| 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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| 01/28/1997 | US5597448 Adding to pulp slurry of papermaking systems |
| 01/23/1997 | DE19629238A1 Fast basic 1-amino-alk(en)yl-2-hydroxy-6-pyridone dis:azo dyes bleached by redn. |
| 01/23/1997 | DE19526626A1 Pfropfpolymerisate aus Vinylester- und/oder Vinylalkohol-Einheiten enthaltenden Polymerisaten und ethylenisch ungesättigten Verbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung Graft polymers of vinyl ester and / or ethylenically unsaturated compounds and polymers containing vinyl alcohol units, processes for their preparation and their use |
| 01/22/1997 | EP0754667A2 Mixed hydroxyethers obtained by ring opening of epoxydes of esters of unsaturated fatty acids wiht polyglycolethers as well as their use as biodegradable antifoaming agent |
| 01/22/1997 | EP0754260A1 Web printing paper coated on both sides and process for its manufacture |
| 01/22/1997 | EP0754126A1 Security threads having at least two security detection features and security papers employing same |
| 01/21/1997 | US5595631 Dispersion of emulsions for sizing in paper webs with anhydride cationic sizing and drying |
| 01/15/1997 | EP0753623A2 Security sheet, particularly of the type that includes an electrically conducting element |
| 01/15/1997 | EP0752989A1 Thiazolylpyrazolinones and their use for protecting technical materials |
| 01/15/1997 | CN1033826C Pitch control |
| 01/14/1997 | US5593483 Fluoropolymers, silanes, siloxanes |
| 01/14/1997 | CA2081082C Sized paper, process for producing same and use thereof |
| 01/14/1997 | CA2065016C The enhancement of fluorescent whitening agents |
| 01/12/1997 | CA2180971A1 Process for preparing polyamidoamine-epichlorohydrin containing 1,3-dichloropropan-2-ol levels undetectable by vapor phase chromatography conventional means |
| 01/09/1997 | WO1997000999A1 Method for waterproofing a cellulose-based medium |
| 01/09/1997 | WO1997000671A2 Composition for preparing finely dispersed systems and process for preparing the same |
| 01/08/1997 | EP0752496A2 A process for the production of paper |
| 01/08/1997 | CN1033765C Method for mfg. bank-note paper with banana fiber |
| 01/07/1997 | USH1629 Wet strength of paper; allylated, quaternized polymer from diamine, diacid and urea |
| 01/07/1997 | US5591489 Process for surface sizing paper or paperboard |
| 01/07/1997 | US5591306 Method for making soft tissue using cationic silicones |
| 01/06/1997 | CA2154387A1 Antifoam compositions for aqueous systems |
| 01/03/1997 | WO1997000354A1 Process for preparing reduced odor and improved brightness individualized, polycarboxylic acid crosslinked fibers |
| 01/02/1997 | EP0750701A1 Paper opacifier |
| 01/02/1997 | DE19522693A1 Zusammensetzung zur Herstellung feindisperser Systeme und Verfahren zu ihrer Herstellung A composition for preparing a finely dispersed systems and methods for their preparation |
| 01/01/1997 | CN1139468A Multi-ply facial tissue paper product comprising biodegradable chemical softening compositions and binder materials |
| 01/01/1997 | CN1139121A Process for preparing dry strength additive for paper and use thereof |
| 12/31/1996 | US5589075 Use of silicon containing polyelectrolytes in wastewater treatment |
| 12/31/1996 | US5589034 Polymer-reinforced paper having improved cross-direction tear |
| 12/27/1996 | EP0750069A1 Agents for sizing paper, paperboard and cardboard and their use |
| 12/27/1996 | EP0749509A1 Process for applying a thin film containing low levels of a functional-polysiloxane and a nonfunctional-polysiloxane to tissue paper |
| 12/27/1996 | EP0749508A1 Improved paper making process |
| 12/27/1996 | EP0749473A1 Novel alkaline cellulases |
| 12/27/1996 | EP0689473B1 Anti-foaming agent for the food, varnish and paper industries |
| 12/25/1996 | CN1138646A Additive for papermaking and process for papermaking |
| 12/24/1996 | US5587011 Optically whitened clay pigments |
| 12/24/1996 | CA2038009C Rhombohedral calcium carbonate and accelerated heat-aging process for the production therof |
| 12/19/1996 | WO1996040967A1 Dehalogenation of polyamine, neutral curing wet strength resins |
| 12/19/1996 | WO1996039842A1 Moist bacteriocin disinfectant wipes and methods of using the same |
| 12/18/1996 | EP0748897A2 A process for the production of paper |
| 12/18/1996 | EP0748896A1 Security document and process for production thereof |
| 12/18/1996 | EP0721436A4 Stabilized, high solids, low viscosity smectite slurries, and method of preparation |
| 12/18/1996 | CN1138356A Multi-ply facial tissue paper product comprising chemical softening compositions and binder material |
| 12/17/1996 | US5585456 Polymer prepared from polyamine, polycarboxylic acid or ester, dianhydride and epichlorohydrin |
| 12/17/1996 | US5584966 Paper formation |
| 12/11/1996 | EP0747531A2 Resins blends for paper impregnation |
| 12/11/1996 | EP0747342A1 Unsaturated hemiesters of alkyl succinic acid, polymers therefrom and use of said polymers |
| 12/11/1996 | EP0746423A1 Repulpable hot melt polymer/wax compositions for fibrous products |
| 12/11/1996 | EP0609252B1 Method for making sheet materials and security paper |
| 12/10/1996 | US5583193 Precipitating by copolymerizing with polyoxyethylene glycol or treating with a silicates |
| 12/10/1996 | US5582103 Method for making an anti-counterfeit latent image formation object for bills, credit cards, etc. |
| 12/05/1996 | WO1996038630A1 Printing and writing substrate preventing backlight reading and method for making same |
| 12/05/1996 | WO1996038296A1 Corrugated board manufacturing system and method |
| 12/04/1996 | EP0745160A1 Densifying agents for enhancing fiber densification |
| 12/04/1996 | CN1137085A Modifier for quality of paper surface |
| 12/04/1996 | CN1033447C New polyaluminumchlorosulfates and preparation and use thereof |
| 12/03/1996 | US5580964 Cationic thiadiazole dyestuffs |
| 12/03/1996 | US5580566 Preserved polysiloxane emulsions for treating tissues |
| 11/28/1996 | WO1996037870A1 Security label |
| 11/28/1996 | WO1996037656A1 Security paper |
| 11/27/1996 | EP0744417A1 Process for producing multicomponent styrene/(meth)acrylate copolymer |
| 11/26/1996 | US5578678 Graft polymers of natural substances containing saccharide structures or derivatives thereof and ethylenically unsaturated compounds and their use |
| 11/26/1996 | US5578168 Aqueous suspensions of poly(ethylene oxide) useful as retention aids in paper manufacture |
| 11/21/1996 | WO1996036768A1 Chemically softened tissue paper products containing a polysiloxane and an ester-functional ammonium compound |
| 11/21/1996 | WO1996036569A1 Use of mannanases as slime control agents |
| 11/21/1996 | WO1996036432A1 Post-treatment process and product |
| 11/21/1996 | CA2215635A1 Use of mannanases as slime control agents |
| 11/20/1996 | EP0743394A2 Method of paper sizing using modified cationic starch |
| 11/20/1996 | EP0743172A1 Novel creping adhesive formulations, method of creping and creped fibrous web |
| 11/20/1996 | EP0742858A1 Method for manufacturing paper in a foam medium using a non-ionic surfactant |
| 11/19/1996 | US5575893 Felt conditioner for deinked recycled newsprint papermaking system |
| 11/19/1996 | US5575891 Soft tissue paper containing an oil and a polyhydroxy compound |
| 11/19/1996 | CA2551236A1 Crosslinkable creping adhesive formulations |
| 11/18/1996 | CA2176875A1 Method of paper sizing using modified cationic starch |
| 11/14/1996 | WO1996035841A1 Sizing dispersions |
| 11/14/1996 | WO1996035738A1 Method of producing cross-linked cationic polymers |
| 11/14/1996 | WO1996035731A1 Dadmac/vinyl trialkoxysilane copolymers and their use in wastewater treatment |
| 11/14/1996 | WO1996035586A1 Articles employing a magnetic security feature |
| 11/14/1996 | DE19517047A1 Verfahren zur Herstellung vernetzter Kationpolymere A process for the production of crosslinked cationic polymers |
| 11/14/1996 | CA2194295A1 Dadmac/vinyl trialkoxysilane copolymers and their use in wastewater treatment |
| 11/13/1996 | EP0742317A1 Method for inhibiting microbial growth in paper process systems |
| 11/13/1996 | EP0742315A1 2-Oxetanone sizing agents and their preparation and use |
| 11/12/1996 | US5573641 Method for preventing microbial deposits in the wet end of papermachines using ethylene oxide/propylene oxide copolymer |
| 11/12/1996 | US5573639 Antifalsification paper having a thread- or band-shaped security element |
| 11/12/1996 | US5573637 Tissue paper product comprising a quaternary ammonium compound, a polysiloxane compound and binder materials |
| 11/11/1996 | CA2176078A1 Method of using an alkali metal salt of dichloroisocyanurate (anhydrous) and an alkali bromide in paper process systems |
| 11/11/1996 | CA2176077A1 Method of using trichloroisocyanuric acid and an alkali bromide in paper process systems |
| 11/07/1996 | WO1996035019A1 Process for producing structurally resistant paper |
| 11/07/1996 | WO1996034913A1 Pitch control composition and process for inhibiting pitch deposition |
| 11/07/1996 | WO1996034903A1 Graft polymers made of alkylene oxide units-containing polymers and ethylenically unsaturated compounds, process for preparing the same and their use |
| 11/07/1996 | WO1996034699A1 Process for surface sizing paper or paperboard |
| 11/07/1996 | WO1996034684A1 Elimination of waste materials in paper production |
| 11/07/1996 | DE19516405A1 Verfahren zur Herstellung strukturfester Papiere Process for the preparation of structurally strong papers |
| 11/07/1996 | DE19515943A1 Pfropfpolymerisate aus Alkylenoxideinheiten enthaltenden Polymerisaten und ethylenisch ungesättigten Verbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung Graft polymers of alkylene oxide and polymers containing ethylenically unsaturated compounds, processes for their preparation and their use |
| 11/07/1996 | CA2219998A1 Process for producing structurally resistant paper |
| 11/07/1996 | CA2193839A1 Elimination of waste materials in paper production |
| 11/06/1996 | EP0741113A1 Process for eliminating impurities in the circulation water of paper machines |
| 11/06/1996 | EP0740686A1 Papermaking compositions, process using same, and paper produced therefrom |
| 11/06/1996 | CN1135001A Process of manufacture for coloured fibre material, containing ceratain proportion of cellulose fibres |
| 11/05/1996 | US5571494 Temperature-activated polysilicic acids |