申请人:SABIC GLOBAL TECHNOLOGIES B.V.
公开号:US10479883B2
公开(公告)日:2019-11-19
The present invention relates to a composition comprising a heterophasic propylene copolymer and an ethylene polymer wherein the ethylene polymer has a density as measured according to ISO 1183-1 (2012), method A of ≥940 kg/m3, the ethylene polymer has a multimodal molecular weight distribution and the ethylene polymer has a strain hardening modulus of ≥5.0 MPa, the strain hardening modulus being measured according to ISO DIS 18488 (2014) using test specimens of 0.30 mm thickness. Such composition has a low surface gloss, while at least one of impact strength, scratch resistance and/or flexural modulus is improved. Such composition may for example be used in automotive interior parts.
本发明涉及一种包含杂相丙烯共聚物和乙烯聚合物的组合物,其中乙烯聚合物的密度根据ISO 1183-1(2012)方法A测量为≥940千克/立方米,乙烯聚合物具有多模态分子量分布,乙烯聚合物的应变硬化模量≥5.0兆帕,应变硬化模量根据ISO DIS 18488(2014)使用0.30毫米厚度的试样测量。这种组合物表面光泽度低,同时冲击强度、抗划伤性和/或弯曲模量中至少有一项得到了改善。例如,这种成分可用于汽车内饰件。