Preparation of bead-form expandable styrene polymers having improved
expandability
    3.
    发明授权
    Preparation of bead-form expandable styrene polymers having improved expandability 失效
    制备具有改善的膨胀性的珠粒可发性苯乙烯聚合物

    公开(公告)号:US5616624A

    公开(公告)日:1997-04-01

    申请号:US495594

    申请日:1995-08-02

    CPC分类号: C08J9/20 C08K5/09 C08J2325/04

    摘要: A process for the preparation of bead-form expandable styrene polymers by polymerizing styrene, if desired in the presence of further comonomers, in aqueous suspension in the presence of organic molecular colloids as suspension stabilizers and conventional styrene-soluble polymerization catalysts and with addition of a blowing agent and, if desired, conventional additives in effective amounts, wherein the aqueous suspension contains at least one olefinically unsaturated carboxylic acid or a water-soluble salt thereof in an amount, based on the organic phase, of from 0.002 to 0.3% by weight of carboxylate anions.

    摘要翻译: PCT No.PCT / EP94 / 00662 Sec。 371日期:1995年8月2日 102(e)日期1995年8月2日PCT 1994年3月5日PCT公布。 第WO94 / 21719号公报 日期1994年9月29日一种通过在有机分子胶体作为悬浮稳定剂和常规苯乙烯可溶性聚合催化​​剂存在下,在水悬浮液中,如果需要在其它共聚单体存在下聚合苯乙烯,制备珠粒形可发性苯乙烯聚合物的方法 并且如果需要,加入有效量的常规添加剂,其中水悬浮液含有至少一种基于有机相的烯属不饱和羧酸或其水溶性盐为0.002 到0.3重量%的羧酸根阴离子。

    Expandable styrene polymers containing carbon dioxide as blowing agent
    9.
    发明授权
    Expandable styrene polymers containing carbon dioxide as blowing agent 失效
    含有二氧化碳作为发泡剂的可膨胀的苯乙烯聚合物

    公开(公告)号:US5229429A

    公开(公告)日:1993-07-20

    申请号:US973822

    申请日:1992-11-09

    摘要: The invention relates to expandable styrene polymers containinga) a styrene polymer,b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), andc) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight,where the blowing agent or blowing agent mixture comprisesc.sub.1) from 10 to 100% by weight of carbon dioxide andc.sub.2) from 0 to 90% by weight of at least one further blowing agent.The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.

    摘要翻译: 本发明涉及含有a)苯乙烯聚合物,b)和至少一种与上述混合或共聚的二氧化碳吸收剂的可发性苯乙烯聚合物,其量为0.01至50重量%,基于a) 和b),和c)发泡剂或发泡剂混合物的量为0.5至12重量%,其中发泡剂或发泡剂混合物包含c1)10至100重量%的二氧化碳和c2) 0至90重量%的至少一种其它发泡剂。 本发明还涉及含有二氧化碳吸收剂的苯乙烯聚合物,可从可发性苯乙烯聚合物获得的苯乙烯聚合物泡沫,以及用含二氧化碳的发泡剂或发泡剂混合物浸渍苯乙烯聚合物的改进方法。

    Expandable styrene polymers containing carbon dioxide as blowing agent
    10.
    发明授权
    Expandable styrene polymers containing carbon dioxide as blowing agent 失效
    含有二氧化碳作为发泡剂的可发性苯乙烯聚合物

    公开(公告)号:US5258415A

    公开(公告)日:1993-11-02

    申请号:US10316

    申请日:1993-01-28

    摘要: The invention relates to expandable styrene polymers containinga) a styrene polymer,b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), andc) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight,where the blowing agent or blowing agent mixture comprisesc.sub.1) from 10 to 100% by weight of carbon dioxide andc.sub.2) from 0 to 90% by weight of at least one further blowing agent.The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.

    摘要翻译: 本发明涉及含有a)苯乙烯聚合物,b)和至少一种与上述混合或共聚的二氧化碳吸收剂的可发性苯乙烯聚合物,其量为0.01至50重量%,基于a) 和b),和c)发泡剂或发泡剂混合物的量为0.5至12重量%,其中发泡剂或发泡剂混合物包含c1)10至100重量%的二氧化碳和c2) 0至90重量%的至少一种其它发泡剂。 本发明还涉及含有二氧化碳吸收剂的苯乙烯聚合物,可从可发性苯乙烯聚合物获得的苯乙烯聚合物泡沫,以及用含二氧化碳的发泡剂或发泡剂混合物浸渍苯乙烯聚合物的改进方法。