| 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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| 07/31/1992 | CA2060105A1 Paper coatings |
| 07/29/1992 | EP0496218A2 Binder for pigment-printing of fibrous materials |
| 07/22/1992 | EP0495250A1 Cationic 1,3,4 thiadiazole dyes |
| 07/22/1992 | CN1017567B Secret paper for making paper currency and securities |
| 07/21/1992 | US5132445 5,5-bis (perfluoroalkylheteromethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinanes, and salts or esters thereof |
| 07/21/1992 | US5131981 Cationic Fixing Agent |
| 07/21/1992 | US5131910 Method of coloring or tinting paper: adding red, yellow and blue dyes in selected proportions to base furnish |
| 07/15/1992 | EP0494828A1 Safety document |
| 07/15/1992 | EP0494522A1 Anionic disazo dyes |
| 07/15/1992 | EP0494270A1 Water absorption bag |
| 07/14/1992 | US5130368 Polymers of alkyl esters of acrylic or methacrylic acids, acrylonitriles, mono- or di-carboxylic acids; paper |
| 07/14/1992 | US5130358 Cationic, anionic and nonionic surfactants for papermaking |
| 07/11/1992 | WO1992012293A1 Security paper for bank notes and other documents |
| 07/11/1992 | WO1992012292A1 Method for obtaining security paper and security paper obtained by such method |
| 07/11/1992 | CA2078002A1 Method for obtaining security paper and security paper obtained by such method |
| 07/08/1992 | EP0493757A2 Synthesis of high solids-content wet-strength resin |
| 07/08/1992 | EP0493726A1 Fibrous composition for making paper, paper and its use, and process for making the fibrous composition and the paper |
| 07/08/1992 | EP0493516A1 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. |
| 07/07/1992 | US5128454 Coupling |
| 07/07/1992 | US5128051 Method for the control of biofouling |
| 07/07/1992 | US5127994 Process for the production of paper |
| 07/01/1992 | EP0493231A1 Printable sheet, for making security documents including means against counterfeiting or for allowing authentification |
| 07/01/1992 | EP0493066A1 Pitch control |
| 07/01/1992 | EP0492407A1 Process for the accurate positioning of security elements |
| 07/01/1992 | EP0491879A1 Silica sols, a process for the production of silica sols and use of the sols. |
| 07/01/1992 | EP0491795A1 Encapsulated retainer for aqueous liquids, and process for its preparation |
| 06/30/1992 | US5126395 Catalytic emulsion polymerization of N-vinylamides, then acid or base hydrolysis, addition of antioxidants, reducing agents or aldehyde acceptors |
| 06/30/1992 | US5126014 Retention and drainage aid for alkaline fine papermaking process |
| 06/30/1992 | US5125996 Containing unexpanded synthetic thermoplastic polymer microspheres which expand in response to stimuli |
| 06/30/1992 | US5125930 Polymeric cationic dyes including a quaternized pyridinium group |
| 06/30/1992 | US5125929 Fluorescent paper strength enhancing resin |
| 06/30/1992 | CA2058541A1 Fibrous component for paper production, paper made therewith and use thereof and method for producing fibrous component and paper |
| 06/30/1992 | CA1304345C Antibiotic zeolite |
| 06/25/1992 | WO1992010609A1 Inorganic material slurry |
| 06/25/1992 | DE4041267A1 Application of security strip to paper - in which security element wound right side up on bobbin with mechanical non-twist feed to fourdrinier of paper-making machine |
| 06/25/1992 | CA2088515A1 Inorganic material slurry |
| 06/25/1992 | CA2058184A1 Pitch control |
| 06/23/1992 | US5124723 2-(2'-hydroxyphenyl) benzotriazoles |
| 06/23/1992 | US5123999 Forgery-proof security paper and aqueous or organic composition especially useful for rendering paper forgery-proof |
| 06/23/1992 | CA1303977C Grains-storing bag |
| 06/22/1992 | CA2058268A1 Method for applying security elements true to side |
| 06/17/1992 | EP0490825A1 Security paper for banknotes or the same, and method for their manufacture |
| 06/17/1992 | EP0490425A1 A process for the production of cellulose fibre containing products in sheet or web form |
| 06/17/1992 | EP0490412A2 Process for the working of foils in exact register |
| 06/17/1992 | EP0489897A1 The enhancement of fluorescent whitening agents |
| 06/17/1992 | EP0233943B1 An antimicrobially active, non-woven web used in a wet wiper |
| 06/17/1992 | DE4039825A1 New sulpho-bi:phenylyl sulpho-phenyl indene dyestuff cpds. - used as fluorescent dyestuff, whitener esp. for paper or laser dyestuff |
| 06/17/1992 | CN1062014A Pre-treating adhesive of metallized paper and usage thereof |
| 06/16/1992 | US5122577 Polycationic esterified latex precursors having polymerizable unsaturated substituent groups |
| 06/16/1992 | US5122568 Solution polymerization in an alcohol/water at reflux temperature using a free-radical catalyst added portion-wise; concurrent neutralization and desolventizing |
| 06/16/1992 | CA1303765C Sizing agents for paper based on finely divided aqueous dispersions |
| 06/16/1992 | CA1303609C Polysaccharide esters containing acetal and aldehyde groups |
| 06/16/1992 | CA1303437C Hollow polymer particles, process for production thereof, and use thereof as pigment |
| 06/11/1992 | WO1992009746A1 Paper coating |
| 06/11/1992 | WO1992009745A1 Paper and a method of paper manufacture |
| 06/11/1992 | WO1992007141A3 Paper, paperboard and cardboard internal sizing process |
| 06/11/1992 | CA2088375A1 Paper coating |
| 06/10/1992 | CN1061821A Universal processing card |
| 06/09/1992 | US5120773 Amine-epichlorohydrin resin,water and polyol |
| 06/09/1992 | US5120581 Using organosilicon compound |
| 06/09/1992 | US5120522 Process for preparing basic aluminum compounds |
| 06/09/1992 | US5120521 Introducing carbon dioxide into colored aqueous slurry of calcium hydroxide and watersoluble dye |
| 06/05/1992 | WO1992010608A1 Security articles |
| 06/05/1992 | CA2096649A1 Security articles |
| 06/03/1992 | EP0488902A1 Security document including a security element having photochromic properties |
| 06/03/1992 | EP0488767A2 Process for making epichlorohydrin resins |
| 06/03/1992 | EP0488343A1 Fluorescent paper strength enhancing resin |
| 06/02/1992 | US5118526 Method of producing a simulated watermark |
| 06/02/1992 | US5118349 Security markings, material provided with security marks, and apparatus to detect the security mark |
| 06/02/1992 | CA1302646C Vesiculated polymer granules |
| 06/02/1992 | CA1302022C Coloring paper |
| 06/02/1992 | CA1302021C Making paper, board and cardboard of high dry strength |
| 05/27/1992 | EP0487497A1 Process for diminishing permeability to steam |
| 05/27/1992 | CN1016792B Sizing composition, method for preparation thereof and method of use |
| 05/26/1992 | US5116924 Paper sizing agents containing cationic dispersants |
| 05/26/1992 | US5116887 Wet strength resin composition and method of making same |
| 05/20/1992 | EP0486213A1 Paper having crossdirectional regions of variable basis weight |
| 05/20/1992 | EP0486080A2 Expandable thermoplastic microspheres and a method for the production and use thereof |
| 05/20/1992 | EP0486065A1 Security paper and process for making the same |
| 05/19/1992 | US5114782 Processed paper for documents protected from being reproduced |
| 05/19/1992 | US5114539 Water removal by replacement with liquid hydrocarbon; pressing |
| 05/19/1992 | US5114538 Process for sizing paper and similar products |
| 05/19/1992 | US5114430 Colorfast dyes that react with fibers to form red, orange or red color |
| 05/19/1992 | CA1301182C Aluminum zirconium metallo-organic complexes useful as coupling agents and hydrophobic agents |
| 05/19/1992 | CA1300953C2 Apparatus for forming a watermarklike pattern on a web |
| 05/14/1992 | WO1992007465A1 Microbiocidal combinations of materials and their use |
| 05/13/1992 | EP0484617A1 Cross-linked anionic and amphoteric polymeric microparticles |
| 05/13/1992 | EP0484462A1 Process for treating a porous substrate to achieve improved water and oil repellency. |
| 05/13/1992 | EP0484398A1 Cell wall loading of never-dried pulp fibers. |
| 05/12/1992 | US5112672 Security document having an electrically conductive security element embedded therein |
| 05/06/1992 | CN1060773A Flavor release material |
| 05/05/1992 | US5110883 Chain transfer agent to prevent crosslinking |
| 04/30/1992 | WO1992007141A2 Paper, paperboard and cardboard internal sizing process |
| 04/29/1992 | EP0482587A1 Flavor release material and method of manufacturing same |
| 04/29/1992 | EP0482508A1 Biscationic azo dyes and their intermediates |
| 04/23/1992 | CA2044078A1 Flavor release material |
| 04/22/1992 | EP0480952A1 Document security method and system. |
| 04/21/1992 | US5106600 Process for producing tabular acicular gypsum crystals |
| 04/21/1992 | US5106420 Water soluble dye fixed onto mineral pigment by ionic fixative |
| 04/16/1992 | DE4032660A1 Verfahren zur masseleimung von papier, pappe und karton A method for sizing of paper, paperboard and cardboard |