Patents for D01F 2 - Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof (4,622)
09/1992
09/03/1992WO1992014871A1 Elongate member production method
08/1992
08/12/1992CN1063512A Zincless spinning method for viscose
07/1992
07/21/1992CA1305471C Procedure for lowering the carbamate content of products made of cellulose carbamate, and products made by the procedure
07/15/1992EP0494852A2 Process for the production of cellulosic articles
07/15/1992EP0494851A2 Process for the production of cellulosic articles
07/15/1992CN1062740A Aliphatic-aromatic copolyesters and cellulose ester/polymer blends
07/10/1992CA2059043A1 Method of producing shaped cellulosic articles
06/1992
06/17/1992EP0490870A2 Process for the production of cellulose articles
06/17/1992EP0490678A2 Process for the production of cellulose ester fibrets
06/17/1992EP0490677A2 Process for the production of cellulose ester fibrets
06/08/1992CA2057133A1 Method of producing shaped cellulosic articles
06/04/1992WO1992009726A1 Production of high strength cellulose fiber using zinc chloride, organic solvents and aqueous solution
06/04/1992CA2044263A1 Production of high strength cellulose fiber using zinc chloride, organic solvents and aqueous solution
06/03/1992EP0488988A1 Process for purifying aqueous solutions of N-methyl-morpholine N-oxide
06/03/1992EP0488063A1 Cellulose dialysis hollow fibres
05/1992
05/31/1992WO1992009654A2 Aliphatic-aromatic copolyesters and cellulose ester/polymer blends
04/1992
04/30/1992WO1992007124A1 Treatment of fibre
04/15/1992CN1060295A Solution of cellulose in water and n- methylmorpholine-n-oxide
03/1992
03/11/1992CN1059378A Manufacturing method of viscose staple fibre
03/10/1992US5094690 Process and arrangement for preparing a solution of cellulose
02/1992
02/04/1992US5086108 Forming cellulose acetate or poly(m-phenylene isophthalamide) polymer solution in dimethylacetamide solvent, dispersing particle of metal, shear precipitation, separation and drying
01/1992
01/22/1992EP0467008A1 Aqueous N-methylmorpholine N-oxide solution of cellulose
01/22/1992EP0466778A1 Fibers capable of spontaneously transporting fluids.
01/21/1992CA1294520C Pneumatic tire cover with carcan made of regenerated cellulose fiber
01/17/1992CA2046783A1 Cellulose solution in water and nmmo
12/1991
12/17/1991US5073581 Spinnable dopes for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends
12/10/1991US5071599 Process for the production of cellulose ester fibrets
11/1991
11/07/1991DE4106029A1 Stable moulding and spinning material
10/1991
10/31/1991WO1991016357A1 Cellulose derivatives
10/23/1991EP0452610A2 Process for the preparation of an aqueous N-methylmorpholine N-oxide solution of cellulose
10/21/1991CA2040844A1 Method of making an aqueous solution of cellulose
10/08/1991US5055570 Cuprammonium-stable cellulose esters and carbamates for dialysis membranes
10/08/1991US5055207 Filtration of cellulose ester dope
10/01/1991US5053138 Anion exchange resin; one step process, no loss of n-methyl-morpholine n-oxide; acidic regeneration of resin
09/1991
09/10/1991US5047197 Polyoxyethylene glycol, flow rate
08/1991
08/29/1991WO1991012737A1 Tobacco smoke filter material and process for production thereof
08/29/1991CA2075814A1 Tobacco smoke filter material and process for production thereof
08/21/1991EP0442405A2 Process and apparatus for the preparation of moulded articles
06/1991
06/27/1991WO1991009163A1 Modified viscose fibres and method for their manufacture
05/1991
05/22/1991EP0423249A4 Extrusion of hollow fibre membranes
05/15/1991EP0427701A1 Process for purifying aqueous solutions of N-methyl-morpholine N-oxide
04/1991
04/24/1991EP0423249A1 Extrusion of hollow fibre membranes.
04/17/1991EP0408688A4 Porous membranes
04/17/1991CA2027513A1 Process for purifying an aqueous solution of n-methyl-morpholine n-oxide
04/16/1991US5008385 Cellulose derivatives and fibers and membranes made therefrom
04/16/1991CA1283099C Microbial polysaccharide articles and methods of production
04/04/1991WO1990012130A3 Fibers capable of spontaneously transporting fluids
03/1991
03/20/1991EP0418082A1 Membrane fabrication
03/19/1991US5001331 System for establishing production history
03/19/1991US5000898 Process for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends
03/16/1991WO1991004092A1 Membrane fabrication
03/16/1991CA2040409A1 Membrane fabrication
03/12/1991US4999149 Cellulose and zinc chloride mixture, stirring, extrusion, coagulation followed by stretching, immersion in bath and crystallization
02/1991
02/19/1991CA1280264C Process for preparing high strength cellulosic fibers
02/13/1991CN1049108A Extrusion of hollow fibre membranes
01/1991
01/23/1991EP0408688A1 Porous membranes.
01/23/1991CN1011319B Foamed synthetic fiber and its manufanturing method
01/15/1991CA1278907C Porous cellulose ester articles having striated surfaces
12/1990
12/19/1990CN1010861B Porous cellulose ester articles having striated surfaces
12/05/1990CN1010687B Anisotropy compound of cellulose esters and method of preparing this compound and cellulose esters or cellulose fibres
10/1990
10/24/1990CN1046361A Fibers capable of spontameously transporting fluids
10/17/1990EP0392557A2 Process for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends
10/16/1990US4963298 Extrusion of an antsotropic solution of a polymer through a spinneret aperture, pressurization by gas flow, attenuation
10/13/1990CA2014095A1 Process for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends
10/10/1990EP0391814A2 Fibers capable of spontaneously transporting fluids
10/09/1990CA1274952A1 Anisotropic compounds of cellulosic esters, processes to produce them, and fibers made of cellulose or cellulosic esters
10/05/1990WO1990012130A2 Fibers capable of spontaneously transporting fluids
10/03/1990EP0390580A2 Fibrids loaded with electromagnetic-wave obscurants
09/1990
09/30/1990CA2013213A1 Fibrids loaded with electromagnetic-wave obscurants
09/05/1990CN1045138A Regeneration method of cigarette-used plastic cotton
08/1990
08/08/1990EP0381206A2 Fiber, rovings and mats from lyotropic liquid crystalline polymers
07/1990
07/11/1990CN1043636A Porous membranes
07/11/1990CN1008714B Pneumatic tyre, carcass of which is formed of regenerated cellulose fiber
05/1990
05/22/1990US4926920 At least one filament having a base of cellulose and/or cellulose formate; reduced rolling resistance
05/17/1990WO1990005007A1 Porous membranes
05/17/1990WO1990005006A1 Extrusion of hollow fibre membranes
05/16/1990CN1042165A Process and arrangement for preparing solution of cellulose
05/08/1990US4923979 Cellulose carbamate products of lowered carbamate content
04/1990
04/11/1990EP0362825A2 Viscose rayon fiber having superior appearance
04/04/1990EP0220642B1 Pneumatic tyre having a carcass constituted by regenerated cellulose fibres
03/1990
03/22/1990DE3930652A1 Continuous rayon filament mfr. - gives prim. drawing at spinning unit and filaments pass in parallel through remaining stages to winding
03/06/1990CA1266467A1 Procedure for precipitating cellulose carbamate
02/1990
02/28/1990EP0356419A2 Process for producing solutions of cellulose
02/28/1990CN1040066A Colored aramid fibers
02/21/1990EP0354937A1 Composite membranes of poly(methyl methacrylate) blends
02/07/1990EP0353561A1 Dialysis membranes of cuoxame-stable cellulose esters and carbamates
01/1990
01/23/1990US4895312 Take-up module for continuous filaments
12/1989
12/19/1989US4888147 Process for production of cellulose acetate molding materials
12/19/1989CA1263903A1 Hollow fiber for dialysis and method for manufacture thereof
12/12/1989US4886631 Cellulose ester hollow fiber membrane for plasma separation
12/06/1989EP0345151A2 Method for production of hollow fiber membrane
11/1989
11/21/1989US4882106 Modification of interior bores of regenerated cellulose hollow fibers; dialysis membranes, preventing complement activation, removing microglobulins
11/14/1989US4880469 Process for the preparation of a shapeable solution of cellulose in the presence of a tertiary amine oxide and an additive
10/1989
10/31/1989US4877421 Heat treatment to remove impurities
10/25/1989EP0338074A1 Treatment of permeable membranes
10/11/1989EP0303684A4 Methods of making biocompatible nucleophilic material.
10/10/1989US4872983 Biocompatible cellulose dialysis membrane with increased adsorption of beta-2-microglobulin
10/04/1989CN1036051A Manufacturing process of hydrogen chloride gas mixture to be used in production of high strength carbon fibre
09/1989
09/13/1989EP0215082B1 Method for the preparation of solutions of lignocellulosic materil and solutions obtained thereby
08/1989
08/29/1989US4861874 Method of lowering the carbamate content of cellulose carbamate products using a base/alkali metal salt mixture
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