorporation of 0.1-10 wt. % of polyamido-amine epichlorohydrin (PAE) into an aramid-based paper including at least 90 wt. % of aramid material calculated on the weight of the paper not including the PAE, the aramid material including at least one of aramid shortcut and aramid fibrid, the paper including at most 40 wt. % aramid pulp, leads to a surprising improvement of the z-strength and the tear strength of the paper.
D04H 1/587 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
The instant invention relates to ballistic-resistant articles, and to methods for their preparation, based on sheets of UHMWPE films with discontinuous film splits, which combine flexibility and good ballistic properties, making them suitable for both soft-ballistic and hard-ballistic applications.
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
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 7/09 - Interconnection of layers by mechanical means by stitching, needling or sewing
B32B 7/035 - 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 with respect to the orientation of features using arrangements of stretched films, e.g. of mono-axially stretched films arranged alternately
B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
The present invention pertains to a process for the manufacture of a ballistic resistant article comprising the steps of a) stacking a stretchable lamina of ultra-high molecular weight polyethylene (UHMWPE) and a stretchable continuous film of a polymer as organic matrix material to form a lamina-film stack, the continuous film of a polymer as organic matrix material not being an UHMWPE film, b) elongating the lamina-film stack formed in step a) at a temperature below the melting point of the stretchable UHMWPE lamina, to an elongation ratio of at least 2, thereby providing a UHMWPE film with an organic matrix material in which the UHMWPE film is co-stretched with the film of polymer as organic matrix material, c) aligning a plurality of films provided according to step b) to form a layer of films, d) stacking at least two layers of films formed according to step c) to form a sheet, e) stacking a plurality of sheets formed according to step d) to form a stack of sheets, and consolidating the sheets prior to and/or after stacking according to step e) by applying pressure and optionally heat. The invention also pertains to a ballistic-resistant article that can be obtained by the claimed method.
B32B 3/14 - 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 discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a face layer formed of separate pieces of material
B32B 3/18 - 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 discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an internal layer formed of separate pieces of material
B32B 7/09 - Interconnection of layers by mechanical means by stitching, needling or sewing
B32B 7/035 - 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 with respect to the orientation of features using arrangements of stretched films, e.g. of mono-axially stretched films arranged alternately
An aramid paper suitable for use in electronic applications which has a density of 0.20-0.65 g/cm3 and a grammage of 30-280 g/m2, which paper comprises 10-40 wt. % of aramid shortcut with a linear density of 2.6 dtex or lower and a length of 0.5-25 mm and 10-90 wt. % of aramid fibrid, wherein the aramid shortcut comprises at least 70 wt. % para-aramid shortcut and the aramid fibrid including at least 70 wt. % para-aramid fibrid. It has been found that the use of a paper with the above properties in electronic applications ensures a low CTE in combination with good homogeneity and a good dimensional stability resulting from good resin adhesion and penetration. Use of the aramid paper in a composite sheet including at least one layer of aramid paper and a resin, or in a substrate board for electronic applications.
B32B 15/12 - 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 paper or cardboard
D21H 17/48 - Condensation polymers of aldehydes or ketones with phenols
H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details
The invention pertains to an aramid-based paper comprising at least 90 wt.% of aramid material, the aramid material comprising at least one of aramid shortcut and aramid fibrid, the paper comprising at most 40 wt.% aramid pulp, calculated on the total amount of aramid material, wherein the paper comprises 0.1-10 wt.% of polyamido-amine epichlorohydrin (PAE). It has been found that the incorporation of 0.1-10 wt.% of polyamido-amine epichlorohydrin (PAE) into an aramid-based paper comprising at least 90 wt.% of aramid material calculated on the weight of the paper not including the PAE, the aramid material comprising at least one of aramid shortcut and aramid fibrid, the paper comprising at most 40 wt.% aramid pulp, leads to a surprising improvement of the z-strength and the tear strength of the paper. Further advantages of the present invention and specific embodiments thereof will become clear from the further specification.
The invention pertains to netting suitable for use in aquaculture which has a half mesh size of 5-100 mm measured in accordance to ISO 1107:2017 and which comprises cord having a diameter of 0.5-8 mm, wherein the cord comprises films of ultra-high molecular weight polyethylene, the films having a width of 0.5-10 mm. It has been found that the use of cord based on films of ultra-high molecular weight PE (UHMWPE) results in nets with improved fouling resistance as compared to nets based on conventional ultra-high molecular weight gel-spun monofilament or multifilament yarn. It has also been found that the netting according to the invention is easier to clean than netting based on conventional ultra-high molecular weight gel-spun monofilament or multifilament yarn. Not only is less frequent cleaning required due to less fouling, the cleaning steps themselves can be carried out at lower water pressure in the high-pressure cleaning apparatus. This results in less damage of the nets during cleaning and lower water consumption.
A process for manufacturing a fiber including polyetherketoneketone including the steps of: mixing polyetherketoneketone and sulfuric acid having a concentration of at least 90 wt % to obtain a spin dope and passing the spin dope through a spinneret into a coagulation bath, wherein the polyetherketoneketone is dissolved in the sulfuric acid to a concentration of 12 to 22 wt %. Also disclosed are fibers obtainable by the process and polyetherketoneketone fibers having a sulfur content of 0.001 to 5 wt %, based on the weight of the fiber, in particular such fibers having low or high crystallinity, as well as, hybrid yarns and composite materials.
The invention pertains to a catheter tubular shaft and a catheter comprising said shaft. The catheter tubular comprises an inner liner, a braided reinforcement layer and an outer jacket, wherein the braided reinforcement layer is free of metal and comprises twisted multifilament yarn having a twist of 50 to 400 twist per meter (tpm), wherein the multifilament yarn is made from aramid, rigid rod polymer, liquid crystal polymer, polyetheretherketone, aromatic polyester or carbon or combinations thereof.
A61L 29/00 - Materials for catheters or for coating catheters
B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
A friction paper including filler, para-aramid pulp, and resin, characterised in that the para-aramid pulp includes 0.1 to 10 wt. % of polyvinyl pyrrolidone (PVP), the paper having a grammage in the range of 100 to 800 g/m2. It has been found that the use of a PVP-containing para-aramid pulp leads to improved friction performance as compared to the use of para-aramid pulp not containing PVP. Effects obtained include improved friction properties, improved strength properties, and improved filler retention.
A process for manufacturing an aramid pulp including polyvinyl pyrrolidone (PVP), the method including the steps of: combining para-aramid short-cut with PVP in an aqueous solution to form a mixture, subjecting the mixture to a refining step to form a para-aramid pulp including PVP. It has been found that the process makes it possible to obtain a PVP pulp with improved dewatering properties and energy consumption in combination with a high PVP retention.
C08L 77/10 - Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids
D01F 6/90 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
A tactile assembly for a vehicle seat or for a cover placeable on a vehicle seat including at least one tactile actuator, at least two support layers and a matrix layer including at least one cavity, wherein the tactile actuator is arranged on a first support layer and the first support layer is arranged to extend into the cavity without being in contact with the bottom of the cavity and the actuator is arranged on the first support layer in the cavity such that it makes substantially no contact with the side walls or bottom of the cavity, and the opening of the cavity is covered by a second support layer, and to a tactile system and vehicle seats including the tactile assembly or the tactile system.
A process and a splitter for splitting a tape of a uniaxially oriented material. The tape is passed in a process direction over a splitting profile having a row of parallel teeth with a cutting edge extending in the process direction. The tape is split to form a tape comprising a plurality of parallel strips interconnected by fibrils. The split tape can for example be used for the production of high tensile ropes.
A polyarylene fiber including 0.1-15% based on the weight of the fiber of an aromatic compound or a combination of aromatic compounds wherein each aromatic compound comprises an aromatic core and at least one of the substituents A or B, where A is represented by formula 1
and B is represented by formula 2
Also, a spin dope and a process for manufacturing a polyarylene fiber.
The invention pertains to an aramid paper suitable for use in electronic applications which has a density of 0.20-0.65 g/cm3 and a grammage of 30-280 g/m2, which paper comprises 10-40 wt.% of aramid shortcut with a linear density of 2.6 dtex or lower and a length of 0.5-25 mm and 10-90 wt.% of aramid fibrid, wherein the aramid shortcut comprises at least 70 wt.% para- aramid shortcut and the aramid fibrid comprises at least 70 wt.% para-aramid fibrid. It has been found that the use of a paper with the above properties in electronic applications ensures a low CTE in combination with good homogeneity and a good dimensional stability resulting from good resin adhesion and penetration. The invention also pertains to the use of the aramid paper in a composite sheet comprising at least one layer of aramid paper and a resin, or in a substrate board for electronic applications, e.g., in a printed circuit board, or in a backing for a solar cell.
D01F 6/60 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyamides
H01B 3/52 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials woodInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials paperInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials pressboard
The present invention is directed to a process for manufacturing a fiber comprising polyetherketoneketone comprising the steps of: mixing polyetherketoneketone and sulfuric acid having a concentration of at least 90 wt% to obtain a spin dope and passing the spin dope through a spinneret into a coagulation bath, wherein the polyetherketoneketone is dissolved in the sulfuric acid to a concentration of 12 to 22 wt%. The invention further pertains to fibers obtainable by said process and to polyetherketoneketone fibers having a sulfur content of 0.001 to 5 wt%, based on the weight of the fiber, in particular to such fibers having low or high crystallinity. The invention also pertains to hybrid yarns and composite materials.
A cord including multifilament para-aramid yarn comprising filaments, wherein the filaments have a non-round cross section having a smaller and a larger dimension, where the cross-sectional aspect ratio between the larger and the smaller dimension is 1.5-10 and the smaller dimension of the cross section has a maximum of 50 μm and wherein the para-aramid has at least 90% para bonds between the aromatic moieties. The cords have excellent fatigue properties.
The invention pertains to a friction paper comprising filler, para-aramid pulp, and resin, characterised in that the para-aramid pulp comprises 0.1 to 10 wt.% of polyvinyl pyrrolidone (PVP), the paper having a grammage in the range of 100 to 800 g/m2. It has been found that the use of a PVP-containing para-aramid pulp leads to improved friction performance as compared to the use of para-aramid pulp not containing PVP. Effects obtained include improved friction properties, improved strength properties, and improved filler retention.
The invention pertains to a process for manufacturing an aramid pulp comprising polyvinyl pyrrolidone (PVP), the method comprising the steps of - combining para-aramid short-cut with PVP in an aqueous solution to form a mixture, - subjecting the mixture to a refining step to form a para-aramid pulp comprising PVP. It has been found that the process according to the invention makes it possible to obtain a PVP pulp with improved dewatering properties and energy consumption in combination with a high PVP retention.
The invention pertains to a tactile assembly for a vehicle seat or for a cover placeable on a vehicle seat comprising at least one tactile actuator, at least two support layers and a matrix layer comprising at least one cavity, wherein the tactile actuator is arranged on a first support layer and the first support layer is arranged to extend into the cavity without being in contact with the bottom of the cavity and the actuator is arranged on the first support layer in the cavity such that it makes substantially no contact with the side walls or bottom of the cavity, and the opening of the cavity is covered by a second support layer, and to a tactile system and vehicle seats comprising the tactile assembly or the tactile system.
A process and a splitter for splitting a tape of a uniaxially oriented material. The tape is passed in a process direction over a splitting profile having a row of parallel teeth with a cutting edge extending in the process direction. The tape is split to form a tape comprising a plurality of parallel strips interconnected by fibrils. The split tape can for example be used for the production of high tensile ropes.
A process and a splitter for splitting a tape of a uniaxially oriented material. The tape is passed in a process direction over a splitting profile having a row of parallel teeth with a cutting edge extending in the process direction. The tape is split to form a tape comprising a plurality of parallel strips interconnected by fibrils. The split tape can for example be used for the production of high tensile ropes.
A polyarylene fiber comprising 0.1 -15% based on the weight of the fiber of an aromatic compound or a combination of aromatic compounds wherein each aromatic compound comprises an aromatic core and at least one of the substituents A or B, where A is represented by formula 1 and B is represented by formula 2. The invention also pertains to a spin dope and a process for manufacturing a polyarylene fiber.
The invention pertains to a cord comprising multifilament para-aramid yarn comprising filaments, wherein the filaments have a non-round cross section having a smaller and a larger dimension, where the cross-sectional aspect ratio between the larger and the smaller dimension is 1.5-10 and the smaller dimension of the cross section has a maximum of 50 µm and wherein the para-aramid has at least 90% para bonds between the aromatic moieties. The cords have excellent fatigue properties.
a cross-section extending from the first surface to the second surface, and includes a network of fibers having a strength of at least 800 mN/tex (1100 MPa), and the fibers in each layer A and B are impregnated with a matrix material. The matrix material is distributed along the cross-section of each layer in a concentration gradient in which the concentration starts with a maximum value on the first surface, decreases along the cross-section and reaches a minimum value on the second surface. The matrix material includes a mixture of a polychloroprene, and a random copolymer of vinyl chloride and an acrylic ester.
F41H 5/04 - Plate construction composed of more than one layer
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 7/08 - Interconnection of layers by mechanical means
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
The disclosure pertains to pipe-like hollow articles made of ultra-high molecular weight polyethylene (UHMWPE) tapes and a thermoplastic and/or thermoplastic elastomer, whereby in the article, the tapes are wound to create the article, whereby the tapes have a tensile strength of greater than 1.5 GPa according to ASTM D882-00, a modulus of greater than 100 GPa according to ASTM D882-00, and a 200/110 uniplanar orientation parameter of at least 3, whereby the main extension direction of at least one tape in the article is in an angle of 20 to 100° with regard to the main extension direction of the article. Further aspects pertain to two processes for manufacturing such an article.
A paper suitable for use as separator in an electrochemical cell, including at least 60 wt. % of an aramid fibril and at least 1 wt. % of an aramid fiber. The paper has a grammage of 5 to 100 g/m2, and the aramid fibril has a Canadian Standard Freeness (CSF) in a wet phase of less than 300 ml and a specific surface area (SSA) after drying of less than 3 m2/g. It has been found that a paper with this composition combines good electrolyte absorption and ion permeability with high stability during use, leading to a long lifetime for the electrochemical cell.
H01M 2/14 - Separators; Membranes; Diaphragms; Spacing elements
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01B 3/52 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials woodInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials paperInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials pressboard
2. The sheet material is soft, pliable, and light weight. It can be applied as backing onto upholstery material without detrimentally affecting the properties thereof. At the same time, the sheet material has very good fire-retardant properties.
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
A47C 31/00 - Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
B32B 37/16 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
An asymmetric crumb is described that includes 20 to 100 wt % of a para phenylene terephthalamide pulp. Also described are a process for manufacturing the crumb and a material including the crumb.
D21H 17/67 - Water-insoluble compounds, e.g. fillers or pigments
D21H 15/02 - Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
D21H 17/68 - Water-insoluble compounds, e.g. fillers or pigments siliceous, e.g. clays
D01F 6/60 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyamides
52.
Ballistic resistant article, semi-finished product for and method of making a shell for a ballistic resistant article
Described is a ballistic resistant article, such as a helmet, having a double curved shell in turn has a stack of layers of an oriented anti-ballistic material, the layers having one or more plies and having a plurality of cuts, the ends of which define a central polygon and lobes extending from the polygon. The stack has at least 10 rotationally staggered layers and, for most successive layers, the orientation of the material in the or at least one of the plies is rotationally staggered relative to the orientation of the material in the or at least one of the plies of a successive layer over an angle of 90°±30°.
A method for stranding aramid yarn around an endless core includes a stranding step that involves a stranding apparatus having at least one yarn bobbin. The bobbin revolves around its own axis and the bobbin revolves around the core, wherein the yarn unwinds from the bobbin and winds around the core. The yarn is a continuous aramid yarn provided with 0.05 to 0.95 wt %, based on the weight of the aramid, of a finish including an organophosphorus compound. The organophosphorus compound is a compound of the formula X1X2X3P═O. X1, X2, and X3 are independently selected from Y1-, Y1-O—, and M-O. Y1 is a branched or straight-chain C1-C20 alkyl, aryl or alkenyl. M is selected from Li, Na, K, or ammonium. At least one of X1, X2, or X3 is selected from Y1- or Y1-O—.
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
D06M 13/282 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
D07B 3/06 - General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable and are spaced radially from the axis of the machine
D07B 1/14 - Ropes or cables with incorporated auxiliary elements, e.g. for making, extending throughout the length of the rope or cable
D02G 3/04 - Blended or other yarns or threads containing components made from different materials
A ballistic resistant article is provided along with a process to manufacture the article. The ballistic resistant articles includes at least one consolidated composite, wherein the at least one consolidated composite includes at least two layers, each layer includes a network of fibers, the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07, the fibers in each layer are impregnated with a matrix material, and each consolidated composite has a front surface and a rear surface. In the ballistic article, at least the front surface of each consolidated composite is powder coated with partly molten and solidified powder particles to form a powder coated surface.
F41H 5/04 - Plate construction composed of more than one layer
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
An electrical insulating paper having 40-80 wt % of aramid fibrid, 10-50 wt % of aramid pulp, and 10-50 wt % of aramid short-cut. The aramid pulp is para-aramid pulp with a length of 0.5-6 mm and has a Schopper Riegler value of 15-85; the aramid fibrid is para-aramid fibrid; and the aramid short-cut is para-aramid short-cut. The paper shows a high dielectric strength and tensile index. A method for manufacturing the paper and an insulated conductor that includes the paper.
H01B 3/52 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials woodInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials paperInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials pressboard
A fluid jet is directed onto a first yarn at least at sonic speed to entangle the first yarn, which is aligned substantially parallel to a main yarn, into the main yarn enabling that yarns having a high yarn count and/or wet yarns can be entangled.
D02J 1/08 - Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
D02G 1/16 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
D02G 1/20 - Combinations of two or more of the above-mentioned operations or devicesAfter-treatments for fixing crimp or curl
D01H 4/04 - Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from sliversPiecing arrangements thereforCovering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
D02G 3/22 - Yarns or threads characterised by constructional features
The invention pertains to a ballistic-resistant moulded article comprising a compressed stack of sheets comprising reinforcing tapes having a tensile strength of at least 1.0 GPa, a tensile modulus of at least 40 GPa, and a tensile energy-to-break of at least 15 J/g, the direction of the tapes within the compressed stack being not unidirectional, wherein the stack comprises a first layer comprising sheets comprising reinforcing tapes and a high-density polyethylene (HDPE) as matrix material and a fur- ther layer comprising sheets comprising reinforcing tapes and a thermoplastic elastomer as matrix material, wherein the further layer comprises 0.2-8 wt.% matrix material. It has been found that the combination of a layer comprising HDPE as matrix with a layer comprising a thermoplastic elastomer as matrix results in an article which combines high impact re- sistance with improved constructional integrity of the article and reduced dynamic and static back face deformation upon im- pact.
The invention pertains to a ballistic-resistant moulded article comprising a compressed stack of sheets comprising reinforcing tapes having a tensile strength of at least 1.0 GPa, a tensile modulus of at least 40 GPa, and a tensile energy-to-break of at least 15 J/g, the direction of the tapes within the compressed stack being not unidirectional, wherein the stack comprises a first layer comprising sheets comprising reinforcing tapes and a high-density polyethylene (HDPE) as matrix material and a fur- ther layer comprising sheets comprising reinforcing tapes and a thermoplastic elastomer as matrix material, wherein the further layer comprises 0.2-8 wt.% matrix material. It has been found that the combination of a layer comprising HDPE as matrix with a layer comprising a thermoplastic elastomer as matrix results in an article which combines high impact re- sistance with improved constructional integrity of the article and reduced dynamic and static back face deformation upon im- pact.
Methods for non-destructive testing of synthetic ropes is described, where the rope in use is subjected to X-ray, terahertz, permanent magnetic field or electromagnetic analysis to determine a pattern, the results of the analysis are compared with a standard pattern determined by the analysis, and the results of the comparison are used in determining whether the rope is fit for use; where the rope comprises at least two types of fibers, the first fiber type has a density which differs from the density of the second fiber type and the second fiber type is of the same polymer material as the first fiber type, but provided with a high-density or low-density material. Ropes suitable for use in this method are also described.
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
D07B 1/00 - Constructional features of ropes or cables
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01N 21/956 - Inspecting patterns on the surface of objects
G01N 23/02 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material
G01N 27/90 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
60.
BALLISTIC RESISTANT ARTICLE WITH NON-UNIFORMLY DISTRIBUTED MATRIX MATERIAL AND METHOD TO MANUFACTURE SAID ARTICLE
A ballistic resistant article and a method of its manufacture are provided. The article comprises at least one consolidated composite, wherein the at least one consolidated composite comprises a layer A and a layer B bonded to one another, each layer A and B exhibits a first surface, a second surface opposite to the first surface, and a cross-section extending from the first surface to the second surface, each layer A and each layer B comprises a network of fibers having a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07, and the fibers in each layer A and B are impregnated with a matrix material, characterized in that the matrix material is distributed along the cross-section of each layer in the shape of a concentration gradient, wherein the concentration starts with a maximum value on the first surface, so that the first surface is rich in matrix material, decreases along the cross-section and reaches a minimum value on the second surface, so that the second surface is poor in matrix material, and the matrix material comprises a mixture of 75 to 95 wt.% of a polychloroprene, and 5 to 25 wt.% of a random copolymer of vinyl chloride and an acrylic ester based on a weight of the mixture.
A ballistic resistant article and a method of its manufacture are provided. The article comprises at least one consolidated composite, wherein the at least one consolidated composite comprises a layer A and a layer B bonded to one another, each layer A and B exhibits a first surface, a second surface opposite to the first surface, and a cross-section extending from the first surface to the second surface, each layer A and each layer B comprises a network of fibers having a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07, and the fibers in each layer A and B are impregnated with a matrix material, characterized in that the matrix material is distributed along the cross-section of each layer in the shape of a concentration gradient, wherein the concentration starts with a maximum value on the first surface, so that the first surface is rich in matrix material, decreases along the cross-section and reaches a minimum value on the second surface, so that the second surface is poor in matrix material, and the matrix material comprises a mixture of 75 to 95 wt.% of a polychloroprene, and 5 to 25 wt.% of a random copolymer of vinyl chloride and an acrylic ester based on a weight of the mixture.
Linear tension member comprising multiple fibers and at least 0.1 wt% of solid hydrophobic organic nanoparticles with a mean diameter of 10-300 nm and a standard deviation σ of at least 10% of the mean value, which linear tension member has a linear mass density of at least 10.000 dtex and comprises at least 80 wt% of fibers having a mass density higher than 1 g/cm3. The invention also pertains to the use of such particles for making a linear tension member buoyant and to a process to manufacture a floating linear tension member.
The invention pertains to a paper suitable for use as separator in an electrochemical cell, which comprises at least 60 wt.% of aramid fibril and at least 1 wt.% of aramid fiber, the paper having a grammage of 5 to 100 g/m2, and the aramid fibril having a Canadian Standard Freeness (CSF) in the wet phase of less than 300 ml and a specific surface area (SSA) after drying of less than 3 m2/g. It has been found that a paper with this composition combines a good electrolyte absorption and ion permeability with a high stability during use, leading to a long lifetime for the electrochemical cell. The invention also pertains to the use of the paper as separator in an electrochemical cell, and to an electrochemical cell containing the paper as separator.
H01B 3/52 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials woodInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials paperInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials pressboard
The invention pertains pipe-like hollow article (1) made of ultrahigh molecular weight polyethylene (UHMWPE) tapes (2) and a thermoplastic and/or thermoplastic elastomer, whereby in the article the tapes are wound to create the article, whereby the tapes have a tensile strength of greater than 1.5 GPa according to ASTM D882-00 and an modulus of greater than 100 GPa according to ASTM D822-00 and a 200/110 uniplanar orientation parameter of at least 3, whereby the main extension direction (8) of at least one tape in the article is in an angle (5) of 20° to 100° with regard to the main extension direction of the article. Further aspects of the invention pertain to two processes for manufacturing such an article.
The invention pertains to a sheet material characterized in that it is a non-woven sheet material having an areal weight of 10-70 g/m2, which comprises 30-70 wt.% of aramid pulp, 30-70 wt.% of a fire-retardant short fiber material selected from para-aramid, glass fibers, carbon fibers, and PEEK (polyether etherketone), and 0.5-15 wt.% of a polymer binder. It has been found that the sheet material according to the invention is soft, pliable, and light weight. It can be applied as backing onto upholstery material without detrimentally affecting the properties thereof. At the same time, the sheet material according to the invention has very good fire-retardant properties. The aramid pulp preferably is PPTA pulp. The fire-retardant short fiber material preferably selected from para-aramid fibers and glass fibers.
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
The invention pertains to a crumb comprising 20 to 100 wt% of pulp, wherein the pulp consists essentially of para phenylene terephthalamide only and wherein the crumb is asymmetric. The invention pertains also to manufacturing process for such crumbs. The crumbs according this invention are useable for friction materials, gasket materials and friction paper.
D21H 15/02 - Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
A ballistic resistant article is provided and a process to manufacture said article. The ballistic resistant articles comprises at least one consolidated composite, wherein the at least one consolidated composite comprises at least two layers, each layer comprises a network of fibers, the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07, the fibers in each layer are impregnated with a matrix material, and each consolidated composite has a front surface and a rear surface. In said ballistic article at least the front surface of each consolidated composite is powder coated with partly molten and solidified powder particles to form a powder coated surface, and the partly molten and solidified powder particles form an island-in-the-sea coating pattern on the powder coated surface.
A spinneret is used to reduce filament breakage during spinning of multifilament yarn being stretched at a high stretch ratio. The spinneret has a first group of spinning holes with capillaries and a second group of spinning holes with capillaries. The capillaries of the second group of spinning holes have a lower length to diameter (L/D) ratio than the capillaries of the first group of spinning holes. All of the capillaries have the same diameter, which is 100 μm or less.
A ballistic resistant article is provided and a process to manufacture said article. The ballistic resistant articles comprises at least one consolidated composite, wherein the at least one consolidated composite comprises at least two layers, each layer comprises a network of fibers, the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07, the fibers in each layer are impregnated with a matrix material, and each consolidated composite has a front surface and a rear surface. In said ballistic article at least the front surface of each consolidated composite is powder coated with partly molten and solidified powder particles to form a powder coated surface, and the partly molten and solidified powder particles form an island-in-the-sea coating pattern on the powder coated surface.
The invention pertains to a method for stranding aramid yarn around an endless core, wherein the core is provided for a stranding step to a stranding apparatus comprising at least one yarn bobbin, wherein during operation the bobbin revolves around its own axis and the bobbin revolves around the core, and unwinding the yarn from the bobbin around the core to provide a core surrounded by the yarn, wherein the yarn is a continuous aramid yarn provided with 0.05 to 0.95 wt%, based on the weight of the aramid, of a finish comprising an organophosphorus compound, wherein the organophosphorus compound is a compound of the formula X1X2X3P=O, wherein X1, X2, and X3 are independently selected from Y1-, Y1-O-, and M-O, wherein Y1 is a branched or straight-chain C1-C20 alkyl, aryl or alkenyl, with M being selected from Li, Na, K, or ammonium, with the proviso that at least one of X1, X2, or X3 is selected from Y1- or Y1-O-, wherein the different types of Y1 may be the same or different. In one embodiment, the continuous aramid yarn is provided with 0.10 to 0.50 wt% of the finish. It has been found that the use of a relatively minor amount of a finish comprising a specific organophosphorus compound results in an improved package stability on a rotating server with a rolling yarn take-off. Consequently, packages of aramid yarns provided with this finish allow for high speed stranding of aramid yarn around an endless core.
D06M 13/282 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
The invention pertains to a method for stranding aramid yarn around an endless core, wherein the core is provided for a stranding step to a stranding apparatus comprising at least one yarn bobbin, wherein during operation the bobbin revolves around its own axis and the bobbin revolves around the core, and unwinding the yarn from the bobbin around the core to provide a core surrounded by the yarn, wherein the yarn is a continuous aramid yarn provided with 0.05 to 0.95 wt%, based on the weight of the aramid, of a finish comprising an organophosphorus compound, wherein the organophosphorus compound is a compound of the formula X1X2X3P=O, wherein X1, X2, and X3 are independently selected from Y1-, Y1-O-, and M-O, wherein Y1 is a branched or straight-chain C1-C20 alkyl, aryl or alkenyl, with M being selected from Li, Na, K, or ammonium, with the proviso that at least one of X1, X2, or X3 is selected from Y1- or Y1-O-, wherein the different types of Y1 may be the same or different. In one embodiment, the continuous aramid yarn is provided with 0.10 to 0.50 wt% of the finish. It has been found that the use of a relatively minor amount of a finish comprising a specific organophosphorus compound results in an improved package stability on a rotating server with a rolling yarn take-off. Consequently, packages of aramid yarns provided with this finish allow for high speed stranding of aramid yarn around an endless core.
D06M 13/282 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
A fiber processing system includes a fiber spreader that has a spreader bar that extends in a lengthwise direction between first and second ends. The spreader bar carries at least one radiused surface between the first and second ends. At least one mechanical vibration device is operable to vibrate the spreader bar. The at least one mechanical vibration device is connected to input mechanical vibration into the spreader bar at a location between the first and second ends. A method for spreading at least one fiber bundle includes moving at least one tensioned fiber bundle over a radiused surface of the spreader bar. During the moving, mechanical vibration is input into the spreader bar at a location between the first and second ends, to transversely spread and flatten the at least one tensioned fiber bundle.
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
D06M 10/04 - Physical treatment combined with treatment with chemical compounds or elements
The present invention pertains to an electrical insulating paper comprising 40-80 wt.% of aramid fibrid, 10-50 wt.% of aramid pulp, and 10-50 wt.% of aramid short-cut, the aramid pulp being para-aramid pulp with a length of 0.5-6 mm and a Schopper Riegler of 15-85. Preferably, the fibrid is para-aramid fibrid and/or the shortcut is para-aramid shortcut. More preferably, the fibrid is para-aramid fibrid, and the shortcut is para-aramid shortcut. It has been found that a paper meeting the above requirements shows an increased value for the product of the dielectric strength (expressed in k V/mm) and the tensile index (expressed in Nm/g), as compared to systems comprising only two of the cited components, or less than 40 wt.% of aramid fibrid. The paper is relatively easy to manufacture, and has good tear strength. The paper is particularly suitable for use in insulated conductors.
H01B 3/52 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials woodInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials paperInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials pressboard
74.
PROCESS FOR THE SYNTHESIS OF DISENTANGLED UHMW-PE USING A CR OR TI CATALYST
The invention pertains to a process for the manufacture of disentangled ultra-high molecular weight polyethylene in the presence of a co-catalyst comprising trialkylaluminum and a catalyst which is a substituted monocyclopentadienyl, monoindenyl, monofluorenyl or heterocyclopentadienyl complex of chromium or titanium in which at least one of the substituents on the cyclopentadienyl ring carries a neutral donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, characterized in that the process comprises the following steps in the given order: i) a solvent and a trialkylaluminum-scavenger and optionally co-catalyst are added to a reaction vessel, ii) ethylene is added to the reaction vessel, iii) a mixture of the catalyst and co-catalyst is added to the reaction vessel. UHMW-PE obtainable by this process is also claimed, as are fibers, films tapes and moldings comprising this material, and their use in penetration-resistant articles, gloves, biaxial films, cables, slings, ropes, nets, pipes and prostheses.
C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
C08F 4/69 - Chromium, molybdenum, tungsten or compounds thereof
C08F 4/6392 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
75.
METHOD FOR NON-DESTRUCTIVE TESTING OF SYNTHETIC ROPES AND ROPE SUITABLE FOR USE THEREIN
Method for non-destructive testing of synthetic ropes wherein the rope in use is subjected to X-ray, terahertz, permanent magnetic field or electromagnetic analysis to determine a pattern, the results of the analysis are compared with a standard pattern determined by the analysis, and the results of the comparison are used in determining whether the rope is fit for use, wherein the rope comprises at least two types of fibers, wherein the first fiber type has a density which differs from the density of the second fiber type and wherein the second fiber type is of the same polymer material as the first fiber type, but provided with a high-density or low-density material. Ropes suitable for use in this method are also claimed.
G01N 37/00 - Details not covered by any other group of this subclass
G01N 21/95 - Investigating the presence of flaws, defects or contamination characterised by the material or shape of the object to be examined
G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or
G01N 27/80 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating mechanical hardness, e.g. by investigating saturation or remanence of ferromagnetic material
76.
METHOD FOR NON-DESTRUCTIVE TESTING OF SYNTHETIC ROPES AND ROPE SUITABLE FOR USE THEREIN
Method for non-destructive testing of synthetic ropes wherein the rope in use is subjected to X-ray, terahertz, permanent magnetic field or electromagnetic analysis to determine a pattern, the results of the analysis are compared with a standard pattern determined by the analysis, and the results of the comparison are used in determining whether the rope is fit for use, wherein the rope comprises at least two types of fibers, wherein the first fiber type has a density which differs from the density of the second fiber type and wherein the second fiber type is of the same polymer material as the first fiber type, but provided with a high-density or low-density material. Ropes suitable for use in this method are also claimed.
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
D07B 1/14 - Ropes or cables with incorporated auxiliary elements, e.g. for making, extending throughout the length of the rope or cable
77.
Antiballistic panel with first and second laminates having fibers of different tensile modulus
An antiballistic panel includes at least a first stack and a second stack. The first stack has a plurality of first laminates made of a first kind of fibers, and the second stack has a plurality of second laminates made of a second kind of fibers. Either the first kind of fibers or the second kind of fibers has a tensile modulus in the range of 40-85 GPa measured according to ASTM D7269. The other of the first kind of fibers or the second kind of fibers has a tensile modulus in the range of 86-140 GPa measured according to ASTM D7269.
A ballistic resistant article is presented comprising a plurality of fibrous layers, each of said layers comprising a network of fibers, wherein the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07 and a matrix material, wherein the matrix material comprises a mixture comprising: at least one styrene butadiene random copolymer resin, and at least one tackifier. Compared with an article of the same construction but with a matrix material without a tackifier the article according to the invention comprises a higher adhesion between the fibrous layers both in the unaged and aged state and a lower water pick up after water soak. The article additionally comprising a plate of metal or ceramic exhibits minimal or even no delamination of the fibrous layers after ballistic attack. In contrast an article of the same construction but with a matrix material without the styrene butadiene random copolymer resin exhibits (very strong) interior delamination of the fibrous layers and the article of the same construction with the styrene butadiene random copolymer resin, but without the tackifier as the matrix material exhibits light delamination.
A ballistic resistant article is presented comprising a plurality of fibrous layers, each of said layers comprising a network of fibers, wherein the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07 and a matrix material, wherein the matrix material comprises a mixture comprising at least one self-crosslinking acrylic resin and/or at least one crosslinkable acrylic resin, and at least one tackifier. Compared with an article of the same construction but with a matrix material without tackifier the article according to the invention comprises a higher adhesion between the fibrous layers both in the unaged and aged state and a lower water pick up after water soak and the article passes the gasoline soak test. The article additionally comprising a plate of metal or ceramic exhibits minimal or even no delamination of the fibrous layers after ballistic attack, whereas an article of the same construction but with a matrix material without tackifier exhibits interior delamination of the fibrous layers.
The invention relates to a method for obtaining high-tenacity aramid yarn, wherein the yarn is made of a copolymer obtained from a mixture of monomers comprising DAPBI, an aromatic para-diamine, and an aromatic para-diacid, wherein the yarn is heated in at least two process steps, characterized in that in a first step the yarn is heated at a temperature of 200 to 360° C. at a tension of at least 0.2 cN/dtex, followed by a second step wherein the yarn is heated at a temperature of 370 to 500° C. at a tension of less than 1 cN/dtex. The invention further pertains to a multifilament aramid yarn spun from a sulfuric acid spin dope and having a tenacity of at least 2500 mN/tex.
D01F 6/00 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof
D02G 3/04 - Blended or other yarns or threads containing components made from different materials
C08G 69/32 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound
D01F 6/80 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from copolycondensation products from copolyamides
2 including at least 20 wt. % of microfilaments and at least 20 wt. % of a non-resinous binder, the microfilaments having an average filament length in the range of 2-25 mm and titer less than 1.3 dtex, the non-resinous binder comprising at least one of fibril or pulp. The paper shows high strength and other attractive properties.
A ballistic article is comprised of high density fibers, where the linear mass density of the fibers is greater than 2000 dtex as measured by ASTM D1907 and the fibers in each layer have a total areal density greater than 100 g/m2. In one example, the ballistic article has two sheets comprising para-aramid fibers in a styrene and isoprene block copolymer matrix material.
Described is a method of increasing the sulfuric acid concentration of a first aqueous sulfuric acid solution with a sulfuric acid concentration of 82-89% to a concentrated sulfuric acid solution with a sulfuric acid concentration of at least 90%, including evaporating water from the first aqueous sulfuric acid solution in an evaporator vessel to the concentrated sulfuric acid solution, pumping around a mixture of the first aqueous sulfuric acid solution, part of the concentrated sulfuric acid solution, a second aqueous sulfuric acid solution, and hydrogen peroxide through an enameled piping system comprising the evaporator vessel and one or more heaters and pumps, wherein the piping system is operating at a temperature of at least 180° C., and the sulfuric acid concentration of the second aqueous sulfuric acid solution is at least 90%.
A fluid jet is directed onto a first yarn at least at sonic speed to entangle the first yarn, which is aligned substantially parallel to a main yarn, into the main yarn enabling that yarns having a high yarn count and/or wet yarns can be entangled.
D01H 4/04 - Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from sliversPiecing arrangements thereforCovering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
D01H 4/00 - Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from sliversPiecing arrangements thereforCovering endless core threads with fibres by open-end spinning techniques
B65H 69/00 - Methods of, or devices for, interconnecting successive lengths of materialKnot-tying devices
D02G 3/22 - Yarns or threads characterised by constructional features
D02G 1/16 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
D02G 1/20 - Combinations of two or more of the above-mentioned operations or devicesAfter-treatments for fixing crimp or curl
85.
BALLISTIC RESISTANT ARTICLE, SEMI-FINISHED PRODUCT FOR AND METHOD OF MAKING A SHELL FOR A BALLISTIC RESISTANT ARTICLE
The invention relates to a ballistic resistant article, such as a helmet (1), comprising a double curved shell (2) in turn comprising a stack (5) of layers (6) of an oriented anti-ballistic material, the layers (6) comprising one or more plies and having a plurality of cuts (7), the ends of which define a central polygon (8) and lobes (10) extending from the polygon (8). The stack (5) comprises at least rotationally staggered layers (6) and, for most successive layers (6), the orientation of the material in the or at least one of the plies is rotationally staggered relative to the orientation of the material in the or at least one of the plies of a successive layer (6) over an angle of 90° ± 30°.
Spun-dyed aramid fibers, wherein spun-dyeing was performed with a completely organic pigment exhibiting the chemical structure of formula (I):
b:
2. The spun-dyed aramid fibers exhibit constant coloristic properties and wash proof properties.
Aramid paper comprising aramid fibrids and/or aramid pulp is subjected to a temperature in the range of 200°C to 450°C for a time period in the range of 10 minutes to 100 hours to increase the tensile strength of the aramid paper by up to 50%.
The invention pertains to a fully aromatic liquid crystalline furandicarboxylic acid- based aromatic polyester obtainable from a mixture of monomers comprising 2,5- furandicarboxylic acid, p-hydroxybenzoic acid, an aromatic diol, and 5-40 mol% of an aromatic monocarboxylic acid selected from vanillic acid, ferulic acid, salicylic acid, and syringic acid, or mixtures thereof. In a preferred embodiment at least 90% of the 2,5-furandicarboxylic acid and aromatic monocarboxylic acid are bio-based monomers.
C08G 63/60 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
89.
Particles comprising composite of para-aramid and additive material
The invention pertains to a method for making a polymer-additive composite particle from a dope by jet spinning the dope to obtain a pulp, fibril or fibrid, wherein the solvent of the dope is selected from N-methyl-2-pyrrolidone, N,N′-dimethylformamide, N,N′-dimethylacetamide, tetramethylurea, and 4 to 75 wt % of a composition consisting of 2 to 95 wt % of a para-aramid polymer and 5-98 wt % of a solid additive material, to a total of 100 wt %, and wherein the aramid polymer is dissolved in the solvent; or coagulating the dope by means of a rotor-stator apparatus in which the polymer solution is applied through the stator on the rotor so that the precipitating polymer-additive composite particle is subjected to shear forces while they are in a plastic deformable stage.
D01F 6/60 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyamides
D01F 6/90 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
D01D 5/40 - Formation of filaments, threads, or the like by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring
D01F 1/02 - Addition of substances to the spinning solution or to the melt
The invention pertains to a textile reinforcement, in particular a knitted, spiraled, stranded, braided, linear or woven textile reinforcement comprising aramid yarn, which yarn is continuous yarn and provided with a finish comprising mono- or dialkyl phosphate ester or a mixture thereof, which finish is free of compounds with alkoxy groups; and wherein the mono- or dialkyl phosphate ester finish has the formula (I): wherein R1 is branched or straight-chain C1-C15 alkyl, R2 is H, Li, Na, K or NH4, or branched or straight-chain C1-C-15 alkyl, and M is Li, Na, K or NH4. The textile reinforcement may be used for making hoses, tubes, (flexible) pipes, optical fiber cables, power cables, fiber-reinforced composites and ballistic resistant articles.
The invention pertains to a textile reinforcement, in particular a knitted, spiraled, stranded, braided, linear or woven textile reinforcement comprising aramid yarn, which yarn is continuous yarn and provided with a finish comprising mono- or dialkyl phosphate ester or a mixture thereof, which finish is free of compounds with alkoxy groups; and wherein the mono- or dialkyl phosphate ester finish has the formula (I): wherein R1 is branched or straight-chain C1-C15 alkyl, R2 is H, Li, Na, K or NH4, or branched or straight-chain C1-C-15 alkyl, and M is Li, Na, K or NH4. The textile reinforcement may be used for making hoses, tubes, (flexible) pipes, optical fiber cables, power cables, fiber-reinforced composites and ballistic resistant articles.
The invention pertains to a ballistic-resistant moulded article comprising a compressed stack of sheets comprising high molecular weight polyethylene tapes, the direction of the polyethylene tapes within the compressed stack being not unidirectionally, wherein at least part of the tapes have a width of at least 2 mm and a thickness to width ratio of at least 10:1 and a density of at most 99% of the theoretical tape density. The moulded article is based on tapes which have a density below the theoretical density of the tapes. The use of low-density tapes is believed to contribute to the ballistic performance of the panel.
A rope comprising polyethylene elongate elements oriented in the length direction of the rope wherein for at least part of the elongate elements the distance of the element to a central longitudinal rope axis varies over the length of the rope, the polyethylene elongate elements comprising tapes of ultra-high molecular weight polyethylene, the tapes having a width to thickness ratio of at least 10 and a polymer solvent content below 0.05 wt.%. The distance of at least part of the elements to the central longitudinal rope axis varies over the length of the rope between a longitudinal line which is at most 30% from the outside of the rope and a longitudinal line which is at most 30% from the central longitudinal axis of the rope. A rope with these properties, shows a high strength-strength ratio, defined as the ratio between the strength under use conditions and the fresh strength of the rope. A strength-strength ratio of at least 50%, preferably at least 70%, in particular at least 80% can be achieved.
To reduce filament breakage during spinning of multifilament yarn being stretched at high stretch ratio a spinneret is used comprising a first group of spinning holes with capillaries and a second group of spinning holes with capillaries, wherein the capillaries of the second group of spinning holes has a lower L/D ratio than the capillaries of the first group of spinning holes, wherein all capillaries have the same diameter, and wherein the diameter of the capillaries is 100 µm or less.
The invention pertains to a method for manufacturing an antistatic aramid material selected from pulp, shortcut, fibrid, and fibril, comprising the steps of providing an aqueous medium comprising said aramid material, polymerizable monomer of a conductive polymer, anionic surfactant in an amount of at least 0.1 mole of anionic surfactant per kg aramid material (dry weight), and dopant in an amount of at least 0.1 mole per mole of monomer, adding an oxidizing agent to the medium to polymerise the monomer to form a polymer, and separating the aramid material provided with a polymer coating from the medium. The invention also pertains to an antistatic aramid material selected from pulp, shortcut, fibril, and fibrid, wherein the pulp, fibrid or fibril has a coating comprising a mixture of a conductive polymer and a dopant, and optionally at least 0.01 wt.% of an anionic surfactant. The antistatic aramid material according to the invention is suitable for use in, e.g., the 1 manufacture of paper, brake pads, and gaskets.
D06M 15/00 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compoundsSuch treatment combined with mechanical treatment
D06M 15/63 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing sulfur in the main chain, e.g. polysulfones
CARBON NANOTUBES FIBER HAVING LOW RESISTIVITY, HIGH MODULUS AND/OR HIGH THERMAL CONDUCTIVITY AND A METHOD OF PREPARING SUCH FIBERS BY SPINNING USING A FIBER SPIN-DOPE
Carbon nanotubes fibers having a resistivity lower than 120 microohms*cm are prepared by a wet spinning process comprising the steps of supplying a spin-dope comprising carbon nanotubes to a spinneret, extruding the spin-dope through at least one spinning hole in the spinneret to form spun carbon nanotubes fibers, coagulating the spun carbon nanotubes fibers in a coagulation medium to form coagulated carbon nanotubes fibers wherein the carbon nanotubes fibers are drawn at a draw ratio higher than 1.0, wherein the carbon nanotubes have a length of at least 0.5 micrometer. Even carbon nanotubes fibers having a resistivity lower than 50 microohms*cm, which is lower than reported for nanotube fibers from any known production process. At the same time, the CNT fibers can have high modulus.
The present invention pertains to a parallel rope comprising elongate bodies wherein the length axis of the elongate bodies is parallel to the length of the rope or wherein the elongate bodies show helix angles smaller than 2°, characterized in that the elongate bodies comprise tapes of ultra-high molecular weight polyethylene, the tapes having a width to thickness ratio of at least 10 and a polymer solvent content below 0.05 wt.%. It has been found that a parallel rope based on the specified polyethylene tapes shows high modulus in combination with low weight, a long life-span, and low creep. If so desired, the rope may be free of non-polyethylene low-molecular weight components, as the tapes do not require the presence of a finish.
D07B 1/04 - Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics with a core of fibres or filaments arranged parallel to the centre line
D07B 1/02 - Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
The invention pertains to a method for dosing a powder into a kneader, whereby the powder is fed via a feeder-mechanism into a feeding hole of the kneader, whereby powder falls from an additional feeding device of the feeder-mechanism into one of at least 4 segments of a rotary valve of the feeder-mechanism or reverse.
D01D 1/09 - Control of pressure, temperature or feeding rate
G01F 11/24 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber rotates or oscillates for fluent solid material
99.
PROCESS FOR COMBINED ROLLING AND STRETCHING OF TAPES
The process according to the invention combines rolling and stretching of a sheet (101) into a tape on a calender. The sheet is rolled into a rolled sheet in the nip between two rolls (111, 112) of the calender and the rolled sheet is stretched immediately thereafter into a tape on the surface of one (111) of the two calender rolls. The speed (V3) of the rolled sheet on the surface of the calender roll (111) is higher than the speed (111) of the calender roll. The position of the start of the neck- down of the rolled sheet and the rate of neck- down can be easily controlled by the proposed process.
B29C 55/06 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
B29C 55/18 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets by squeezing between surfaces, e.g. rollers
The invention pertains to an antiballistic panel. The panel comprises at least a first stack and a second stack, wherein the first stack has a plurality of first laminates made of a first kind of fibers and the second stack has a plurality of second laminates made of a second kind of fibers, wherein the first kind of fibers has a tensile modulus in the range of 40-85 GPa measured according to ASTM D7269 and the second kind of fibers has a tensile modulus in the range of 86-140 GPa measured according to ASTM D7269.
