| 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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| 05/23/1984 | EP0109196A1 Machinable fibre boards |
| 05/23/1984 | EP0108842A1 Calcium carbonate dispersions |
| 05/22/1984 | US4450045 Preparation of water-soluble, nitrogen-containing condensates and their use in papermaking |
| 05/15/1984 | US4448722 Acid addition salts of copper phthalocyanine-used in dyeing cellulose |
| 05/15/1984 | US4448638 Internally delaminating fibers |
| 05/08/1984 | US4447294 Process for making absorbent tissue paper with high wet strength and low dry strength |
| 05/01/1984 | US4446204 Ferromagnetic garnet |
| 05/01/1984 | CA1166691A1 Method of checking the authenticity of papers |
| 05/01/1984 | CA1166565A1 Coating or packing material containing a product of the pyrethrinoid type |
| 04/25/1984 | EP0105969A1 Encoded security document |
| 04/24/1984 | US4445225 Encoding scheme for articles |
| 04/24/1984 | US4444959 Water-soluble benzylated polyamidoamines |
| 04/17/1984 | US4443371 Leather, paper |
| 04/17/1984 | US4443225 Liquid-crystalline phase of an azo reactive dyestuff, and its use for the dyeing and printing of natural and synthetic substrates |
| 04/10/1984 | US4442170 Security document with security features in the form of luminescing substances |
| 04/03/1984 | US4440898 And high molecular weight thermoplastic polymer |
| 04/03/1984 | CA1165034A1 Stable dispersion of fortified rosin |
| 03/28/1984 | EP0103739A2 Cationic dyestuffs, their preparation and their use |
| 03/28/1984 | EP0053125B1 Paper security with authenticity mark |
| 03/20/1984 | US4437935 A carrier web to support security device |
| 03/13/1984 | US4436867 Creping adhesives containing poly 2-ethyl-2-oxazoline |
| 03/07/1984 | EP0102335A1 A method for the production of fibre composite materials impregnated with resin |
| 03/06/1984 | US4435248 Process for producing photographic paper |
| 02/28/1984 | US4434269 Cationic sizing agent for paper and a process for the preparation thereof |
| 02/28/1984 | US4434267 Paper fillers and coatings |
| 02/22/1984 | EP0101203A2 Process for drying and consolidating a paper making web |
| 02/21/1984 | US4432900 Cationic dyestuff printing inks |
| 02/21/1984 | US4432149 Calender ironing machine with adjustable roll pressure |
| 02/16/1984 | WO1984000569A1 Fibrous media containing millimicron sized particulates |
| 02/14/1984 | US4431542 Filter and method of producing the same |
| 02/14/1984 | CA1162195A1 Dimethine dyestuffs, their preparation and their use for dyeing synthetic and natural materials |
| 02/01/1984 | EP0099586A2 Fibrous media containing millimicron-sized particulates |
| 01/25/1984 | EP0098971A2 Structural wallpaper with visible relief surface |
| 01/17/1984 | US4426205 Novel red dyes for fiberglass and paper |
| 01/10/1984 | CA1160385A1 Decay resistant sheet material with retained flexibility |
| 12/27/1983 | US4422969 Cationic styryl dyestuffs |
| 12/27/1983 | CA1159565A1 Sheet articles of non-conductive material marked for identification purposes, and method and apparatus for identifying such articles |
| 12/20/1983 | CA1159195A1 Fluorinated copolymers and their use in making substrates water and oil repellent |
| 12/06/1983 | US4419403 Cellulose sulfate, potassium ions |
| 12/06/1983 | CA1158044A1 Electrographic coatings containing acrylamide copolymers |
| 12/06/1983 | CA1158002A1 Process for obtaining coating compositions of improved whiteness |
| 11/30/1983 | EP0095308A1 Intumescent sheet material containing low density fillers |
| 11/22/1983 | US4416950 Coating with a dicyclopentenyl acrylate monomer and polymerizing |
| 11/22/1983 | US4416728 Self-extinguishing paper materials |
| 11/15/1983 | CA1157075A1 Sheet material carrying an unobtrusive image and method for its production |
| 11/08/1983 | US4414353 Organic pigments |
| 11/08/1983 | CA1156403A1 Stable aqueous formulations of stilbene fluorescent whitening agents |
| 10/25/1983 | US4411946 Impregnating paper with 7-hydroxy-coumarin compounds |
| 10/25/1983 | US4411669 Processes for dyeing paper, and agents containing azo dyestuffs |
| 10/19/1983 | EP0091529A1 Products for facings, insulation and packaging based on industrial wastes, and particularly paper sludge, and method for their manufacture |
| 10/12/1983 | EP0091341A1 Cellulosic materials made transparent and their application, process for their manufacture and the treating compositions |
| 10/05/1983 | EP0090556A1 Improvements in dimensionally stabilized paper |
| 10/05/1983 | EP0090130A1 Process for checking the authenticity of security documents, and distributing device for carrying out the process |
| 10/04/1983 | US4408156 Sheet articles of non-conductive material marked for identification purposes, and method and apparatus for identifying such articles |
| 10/04/1983 | CA1154563A1 Papermaking and products made thereby |
| 09/27/1983 | US4406737 Creping paper using cationic water soluble addition polymer |
| 09/20/1983 | US4405408 Cellulose processing agents and paper processed therewith |
| 09/20/1983 | CA1153851A1 Stable concentrated solution of a dye of the disazo class |
| 09/14/1983 | EP0088418A2 Quinophthalone compounds, process for their preparation and their use in the dyeing and printing of textile materials, paper, leather and for the preparation of inks |
| 09/13/1983 | US4404310 Graft polymers of unsaturated compound onto water soluble cationic polymers |
| 09/13/1983 | US4404306 Blends of water reducible organic materials and aqueous metal ammine siliconate solutions |
| 09/13/1983 | US4404196 Antimicrobial ointment |
| 09/06/1983 | US4403063 Organic pigments |
| 09/06/1983 | US4403062 Organic pigments |
| 09/06/1983 | US4402703 Crosslinking fiber-reactive dye |
| 08/30/1983 | US4401712 Antimicrobial non-woven fabric |
| 08/30/1983 | CA1152790A1 Laminated foam-creped paper product and method of production thereof |
| 08/23/1983 | US4400441 Electrographic coating containing aqueous emulsion copolymerized acrylamide copolymers |
| 08/23/1983 | US4400326 Aqueous metal ammine siliconate solutions, and amorphous materials derived therefrom, and methods of their use |
| 08/16/1983 | US4398915 Bleed resistant colored cellulosics and the method of their preparation |
| 08/09/1983 | US4397651 Polymeric dyes derived from bis-reactive methylene compounds and aromatic di-aldehydes for paper |
| 08/02/1983 | CA1151225A1 Security filament as protection against fraud |
| 08/02/1983 | CA1150908A1 Mineral filler |
| 07/27/1983 | EP0084463A1 Fire retarding organophosphate compositions |
| 07/27/1983 | EP0084372A2 Benzothiazole compounds, process for their preparation and their use as dyestuffs for textile materials, paper, leather and inks |
| 07/26/1983 | US4395332 Adsorption and filtration mat for liquids |
| 07/26/1983 | US4395274 Benzimidazolyl-alkyl-carbonates and a chlorinated phenolic compound |
| 07/19/1983 | US4394130 Cationic dyes |
| 07/19/1983 | CA1150262A1 Preparation of water-soluble condensates and their use as cross-linking agents for the preparation of papermaking aids |
| 07/19/1983 | CA1150259A1 Cationic compounds |
| 07/12/1983 | US4393005 Colorfast blue dyeing of paper |
| 07/05/1983 | CA1149157A1 Flow distributor for a liquid film discharging device |
| 06/22/1983 | EP0081737A2 Liquid crystalline phase of a reactive azo dyestuff and its use in dyeing and printing natural and synthetic substrates |
| 06/21/1983 | CA1148682A1 Cationically modified paper fiber-treating polyacrylamide resins |
| 06/14/1983 | US4388150 Complexing cationic starch and colloidal silica |
| 06/07/1983 | US4387112 Phosphors, activation |
| 06/07/1983 | US4386965 Acid phosphoric acid ester of oxyalkylated fatty amine |
| 06/07/1983 | CA1147618A1 Electroconductive coating formulations |
| 05/31/1983 | US4385961 Papermaking |
| 05/31/1983 | US4385954 Vacuum beneath applied foam, and more substantial vacuum beneath web |
| 05/24/1983 | US4385135 Intumescent sheet material containing low density fillers |
| 05/17/1983 | US4383858 Reaction product of phosphoric acid and alkylene oxide |
| 05/17/1983 | US4383834 Coloring of paper |
| 05/10/1983 | US4383143 Molded shells for luggage and the like |
| 05/03/1983 | CA1145508A1 Disposable article of improved color, composition and method for making same |
| 05/03/1983 | CA1145507A1 Concentrated aqueous solutions of sulfo group-containing fluorescent brighteners which are stable on storage |
| 04/27/1983 | EP0077347A1 Security documents. |
| 04/26/1983 | US4381320 Non-ionic absorbent polymers |
| 04/26/1983 | US4381185 Water-fast printing with water-soluble dyes |
| 04/19/1983 | US4380627 Triazine, cationic, thiazole dyes; colorfastness; textiles; paper; leather; yellow |