| Patents for D21H 17 - Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution (19,322) |
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| 01/07/1992 | CA2046251A1 Aqueous dispersions of urea/formaldehyde polymers and the use thereof |
| 01/02/1992 | DE4019798A1 Paper sizing agents with wide range of applications |
| 12/31/1991 | US5076889 Synthetic alkali metal alumino-silicates compositions and their methods of preparation |
| 12/31/1991 | US5076846 One step grinding and dispersion |
| 12/30/1991 | WO1992000413A1 Pressurized dynamic washer |
| 12/29/1991 | WO1992000417A1 Papermaking process and papermaking additive |
| 12/27/1991 | EP0462953A1 A process for the production of paper |
| 12/27/1991 | EP0462469A1 Paper-sizing agents |
| 12/27/1991 | EP0462365A1 Charged organic polymer microbeads in paper making process |
| 12/26/1991 | WO1991019686A1 Defined and delaminated kaolin product |
| 12/24/1991 | US5075368 Synthetic alkali metal aluminosilicates and use in paints |
| 12/24/1991 | US5074963 Mixing self-curing latex into fiber slurry |
| 12/24/1991 | US5074475 Method for improving bulk density and flowability of calcined kaolin clay products |
| 12/18/1991 | EP0462063A1 Fluorinated paper sizes |
| 12/18/1991 | EP0461768A1 Defined and delaminated kaolin product |
| 12/18/1991 | EP0461635A1 Polyvinyl alcohol resin soluble in high solids aqueous paper coating compositions without external heating |
| 12/17/1991 | US5073301 Bleaching with ozone and/or oxygen and treating with formamidi nnesulfinic acid during alkaline extraction |
| 12/17/1991 | CA1293239C Synthetic alkali metal alumino-silicates, compositions and their methods of preparation |
| 12/14/1991 | CA2044336A1 Fluorinated paper sizes |
| 12/14/1991 | CA2043986A1 Polyvinyl alcohol resin soluble in high solids aqueous paper coating compositions without external heating |
| 12/11/1991 | CN1015053B Method of manufacturing bonded particulate article by reacting polyol and heterocyclic compound |
| 12/10/1991 | US5071681 Water absorbent fiber web |
| 12/10/1991 | US5071675 No significant fiber agglomeration; uniformity; printing paper; milk carton top ply paper |
| 12/10/1991 | US5071512 Paper making using hectorite and cationic starch |
| 12/03/1991 | US5069893 Polymeric basic aluminum silicate-sulphate |
| 12/03/1991 | US5069754 Papermaking method |
| 11/21/1991 | EP0457235A1 Process for modifying hydrophilic fibers with substantially water-insoluble inorganic substance |
| 11/14/1991 | WO1991017306A1 Bleaching of chemical pulp |
| 11/14/1991 | WO1991017243A1 A cellulase preparation comprising an endoglucanase enzyme |
| 11/14/1991 | WO1991017128A1 High opacity defined kaolin product and method of producing same |
| 11/14/1991 | CA2080242A1 Bleaching of chemical pulp |
| 11/13/1991 | WO1991018148A1 Method of treating an aqueous suspension of a pigment, and a paper-manufacturing process |
| 11/13/1991 | EP0456363A2 High opacity defined kaolin product and method for producing same |
| 11/13/1991 | CA2064242A1 Process for the treatment of a pigment suspended in water and method of manufacturing paper |
| 11/12/1991 | US5064909 Vinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the same |
| 11/05/1991 | US5062922 Sizing paper with α-hydroxycarboxylic acid |
| 10/31/1991 | WO1991016402A1 Flame-proofing compositions |
| 10/31/1991 | WO1991016128A1 Dispersant used in the preparation of aqueous rosinous substance emulsion and aqueous rosinous substance emulsion |
| 10/30/1991 | EP0454104A1 Biodegradable sheet material and its application |
| 10/30/1991 | EP0453991A1 Method for sizing of paper |
| 10/29/1991 | US5061346 Papermaking using cationic starch and carboxymethyl cellulose or its additionally substituted derivatives |
| 10/29/1991 | US5061345 Method of making a multiple ply paper product containing an outer ply of reclaimed white office waste |
| 10/29/1991 | CA1291303C Method for increasing the stiffness of paper and paper resulting therefrom |
| 10/23/1991 | EP0453112A1 Microbicides immobilized in water-soluble thermoplastic polymeric resins and aqueous dispersions of microbicides prepared therefrom |
| 10/22/1991 | US5059282 Comprising cellulose fibers and a polysiloxane having pendant fuknctional groups; soft silky feel along with good tensil str ength |
| 10/18/1991 | CA2019325A1 Flame retardant compositions |
| 10/16/1991 | EP0451842A1 Pretreatment of filler with cationic ketene dimer |
| 10/16/1991 | EP0451554A1 Binders for nonwovens |
| 10/16/1991 | CN1014333B Filler compositions and their use in manfacturing fibrous sheet materials |
| 10/15/1991 | US5057570 Polyvinyl alcohol resin soluble in high solids aqueous paper coating compositions without exernal heating |
| 10/15/1991 | CA1290508C Production of paper and paperboard of high dry strength |
| 10/12/1991 | CA2040089A1 Pre-treatment of filler with cationic ketene dimer |
| 10/09/1991 | EP0450805A2 Process for coating metal oxide pigments and pigments obtained |
| 10/09/1991 | EP0450638A1 Chemical composition to produce water soluble curable films on fibrous surfaces and so treated glass fibers |
| 10/08/1991 | US5055354 Transparentized paper and method for its manufacture |
| 10/08/1991 | CA1290108C Process for the production of paper |
| 10/03/1991 | WO1991014822A1 A process using cellulase for improving drainage properties of pulp |
| 10/03/1991 | WO1991014741A1 Plastic pigment and production thereof |
| 10/02/1991 | EP0448946A2 Electrically conductive stannic oxide |
| 09/25/1991 | EP0448344A2 Multiple ply paperboard product and method of making the same |
| 09/25/1991 | EP0447792A1 Process for producing paper foam |
| 09/24/1991 | CA1289307C Reinforced polymer sheet |
| 09/21/1991 | CA2038638A1 Multiple ply paperboard product and method of making the same |
| 09/19/1991 | WO1991014046A1 Photographic reflection print material with improved keeping properties |
| 09/19/1991 | WO1991013926A1 Compounds containing polyether chains and quaternary ammonium groups |
| 09/19/1991 | WO1991013924A1 Water-soluble or water-dispersible compounds containing polyether chains and quaternary ammonium groups |
| 09/18/1991 | EP0447094A1 Rhombohedral calcium carbonate and accelerated heat-aging process for the production thereof |
| 09/17/1991 | US5049236 Lignin derived quinonic compound mixtures useful for the delignification of cellulosic materials |
| 09/17/1991 | US5048262 Paper impregnated with alkali metal salt |
| 09/17/1991 | CA1288907C Pitch control aid |
| 09/12/1991 | DE4007598A1 Wasserloesliche oder wasserdispergierbare verbindungen, enthaltend polyetherketten und quaternaere ammoniumgruppen Wasserloesliche or water-dispersible compounds containing polyether chains and quaternary ammonium groups |
| 09/12/1991 | DE4007597A1 Wasserloesliche oder wasserdispergierbare, polyetherketten und quaternaere ammoniumgruppen enthaltende verbindungen Wasserloesliche or water-dispersible, polyether chains, and quaternary ammonium group-containing compounds |
| 09/12/1991 | DE4007311A1 Polymer prepn. contg. N-vinyl:amine units - by hydrolysing poly-n-vinyl-formamide with acid or base, contg. stipulated amt. of water as powder in inert suspending agent |
| 09/11/1991 | EP0445953A1 Cationic polymer-modified filler material, process for its preparation and method for its use in papermaking |
| 09/11/1991 | EP0445952A1 Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper |
| 09/11/1991 | EP0445914A1 Carrier composition and method |
| 09/11/1991 | EP0445509A1 Multipurpose domestic paper |
| 09/11/1991 | EP0445192A1 Aqueous polyurethane and polyurethane carbamide dispersions, and a process for flock-coating moulded elastomeric products and for heat-sealing non-woven textile articles using these dispersions. |
| 09/10/1991 | US5047121 Continuous Papermaking From A Pulp Of Polyethylene And Polyvinyl Alcohol Fibers |
| 09/10/1991 | US5047120 Method for manufacture of lightweight frothed mineral wool panel |
| 09/10/1991 | US5046514 Smoking material and process for making same |
| 09/05/1991 | WO1991013207A1 POLY-β-HYDROXYALKANOATES FOR USE IN FIBRE CONSTRUCTS AND FILMS |
| 09/04/1991 | EP0444788A1 Treatment of coated broke |
| 09/04/1991 | EP0444509A2 Fluorurethan groups containing polymers of ethylenically unsaturated monomers, process for their preparation and their use |
| 09/04/1991 | EP0444343A1 Paper felts or mats and binders therefor |
| 09/03/1991 | US5045616 Disperson polymers which contain urea groups and are based on ethylenically unsaturated monomers, process for their preparation and their use |
| 09/03/1991 | US5045104 Bactericides, algicides, fungicides |
| 09/03/1991 | CA1288204C Procedure for manufacturing lignocellulosic material products |
| 08/29/1991 | DE4006044A1 Halide-doped tin (IV) oxide - used as electroconductive filler or pigment in e.g. plastics, lacquers, paints and paper, etc. |
| 08/28/1991 | EP0305433A4 Method for manufacturing a mineral panel |
| 08/28/1991 | EP0297132A4 Method for manufacture of lightweight frothed mineral wool panel |
| 08/28/1991 | EP0296233A4 Low density frothed mineral wool panel and method |
| 08/28/1991 | CA2036805A1 Fluorourethane group-containing polymers made from ethylenically unsaturated monomers, process for their preparation and their use |
| 08/27/1991 | US5043370 Polyalkylene imide of high brightness and retention characteristics and low toxicity and method of increasing paper whiteness |
| 08/27/1991 | US5043017 Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper |
| 08/26/1991 | CA2016848A1 Paper felts or mats |
| 08/21/1991 | EP0442746A1 Calcined kaolin clay filler pigment for paper |
| 08/21/1991 | EP0442185A1 Absorbent composite and method for production thereof |
| 08/21/1991 | CN1053936A Antiwear and anticorrosive material for paper sliding bearing |
| 08/20/1991 | CA1287945C Preparation of water-soluble copolymers containing vinylamine units, and their use as wet strength agents and dry strength agents for paper |