Polymeric compositions, and the preparation and use thereof

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 101/02 (2006.01) C08F 293/00 (2006.01) C08G 18/10 (2006.01) C08G 18/76 (2006.01) C08G 81/02 (2006.01) C08J 3/09 (2006.01) C08L 71/02 (2006.01) C09D 5/03 (2006.01) C09D 11/00 (2006.01) C09D 11/10 (2006.01) C09D 153/00 (2006.01) C09J 153/00 (2006.01)

Patent

CA 2308448

A substantially non-gelled polymeric composition is disclosed and comprises the reaction product of an A polymer which is an addition polymer having 3.5 or more reactive functional groups per polymer chain and a B polymer having about 2 to about 3 functional groups per polymer chain that are co-reactive with the reactive functional group of the A polymer. Also disclosed is a process for preparing such polymeric compositions, powder coatings and 100 % solids ink resins prepared with such polymeric compositions, and a method for deglossing a powder coating using such polymeric compositions.

L'invention concerne une composition polymère sensiblement non gélifiée comprenant le produit de réaction d'un polymère A, lequel est un polymère d'addition présentant au moins 3,5 groupes fonctionnels réactifs par chaîne polymère, et d'un polymère B présentant environ 2 à environ 3 groupes fonctionnels par chaîne polymère, lesquels sont coréactifs avec les groupes fonctionnels réactifs du polymère A. L'invention concerne également un procédé de préparation de ces compositions polymères, des revêtements pulvérulents ainsi que des résines à encre à 100 % de solides préparées avec ces compositions polymères, et un procédé destiné à réduire la brillance d'un revêtement pulvérulent utilisant ces compositions polymères.

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