Elastic methacrylate compositions

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 279/00 (2006.01) C09J 4/00 (2006.01)

Patent

CA 2633719

A two-part adhesive composition exhibiting improved elasticity wherein its composition includes one or more acrylate or methacrylate ester monomers, a sulfur bearing compound, preferably a sulfonyl chloride, an amine promoter, preferably, an amine aldehyde reaction product, and a thermoplastic block copolymer component selected from the group consisting of a a linear styrene-butadiene-styrene copolymer b. a radial styrene-butadiene-styrene block copolymer with a plasticizer, c. a linear or radial styrene-isoprene-styrene block copolymer, and d. a linear or radial styrene- butadiene-isoprene- styrene block copolymer, and mixtures thereof.

L'invention concerne une composition adhésive en deux parties présentant une élasticité améliorée, ladite composition comprenant un ou plusieurs monomères d'ester acrylate ou méthacrylate, un composé contenant du soufre, de préférence un chlorure de sulfonyle, un promoteur aminé, de préférence un produit de réaction amine aldéhyde, et un composant copolymère séquencé thermoplastique choisi parmi a. un copolymère linéaire de styrène-butadiène-styrène, b. un copolymère séquencé radial de styrène-butadiène-styrène avec un plastifiant, c. un copolymère séquencé linéaire ou radial de styrène-isoprène-styrène et d. un copolymère séquencé linéaire ou radial de styrène-butadiène-isoprène-styrène et leurs mélanges.

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