Epoxide-based structural foam having improved tenacity

Details Epoxide-based structural foam having improved tenacity Epoxide-based structural foam having improved tenacity

C - Chemistry, Metallurgy

08

J

C08J 9/00 (2006.01) C08L 63/00 (2006.01)

Patent

CA 2741736

Disclosed is a thermally expandable and curable material containing: a) at least one epoxide prepolymer; b) at least one heat-activated curing agent for the prepolymer; c) at least one foaming agent; d) at least one thermoplastic polyurethane or isocyanate; e) at least one block copolymer. Said thermally expandable and curable material can be used for stiffening or reinforcing components.

L'invention concerne une masse thermoexpansible et thermodurcissable contenant : a) au moins un prépolymère époxy, b) au moins un durcisseur à activation thermique pour le prépolymère, c) au moins un agent d'expansion, d) au moins un isocyanate ou un polyuréthane thermoplastique, e) au moins un copolymère bloc. L'invention concerne également l'utilisation de cette masse thermoexpansible et thermodurcissable pour rigidifier ou renforcer des composants.

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