Polymers derived from isobutylene and fluoro monomer

Details Polymers derived from isobutylene and fluoro monomer Polymers derived from isobutylene and fluoro monomer

C - Chemistry, Metallurgy

08

F

C08F 210/10 (2006.01) B05D 3/02 (2006.01) B05D 7/00 (2006.01) C08F 8/00 (2006.01) C08F 214/18 (2006.01) C08F 220/10 (2006.01) C08F 290/04 (2006.01) C08G 18/62 (2006.01) C08G 18/79 (2006.01) C08G 18/80 (2006.01) C09D 123/22 (2006.01) C09D 127/12 (2006.01) B05D 1/00 (2006.01) B05D 3/06 (2006.01)

Patent

CA 2476099

A composition that includes a fluorine-containing copolymer containing at least 30 mol % of residues having the following alternating structural unit: - [DM-AM]-where DM represents a residue from a donor monomer having the following structure (I): R1~ is linear or branched C~1 to C~4 alkyl; R2~ is selected from methyl, linear, cyclic or branched C~1 to C~20 alkyl, alkenyl, aryl, alkaryl and aralkyl; and AM represents an acceptor monomer. The copolymer contains at least 5 wt.% fluorine. The composition may include co- reactive functional groups and may be a thermosetting composition, which can be used to coat a substrate. The thermosetting composition may be part of a multi-component composite coating composition that includes a base coat deposited from a pigmented film-forming composition and a substantially pigment free top coat applied over at least a portion of the base coat.

L'invention concerne une composition comprenant un copolym­re contenant du fluor et un pourcentage molaire d'au moins 30 % de r~sidus pr~sentant l'unit~ structurelle altern~e suivante -[DM-AM]- dans laquelle DM repr~sente un r~sidu d'un monom­re donneur pr~sentant la structure (I) suivante dans laquelle R?1´ est un alkyle C´1?-C´4? lin~aire ou ramifi~, R?2´ est s~lectionn~ parmi le m~thyle, un alkyle, un alc~nyle, un aryle, un alkaryle et un aralkyle C´1?-C´20 ?lin~aire, cyclique ou ramifi~, et AM repr~sente un monom­re accepteur. Le copolym­re contient au moins 5 % en poids de fluor. La composition peut comprendre des groupes fonctionnels co-r~actifs et peut Útre une composition thermodurcissable pouvant Útre utilis~e pour recouvrir un substrat. La composition thermodurcissable peut faire partie d'une composition de revÚtement composite ~ composants multiples, comprenant une couche de base d~pos~e ~ partir d'une composition filmog­ne pigment~e et une couche sup~rieure sensiblement sans pigment appliqu~e sur au moins une partie de la couche de base.

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