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Invention Grant
US08399560B2 Use of polyalkyl(meth)acrylate bead polymers and moulding material for producing extruded moulded parts with a matt surface 有权
使用聚（甲基）丙烯酸烷基酯珠粒聚合物和用于生产具有无光泽表面的挤出成型部件的成型材料

Use of polyalkyl(meth)acrylate bead polymers and moulding material for producing extruded moulded parts with a matt surface
Abstract:
The invention relates to the use of polyalkyl(meth)acrylate bead polymers with an average particle size V50 that ranges between 30 and 70 μm for improving the stress cracking resistance of moulding materials containing polyalkyl(meth)acrylate. The invention also relates to moulding materials comprising: a) at least 50 wt. % of an impact resistance modifying agent, which contains at least one polyalkyl(meth)acrylate phase; b) at least 8 wt. % of a polyalkyl(meth)acrylate bead polymer with an average particle size V50 that ranges between 30 and 70 μm; and c) between 0 and 42 wt. % of a polyalkyl(meth)acrylate with a molecular weight ranging between 20,000 and 350,000 g/mol, whereby the wt. % of the components a) to c) amounts to 100 wt. %, and to moulded bodies that can be obtained from said materials.
Abstract(Chinese):

本发明涉及平均粒度V50为30〜70μm的聚（甲基）丙烯酸烷基酯聚合物（聚甲基丙烯酸烷基酯）聚合物用于提高含（甲基）丙烯酸聚烷基酯的成型材料的抗应力开裂性。 本发明还涉及成型材料，其包含：a）至少50wt。 ％的耐冲击改性剂，其含有至少一种（甲基）丙烯酸烷基酯相; b）至少8wt。 ％的平均粒度V50为（30〜70μm）的（甲基）丙烯酸烷基酯聚合的（甲基）丙烯酸烷基酯聚合物; 和c）0至42wt。 ％的分子量在20,000和350,000g / mol之间的聚（甲基）丙烯酸烷基酯，其中wt。 组分a）至c）的％相当于100wt。 ％，以及可以从所述材料获得的成型体。

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