Patents for D01F 2 - Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof (4,622)
07/1981
07/21/1981CA1105204A1 Process for making a solid impregnated precursor of a solution of cellulose
06/1981
06/30/1981US4276173 For use in artificial kidneys; concurrent removal of water and urea from blood
06/30/1981US4276172 Cellulosic membrane for blood dialysis
06/16/1981US4273118 Fibers of high fluid holding capacity
05/1981
05/19/1981CA1101589A1 Flame resistant cellulosic products
04/1981
04/21/1981US4263244 Blending viscose, acrylic acid or methacrylic acid polymer
04/21/1981US4263180 Method for occluding sequestering agents in filamentary structure, occluded sequestering agents thus obtained and their applications
04/14/1981US4261943 Process for surface treating cellulose products
03/1981
03/17/1981US4256613 Composition and process for making precipitated nylon-cellulose biconstituent composition
03/17/1981US4256111 Cellulose ethers and esters unidirectionally aligned; crosslinking; grafting; very absorbent; disposable products
02/1981
02/24/1981US4252855 Microporous structure
02/24/1981US4252766 Extrusion, coagulation
02/24/1981CA1096106A1 Cellulose - solvant dmso formol
02/04/1981EP0023384A1 Fibres of high fluid-holding capacity, a method for their preparation and articles made therefrom
01/1981
01/20/1981US4246221 Extrusion, molecular orientation
01/13/1981US4245000 Viscose rayon
01/07/1981EP0020590A1 Procedure for the preparation of crimped high-wet-modulus staple fibres.
12/1980
12/30/1980US4242405 Viscose rayon and method of making same
12/30/1980US4242242 Polymers of 2-acrylamido-2-methyl-1-propanesulfonic acid
12/23/1980US4240937 Tampons
12/16/1980CA1091411A1 Alkali alloy fiber, shaped article comprising the same and method of preparing the same
12/16/1980CA1091409A1 Dry phase inversion of exterior of cellulose acetate hollow fibre
12/09/1980CA1091375A1 Alloy fibers of rayon and copolymers of acrylic and methacrylic acid
12/09/1980CA1090965A1 Production of high crimp, high stenght, hollow rayon fibers
12/09/1980CA1090964A1 Production of high strength hollow rayon fibers
12/02/1980US4237274 Process for the preparation of solutions of cellulose derivatives which can be coagulated and spun to form regenerated cellulose _bodies
11/1980
11/18/1980US4234431 Membrane filtration type hollow fibers and method for the preparation of same
11/18/1980CA1089613A1 Manufacture of flame-retardant regenerated cellulose fibres
10/1980
10/21/1980CA1087820A1 Extrusion of polymeric spinning emulsion containing sequestering agent
10/14/1980CA1087772A1 Process for preparing shaped cellulose acetate article
09/1980
09/16/1980CA1085810A1 Regenerated cellulose fibers containing alkali metal or ammonium salt of a copolymer of an alkyl vinyl ether and ethylene dicarboxylic acid or anhydride and a process for making same
09/02/1980US4220472 Dioxaphosphorinane derivatives as flameproofing agents
08/1980
08/05/1980CA1082866A1 Regenerated cellulose matrix fibres containing n- vinyl amide polymer
07/1980
07/29/1980CA1082692A1 Hollow cellulosic fibers
07/29/1980CA1082691A1 Shaped cellulosic fibers
07/22/1980CA1082382A1 Fluid absorbent cellulose fibers containing alkaline salts of polymers of acrylic acid, methacrylic acid or an acryloamidoalkane sulfonic acid with aliphatic esters of acrylic acid or methacrylic acid
07/15/1980CA1081415A1 Production of discrete cellulose acetate fibers by emulsion flashing
07/09/1980EP0012928A1 Process for making viscose
07/08/1980US4211574 Process for making a solid impregnated precursor of a solution of cellulose
07/01/1980CA1080417A1 Addition of reaction product of tetrakishydroxy methyl phosphonium in viscose spinning
06/1980
06/10/1980CA1079015A1 Spinning method and apparatus
06/10/1980CA1079005A1 Cellulose solutions and products prepared therefrom
06/03/1980CA1078571A1 Cellulose solution extruding or forming process, and products thus obtained
06/03/1980CA1078570A1 Process for shaping cellulose solutions
06/03/1980CA1078569A1 Process for shaping cellulose solutions
05/1980
05/15/1980WO1980000979A1 Procedure for the preparation of crimped high-wet-modulus staple fibres
05/06/1980CA1076912A1 Filter material
04/1980
04/22/1980US4199367 Alloy rayon
04/01/1980US4196282 Process for making a shapeable cellulose and shaped cellulose products
03/1980
03/11/1980US4192838 Process for producing filter material
01/1980
01/08/1980US4182735 Production of high crimp, high strength, hollow rayon fibers
12/1979
12/18/1979US4179416 Polyvinylpyrrolidone, viscose
12/04/1979US4177236 Process for producing regenerated cellulose containing cross linked sodium lignate or sodium lignosulfonate
12/04/1979CA1067263A1 Cellulose acetate fiber
11/1979
11/06/1979US4173613 Dimethyl sulfoxide, ammonia, formaldehyde
09/1979
09/18/1979CA1062425A1 Hydrophilic structures of water-insoluble polymers
08/1979
08/28/1979US4165743 Regenerated cellulose fibers containing alkali metal or ammonium salt of a copolymer of an alkyl vinyl ether and ethylene dicarboxylic acid or anhydride and a process for making them
08/14/1979US4164437 Layers of regenerated cellulose
08/14/1979CA1060342A1 Fibres incorporating antibodies, antigens and antisera, method for their preparation and their use
08/07/1979CA1060038A1 Organic compounds
07/1979
07/25/1979EP0003135A2 Process for improving the solubility of viscose
06/1979
06/26/1979US4159299 From viscose, continuous processing of filaments
06/12/1979USRE30029 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium
03/1979
03/27/1979CA1051256A1 Process for the production of a plasticized shaped body from a cellulose derivative
03/21/1979EP0001047A2 Viscose membrane for dialysis, especially for hemodialysis, and process for its fabrication
03/20/1979US4145391 Cellulose fiber process
03/13/1979US4144080 Process for making amine oxide solution of cellulose
03/13/1979US4144079 Rayon fibers containing starch
03/13/1979CA1050225A1 Cellulose acetate fiber
03/06/1979US4142913 Process for making a precursor of a solution of cellulose
02/1979
02/06/1979CA1047750A1 Filaments of chemically modified cellulose fibers, method of making such filaments and webs and products formed therefrom
01/1979
01/30/1979US4136697 Fibers of high fluid-holding capacity
01/09/1979CA1045755A1 Process for adding particulate cellulose to alkali cellulose
12/1978
12/19/1978US4130689 Production of high strength hollow rayon fibers
12/12/1978US4129679 Multi-limbed regenerated cellulose filaments
12/12/1978US4129640 Process for producing shaped articles of cellulose
12/12/1978US4129451 In dimethyl sulfoxide and formaldehyde
12/12/1978CA1043999A1 Method for the manufacture of twistless or substantially twistless yarn and yarn manufactured by the application of that method
11/1978
11/21/1978US4126656 Method for manufacturing filaments of viscose
10/1978
10/31/1978US4123398 Flame resistant cellulosic product containing antimony pentoxide and polyvinyl bromide
10/17/1978US4121012 Extrusion, spinning, coagulation, stretching
10/17/1978US4120836 Regeneration in a solution containing urea or its substituted derivatives
09/1978
09/05/1978US4111701 Flame retardant regenerated cellulose filaments containing cross-linked polymeric phosphazenes
09/05/1978CA1037952A1 Stillbene derivatives with sulfonic acid groups
08/1978
08/29/1978US4110596 Apparatus for transporting and collecting self-propelled welding carriages
08/22/1978CA1036966A1 High permeability cellulose fibers containing enzymes and process for the preparation thereof
08/01/1978US4104214 Fluid absorbent cellulose fibers containing alkaline salts of polymers of acrylic acid, methacrylic acid or an acryloamidoalkane sulfonic acid with aliphatic esters of acrylic acid or methacrylic acid
07/1978
07/18/1978US4101528 Copolyesters of ethylene 2,6-naphthalene dicarboxylate and halogenated comonomers
04/1978
04/25/1978US4086418 Process for producing a regenerated hollow cellulosic fiber
04/11/1978US4083833 Method for the production of cellulosic fibres having a high resistance to combustion, and textile products prepared by said method
02/1978
02/28/1978US4076933 Nitrosating cellulose, regeneration with an alcohol
01/1978
01/03/1978US4066730 Polyphosphonates
01/03/1978US4066584 Alloy fibers of rayon and copolymers of acrylic and methacrylic acids
12/1977
12/20/1977US4063883 Phosphorus penta(nitride) and a phosphate or phosphonate
12/20/1977US4063558 Article and method for making high fluid-holding fiber mass
11/1977
11/22/1977US4059546 Textile fiber blend comprising cellulosic fibers and ethylene 2,6-naphthalene dicarboxylate-halogenated comonomers copolyester fibers
10/1977
10/04/1977US4051658 Method of manufacturing twistless yarn and yarn made by this method
08/1977
08/30/1977US4045532 Process of producing viscose yarn
08/23/1977US4044076 Method for producing phosphorus-containing polymers
08/09/1977US4041121 Method for making high fluid-holding fiber mass
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