| 摘要 |
The invention relates to a polymer composition on the basis of a graft copolymer and a copolymer of styrene and maleic anhydride, comprising: A. a copolymer of styrene and maleic anhydride having a maleic anhydride content of 24-32 wt.%, B. a graft copolymer obtained by polymerization of a vinyl aromatic compound and acrylonitrile in the presence of a rubber, the rubber content of the graft copolymer being at least 55 wt.%, and, optionally, C. a copolymer of styrene and acrylonitrile, the ratios between the components of the polymer composition being such that the maleic anhydride content of the composition is 8-20 wt.%. This polymer composition gives a good HDT and/or Vicat temperature in combination with a high impact strength.
|
