Silane grafted copolymers of an alpha-olefin and a vinyl...

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 255/00 (2006.01) C08F 8/42 (2006.01) C08F 255/02 (2006.01) C08F 257/02 (2006.01)

Patent

CA 2362847

Curable silylated copolymers based on olefin copolymers comprising at least one alpha-olefin and a vinyl aromatic monomer (alkyl styrene) are prepared by reacting the olefin copolymer with an olefinically unsaturated hydrolyzable silane in the presence of a free radical generating agent. The silylated copolymers are readily curable by contact with water (moisture) and a silanol condensation catalyst and are particularly useful as the polymeric component in sealant, caulking, adhesive and coating formulations.

Des copolymères silylés durcissables à base de copolymères d'oléfine contenant au moins une alpha-oléfine et un monomère vinylique aromatique (styrène alcoylique) sont préparés par la réaction d'un copolymère oléfinique avec un silane hydrolysable à insaturation oléfinique en la présence d'un agent générateur de radicaux libres. Les copolymères silylés sont durcissables facilement par contact avec de l'eau (humidité) et un catalyseur de condensation au silanol, et ils sont particulièrement utiles en tant que composante polymère dans des formulations d'enduit, d'étanchéité, d'adhésif et de revêtement.

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