C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 9/02 (2006.01) C08K 5/353 (2006.01) C08L 13/00 (2006.01) C08L 23/08 (2006.01) C08L 67/02 (2006.01) C08L 69/00 (2006.01)
Patent
CA 2313202
Low oil swell, processable carboxylated nitrile rubber thermoplastic vulcanizate compositions having high melting points are made utilizing a processing aid, for example, maleated polyethylene, and addition type curing agents such as bisoxazolines or bisimidazolines. The compositions generally contain polar thermoplastic high melting point crystalline polymers such as polyester as a continuous phase with the carboxylated nitrile rubber being dispersed therein.
L'invention concerne des compositions de produits vulcanisés thermoplastiques de caoutchouc nitrile carboxylé, transformables, à faible gonflement dans l'huile. On fabrique ces compositions, dont les points de fusion sont élevés, en utilisant un adjuvant, par exemple du polyéthylène maléaté, et des agents de durcissement de type additif, tels que des bisoxazolines ou des bisimidazolines. Ces compositions contiennent généralement des polymères cristallins thermoplastiques, polaires, à point de fusion élevé, tels que le polyester, en tant que phase continue dans laquelle est dispersé le caoutchouc nitrile carboxylé.
Abdou-Sabet Sabet
Abraham Tonson
Advanced Elastomer Systems L.p.
Mcfadden Fincham
LandOfFree
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