| Patents for D21H 21 - Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties (20,755) |
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| 06/14/1989 | EP0320121A2 Method for stabilizing aqueous solutions of cationic thermosetting polyamide-epichlorohydrin resins |
| 06/07/1989 | EP0319157A2 Security paper for bank notes and the like |
| 06/07/1989 | EP0318821A2 Triphenedioxazine dyes containing imidazolyl methylene groups |
| 06/07/1989 | EP0318770A1 Light-polarizing material in the form of sheets or of a web and a method for the manufacture of the material |
| 06/06/1989 | US4837079 Antimicrobially active, non-woven web used in a wet wiper |
| 05/31/1989 | EP0318294A2 Dimeric and trimeric cationic dyes |
| 05/30/1989 | US4835212 Particles of actylic ester and nitrile copolymers having a protecctive coating of a biodegraded cellulose |
| 05/30/1989 | US4835211 Emulsion polymerization of butadiene, styrene gives film-forming particles iwth hydrophilic surfaces |
| 05/30/1989 | US4834910 Coating agent for imparting electroconductivity |
| 05/24/1989 | EP0316649A2 Water insoluble azo colouring agents, their preparation and use |
| 05/24/1989 | EP0200755B1 Hydrophobing agent for cellulosic fibers, method of preparing the agent, and use of the agent for stock hydrophobation |
| 05/24/1989 | EP0198848B1 Anionic monoazo compounds of the benzothiazole series |
| 05/23/1989 | US4833311 Security markings, material provided with security marks, and apparatus to detect the security mark |
| 05/23/1989 | US4832942 Touch effective disinfectant tape |
| 05/17/1989 | EP0315718A2 Aqueous dispersion of cationic ethylenic copolymer |
| 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 |
| 05/10/1989 | EP0315185A2 Process for preparation of water absorptive composite |
| 05/05/1989 | WO1989003863A1 Cationic clays and uses in paper and paints |
| 05/02/1989 | US4826881 Crosslinked carboxylated polyester, papermaking |
| 05/02/1989 | US4826570 Sizing agent |
| 04/26/1989 | EP0313272A2 A method of inhibiting the growth of microorganisms in aqueous liquids |
| 04/26/1989 | EP0312838A2 Basic azodyes, their preparation and their use |
| 04/25/1989 | US4824689 Method for producing virucidal tissue products containing water-soluble humectants |
| 04/19/1989 | EP0311642A1 Temperature adaptable textile fibers and method of preparing same. |
| 04/18/1989 | US4822452 Polyetherurethane block copolymer thickener |
| 04/11/1989 | US4820912 Method and apparatus for checking the authenticity of documents |
| 04/11/1989 | US4820645 Testing polyelectrolytes |
| 04/06/1989 | WO1989002952A1 Market paper pulp, process for making market paper pulp and use of such pulp in papermaking |
| 04/06/1989 | DE3737784A1 Kreditpapier Credit paper |
| 04/05/1989 | EP0309908A2 Process for colouring paper |
| 04/04/1989 | US4818341 Production of paper and paperboard of high dry strength |
| 04/04/1989 | CA1251980A1 Composite nonwoven sheet |
| 03/29/1989 | EP0308752A2 Method for dewatering paper |
| 03/28/1989 | US4816073 Paper, paperboard, polyaluminum compounds |
| 03/28/1989 | CA1251787A1 Cationic phthalocyanine compounds |
| 03/21/1989 | US4814043 Apparatus for the manufacture of a material in the form of sheets or a web provided with a watermarklike pattern |
| 03/16/1989 | DE3829002A1 Security printing and writing substrate authenticated by heating |
| 03/15/1989 | EP0307139A2 Vesiculated polymer granules |
| 03/15/1989 | EP0306639A1 Process for the manufacture of magnetic paper and paper thereof |
| 03/14/1989 | CA1251034A1 Chemically-active composition containing divalent iron ions |
| 03/08/1989 | EP0306452A2 Cationic disazo stilbene dyes |
| 03/07/1989 | CA1250703A1 Papermaking process |
| 03/01/1989 | EP0304463A1 A process for the production of paper. |
| 02/28/1989 | US4808633 Vesiculated polymer granules |
| 02/28/1989 | US4808466 Deodorant sheet |
| 02/23/1989 | WO1989001500A1 Thermosetting size press composition |
| 02/22/1989 | EP0303790A1 Manufacture of coloured egg packages |
| 02/22/1989 | EP0303725A1 Security paper |
| 02/21/1989 | US4806410 Processes for the production of antistatic or static dissipative paper, and the paper products thus produced, and apparatus utilized |
| 02/21/1989 | US4806207 Structured latex particles having reinforcing and opacity characteristics |
| 02/15/1989 | EP0218674B1 Papermaking 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 |
| 02/01/1989 | EP0301372A1 Process for producing paper and board having a great dry strength |
| 02/01/1989 | CN1030777A Surface sizing compositions |
| 01/31/1989 | US4801699 Polysaccharide esters containing acetal and aldehyde groups |
| 01/31/1989 | US4801355 Tabular acicular gypsum and method of filling paper |
| 01/25/1989 | EP0300909A1 Reinforced thermoplastics sheet and its manufacturing process |
| 01/24/1989 | CA1249388A1 Paper sizing method |
| 01/18/1989 | EP0299817A1 Inverse microlatex useful as a floatation and drainage adjuvant, and for the absorption and retention of aqueous fluids |
| 01/17/1989 | US4798653 Anionic acrylamide polymer, cationic silica sol |
| 01/17/1989 | CA1248711A1 Manufacture of dry or wet crepe paper |
| 01/12/1989 | DE3821627A1 New cationic diazo dyestuff cpds. prepn. and use as ink and dye - e.g. benzanilide-4,4'-diazo-bis -4-4-acetyl:acetamido-3'-(N,N,N -trimethylaminopropyl)-benzamide chloride-metho:sulphate |
| 01/10/1989 | US4797176 Amino plast crosslinking agent for hydroxy monomer |
| 01/10/1989 | US4796381 Dividing carrier into zones by printing-some containing active material and some blank |
| 01/04/1989 | EP0297500A1 Thermoformable fibrous mat and process for making the same |
| 01/04/1989 | EP0297125A1 Pattern forming saturator and impregnating method |
| 01/03/1989 | US4795531 Method for dewatering paper |
| 01/03/1989 | US4795530 Treating surface of a cellulosic fibrous web with a chemical debonding agent |
| 12/29/1988 | WO1988010337A1 Manufacture of coloured egg packages |
| 12/29/1988 | WO1988010274A1 Invert microlatices useful as flotation and drainage additives and for absorption and retention of aqueous fluids |
| 12/29/1988 | DE3719882A1 Method for producing pyrographic objects to be published |
| 12/28/1988 | EP0296971A1 Continuous process for producing a printing/writing paper and perfumed product obtained |
| 12/28/1988 | EP0296729A1 Surface sizing compositions |
| 12/28/1988 | CA1247493A Procedure for dispensing talc |
| 12/13/1988 | US4790907 Synthetic fiber |
| 12/13/1988 | US4790906 Sizing, chopping and freezing wet fibers; slurrying |
| 12/07/1988 | EP0294330A2 Cationic disazo dyes |
| 12/07/1988 | CN88102312A Use of high molecular weight sulfonate as auxiliary dispersants for structured kaolins |
| 12/06/1988 | US4789564 Hydridoaminosilane treatment for rendering surfaces water-repellent |
| 11/30/1988 | EP0293119A1 Paper sizing compositions |
| 11/29/1988 | US4788280 Polysaccharide derivatives containing aldehyde groups on an aromatic ring, their preparation from the corresponding acetals and use in paper |
| 11/29/1988 | US4788243 Creping adhesives containing polyvinyl alcohol and thermoplastic polyamide resins derived from poly(oxyethylene) diamine |
| 11/23/1988 | EP0292433A2 Cationic compounds |
| 11/22/1988 | US4786532 Noncurling, nontoxic |
| 11/17/1988 | EP0291214A2 Information device |
| 11/15/1988 | US4785030 Cationic latex compositions capable of producing elastomers with hydrophilic surfaces |
| 11/09/1988 | EP0290384A2 Anionic disazo dyes |
| 11/08/1988 | US4783240 Pulp slurry, alumina polymer, and agglomerated particles of urea-formaldehyde resin and silicic acid |
| 11/08/1988 | CA1244422A1 Quinophthalone compounds, processes for producing them, and their use as dyes |
| 11/08/1988 | CA1244408A1 Monoazo compounds |
| 11/02/1988 | EP0289458A2 Anionic disazo dyes |
| 11/02/1988 | EP0289341A2 Pitch control aid |
| 11/01/1988 | US4781974 Bonded fibers and microbiocide |
| 10/26/1988 | EP0288291A2 Clay pigment slurry and its preparation |
| 10/26/1988 | CN88101863A Improvements in fibre reinforced plastics articles |
| 10/25/1988 | US4780518 Blend of carbohydrate and ammonium coordinating complex |
| 10/25/1988 | US4780180 Calcium silicate, aluminum hydroxide and cellulose fibers |
| 10/25/1988 | CA1243557A1 Safety means, paper and document against falsification by chemical agent |
| 10/18/1988 | US4778711 Paper for receiving toner images in electrophotography |