Patents for D21H 11 - Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only (5,468)
08/1992
08/18/1992US5139530 Methylolamide crosslinker, swelling with alkali
08/06/1992WO1992013137A1 A kraft liner in multi-layer construction
07/1992
07/28/1992US5133834 Slurrying, gas injection; packaging, insulation, filtration, coating
07/15/1992EP0494270A1 Water absorption bag
07/08/1992EP0493726A1 Fibrous composition for making paper, paper and its use, and process for making the fibrous composition and the paper
07/08/1992EP0493516A1 Fibres of increased specific surface area, a method for their manufacture, fluff pulp consisting of such fibres and the use of the fibres as absorption material.
06/1992
06/30/1992US5126187 Photographic base paper
06/30/1992CA2058541A1 Fibrous component for paper production, paper made therewith and use thereof and method for producing fibrous component and paper
06/16/1992US5122230 Process for modifying hydrophilic fibers with substantially water-insoluble inorganic substance
06/05/1992WO1992010608A1 Security articles
06/05/1992CA2096649A1 Security articles
06/02/1992US5118609 Carrier fleece for use as a reagent carrier from which reagents can be dissolved in immunological analysis
06/02/1992US5118390 Without wet pressing; dry calendering
05/1992
05/19/1992US5114539 Water removal by replacement with liquid hydrocarbon; pressing
05/19/1992US5114537 Slurrying cellulose ester fibers in water, mixing with esters of cellulose, drainage, drying and cutting
05/13/1992EP0485240A1 Coated product, and methods for providng a coated substrate or for forming a printed substrate
05/10/1992CA2055167A1 Method for applying a high solids coating composition to a substrate
05/06/1992EP0484101A2 Paper towels having bulky layer
05/05/1992US5110412 Method of manufacture of paper or cardboard using recycled fibers treated with enzymes
04/1992
04/30/1992WO1992007140A1 Dry liquid depth filter sheet
04/28/1992US5108546 Bonded fibrous sheet material
04/21/1992CA1299048C Wrappers for specialty smoking devices
04/14/1992CA1298686C Decorative laminates having 3-dimensional effect
04/01/1992EP0478045A1 Soft paper of high strength and method for production thereof
03/1992
03/13/1992CA2051218A1 Soft paper of high strength and method for production thereof
03/03/1992CA1296608C Gypsum wallboard paper having imitation manila colored coating
02/1992
02/25/1992US5091055 Sheet prepared by wet means and usable as a backing for a covering material
02/18/1992US5089370 Light-sensitive material comprising light-sensitive layer provided on support
02/18/1992US5089327 Hardwood and cotton linters treated with wet strength resin and saturated with metal salt free, water soluble, cationic quaternary ammonium polymer
02/11/1992US5087324 Enhanced absorption rate and water holding capacity
02/06/1992WO1992001833A1 Process and apparatus for the production of paper products
02/05/1992CN1015387B Pulp-making method from soybean stalk
02/03/1992CA2046499A1 Chemi-mechanical liner board
01/1992
01/29/1992EP0468558A2 Production of paper and paperboard
01/28/1992WO1992002679A1 Water absorption bag
01/28/1992CA2066694A1 Water absorption bag
01/22/1992EP0466760A1 Cellulosic product, process for the production thereof and uses thereof
01/14/1992US5080758 Chemi-mechanical liner board
12/1991
12/24/1991US5074962 Dehydrating mixture of thermoplastic and natural fibers to for m paper sheet, writing, attaching superposed sheet by heating under pressure
12/19/1991DE4037299C1 Heat sensitive recording material - has recording layer contg. colourless dye precursor and acid cpd., applied on recycled paper having specific fibre content
12/04/1991EP0459519A1 Roll fill material and a filled calender roll covered with said material
12/02/1991CA2043777A1 Roll fill material and a filled calender roll covered with said material
11/1991
11/27/1991EP0307443B1 Wrapping material, method of manufacture and method of use
11/21/1991EP0457235A1 Process for modifying hydrophilic fibers with substantially water-insoluble inorganic substance
11/14/1991WO1991017243A1 A cellulase preparation comprising an endoglucanase enzyme
10/1991
10/29/1991US5061345 Method of making a multiple ply paper product containing an outer ply of reclaimed white office waste
10/16/1991CN1014333B Filler compositions and their use in manfacturing fibrous sheet materials
10/08/1991US5055161 Multiple ply paper product containing an outer ply of reclaimed white office waste
09/1991
09/25/1991EP0448344A2 Multiple ply paperboard product and method of making the same
09/24/1991CA1289399C Method for the manufacture of coloured egg packages, apparatus for carrying such a method into effect and egg packages manufactured by this method
09/24/1991CA1289306C Method for stabilizing the brightness of bleached lignin containing cellulose pulp
09/21/1991CA2038638A1 Multiple ply paperboard product and method of making the same
09/17/1991US5049235 Poly(methyl vinyl ether-co-maleate) and polyol modified cellulostic fiber
09/11/1991EP0445509A1 Multipurpose domestic paper
08/1991
08/21/1991EP0442746A1 Calcined kaolin clay filler pigment for paper
08/15/1991CA2035117A1 Calcined kaolin clay filler pigment for enhancing opacity and printing properties of newsprint and mechanical papers
08/14/1991WO1991012367A1 Ctmp-process
08/07/1991EP0440472A1 High bulking resilient fibers through cross linking of wood pulp fibers with polycarboxylic acids
08/02/1991CA2035402A1 High bulking resilient fibers through crosslinking of wood pulp fibers with polycarboxylic acids
07/1991
07/31/1991CN1053464A Compounding method of fine filter paper board raw material
07/30/1991US5035772 Chemically and blocking phenolic hydroxyl groups
07/23/1991CA1286464C Non-woven fibre product
07/17/1991CN1053011A Absorbent structure containing individualized, polycarboxylic acid crosslinked fibers
07/16/1991WO1991010774A1 Environmental pulp, method for its manufacture and use of pulp
07/16/1991US5032227 Production of paper or paperboard
07/16/1991CA2072585A1 Environmental pulp, method for its manufacture and use of pulp
07/10/1991EP0436133A1 The use of neutral paper as a package material for a photosensitive material
07/10/1991CN1052912A 纸张涂层 Paper Coatings
07/10/1991CN1052875A Individualized, polycarboxylic crosslinked fibers
07/09/1991CA1285713C Filler compositions and their use in manufacturing fibrous sheet materials
06/1991
06/29/1991WO1991010010A1 Cellulose fiber modified with poly(methyl vinyl ether-co-maleate) and polyol
06/29/1991WO1991009916A1 Fibers and pulps for papermaking based on chemical combination of poly(acrylate-co-itaconate), polyol and cellulosic fiber
06/19/1991EP0433258A1 Procedure for the production of pulp
06/19/1991CN1052344A Process for preparing individualized, polycarboxylic acid crosslinked fibers
06/13/1991WO1991008341A1 Paper coating
06/13/1991CA2072641A1 Paper coating
06/13/1991CA2031972A1 Procedure for the production of pulp
05/1991
05/29/1991EP0429112A2 Absorbent structure containing individualized, polycarboxylic acid crosslinked fibers
05/21/1991US5017268 Filler compositions and their use in papermaking
05/15/1991EP0427317A2 Process for preparing individualized, polycarboxylic acid crosslinked fibers
05/15/1991EP0427316A2 Individualized, polycarboxylic acid crosslinked fibers
05/09/1991WO1991007542A1 Hydrolysis of resin in pulp
05/09/1991CA2072993A1 Hydrolysis of resin in pulp
04/1991
04/30/1991US5011741 Addition of cooked or hydrolyzed corn starch improves tear strength of short fibers of newspapers for reuse as high strenth requirement
04/30/1991US5011534 Degritting, spray drying, pulverizing, roasting and repulverizing
04/23/1991CA1283258C High strength, cellulosic-gel-containing kraft paper and process for making the same
04/18/1991WO1991005108A1 Fibres of increased specific surface area, a method for their manufacture, fluff pulp consisting of such fibres and the use of the fibres as absorption material
04/18/1991WO1991005106A1 Aluminium-salt impregnated fibres, a method for their manufacture, fluff consisting of such fibres, and the use of the fibres as absorption material
03/1991
03/19/1991US5000822 Process for the preparation of imitation leather from natural hemp and the product thereof
03/13/1991EP0416278A2 Creped cellulose tissue paper
02/1991
02/20/1991CN1049390A Making method of painting paper
02/07/1991WO1990004066A3 Hydraulically entangled wet laid base sheets for wipers
01/1991
01/22/1991US4987022 Non-inflammable light-weighing tough board
01/22/1991US4986882 Absorbent paper comprising polymer-modified fibrous pulps and wet-laying process for the production thereof
01/16/1991EP0408128A2 Absorbent paper comprising polymer-modified fibrous pulps and wet-laying process for the production thereof
01/08/1991US4983256 Method for the manufacture of a paper pulp for currency use
12/1990
12/27/1990EP0403849A2 High opacity paper containing expanded fiber and mineral pigment
12/19/1990EP0403068A2 Improvements in and/or relating to a process for preparing a hydrolysed lignocellulosic material
12/19/1990EP0402866A2 Organic microfibrilated material for filter
12/19/1990CN1047899A Pulp-making method from soybean stalk
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