Patent ID: 6939917
Filing Date: 2005-09-06
Classification: C08L

Abstract:
1. An impact-resistant thermoplastic composition comprising: A) a rigid thermoplastic methacrylic polymer or copolymer matrix P containing 51-100% by weight methyl methacrylate units, and B) at least one impact-modifying additive, where said composition further comprises (C) at least one elastomer copolymer which contains grafting sites, at least on pendant chains, wherein copolymer (C) is obtained from at least one vinylaromatic monomer (C wherein said copolymer (C) is grafted by thermoplastic polymer groups P and is dispersed in the matrix (A) in the form of nodules from 10 nm to 500 nm in size and able to have a droplet, capsule-type monoinclusion and/or salami-type multi-inclusion morphology.