Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21H - Pulp compositions; Preparation thereof not covered by subclasses ,; Impregnating or coating of paper; Treatment of finished paper not covered by class or subclass; Paper not otherwise provided for › D21H 17 - Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
Patents for D21H 17 - Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution (19,322)
01/1991
01/09/1991EP0406662A1 Process for producing aragonite crystal form calcium carbonate with acicular shape
01/09/1991EP0406550A1 Process for the preparation of purified calcium sulfate dihydrate from aqueous solutions
01/09/1991EP0406461A1 Paper sizing agent containing a cationic dispersant
01/09/1991EP0406406A1 Process for preparing basic aluminum compounds.
01/09/1991CN1048399A Highly concentrated aqeous suspension of minerals and/or fillers and/or pigments
01/08/1991US4983748 Acetals useful for the preparation of polysaccharide derivatives
01/08/1991US4983257 Invert size for the internal and surface sizing of paper
01/06/1991CA2020396A1 Paper sizing agent containing a new cationic dispersing agent
01/02/1991EP0405918A1 Aqueous starch dispersion
01/02/1991CN1048149A Improvements relating to smoking articles
01/02/1991CA1278403C Production of paper and cardboard
01/01/1991US4981958 Method for the dry cationization of starch II
01/01/1991US4981913 Shelf life, papermaking
01/01/1991US4981675 Polymeric basic aluminum silicate-sulphate
01/01/1991US4981557 Acrylamide or ester type cationic polymer
12/1990
12/31/1990CA2019224A1 Microcapsules containing watersoluble amphiphilic substances
12/27/1990EP0404582A1 Gellan gum sizing
12/27/1990EP0404580A1 Improvements relating to smoking articles
12/27/1990EP0404030A1 Method for coating substrates with UV curable epoxysilicone compositions
12/27/1990EP0403849A2 High opacity paper containing expanded fiber and mineral pigment
12/27/1990EP0403798A1 Process for treating the surface of an uncoated paper
12/27/1990CA1278228C Polymer immobilizing process intended for liquid retention in a open pore structure
12/25/1990US4980238 Aqueous dispersion of cationic polymer
12/25/1990US4980025 From celulosic fiber pulp where anionic aluminum silicates or aluminum modified silicic acid and cationic polyacrylamide are added; improved drainage/retention
12/25/1990US4980024 Antiskid paper with enhanced friction retention
12/25/1990US4980023 Method for manufacturing paper or cardboard and product containing cellulase
12/22/1990CA2013339A1 Method for coating substrates with uv curable epoxysilicone compositions
12/20/1990DE4018678A1 Partially metallised ammonium salts of sulpho-gp. contg. cpds.
12/19/1990EP0403129A2 Multiple layer cigarette paper for reducing sidestream smoke
12/19/1990EP0402476A1 A process for sizing paper using self-emulsifiable size
12/18/1990US4978427 Water-soluble copolymers containing vinylamine units as wet strength and dry strength agent for paper
12/16/1990WO1990015900A1 Porous, micronized, low density vegetable filler with a controlled particle size and low specific physical and hydraulic surfaces, and method of preparation and use of same
12/16/1990CA2034507A1 Micronized porous vegetal load, of low density, with controlled particule size and small specific physical and hydraulicsurfaces, process for its preparation and its use
12/13/1990DE4018162A1 Aq. mineral, filler or pigment slurry with high solids content
12/12/1990EP0402072A2 Binder for non-woven fibres
12/12/1990EP0401790A2 Highly concentrated aqueous slurry of minerals and/or fillers and/or pigments
12/12/1990EP0401645A2 Modified rosin resins, method for their manufacture, use thereof and paper sizing agents containing the same
12/12/1990EP0401434A1 Improved creping adhesive formulation
12/12/1990EP0380471A4 Nonwoven fabric-like product using a bacterial cellulose binder and method for its preparation
12/11/1990US4977239 Filter media
12/11/1990US4976786 Method for forming aggregated kaolin pigment
12/11/1990CA1277785C Flocculation processes
12/11/1990CA1277533C Method and apparatus for minimizing nesting in roll material
12/08/1990CA2018350A1 Modified colophony resins, a process for their preparation, their use and paper-sizing agents containing colophony resins of this type
12/05/1990EP0400410A2 Process for sizing paper
12/05/1990EP0400361A1 Process for preparation of a cationic starch with controlled viscosity
12/05/1990CA2018184A1 Binder for non woven fibers
12/04/1990US4975499 Imparting wet strength to paper
12/04/1990CA1277449C Flocculation processes
12/04/1990CA1277111C Sizing agent
11/1990
11/30/1990CA2017725A1 Method of manufacturing an adjustable viscosity cationised starch
11/28/1990EP0399775A1 Film-forming size composition
11/28/1990CN1010599B Process for production of paper
11/27/1990US4973680 Organosiloxane-containing polysaccharides
11/27/1990US4973641 Polysaccharide graft copolymers containing reactive aminoethyl halide group
11/27/1990CA1276757C Composition for preparing paperboard container for liquids
11/27/1990CA1276755C Making paper which has a high dry strength
11/27/1990CA1276754C Aqueous pigment suspensions based on alkyl (meth)acrylates as dispersants for pigments
11/27/1990CA1276753C Non-woven fibrous composite materials and method for the preparation thereof
11/24/1990WO1990014309A1 Process for the preparation of purified calcium sulphate dihydrate by aqueous means
11/24/1990CA2033189A1 Process for preparation of purified calcium sulphate by aqueous medium
11/21/1990CN1047126A Full chemical bush pulp and pulping technology
11/20/1990US4971629 Roasting, digestion in sodium hydroxide, separation the aggregated product
11/20/1990CA1276415C Process for preparing paper or paperlike materials
11/20/1990CA1276413C Papermaking process
11/20/1990CA1276412C Loaded paper
11/15/1990WO1990013707A1 Papermaking size based on ketene dimer
11/13/1990US4970250 Epoxidized polyamide wet strength resin containing lecithin
11/13/1990US4970211 Ionene polymeric compositions, their preparation and use
11/13/1990US4970192 Pressure-sensitive copying paper
11/13/1990US4969976 Pulp dewatering process
11/13/1990CA1276376C Polymers and process of making same
11/13/1990CA1276060C Method for preparing random-fiber thermoset composites
11/13/1990CA1276057C Storage stable paper size composition containing ethoxylated lanolin
11/13/1990CA1276056C Storage stable paper size composition containing ethoxylated lanolin
11/07/1990EP0396242A2 The controlled precipitation and use of amorphous silicia from geothermal fluid or aqueous media having a silicic acid concentration
11/07/1990CN1046769A Method for making protecting paper of gypsum board and products thereof
11/06/1990US4968728 Synthetic alkali metal alumino-silicates, methods and uses, compositions and their methods of preparation
11/06/1990CA1275757C Method of processing waste paper
10/1990
10/31/1990EP0394368A1 A process for the production of paper.
10/30/1990US4966652 Adding an aqueous solution of a water soluble polymer of acrylamide and glyoxal, drying
10/26/1990WO1990012921A1 Paper sizing compositions
10/26/1990CA2051635A1 Paper sizing compositions
10/24/1990EP0393825A1 Novel water-absorptive composite material and method for the preparation thereof
10/24/1990EP0393105A1 Sizing agent for paper
10/23/1990US4964954 Process for the production of paper
10/23/1990US4964953 Amphoteric starches and process for their preparation
10/23/1990US4964952 Method of controlling pitch using a cationically modified tannin
10/23/1990US4964915 Hydrophobic cellulose-reactive sizing agent and cationic polymer comprising a starch
10/22/1990WO1990012765A1 Opacifying kaolin pigments and process for making same
10/16/1990US4963436 Coated porous mullite bodies
10/16/1990US4963192 Process for the production of a pigment-based agent suitable for the paper and board industry and improving the printability of paper and board
10/16/1990CA1275151C High bulking pigment and method of making the same
10/10/1990EP0391646A1 A process for the preparation of a poly(paraphenylene terephthalamide) fibrous gel composition and a process to produce poly (Paraphenylene terephthalamide) paper from the composition
10/10/1990EP0391343A2 Very fine-sized aqueous polymeric microemulsions
10/09/1990US4961825 Papermaking process
10/05/1990CA2013318A1 Very fine-sized aqueous polymeric microemulsions
10/04/1990WO1990011170A1 A natural fiber product coated with a thermoset binder material
10/04/1990WO1990011141A1 Sizing of cellulose fibers
10/03/1990EP0390257A1 Process for preparing a purified mineral coating
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