Thermoplastic elastomer composition with an improved rubber...

Details Thermoplastic elastomer composition with an improved rubber... Thermoplastic elastomer composition with an improved rubber...

C - Chemistry, Metallurgy

08

L

C08L 23/28 (2006.01) C08L 77/00 (2006.01)

Patent

CA 2518087

A thermoplastic elastomer composition having improved durability, heat resistant andflexibility comprising a dynamically vulcanized blend of (A) a halogenated isobutylene elastomer, (B) polyamide and (C) an antioxidant having a melting temperature more than 70~C and less than 200~C, wherein the elastomer (A) is dispersed as a domain in a continuous phase of the polyamide (B) and the dynamically vulcanized blend of the components (A) and (B) is dynamically vulcanized in the presence of the antioxidant (C)as an anti- blocking agent.

L'invention concerne une composition élastomère thermoplastique possédant une durabilité accrue, résistant à la chaleur et souple, comprenant un mélange vulcanisé de : (A) un élastomère d'isobutylène halogéné ; (B) un polyamide et (C) un antioxydant possédant une température de fusion supérieure à 70 ·C et inférieure à 200 ·C, l'élastomère (A) étant dispersé en tant que domaine dans une phase continue du polyamide (B) et le mélange vulcanisé dynamiquement des composants (A) et (B) étant vulcanisé dynamiquement en présence de l'antioxydant (C) en tant qu'agent anti-adhérent.

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