Flame resistant, expandable styrene polymers and foams, and flame
retardants
    1.
    发明授权
    Flame resistant, expandable styrene polymers and foams, and flame retardants 失效
    耐火,可发性苯乙烯聚合物和泡沫,以及阻燃剂

    公开(公告)号:US5010111A

    公开(公告)日:1991-04-23

    申请号:US565100

    申请日:1990-08-10

    摘要: Flame-resistant, expandable styrene polymers containing a styrene (co)polymer, from 0.4 to 6% by weight of hexabromocyclododecane having a mean particle size of from 1 to 50 .mu.m, the particles being provided with a firm coating which has a thickness of from 1/100 to 1/10 of the particle diameter and is insoluble in water and styrene, from 1 to 10% by weight of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired, customary additives, are distinguished by a reduced internal water content and can be processed to form foams which have an improved foam structure and high UV stability.

    摘要翻译: 含有苯乙烯(共)聚合物的阻燃,可发性苯乙烯聚合物,0.4至6重量%的平均粒度为1至50μm的六溴环十二烷,该颗粒提供有牢固的涂层,其厚度为 不溶于水和苯乙烯,1至10重量%的C3至C6烃作为发泡剂,如果需要,常规添加剂的区别在于: 减少的内部水含量并且可以被加工成形成具有改善的泡沫结构和高的UV稳定性的泡沫。

    Heat distortion resistant, expandable styrene polymers having a high
capacity of expansion
    4.
    发明授权
    Heat distortion resistant, expandable styrene polymers having a high capacity of expansion 失效
    具有高膨胀能力的耐热变形,可发性苯乙烯聚合物

    公开(公告)号:US5173514A

    公开(公告)日:1992-12-22

    申请号:US789454

    申请日:1991-11-07

    IPC分类号: C08J9/00 C08J9/20

    摘要: Expandable styrene polymers containinga) from 80 to 99% by weight of polystyrene,b) from 1 to 20% by weight of a styrene-soluble polymer having a softening point above 140.degree. C.,c) from 3 to 10% by weight, based on the sum of a) and b), of a C.sub.3 - to C.sub.6 -hyrocarbon as blowing agent, and, if desired, d) conventional additives,the mixture of components a) and b) having a melt flow index MFI 200/5 of from 15 to 30, have high heat distortion resistance and a high capacity for expansion.

    摘要翻译: 其包含a)80至99重量%的聚苯乙烯,b)1至20重量%的软化点高于140℃的苯乙烯可溶性聚合物,c)3至10重量% 基于a)和b)的总和作为发泡剂的C3-至C6-烃,以及如果需要,d)常规添加剂,具有熔体流动指数MFI 200的组分a)和b)的混合物 / 5为15〜30,耐热变形性高,扩容能力强。

    Heat distortion resistant, expandable styrene polymers having a high
capacity for expansion
    6.
    发明授权
    Heat distortion resistant, expandable styrene polymers having a high capacity for expansion 失效
    具有高膨胀能力的耐热变形性,可发性苯乙烯聚合物

    公开(公告)号:US5262445A

    公开(公告)日:1993-11-16

    申请号:US913374

    申请日:1992-07-15

    IPC分类号: C08J9/00 C08J9/20 C08J9/16

    摘要: Expandable styrene polymers containinga) from 80 to 99% by weight of polystyrene,b) from 1 to 20% by weight of a styrene-soluble polymer having a softening point above 140.degree. C.,c) from 3 to 10% by weight, based on the sum of a) and b), of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired, d) conventional additives,the mixture of components a) and b) having a melt flow index MFI 200/5 of from 15 to 30, have high heat distortion resistance and a high capacity for expansion.

    摘要翻译: 其包含a)80至99重量%的聚苯乙烯,b)1至20重量%的软化点高于140℃的苯乙烯可溶性聚合物,c)3至10重量% 基于a)和b)的总和,C3至C6烃作为发泡剂,如果需要,d)常规添加剂,具有熔体流动指数MFI 200的组分a)和b)的混合物 / 5为15〜30,耐热变形性高,扩容能力强。