Dispersions of blended polycarboxypolyamide resins and...

C - Chemistry – Metallurgy – 08 – L

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Details

C08L 77/00 (2006.01) C08J 3/05 (2006.01) C08L 93/04 (2006.01) C08L 101/08 (2006.01) C09D 11/02 (2006.01) C09D 11/10 (2006.01) C09D 177/00 (2006.01) C09D 177/04 (2006.01) C09D 193/00 (2006.01) C09D 193/04 (2006.01) C09G 1/04 (2006.01) D21H 17/62 (2006.01) D21H 21/16 (2006.01)

Patent

CA 2275564

This invention relates to polymer blends comprising a polycarboxypolyamide resin with an alkali dispersible resin. This invention also relates to the use of the polymer blends to prepare aqueous dispersions. The aqueous dispersions were obtained by heating polycarboxypolyamide resins with alkali dispersible resins in an aqueous medium. The invention further relates to coating compositions containing the aqueous dispersions. Such coating compositions include inks, floor finishes, overprint varnishes, sizing, paints and adhesives.

La présente invention concerne des mélanges de polymères comportant une résine de polycarboxypolyamide et une résine dispersible dans un liquide alcalin. Cette invention traite également de l'utilisation des mélanges de polymères en vue de préparer des dispersions aqueuses. Les dispersions aqueuses ont été obtenues par chauffage dans un milieu aqueux des résines de polycarboxypolyamide avec des résines dispersibles dans un liquide alcalin. L'invention concerne par ailleurs des compositions de revêtement contenant des dispersions aqueuses. Parmi lesdites compositions figurent des encres, des revêtements de finition, des vernis de surimpression, des colles, des peintures et des adhésifs.

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