| Patents for D21H 11 - Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only (5,468) |
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| 12/14/1990 | CA2018867A1 Organic microfibrilated material for filter |
| 12/12/1990 | EP0401538A2 Cellulose-based, inflammable, bulky processed sheets and method for making such sheets |
| 12/12/1990 | EP0380471A4 Nonwoven fabric-like product using a bacterial cellulose binder and method for its preparation |
| 12/11/1990 | US4976819 Wringing, dewatering, compacting |
| 11/28/1990 | EP0399564A2 Absorbent web and applications of same |
| 11/28/1990 | CN1047300A Improvements in and/or relating to process for preparing hydrolysed lignocellulosic material |
| 11/27/1990 | CA1276753C Non-woven fibrous composite materials and method for the preparation thereof |
| 11/22/1990 | EP0398825A1 Process for making a plane, supple and hardly tearable substrate, and the same |
| 11/20/1990 | CA1276412C Loaded paper |
| 11/11/1990 | CA2016445A1 Process for preparing a hydrolysed lignocellulosic material |
| 10/23/1990 | US4964933 Method for producing an insulating polyolefin laminated paper |
| 10/03/1990 | EP0389612A1 Hydraulically entangled wet laid base sheets for wipers. |
| 10/01/1990 | WO1990011978A1 Cellulosic product, process for the production thereof and uses thereof |
| 10/01/1990 | CA2050600A1 Cellulosic product, process for the production thereof and uses thereof |
| 09/25/1990 | US4959272 Gypsum wallboard paper having imitation manila colored coating |
| 09/18/1990 | US4957599 Alkaline extraction, peroxide bleaching of nonwoody lignocellulosic substrates |
| 08/28/1990 | US4952278 High opacity paper containing expanded fiber and mineral pigment |
| 08/08/1990 | EP0380471A1 Nonwoven fabric-like product using a bacterial cellulose binder and method for its preparation |
| 08/08/1990 | CN1009119B Pure flax tissue paper for making fuse |
| 08/01/1990 | EP0380127A2 Thermosealing paper for tea bags, and process for making the same |
| 07/18/1990 | EP0377983A2 Newsprint |
| 07/03/1990 | US4938412 Manufacture of colored egg packages |
| 06/06/1990 | EP0215044B1 Method for preparing a fibrous sheet by using paper manufacturing techniques |
| 05/31/1990 | WO1990005808A1 Easily defibered web-shaped paper product |
| 05/15/1990 | US4925530 Fillers and papermaking fibers treated with charged polymers separately |
| 05/01/1990 | US4921945 Disazo dyes containing an acetoacetabukube coupling component and a quaternized aminoalkylene aminocarbonyl group bound to it |
| 04/19/1990 | WO1990004066A2 Hydraulically entangled wet laid base sheets for wipers |
| 04/03/1990 | US4913775 Production of paper and paper board |
| 03/13/1990 | US4908097 Applying N,N-methylenebisacrylamide to fibers, applying alkali, maintaining consistency of fibers, maintaining temperature below boiling point of water, excluding free radical initiators and air from the fibers |
| 03/06/1990 | US4906521 Non-woven fibre product |
| 02/15/1990 | DE3908685A1 Paper sheets for production of a postcard for confidential communications, and process for the production thereof |
| 01/16/1990 | US4894119 Retention and/or drainage and/or dewatering aid |
| 01/11/1990 | WO1990000213A1 Lignocellulosic material and a method for its manufacture |
| 01/03/1990 | CN1006315B High extender paper-making process using grass, wood pulp as fibric material |
| 12/26/1989 | US4889597 Dialdehyde-crosslinked cellulosic fibers; slurrying, flocculation, setting |
| 12/19/1989 | US4888220 Decorative laminates having 3-dimensional effect |
| 12/19/1989 | US4888092 Primary paper sheet having a surface layer of pulp fines |
| 12/06/1989 | EP0344265A1 Low-density material containing a vegetable filler. |
| 11/29/1989 | EP0343850A2 Absorbent structures from mixed furnishes |
| 11/08/1989 | EP0340729A1 Machine for producing spun or twisted yarns |
| 11/02/1989 | WO1989010446A1 Pulp treatment methods |
| 10/18/1989 | EP0337653A2 Improved alkaline peroxide treatment of nonwoody lignocellulosic substrates |
| 10/18/1989 | EP0337310A1 Poly(vinyl alcohol-vinylamine)copolymers for improved moist compressive strength of paper products |
| 10/11/1989 | EP0336842A1 Process for producing a paper pulp for fiduciary use |
| 10/04/1989 | EP0335575A2 Production of paper and paper board |
| 10/04/1989 | CN1036060A Paper of manufacturing by wet process and for basic level of cover material |
| 09/27/1989 | EP0334739A1 Process for manufacturing papers and boards from recycled fibres which have been treated with enzymes |
| 09/13/1989 | EP0097716B1 High bulk pulp, filter media utilizing such pulp, related processes |
| 09/08/1989 | WO1989008302A1 Tactile imaging paper |
| 09/06/1989 | EP0331047A1 Papermaking process comprising the addition of high molecular weight poly(vinylamines) to the wet-end cellulose fiber slurry |
| 09/05/1989 | US4863979 Latex compositions useful as binders in composite board having dimensional stability and strength |
| 08/22/1989 | US4859804 Electric power supply cable using insulating polyolefin laminate paper |
| 08/22/1989 | US4859454 Paper distributing an active compound on burning, and a pyrotechnic distributor using such paper |
| 08/22/1989 | US4859340 Siliceous particles, self-bonding matrix of cellulose fiber and cationic resin |
| 08/22/1989 | US4859283 Delignification, bleaching to form edible materials |
| 08/22/1989 | US4859282 Acidification with aqueous mineral or organic acid |
| 08/09/1989 | CN1034597A High-filling paper making process using straw, wood pulp as fibrous raw material |
| 08/02/1989 | EP0326135A1 Carrier fleece for impregnated releasable reagents |
| 08/01/1989 | US4853085 Neutral sized paper for use in the production of gypsum wallboard |
| 07/13/1989 | DE3817552A1 A process for producing paper-covered absorbent cardboards |
| 06/29/1989 | WO1989005884A1 Low-density material containing a vegetable filler |
| 06/28/1989 | EP0322287A1 Wet-laid sheet for use as a coating support |
| 06/28/1989 | EP0321583A1 Formed calcium silicate plate and process for its production |
| 06/06/1989 | US4836892 Pulp blends for linerboards |
| 05/23/1989 | US4832791 Multipurpose sheet material and method of manufacture |
| 05/17/1989 | EP0315709A1 Newsprint furnish and newsprint paper |
| 05/11/1989 | DE3836658A1 Modifiziertes papier, verfahren zu seiner herstellung und ein pflanzenwuchszellsystem, hergestellt aus diesem papier Modified paper, process for its production and a plant growth-cell system made from this paper |
| 04/05/1989 | EP0310350A2 Decorative laminates having 3-dimensional effect and sheets for use therein |
| 04/04/1989 | CA1251978A1 Fibrous webs of enhanced bulk and method of manufacturing same |
| 03/22/1989 | EP0307443A1 Wrapping material, method of manufacture and method of use. |
| 03/21/1989 | US4814440 Process for producing extractive-material-reduced cellulose |
| 02/22/1989 | EP0304368A1 Wet laid thermoplastic web compositions |
| 02/22/1989 | EP0303790A1 Manufacture of coloured egg packages |
| 02/09/1989 | WO1989001075A1 Compositions for thermoplastic sheet manufactured by a wet process |
| 02/09/1989 | WO1989001074A1 Nonwoven fabric-like product using a bacterial cellulose binder and method for its preparation |
| 02/09/1989 | WO1989001072A1 Method for manufacture of paper products |
| 01/31/1989 | CA1249584A1 Method for preparation of cationic cellulose |
| 01/03/1989 | US4795530 Treating surface of a cellulosic fibrous web with a chemical debonding agent |
| 12/29/1988 | WO1988010338A1 Formed calcium silicate plate and process for its production |
| 12/29/1988 | WO1988010337A1 Manufacture of coloured egg packages |
| 12/07/1988 | EP0294330A2 Cationic disazo dyes |
| 11/08/1988 | US4783438 Partially pressure-sensitive recording paper |
| 10/25/1988 | US4779631 Wrappers for specialty smoking devices |
| 10/19/1988 | CN88101244A Pure flax tissue paper for making fuse |
| 10/18/1988 | US4778711 Paper for receiving toner images in electrophotography |
| 10/13/1988 | DE3710498A1 Recycled paper mfr. - uses flax fibres in the pulp to improve paper shear strength |
| 10/11/1988 | US4777032 Paper distributing an active compound on burning, and a pyrotechnic distributor using such paper |
| 09/22/1988 | WO1988007009A1 Wrapping material, method of manufacture and method of use |
| 09/14/1988 | EP0281967A1 Smoking article with double wrapper |
| 08/31/1988 | EP0280332A1 A method for stabilizing the brightness of bleached lignin containing cellulose pulp |
| 08/24/1988 | EP0279617A2 Photographic base paper |
| 08/09/1988 | US4762965 Insulating polyolefin laminate paper and method for producing same, and electric power supply cable |
| 08/09/1988 | US4762816 Heat-sensitive recording paper |
| 07/14/1988 | WO1988005090A1 Non-woven fibre product |
| 06/29/1988 | EP0272497A2 Low-dielectric constant press board for oil impregnation insulation |
| 06/02/1988 | WO1988003871A1 Gypsum wallboard paper having imitation manila colored coating |
| 05/11/1988 | EP0266850A2 A composite board comprising inorganic and/or cellulosic materials and a latex composition as a binder, said composite board having dimensional stability and strength |
| 04/12/1988 | CA1235013A1 Process for dry deinking of secondary fiber sources |
| 04/06/1988 | EP0262553A2 Process for treating cellulosic raw materials |
| 03/30/1988 | EP0261820A1 Filler compositions and their use in manufacturing fibrous sheet materials |