| Patents for D21H 17 - Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution (19,322) |
|---|
| 08/20/1991 | CA1287706C Invert size for the pulp sizing and surface sizing of paper |
| 08/15/1991 | CA2035117A1 Calcined kaolin clay filler pigment for enhancing opacity and printing properties of newsprint and mechanical papers |
| 08/13/1991 | US5039787 Method for production of cationic water-soluble resin and water-treating agent containing said resin based on imine modified polyethylene glycol halohydrin ethers |
| 08/13/1991 | CA1287572C Antimicrobial composition containing isothiazolone |
| 08/13/1991 | CA1287453C Production of paper, board and cardboard |
| 08/13/1991 | CA1287452C Ethylene vinyl acetate compositions for paper saturation |
| 08/07/1991 | EP0440419A1 Composite kaolin pigment for paper |
| 08/06/1991 | US5037927 Modified n-vinylformamide copolymer having reduced viscosity |
| 08/06/1991 | US5037863 Polymerizing unsaturated monomers in a mixture of water, oil and surfactant to form an inverse or microemulsion and functionalizing |
| 08/06/1991 | US5037508 Aluminum chlorohydrate or hydrotalcite treated kaolin clays for pitch control |
| 08/06/1991 | US5037477 Heating alkaline slurry of calcium carbonate particle, zinc compound and silica containing substance |
| 08/03/1991 | CA2035515A1 Carrier composition and method |
| 07/31/1991 | EP0439363A1 Treated papers |
| 07/31/1991 | EP0438755A1 Paper and board-paper making process from paper materials containing perturbating compounds |
| 07/31/1991 | EP0438707A1 Process for making paper and board |
| 07/31/1991 | CN1053464A Compounding method of fine filter paper board raw material |
| 07/30/1991 | US5035873 Synthetic alkali metal alumino-silicates compositions and their methods of preparation |
| 07/25/1991 | WO1991009067A3 Dispersion and/or grinding agent for aqueous mineral suspensions with a zeta potential close to zero, aqueous suspensions containing same, and applications |
| 07/24/1991 | EP0438380A1 Polymerized quaternary diallylammonium compounds |
| 07/24/1991 | EP0437816A1 Superabsorbent wet-lay nonwoven product |
| 07/24/1991 | EP0437764A1 Stable aqueous emulsions of alkyl-keten dimer |
| 07/23/1991 | WO1991010776A1 Reducing foaming in paper manufacture |
| 07/23/1991 | US5034097 Paper treated with the epoxidized resin to increase wet strength |
| 07/23/1991 | US5034062 Use of acid-containing anionic emulsion copolymers as calcined clay slurry stabilizers |
| 07/23/1991 | CA2074066A1 Reducing foaming in paper manufacture |
| 07/19/1991 | CA2034355A1 Stabilized aqueous alkyldiketene emulsions |
| 07/18/1991 | DE4001045A1 Paper, paste-board and cardboard prodn. - by draining pulp contg. retention agent and as fixing agent, min. 60 per cent-hydrolysed homo- or copolymer of N-vinyl-formamide |
| 07/17/1991 | EP0436649A1 Base composition for the fabrication of a flexible and porous sheet product consisting basically of elastomer powder, sheet product and preparation method. |
| 07/17/1991 | CA2033365A1 Superabsorbent wet-lay nonwoven product |
| 07/16/1991 | US5032683 Glyoxal modified aqueous starch dispersion and method |
| 07/16/1991 | US5032337 Procedure for the manufacture of a mixture of starch and polyvinyl alcohol and thus manufactured mixture |
| 07/16/1991 | US5032227 Production of paper or paperboard |
| 07/16/1991 | US5032226 Base paper for photographic layer support |
| 07/16/1991 | US5032225 Thermosensitive |
| 07/16/1991 | CA1286061C High bulk calendered paper containing vesiculated beads |
| 07/10/1991 | EP0296242A4 Low density mineral wool panel and method |
| 07/09/1991 | US5030678 Cationic surface sizing emulsion |
| 07/09/1991 | US5030284 Binders |
| 07/09/1991 | CA1285713C Filler compositions and their use in manufacturing fibrous sheet materials |
| 07/04/1991 | DE4018766A1 Solns. of melamine-urea-formaldehyde resins - with low viscosity are prepd. partic. for decorative laminate prodn. |
| 07/03/1991 | EP0317576A4 Composite materials and method of preparation |
| 07/02/1991 | US5028300 Cutting side edges with a water jet |
| 07/02/1991 | US5028268 Method for improving the rheology of calcined kaolin clay products |
| 06/27/1991 | DE3942466A1 Soluble crosslinkable poly:amine(s) for finishing of paper - by reaction of isocyanate-sulphonate(s) with poly:amine(s) contg. prim. and/or sec. amino Gps. |
| 06/26/1991 | EP0434387A2 Emulsion polymerisation |
| 06/25/1991 | US5026457 Process for sizing in the production of paper, cardboard, paperboard and other cellulose containing materials |
| 06/23/1991 | CA2032749A1 Emulsion polymerisation |
| 06/21/1991 | WO1991009067A2 Dispersion and/or grinding agent for aqueous mineral suspensions with a zeta potential close to zero, aqueous suspensions containing same, and applications |
| 06/21/1991 | CA2070636A1 Dispersing and/or grinding agent for mineral aqueous suspensions with a zeta potential near zero; aqueous suspensions containing said agent and their uses |
| 06/19/1991 | EP0433258A1 Procedure for the production of pulp |
| 06/19/1991 | EP0432838A1 Ketene dimer paper sizing agents modified by nonreactive hydrophobes |
| 06/18/1991 | US5025077 Composition for gluing discontinuous mineral fibers in order to obtain insulation products |
| 06/18/1991 | US5025046 Creping adhesive composition |
| 06/18/1991 | CA1284933C Testing polyelectrolytes |
| 06/13/1991 | WO1991008337A1 A process for the preparation of cooking liquors having high sulphidity for sulphate pulp cooking |
| 06/13/1991 | WO1991008237A1 Polymeric stabilisers for emulsion polymerisation |
| 06/13/1991 | WO1991008235A1 Production of stable polymer dispersions using amphoteric polymers as stabilizers |
| 06/13/1991 | CA2031972A1 Procedure for the production of pulp |
| 06/11/1991 | US5023246 Betaine group-containing derivatives of carboxymethylcellulose, their synthesis and their use in cosmetic preparations |
| 06/11/1991 | US5022924 Finely divided silica mixed with faolin clays before calcining |
| 06/08/1991 | WO1991009174A1 Wet strength resin composition and method of making same |
| 06/08/1991 | CA2070837A1 Wet strength resin composition and method of making same |
| 06/05/1991 | EP0430770A1 Improvement of properties of paper sheets made of cellulosic fibres |
| 06/05/1991 | EP0430582A1 Structured kaolins used to fill paper |
| 06/05/1991 | EP0429707A1 Process for the preparation of basic calcium carbonate, basic calcium carbonate therefrom and its use |
| 06/05/1991 | CN1051953A Process for preparation of cooking liquors having high sulphidity for sulphate pulp cooking |
| 06/05/1991 | CN1051852A Improvements relating to smoking articles |
| 06/04/1991 | US5021529 Formaldehyde-free, self-curing interpolymers and articles prepared therefrom |
| 06/04/1991 | CA1284639C Amphoteric starches and process for their preparation |
| 06/04/1991 | CA1284562C Paper size compositions |
| 05/30/1991 | WO1991007285A1 Watermarked plastic support |
| 05/30/1991 | WO1991007128A1 Treated duster |
| 05/29/1991 | EP0428620A1 A method of plasticizing lactide polymers. |
| 05/29/1991 | DE3939034A1 Herstellung stabiler polymerdispersionen mittels amphoterer polymerer als stabilisatoren Preparation of stable polymer dispersions by means of amphoteric polymeric stabilizers as |
| 05/29/1991 | CA2030688A1 Improving of cellulosic fiber paper web properties |
| 05/28/1991 | US5019606 Aqueous solutions of polyamidoamine-epichlorohydrin resins, and preparation and use thereof |
| 05/28/1991 | CA1284404C Method of manufacturing a bonded particulate article by reacting a polyol and a heterocyclic compound |
| 05/28/1991 | CA1284403C Method of manufacturing a bonded particulate article by reacting a hydrolyzed amylaceous product and a heterocyclic compound |
| 05/23/1991 | CA2029955A1 Structured kaolin used to fill paper |
| 05/21/1991 | US5017642 Polyamide and epichlorohydrin |
| 05/21/1991 | US5017268 Filler compositions and their use in papermaking |
| 05/14/1991 | US5015334 Colloidal composition and its use in the production of paper and paperboard |
| 05/14/1991 | CA1284015C Synthetic lamellar magnesium phyllosilicate and process for preparation thereof |
| 05/14/1991 | CA1284004C Aqueous dispersions, a process for their preparation and their use as sizing agents |
| 05/10/1991 | WO1991007543A1 A process for the production of paper |
| 05/10/1991 | WO1991007351A1 Silica sols, a process for the production of silica sols and use of the sols |
| 05/09/1991 | WO1991007350A1 Silica sols, a process for the production of silica sols and use of the sols |
| 05/08/1991 | EP0426652A1 Process for the chlorine-free bleaching of pulp |
| 05/08/1991 | EP0426280A1 Paper mats |
| 05/08/1991 | DE3929108A1 Wet strength paper is prepd. |
| 05/07/1991 | US5013794 Amide or imide derivatives of maleic anhydride polymers, paper sizing |
| 05/07/1991 | US5013775 Sizing composition and sizing method |
| 05/07/1991 | US5013405 Method of making a low density frothed mineral wool |
| 05/07/1991 | CA1283985C Retention and/or drainage and/or dewatering aid |
| 05/07/1991 | CA1283761C Paper production |
| 05/03/1991 | CA2016325A1 Paper mats |
| 04/30/1991 | US5011741 Addition of cooked or hydrolyzed corn starch improves tear strength of short fibers of newspapers for reuse as high strenth requirement |
| 04/30/1991 | US5011534 Degritting, spray drying, pulverizing, roasting and repulverizing |
| 04/30/1991 | CA1283748C Vinylamine copolymer, flocculating agent and paper strength increasingagent using the same, as well as process for producing the same |
| 04/30/1991 | CA1283747C Copolymeric compositions for dispersing pitch |