Graft copolymer emulsions and two-package waterborne...

Details Graft copolymer emulsions and two-package waterborne... Graft copolymer emulsions and two-package waterborne...

C - Chemistry, Metallurgy

08

F

C08F 290/04 (2006.01) C08G 18/62 (2006.01) C08G 18/63 (2006.01) C09D 151/00 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2296297

The invention concerns a graft copolymer emulsion which is anionically stabilized and which contains an amino-functional monomer. The graft copolymer, useful in a coating composition, has a weight average molecular weight of at least about 3,000 and comprises 20 to 95 weight percent of a polymer backbone and 5 to 80 weight percent of a macromonomer. The polymer backbone further comprises 0.5 to 30 weight percent of an amino-functional monomer and the macromonomer comprises at least about 5 weight percent of an unsaturated acid-functional monomer.

L'invention concerne une émulsion de copolymère greffé qui est stabilisée anioniquement et qui comporte un monomère amino-fonctionnel. Le copolymère greffé, utile dans une composition de revêtement, présente un poids moléculaire moyen en poids d'au moins environ 3.000 et comporte de 20 à 95 % en poids d'un squelette de polymère et de 5 à 80 % en poids d'un macromonomère. Le squelette de polymère comporte en outre de 0,5 à 30 % en poids d'un monomère amino-fonctionnel et le macromonomère comporte en outre environ 5 % en poids d'un monomère insaturé acide-fonctionnel.

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