申请人:DU PONT DE NEMOURS INTERNATIONAL S.A.
公开号:EP0889088A1
公开(公告)日:1999-01-07
Nonhalogen-Containing Thermoplastic Polyolefin blends are provided which are either heat resistant and are particularly useful in wire and cable coatings, extruded profiles, sheet form or injection molded part or have an elastomeric behavior and are particularly useful in injection molded part. These blends comprise preferably (1) ethylene n-butyl acrylate glycidyl methacrylate (EnBAGMA) terpolymer, (2) an ethylene propylene rubber (EPDM) grafted with maleic anhydride, (3) a polypropylene homopolymer for heat resistance or a very low density polyethylene for elastomeric behavior or a linear low density polyethylene (LLDPE) or a low density polyethylene or a high density polyethylene or an ethylene-polypropylene copolymer.
非卤素热塑性聚烯烃混合物具有耐热性,特别适用于电线电缆涂层、挤出型材、片材或注塑件,或者具有弹性,特别适用于注塑件。这些共混物最好包括:(1)乙烯丙烯酸正丁酯缩水甘油酯甲基丙烯酸酯(EnBAGMA)三元共聚物;(2)与马来酸酐接枝的乙丙橡胶(EPDM);(3)具有耐热性的聚丙烯均聚物或具有弹性的极低密度聚乙烯或线性低密度聚乙烯(LLDPE)或低密度聚乙烯或高密度聚乙烯或乙烯-聚丙烯共聚物。