Patents
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)
05/1996
05/14/1996US5516405 Improving first pass filler retention of a papermaking pulp slurry
05/09/1996WO1996013525A1 Cationic modification process for starch and use of cationically modified starch
05/08/1996EP0677125B1 Aqueous compositions for sizing of paper
05/08/1996CN1031763C Mouldproof rub-preventing packaging paper for sheet glass and its making method
05/07/1996US5514429 Cylindrical composite paperboard cushion core and process for producing same
05/07/1996US5514249 Papermaking with water solution of anionic cellulose, shearing, aggregation, drainage to form sheets, circulation of white water and drying sheets
05/04/1996CA2161947A1 Cationic imidazole azo dyes
05/02/1996DE4438708A1 Verfahren zur kationischen Modifizierung von Stärke und Verwendung der kationisch modifizierten Stärke Method for the cationic modification of starch and use of the cationic modified starch
05/01/1996EP0709440A2 Dyes for printing inks
05/01/1996EP0709226A1 Coating formulations for thermal papers
05/01/1996EP0708860A1 Multi-layered tissue paper web comprising chemical softening compositions and binder materials and process for making the same
05/01/1996EP0708786A1 Method of eliminating impurities containing cyanide groups from polymers
04/1996
04/30/1996US5512135 Process for the production of paper
04/25/1996WO1996011882A1 Hydantoin-enhanced halogen efficacy in pulp and paper applications
04/24/1996EP0707673A1 Production of paper
04/24/1996EP0707671A1 Process for removing metal ions from liquids
04/24/1996EP0625224B1 Image carrier for a reprographic image
04/23/1996US5510439 Water soluble surfactant comprised vinyl trialkoxysilane monomer and a monomer having ammonium groups; papermaking
04/23/1996US5510004 Using polymers and copolymers of n,n-diallyl-3-hydroxyazetidinium salts which have a reduced level of organohalide by-products
04/23/1996US5510003 Method of sizing and aqueous sizing dispersion
04/23/1996US5510000 Quaternary ammonium salt softening compound
04/23/1996US5509691 Security element in the form of threads or strips to be embedded in security documents and a method for producing and testing the same
04/18/1996WO1996011262A1 An enzyme and enzyme preparation with endoglucanase activity
04/18/1996WO1996011193A1 Alkenyl substituted cyclic carboxyl acid anhydrides and their application in hydrophobic paper sizing
04/18/1996DE4436317A1 Prodn. of paper with improved screen draining and retention
04/18/1996CA2201869A1 Alkenyl substituted cyclic carboxyl acid anhydrides and their application in hydrophobic paper sizing
04/17/1996EP0707113A1 Process for making dry- and/or wet-resistant cellulose webs
04/17/1996EP0707112A1 Improving the quality of coated paper
04/17/1996EP0707111A1 Alkenylsuccinic acid emulsion sizing agent (2)
04/17/1996EP0707110A1 Alkenylsuccinic acid emulsion sizing agent (1)
04/17/1996EP0706591A1 Multi-layered tissue paper web comprising biodegradable chemical softening compositions and binder materials and process for making the same
04/15/1996CA2159130A1 Improving the quality of coated paper
04/11/1996CA2160088A1 Process for the production of cellulose-containing sheet-like structures which have been given a dry strength and/or wet strength treatment
04/10/1996EP0705710A1 Coated paper and methods for its preparation
04/10/1996EP0705368A1 Reduction of openness of materials
04/10/1996EP0705367A1 A method of producing visible, continuous streaks and/or delimited fields in paper
04/10/1996EP0705366A1 Method of monitoring the deposition of resins from cellulose and/or paper-pulp suspensions
04/04/1996DE19536797A1 Aufzeichnungsmaterial, Verfahren zur Herstellung desselben und Verfahren zum Recyceln von Aufzeichnungsmaterial Recording material, methods for producing the same and method of recycling said recording material
04/03/1996EP0704007A1 Non-polluting process for increasing the wet strength of paper
04/03/1996EP0480952B1 Document security method and system
04/02/1996US5504096 Biocidal compositions for industrial materials
04/02/1996US5503714 Polyisocyanates having tertiary amino or ammonium groups; wet and dry strength
03/1996
03/28/1996WO1996009437A1 Paper products containing a vegetable oil based chemical softening composition
03/28/1996WO1996009436A1 Paper products containing a biodegradable vegetable oil based chemical softening composition
03/28/1996WO1996009435A1 Wet-resilient webs
03/28/1996WO1996009345A1 Use of zirconium salts to improve the surface sizing efficiency in paper making
03/28/1996DE19535831A1 Laminiertes Transparentpapier Laminated Transparent Paper
03/27/1996EP0703315A2 Method for improving the optical properties of paper
03/27/1996EP0703193A2 Rhombohedral calcium carbonate
03/27/1996EP0702737A1 Treatment of cellulosic materials
03/27/1996EP0702736A1 Waterless self-emulsifiable biodegradable chemical softening composition useful in fibrous cellulosic materials
03/27/1996EP0670926B1 Papermaking process
03/27/1996CN1031386C Security articles
03/26/1996US5502251 Mold release agents, paints and lacquers for levelling and adhesion
03/26/1996US5502205 Dyes for photographic elements as filter dyes, antihalation dyes for images, printing inks or textiles
03/26/1996US5502091 Enhancement of paper dry strength by anionic and cationic guar combination
03/26/1996US5501774 Production of filled paper
03/26/1996US5501733 Rare earth metal sulfide pigments comprising fluorine values
03/24/1996CA2148055A1 Agents having high nitrogen content and high cationic charge based on dicyanimide, dicyandiamide or guanidine and inorganic ammonium salts
03/22/1996CA2141181A1 Wet-resilient webs
03/21/1996WO1996008601A1 Tissue paper treating agent, process for producing tissue paper by using said treating agent and its use
03/21/1996WO1996008528A1 Repulpable wet strength resins for paper and paperboard
03/21/1996WO1996008522A1 Process for producing multicomponent styrene/(meth)acrylate copolymer
03/21/1996CA2200049A1 Tissue paper treating agent, process for producing tissue paper by using said treating agent and its use
03/20/1996EP0701640A1 Waterless self-emulsifiable chemical softening composition useful in fibrous cellulosic materials
03/20/1996EP0662172B1 Defoaming agent for the paper industry based on oil in water emulsions
03/20/1996EP0542980B1 Readily biodegradable anti-foaming agent for aqueous systems
03/19/1996US5500213 Gelled biocidal treatments
03/14/1996WO1996007698A1 Modified opacifying composition for paper
03/13/1996EP0701020A2 Oil and water-repellent papers, process for making the same, and new fluorine-containing copolymers for making the same
03/13/1996EP0701019A1 Amphoteric sizing agent for papier acid production process thereof
03/13/1996EP0700473A1 Process for producing paper
03/13/1996EP0663031B1 Methods of dyeing paper
03/13/1996CA2150891A1 Treatment for improving cellulosic insulation
03/12/1996US5498701 Basic disazo compounds containing sulphonic acid groups
03/12/1996US5498648 Paper size mixtures
03/12/1996US5498315 Cellulose fibers in a slurry with reaction product of dimer acid with alkanol amine for paper
03/12/1996US5498314 Slurrying cellulose pulp, drainage and drying to form webs
03/12/1996CA1338134C Transparent coatings for graphics application
03/06/1996CN1118028A Paper products containing a chemical softening composition
03/06/1996CN1031210C Material for preparation of slurry moulded container and technology thereof
03/05/1996US5496440 Process for the manufacture of paper
03/05/1996US5496378 Imidazolymethylated copper phthalocyanine dyes
02/1996
02/29/1996WO1996006119A1 Paper-sizing agents containing aqueous, solvent-free dispersions of cationic polymers and method of preparing sized paper by using these agents
02/29/1996DE4430069A1 Wäßrige, lösungsmittelfreie Dispersionen von kationischen Polymerisaten enthaltende Papierleimungsmittel und Verfahren zur Herstellung von geleimtem Papier unter Verwendung dieser Mittel An aqueous, solvent-free dispersions of paper sizing agents containing cationic polymers and methods for production of sized paper by using these agents
02/29/1996CA2194602A1 Paper-sizing agents containing aqueous, solvent-free dispersions of cationic polymers and method of preparing sized paper by using these agents
02/28/1996EP0698499A1 Recording medium, ink-jet recording method using the same, and dispersion of alumina hydrate
02/28/1996EP0698142A1 Process for treating tissue paper with tri-component biodegradable softener composition
02/28/1996EP0698141A1 Method of monitoring the deposition of "stickies" from paper-pulp suspensions
02/28/1996EP0698140A1 Tissue paper treated with tri-component biodegradable softener composition
02/28/1996EP0697832A1 Toilet seat cover
02/27/1996US5495003 2,2'-disulfo-4,4'-substituted triazinylaminophenyl disazostilbenes
02/27/1996US5494731 Tissue paper treated with nonionic softeners that are biodegradable
02/27/1996US5494555 Adding to cellulose fiber pulp slurry surfactant, reaction product of fatty acid, diamine, glyoxal, forming paper
02/27/1996US5494554 Method for making soft layered tissues
02/22/1996WO1996005372A1 Method for making soft tissue using cationic silicones
02/22/1996WO1996005139A1 Synthetic mineral microparticles for retention aid systems
02/22/1996DE19527773A1 Dewatering/retention aid for paper and cardboard prodn.
02/22/1996CA2197301A1 Synthetic mineral microparticles for retention aid systems
02/20/1996US5493011 Monoazo or disazo pigments based on (benoxazol-2-yl)- or (benzimidazol-2-yl)-arylacetamides