Thermoplastic compositions and method of use thereof for...

Details Thermoplastic compositions and method of use thereof for... Thermoplastic compositions and method of use thereof for...

C - Chemistry, Metallurgy

08

K

C08K 3/04 (2006.01) B29B 17/02 (2006.01) B29C 43/20 (2006.01) B29C 70/42 (2006.01) C08K 5/09 (2006.01) C08K 9/12 (2006.01) C09F 5/08 (2006.01) G03C 11/24 (2006.01)

Patent

CA 2592026

A polyolefin composition containing elastomers (plasticizers), crystalline polypropylene, modified by mixing with polybutene-l and a coupling agent and a bicyclic dicarboxyl acid salt nucleating agent and/or a lubricant which comprises an unsaturated fatty acid ester which acts as a surface modifier in a molded article is described. The composition is adapted to be used with pigments to make finished molded articles which have an appearance of paint covered by a clear coat and which are scratch resistant and have good low temperature (-30 ~C) impact properties.

L'invention concerne une composition de polyoléfines contenant des élastomères (plastifiants), du polypropylène cristallin, modifiés par mélange avec du polybutène-1 et un agent de couplage ainsi qu'un agent de nucléation à sel acide dicarboxylique bicyclique et/ou un lubrifiant contenant un ester d'acides gras insaturés faisant office de modifiant de surface dans un article moulé. La composition est conçue pour être utilisée avec des pigments afin de produire des articles moulés finis ayant une apparence de peinture recouverte d'un enduit lustré qui sont résistants aux rayures et présentent de bonnes propriétés de résistance aux chocs à basse température (-30 °C).

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