Coating and filler compositions comprising platy layered...

C - Chemistry – Metallurgy – 09 – C

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C09C 1/00 (2006.01) C08K 3/34 (2006.01) C08K 7/00 (2006.01) C09D 5/00 (2006.01) C09D 7/12 (2006.01) C09D 11/02 (2006.01) D21H 17/68 (2006.01) D21H 19/40 (2006.01)

Patent

CA 2524391

A coating composition comprising platy magadiite pigment(s); a paper product comprising platy magadiite pigments; and an aqueous suspension comprising platy magadiite and a suspending agent selected from the group consisting of ;polyacrylate polymers, polyvinylalcohol polymers, maleic anhydride-containing copolymers, and polyphosphates, and a latex dispersion or emulsion of latex polymers selected from the group consisting of styrene butadiene polymers, acrylic polymers, carboxylated acrylonitrile :butadiene polymers, polyvinylchloride, polyvinyledenechloride, polystyrene, fluorinated polyethylene and polypropylene, and polytetrafluoroethylene; and an article or formulation comprising a platy layered silicate.

L'invention concerne une composition de revêtement contenant des pigments de magadiite lamellaire, un produit de papier renfermant des pigments de magadiite lamellaire, et une suspension aqueuse contenant de la magadiite lamellaire et un agent de suspension sélectionné parmi le groupe qui englobe des polymères de polyacrylate, des polymères d'alcool polyvinylique, des copolymères contenant un anhydride maléique et des polyphosphates, ainsi qu'une dispersion de latex ou une émulsion de polymères de latex sélectionnés parmi le groupe qui comprend des polymères de butadiène de styrène, des polymères acryliques, des polymères de butadiène d'acrylonitrile carboxylés, du poly(chlorure de vinyle), du poly(chlorure de vinylidène), du polystyrène, du polyéthyléne fluoré et du polypropylène et du polytétrafluoroéthylène. Cette invention a aussi trait à un article ou une préparation contenant un silicate en couches lamellaire.

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