Impact-modified polycarbonate-polylactic acid composition

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 69/00 (2006.01) C08L 23/08 (2006.01) C08L 33/08 (2006.01) C08L 33/12 (2006.01) C08L 33/14 (2006.01) C08L 67/04 (2006.01)

Patent

CA 2734115

The present invention relates to a thermoplastic molding composition containing an aromatic polycarbonate, a polylactic acid and an impact modifying amount of a non-functionalized ethylene/(meth)acrylate copolymer. The inventive composition is characterized by its higher impact resistance, flexural and tensile properties than those of corresponding compositions where the copolymer is functionalized.

La présente invention porte sur une composition de moulage thermoplastique contenant un polycarbonate aromatique, un acide polylactique et une quantité conférant une résistance aux chocs d'un copolymère éthylène/(méth) acrylate non fonctionnalisé. La composition de l'invention est caractérisée par ses propriétés de résistance aux chocs et à la flexion et à la traction, qui sont supérieures par rapport à celles de compositions correspondantes dans lesquelles le copolymère est fonctionnalisé.

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