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6245876 |
Continuous molded article for polyurethaneurea and production method thereof
The present invention relates to a continuous shaped article such as a polyurethaneurea fiber and a polyurethaneurea film having a birefringence index (Δn) of from at least 1.0×10 -4 to 8.0×10...
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6174358 |
Method for producing cellulose particles
A method for producing cellulose particles whereby a cellulose solution is dispersed in a regenerant or nonsolvent and the cellulose is regenerated or precipitated in dispersed form into cellulose...
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5976439 |
Alginate ropes, method of preparation and use
A process for preparing an alginate rope, which process comprises the steps of: (a) extruding an aqueous solution of a water soluble alginate into a coagulation bath; (b) contacting the extruded...
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5906890 |
Polypropylene fiber, a method for manufacture thereof, and a non-woven fabric made of the same
There is disclosed a polypropylene fiber which is suitable for hot rolling and which is used for producing a non-woven fabric having high tenacity and good feel by heat rolling within a wide range...
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5310866 |
Process for stretching a swollen flexible-chain polymer
Process for stretching an article substantially consisting of a flexible-chain polymer, which is swollen in a solvent for that polymer, in which process an article substantially consisting of a...
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5296286 |
Process for preparing subdenier fibers, pulp-like short fibers, fibrids, rovings and mats from isotropic polymer solutions
A process for preparing subdenier fibers and structures thereof from isotropic polymer solutions is disclosed. The process comprises extruding a stream of the polymer solution into a chamber,...
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5276083 |
Continuous polyester filaments available for composing carpets
This invention is directed to continuous polyester filaments in tufted form for composing quality carpets having a pleasing appearance. The carpets are formed by use of continuous polyester...
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5268133 |
Melt spinning of ultra-oriented crystalline filaments
Ultra-oriented, crystalline synthetic filaments with high tenacity are produced by extrusion of a fiber-forming synthetic polymer melt into a liquid isothermal bath maintained at a temperature of...
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5254303 |
Method and device for manufacturing molded bodies
In a method and device for shaping thread-forming materials from a homogeneous isotropic or anisotropic, single or multiphase liquid multicomponent system, the liquid multicomponent system is...
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5171504 |
Process for producing high strength, high modulus thermoplastic fibers
The invention provides improved thermoplastic high strength, highly oriented fibers and a process for producing the fibers by melt spinning a thermoplastic polymer to form a threadline, preferably...
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5064596 |
Process for preparing a slender or thin ceramic green body
A process for preparing a slender or thin ceramic green body, which comprises discharging a raw material slurry comprising a ceramic powder raw material, a binder and a solvent from a discharge...
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5019316 |
Method for producing thermoplastic synthetic yarn
A system for producing a drawn yarn having a durable mechanical and thermal stability in practical use from a fiber-forming polymer by means of a single continuous process is disclosed. A yarn...
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4965033 |
Process for spinning high-strength, high-modulus aromatic polyamides
A process for spinning high-strength high-modulus, aromatic polyamide filaments is disclosed in which an acid solution containing at least 30 g per 100 ml acid of aromatic polyamide having an...
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4963298 |
Process for preparing fiber, rovings and mats from lyotropic liquid crystalline polymers
Process for preparing subdenier fiber and structures thereof from lyotropic liquid crystalline polymers comprising extruding a stream of the polymer into a chamber, introducing a pressurized gas...
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4898704 |
Coagulating process for filaments
Coagulating a warp of filaments from a linear spinneret by delivering a transparent, jetted sheet of coagulating liquid equally and uniformly along each side of the warp.
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4865902 |
Multilayered polyolefin high shrinkage, low-shrink force shrink film
A multi-layered, heat shrinkable film is disclosed which possesses one or two outer layers of a polyolefin and a core layer of material having a melting point below the temperature required to...
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4836507 |
Aramid staple and pulp prepared by spinning
Directly spinning highly oriented staple fibers of para-aramids using a dry-jet wet-spinning process in which the filaments in the gap between the spinneret and the coagulating fluid are attenuated...
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4728473 |
Process for preparation of polyparaphenylene terephthalamide fibers
A process for the preparation of poly-p-phenylene terephthalamide fibers according to the wet spinning method comprising passing an optically anisotropic solution of a poly-p-phenylene...
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4391875 |
Asbestos products of improved physical properties having metal oxides on the surfaces thereof
The abrasion resistance and tensile strength of asbestos is significantly improved by the addition of significant amounts of metal oxides, such as iron oxide, under conditions to provide at least...
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4340559 |
Spinning process
Improved aromatic polyamide fibers from aromatic polyamides whose chain-extending bonds are either coaxial or parallel and oppositely directed are obtained by dry spinneret wet spinning into a...
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4274900 |
Multi-layer polyester/polyolefin shrink film
The multi-layer polyester/polyolefin shrink film of this invention provides a combination of shrink tension, hot seal strength, sealability, and shrink temperature range heretofore unobtainable in...
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4261943 |
Process for surface treating cellulose products
This invention relates to a process for treating the surface of cellulosic shaped products such as fibers, films filaments, yarns and the like, formed from a spinning dope of a solution of...
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4159299 |
Method for the production of rayon
A method and apparatus for the production of rayon and for the continuous processing of filaments is disclosed. Filament threads are formed in a spinning column in which they are completely...
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4154856 |
Method for stretching a coagulable extrudate
Stretched fibers or fibrils from single-cell dopes are prepared by extruding the dope into a moving coagulating bath wherein the fluid motion of the bath causes the extrudate to gradually stretch....
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4115991 |
Asbestos products
Coherent strands are made from a dispersion of asbestos fibres in an aqueous soap solution containing up to 100 percent molar excess of fatty acid, by a process including the steps of forming a...
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4078034 |
Air gage spinning process
The strength of aromatic polyamide filaments spun at high speed downwardly through a non-coagulating fluid into a liquid coagulating bath and subsequently through a spin tube containing the freshly...
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4070431 |
Improved yarn extraction process
The salt content of neutralized aromatic polyamide fibers spun from an acid solution downwardly into a spin tube containing the fibers and a coagulating liquid is reduced when a gas is injected...
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4064296 |
Heat shrinkable multi-layer film of hydrolyzed ethylene vinyl acetate and a cross-linked olefin polymer
A heat shrinkable multi-layer packaging film having a layer of a hydrolyzed ethylene-vinyl acetate copolymer. Preferably, the film is formed by coextruding the hydrolyzed ethylene-vinyl acetate...
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3996321 |
Level control of dry-jet wet spinning process
In a process for forming fibers by extruding a spinning dope successively through a layer of inert gas and a tube immersed in a coagulating bath, the tension profile of the yarn passing through the...
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3833438 |
PROCESS FOR THE MANUFACTURE OF A NON-WOVEN WEB OF CONTINUOUS FILAMENTS THROUGH THE WET STRETCH SPINNING METHOD
A plurality of filaments are extruded simultaneously from a large number of spinning orifices arranged in a rectangular pattern. The filaments are contacted by a coagulating bath as they pass...
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3806572 |
PRODUCTION OF ASBESTOS PRODUCTS
Asbestos yarn having superior strength and uniformity is produced in a continuous process by disposing a plurality of stationary nozzles fed with asbestos dispersion within a coagulating bath to...
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3689620 |
HIGH SPEED WET SPINNING TECHNIQUE
In the spinning process the filaments leaving the spinnaret in a vertically downward direction pass through a first coagulating bath and the fluid entrained by the filaments is decelerated by means...
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3488344 |
METHOD AND APPARATUS FOR THE PRODUCTION OF MANMADE FIBRES AND MANMADE FIBRES OBTAINED THEREBY
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3452129 |
PROCESS FOR THE HIGH-SPEED SPINNING OF VISCOSE FILAMENTS
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3431336 |
FUNNEL SPINNING OF VISCOSE RAYON FILAMENTS
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3412191 |
Method for producing artificial fibers
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3402236 |
Manufacture and treatment of synthetic fibres and fabrics containing the same
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3388197 |
Stretched tubular film
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3341645 |
Method of producing viscose rayon staple and a spinning apparatus for use in the method
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3339000 |
Process for spinning filaments
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3330898 |
Method for preparing highly shrinkable acrylonitrile polymer fibers
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3240852 |
Wet spinning process
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3221088 |
Process and apparatus for orienting yarn
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3121764 |
Production of elastic filaments of polyesters containing isocyanate end groups
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3111369 |
Elastic polyurethane filamentary material and method of making same
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3084384 |
Wet spinning apparatus and process
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3071806 |
Wet spinning column and process
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3050820 |
Process for treating tire cord
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3049755 |
Process and apparatus for stretch spinning cuprammonium rayon
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3038205 |
Plastic tubing
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