| 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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| 04/16/1997 | EP0768344A2 Paper coating pigments and their production and use |
| 04/16/1997 | EP0767852A1 Coating for paperboard |
| 04/16/1997 | EP0721531B1 Improvement in security features for paper |
| 04/16/1997 | EP0665915B1 Packaging materials |
| 04/16/1997 | EP0652808B1 Process for manufacturing paper webs containing cf or cb layers for pressure sensitive recording paper |
| 04/16/1997 | CN1147842A Process for applying a thin film containing low levels of a functional-polysiloxane and a nonfunctional-polysiloxane to tissue paper |
| 04/15/1997 | US5620565 Adding surfactant and enzymes to pulp slurry prior to dewatering, crumbing and mixing fibers with oil; waste paper recycling |
| 04/10/1997 | WO1997013033A1 Process for producing paper with a dry-strength and wet-strength finish |
| 04/10/1997 | DE19537088A1 Verfahren zur Herstellung von trockenfest und naßfest ausgerüstetem Papier Process for the preparation of dry and wet strength vessel equipped laid paper |
| 04/09/1997 | EP0767270A1 Pitch controlling agent and method for inhibiting pitch troubles |
| 04/09/1997 | EP0766678A1 Optical brightening agents |
| 04/09/1997 | EP0766677A1 S-triazinylaminostilbene derivatives and their use as optical whitening agents |
| 04/09/1997 | EP0766586A1 Aqueous fatty alcohol dispersions |
| 04/08/1997 | US5618861 Applying pitch retarding amount of cationic guar and polyethylene oxide to papermaking process |
| 04/08/1997 | US5618387 Adding surfactant to pulp aqueous slurry before a biodegradable, water-resistant agent; refining; adding alum as aggregating agent; forming hot-pressed paperboard |
| 04/02/1997 | EP0765421A1 Lotioned tissue paper |
| 04/02/1997 | EP0765420A1 Improved lotion composition for treating tissue paper |
| 04/02/1997 | EP0765418A1 Method for producing cellulose pulp and use of a compound in the method |
| 04/02/1997 | CN1146787A Paper opacifier |
| 04/02/1997 | CN1146404A Print paper and ink-injection print method using said paper |
| 04/01/1997 | US5616151 Acidification |
| 03/27/1997 | WO1997011223A2 Method of creping a paper |
| 03/26/1997 | EP0764739A2 Moisture-proof paper sheet |
| 03/26/1997 | EP0764661A2 Microemulsified functionalized polymers |
| 03/26/1997 | EP0696224B1 Aqueous anti-foaming agent dispersions |
| 03/26/1997 | CN1145967A Process for production of paper |
| 03/25/1997 | US5614616 Process for the production of polysaccharides |
| 03/25/1997 | US5614597 Wet strength resins having reduced levels of organic halogen by-products |
| 03/25/1997 | US5614293 Soft treated uncreped throughdried tissue |
| 03/25/1997 | US5614062 Process for controlling the sedimentation of sticky impurities from paper stock suspensions |
| 03/20/1997 | WO1997010387A1 Paper sizing polymeric enhancer, compositions, sized paper and method of use |
| 03/19/1997 | EP0763630A2 Curable resin transparentizing system for vellum papers |
| 03/19/1997 | EP0763628A1 Papermaking rosin emulsion size and method of paper sizing with the same |
| 03/19/1997 | EP0763548A2 Microemulsified functionalized polymers |
| 03/19/1997 | EP0763547A1 Microemulsified functionalized polymers |
| 03/19/1997 | EP0763074A1 Use of reduced interference pigments in producing forgery-proof security documents |
| 03/19/1997 | EP0763073A1 Wet strength resin composition and methods of making the same |
| 03/19/1997 | EP0656871B1 Aqueous suspensions of colloidal particles, preparation and use of the suspensions |
| 03/19/1997 | CN1145604A Security threads having at least two security detection features and security papers employing same |
| 03/19/1997 | CN1145429A 2-oxetanone sizing agents and their preparation and use |
| 03/19/1997 | CA2185604A1 Curable resin transparentizing system for vellum papers |
| 03/18/1997 | US5611939 Methods for inhibiting the production of slime in aqueous systems |
| 03/18/1997 | CA2078001C Security paper for bank notes and other documents |
| 03/13/1997 | DE19532908A1 Verfahren zum Kreppen von Papier A method for paper creping |
| 03/12/1997 | EP0761875A2 Titanium oxide-containing paper, corrugated board, and deodorizing element made therefrom |
| 03/12/1997 | EP0698141B1 Method of monitoring the deposition of "stickies" from paper-pulp suspensions |
| 03/06/1997 | WO1997008384A1 Methods and agents for improving paper printability and strength |
| 03/05/1997 | EP0760406A2 Combination of poly (dadmac/acrylamide) and bentonite for deposition control in papermaking processes |
| 03/05/1997 | EP0760342A1 Heat sealed, ovenable food cartons |
| 03/05/1997 | EP0688377A4 Persulfate mixtures for repulping wet strength paper |
| 03/05/1997 | EP0587692B1 Copying paper in sheet form |
| 03/04/1997 | US5607552 Silica-based anionic particles, smectite |
| 03/04/1997 | US5607550 Absorbent nonwoven fabric and its production |
| 03/04/1997 | US5607502 Dyestuffs for printing inks |
| 03/01/1997 | CA2182921A1 Heat sealed, ovenable food cartons |
| 02/27/1997 | WO1997007282A1 Methods and compositions for sizing paper |
| 02/27/1997 | WO1997007203A1 Methods and chemical compounds for modifying polymers |
| 02/27/1997 | WO1997006785A1 Surface-modified powders |
| 02/27/1997 | CA2229588A1 Methods and chemical compounds for modifying polymers |
| 02/27/1997 | CA2229358A1 Methods and compositions for sizing paper |
| 02/26/1997 | EP0708786B1 Method of eliminating impurities containing cyanide groups from polymers |
| 02/25/1997 | US5605568 High solids, low viscosity, long shelf life; papermaking |
| 02/25/1997 | CA2182559A1 Combination of poly(dadmac/acrylamide) and bentonite for deposition control in papermaking processes |
| 02/20/1997 | WO1997006307A1 Lotioned tissue paper containing a liquid polyol polyester emollient and an immobilizing agent |
| 02/20/1997 | WO1997006306A1 Lotioned tissue paper containing an emollient and a polyol polyester |
| 02/20/1997 | DE19529963A1 Cellulose@ insulation prodn. from waste paper |
| 02/20/1997 | CA2228261A1 Lotioned tissue paper containing a liquid polyol polyester emollient and an immobilizing agent |
| 02/19/1997 | EP0698142B1 Process for treating tissue paper with tri-component biodegradable softener composition |
| 02/18/1997 | US5603997 Including a hydrophobic zeolite to reduce transfer of undesirable taste or hazardous substances to contents |
| 02/18/1997 | US5603805 Silica sols and use of the sols |
| 02/18/1997 | CA1338917C Biocidal compositions for industrial materials |
| 02/13/1997 | WO1997005330A1 Synthetic cationic polymers as promoters for asa sizing |
| 02/13/1997 | WO1997000671A3 Composition for preparing finely dispersed systems and process for preparing the same |
| 02/13/1997 | CA2227605A1 Synthetic cationic polymers as promoters for asa sizing |
| 02/12/1997 | EP0757999A1 Process for obtaining polyamidoamine-epichlorhydrin resins with undetectable contents of dichloro-1,3-propanol-2 by standard vapour chromatography means |
| 02/12/1997 | CA2524814A1 Archival preservation coatings and adhesives |
| 02/11/1997 | US5602381 Wood pulp fibers and magnetic polymer fibers tangled together three-dimensional; security |
| 02/11/1997 | US5602209 Blend of polyethyleneimine and oxazoline polymer; imparts softness and bleaching resistance to cellulose web |
| 02/11/1997 | US5601921 Increasing liquid dispersion and fiber absorption |
| 02/11/1997 | US5601871 Soft treated uncreped throughdried tissue |
| 02/06/1997 | WO1997004173A1 Tissue products containing softeners and silicone glycol |
| 02/06/1997 | WO1997004171A1 Method for making soft tissue with improved bulk softness and surface softness |
| 02/06/1997 | WO1997004170A1 Tissue products with improved softness |
| 02/06/1997 | WO1997004168A1 Retention agent |
| 02/06/1997 | WO1997004166A1 Method of creping tissue webs containing a softener using a closed creping pocket |
| 02/06/1997 | WO1997004023A1 Dry strength resin compositions |
| 02/06/1997 | WO1997004014A1 Graft polymers from polymers containing vinyl ester and/or vinyl alcohol units and ethylenically unsaturated compounds, process for their production and their use |
| 02/06/1997 | DE19631381A1 Dressed cellulose material for paper with reduced discolouration |
| 02/06/1997 | CA2223810A1 Method for making soft tissue with improved bulk softness and surface softness |
| 02/06/1997 | CA2223807A1 Tissue products with improved softness |
| 02/05/1997 | EP0757083A2 Cationic thiazolazo and benzothiazolazo dyestuffs |
| 02/05/1997 | EP0756652A1 Improved paper formation |
| 02/05/1997 | EP0672213B1 Process for the preparation of a hydrophobic sizing agent dispersion |
| 02/05/1997 | CN1141984A Wrinkling stripping-agent |
| 02/04/1997 | CA2063927C Creping aid |
| 01/29/1997 | EP0755989A2 Coating slurry, and coating composition having an improved performance in intaglio printing |
| 01/29/1997 | EP0755468A1 Preparation process of paper for increasing filler contents and enhancing scott internal bond strength |
| 01/29/1997 | EP0558701B1 Process for improving retention during the manufacture of paper or board |
| 01/28/1997 | US5597612 Process for the manufacture of paper webs having CF or CB layers for pressure-sensitive recording |
| 01/28/1997 | US5597490 Flocculation |