Patents for D21H 17 - Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution (19,322)
03/1980
03/19/1980EP0008761A1 Paper sizing agent and paper sized therewith
03/18/1980US4193841 Latex binder
03/11/1980CA1073162A1 Process for treating mechanical pulps and/or products prepared therefrom
03/04/1980US4191820 Polyepihalohydrin, ethylenediamine
03/04/1980US4191610 Upgrading waste paper by treatment with sulfite waste liquor
03/04/1980CA1073140A1 Resol resins
02/1980
02/26/1980US4190610 Catalytic codimerization of norbornadiene with pentadiene
02/26/1980US4190492 Incorporating balls formed from aqueous composition of fiberboard dust, galactomannan gum, crosslinker into aqueous fiberboard slurry
02/26/1980US4190491 Process for controlling pitch in papermaking
02/26/1980CA1072258A1 Ground limestone as a filler in paper
02/19/1980US4189345 Fibrous compositions
02/12/1980US4188446 Ethylene-vinyl acetate latex, alkali metal alkylnaphthalene sulfonate
02/12/1980CA1071517A1 Composite sheet material for use in covering walls, and a method of manufacturing same
02/12/1980CA1071497A1 Rosin dispersions
02/06/1980EP0007705A1 Modified aminoplast condensation products and process for their preparation
02/05/1980US4187142 Method for forming high strength composites
01/1980
01/22/1980US4185017 N-(formylaminomethyl)-e-caprolactams by condensing formamide, formaldehyde and e-caprolactam; used as amino resin curing agents
01/22/1980US4184914 Foam coating of paper employing a hydrolyzed protein foaming agent
01/22/1980CA1070182A1 Vesiculated silica microspheres containing inorganic pigment
01/22/1980CA1070055A1 Pigmented microporous silica microspheres
01/15/1980US4183783 Semisynthetic paper structure on a urea basis
01/15/1980CA1070038A1 Adhesive repellent coatings and substrates coated therewith
01/15/1980CA1069742A1 Pulp sheet formation
01/09/1980EP0006390A1 Process of forming a fibrous web by the papermaking technique in order to improve the binding and retention, web obtained by this process and its use as a substitute material for asbestos products and as a printing or writing support
01/09/1980EP0006362A1 Process for the production of non-combustible asbestos-free board products
01/09/1980EP0006360A1 A polymeric wet strength paper additive and a process for improving the wet strength of a fibrous cellulosic substrate
01/09/1980EP0006112A1 Process for preparing thermosetting urea formaldehyde resins and their use for impregnating and/or coating supporting webs of wood-based boards
01/08/1980US4182839 Storage stability, amine modifiers
01/08/1980US4182649 Self-supporting cushion-like laminates and sheets
01/01/1980US4181567 Paper manufacture employing filler and acrylamide polymer conglomerates
01/01/1980US4181566 Cellulosic materials internally sized with ammoniated acid copolymers and epihalohydrin/alkylamine reaction products
12/1979
12/25/1979CA1068452A Aqueous fortified rosin dispersions
12/18/1979US4179370 Flocculating agent comprising water-in-oil emulsion of stabilizer plus NH-active polymer carrying formaldehyde and amine radicals
12/18/1979CA1068055A1 Paper sizing process
12/12/1979EP0005905A1 Aminoplast resin particles, a process for their manufacture and their use in paper products
12/11/1979US4178205 High strength non-woven fibrous material
12/11/1979US4178204 Wet-strength of wet glass fiber mats by treatment with anionic polyelectrolytes
12/11/1979US4178203 Method of increasing the strength of wet glass fiber mats made by the wet-laid process
12/11/1979CA1068043A1 Polymers containing dioxathiazole-2-oxide groups
11/1979
11/27/1979US4176107 Water-soluble dispersions of high molecular water-soluble polymers containing a surfactant and a water-soluble organic carrier which is a hydroxy compound containing repeating alkylene oxide units
11/20/1979US4174998 Preflocculated filler compositions for use in the manufacture of paper
11/20/1979CA1066461A1 Pre-treatment of non-wovens
11/15/1979WO1979000898A1 Transfer sheet for electrostatic photography
11/14/1979EP0005419A1 Aluminium sulphate compositions containing polynuclear complexes and a method of producing the same and the use thereof
11/14/1979EP0005241A1 Polyalkylene polyamines containing quaternary ammonium groups, method for their preparation and their use as auxiliary agents in paper making
11/14/1979EP0005201A1 Paper sizing agent
11/13/1979CA1066145A1 Reinforced wallboard and method of making the same
10/1979
10/17/1979EP0004833A2 Paper-like fibre product and method of manufacturing such a product
10/17/1979EP0004537A2 Process for the preparation of aqueous polymer suspensions
10/09/1979US4170672 Wet and dry strength, acrylamide-quaternary acrylate polymer modified with glyoxal
09/1979
09/25/1979CA1063276A1 Nitrogenous condensation products
09/18/1979CA1062832A1 Method for surface gluing and coloring of paper and cardboard
09/18/1979CA1062596A1 Resin impregnant containing water soluble sillcate
09/11/1979US4167439 Non-ionic, water-soluble polymers for improving the dry-strength of paper
09/11/1979CA1062072A1 Radiation-curable mercaptoalkyl vinyl polydiorganosiloxanes
09/04/1979US4166894 Quaternary ammonium compounds or polymers having amide groups
08/1979
08/28/1979US4166002 Polyamines containing acid groups that are useful in papermaking
08/22/1979EP0003499A1 Process for the manufacture of water-soluble condensation products, their use in papermaking and process-aids containing these condensation products
08/22/1979EP0003481A2 Highly filled sheets and method of preparation thereof
08/21/1979CA1060606A1 Cellulose and cellulose products modified by silicic acid
08/14/1979US4164595 Premoistened flushable wiper
08/14/1979CA1060244A1 Method for the manufacture of a mineral fibre sheet
08/08/1979EP0003220A1 A method of increasing the strength of wet glass fiber mats made by the wet-laid process
08/08/1979EP0003214A1 A method of manufacturing glass fibre mats from an aqueous dispersion of glass fibres and a method of forming said dispersion
07/1979
07/31/1979US4162934 Method of producing sorption bodies
07/31/1979CA1059269A1 Flame resistant paperboard
07/25/1979EP0003163A1 One-component binder fiberboard
07/24/1979US4162180 Producing embossed wall- or ceiling-covering of cellulosic pulp and two different discrete thermoplastic materials
07/17/1979US4161455 Detergents
07/17/1979US4161423 Use of a dissolved cellulose as a dry strength agent and drainage aid for paper
07/17/1979CA1058794A1 Crosslinked polyamidoamine condensation products for papermaking
07/17/1979CA1058788A1 Non-aqueous dispersions of water-soluble polymers and aqueous solutions therefrom
07/10/1979US4160753 Process for the production of polyamide-polyureas and dispersions thereof in water
07/03/1979CA1057892A1 Functional ionene compositions and their use
07/03/1979CA1057600A1 Disposable nonwoven wet wipe
07/03/1979CA1057467A1 Method of preparing aqueous dispersions of fortified rosin
06/1979
06/27/1979EP0002518A2 Condensation product of epsilon-caprolactam, formaldehyde and formamide, aminoplast modified by this condensation product and process for the preparation of the aminoplast
06/27/1979EP0002475A1 Amide groups-containing polyamines, process for their preparation, their use in the manufacture of paper and additives containing these polyamines
06/27/1979EP0002474A1 Polyamines containing amide groups and their use in paper manufacture
06/26/1979CA1057009A1 Method of making a novel starch derivative and the product produced thereby
06/12/1979US4157982 Emulsifying alkali metal alkylbenzene sulfonate, rosin, and water
06/12/1979US4157937 Resole resin and polyvinyl acetate impregnated filter paper
06/12/1979US4157920 Novel precipitated siliceous products and methods for their use and production
06/05/1979US4157275 Polyvinyl alcohol fibers containing acicular colloidal clay
05/1979
05/30/1979EP0002044A1 Impregnation agent for cellulosic fibrous materials
05/29/1979US4156775 Retention aids for sizing agents and dyes and as antistatic agents
05/29/1979CA1055292A1 Manufacture of paper
05/22/1979US4155847 Cationic polymer flocculant prepared by reacting epichlorohydrin and a Mannich reaction product
05/22/1979CA1054758A1 Process for preventing the separation of resins in paper making
05/16/1979EP0001868A1 Paper sizing agent
05/15/1979US4154714 Vinyl endcapped polysiloxane, organohydrogen polysiloxane
05/02/1979EP0001697A1 Hydrophilic air-drying polymer
05/02/1979EP0001679A1 Particulate polyurethane polymers in the form of micro-bits, a process for their preparation and aqueous slurries containing them
05/01/1979US4152312 Semiesters of diisobutylene/maleic anhydride copolymer in the form of alkali, amine or ammonium salts
05/01/1979US4152307 Process for production of a water-in-oil polymer emulsion having an excellent fluidity using an acrylic monomer containing quarternary ammonium salt
05/01/1979US4152201 Sizing
05/01/1979US4152200 Process for draining formed paper
05/01/1979US4152199 Synergistic starch xanthates and polyamides modified with epichlorohydrin
05/01/1979CA1053842A1 Aminopolyamide-acrylamide-glyoxal resin
05/01/1979CA1053824A1 Stabilized aqueous solution of a bisulphite blocked polyisocyanate