Use of styrene and maleic anhydride copolymers as dispersing agents
and/or for treatment of mineral fillers and thermoplastic compounds
containing same
    10.
    发明授权
    Use of styrene and maleic anhydride copolymers as dispersing agents and/or for treatment of mineral fillers and thermoplastic compounds containing same 失效
    使用苯乙烯和马来酸酐共聚物作为分散剂和/或用于处理含有它们的矿物填料和热塑性化合物

    公开(公告)号:US6114454A

    公开(公告)日:2000-09-05

    申请号:US50197

    申请日:1998-03-30

    摘要: The present invention relates to a method of dispersing or treating a mineral filler into a thermoplastic resin; the dispersing agent or agent for treatment of a mineral filler is a styrene-maleic anhydride copolymer, having an weight average molecular weight preferably between 1000 to 3000; the thermoplastic resin is selected from (a) a hydrocarbon homopolymer without an aryl group, (b) a copolymer without an aryl group, and with a molecule comprised of carbon, hydrogen and oxygen in which the content of oxygen atoms does not exceed 22% by weight or (c) a mixture of the above described homopolymer and copolymer; the mineral fillers are basic or have surfaces that have free hydroxyl groups. The present invention relates also to thermoplastic compounds which are highly filled, stable, fluid and homogeneous and which contain mineral agents; further these compositions are useful in the fabrication of plastic products.

    摘要翻译: 本发明涉及将矿物填料分散或处理成热塑性树脂的方法; 用于处理矿物填料的分散剂或试剂是苯乙烯 - 马来酸酐共聚物,其重均分子量优选为1000-3000; 热塑性树脂选自(a)不具有芳基的烃均聚物,(b)不含芳基的共聚物,以及由氧,氧和氧组成的分子,氧原子含量不超过22% 或(c)上述均聚物和共聚物的混合物; 矿物填料是碱性的或具有游离羟基的表面。 本发明还涉及高度填充,稳定,流动和均匀且含有矿物质的热塑性化合物; 此外,这些组合物可用于制造塑料制品。