Process for making thermoplastic vulcanizates

Details Process for making thermoplastic vulcanizates Process for making thermoplastic vulcanizates

C - Chemistry, Metallurgy

08

L

C08L 23/00 (2006.01) C08F 255/02 (2006.01) C08J 3/24 (2006.01)

Patent

CA 2530754

Abstract The invention provides a process for dynamic vulcanization comprising grafting organic silane on disperse phase component, thereby introducing chains into the component which are cross-linkable in the presence of cross- linking agents when the component is molten. The invention further provides thermoplastic vulcanizates having superior properties, including high flexibility and impact resistance, low hygroscopicity, non-toxicity, and excellent processability.

L'invention concerne un procédé de vulcanisation dynamique qui comprend un silane organique de greffage sous forme de composant à phase dispersée, qui consiste à introduire dans le composant des chaînes réticulables en présence d'agents de réticulation lorsque le composant est en fusion. Par ailleurs, l'invention concerne des vulcanisats thermoplastiques qui possèdent des propriétés supérieures, telles que : flexibilité et résistance aux chocs élevées, faible hygroscopicité, non toxicité, et excellente aptitude au traitement.

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