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238 条记录 (耗时 0.022 秒)

    Expandable styrene polymers and their preparation
    11.
    发明授权
    Expandable styrene polymers and their preparation 失效
    可发性苯乙烯聚合物及其制备方法

    公开(公告)号：US4983639A

    公开(公告)日：1991-01-08

    申请号：US486434

    申请日：1990-02-28

    申请人： Klaus Hahn ,  Uwe Guhr ,  Hans Hintz

    发明人： Klaus Hahn ,  Uwe Guhr ,  Hans Hintz

    IPC分类号： C08F2/18 ,  C08F257/02 ,  C08J9/18 ,  C08J9/20 ,  C08L51/00

    CPC分类号： C08J9/20 ,  C08F257/02 ,  C08J9/18 ,  C08L51/003 ,  C08J2351/06

    摘要： Expandable styrene polymers of from 95 to 99.5% by weight of polystyrene and from 0.15 to 5% by weight of a styrene-soluble styrene/acrylonitrile copolymer having a total content of not less than 0.15% by weight of acrylonitrile, which contain from 3 to 10% by weight of a C.sub.3 -C.sub.6 -hydrocarbon and may contain conventional additives, give foams which do not shrink. The said styrene polymers can be prepared by suspension polymerization of a solution of the styrene/acrylonitrile copolymer in styrene.

    摘要翻译： 95〜99.5重量％的聚苯乙烯和0.15〜5重量％的苯乙烯可溶性苯乙烯/丙烯腈共聚物的可发性苯乙烯聚合物，其总含量为不小于0.15重量％的丙烯腈，其含有3〜 10重量％的C 3 -C 6烃，并且可以含有常规添加剂，得到不收缩的泡沫体。 所述苯乙烯聚合物可以通过苯乙烯/丙烯腈共聚物在苯乙烯中的溶液的悬浮聚合来制备。

    Heat distortion resistant, expandable styrene polymers having a high capacity of expansion
    13.
    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

    申请人： Klaus Hahn ,  Uwe Guhr ,  Hans Hintz ,  Dietmar Wittenberg

    发明人： Klaus Hahn ,  Uwe Guhr ,  Hans Hintz ,  Dietmar Wittenberg

    IPC分类号： C08J9/00 ,  C08J9/20

    CPC分类号： C08J9/20 ,  C08J9/0061 ,  C08J2325/06

    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。

    Preparation of bead-form expandable styrene polymers
    16.
    发明授权
    Preparation of bead-form expandable styrene polymers 失效
    珠状可发性苯乙烯聚合物的制备

    公开(公告)号：US4980381A

    公开(公告)日：1990-12-25

    申请号：US532741

    申请日：1990-06-04

    申请人： Hans Hintz ,  Uwe Guhr ,  Klaus Hahn ,  Hans G. Keppler

    发明人： Hans Hintz ,  Uwe Guhr ,  Klaus Hahn ,  Hans G. Keppler

    IPC分类号： C08F2/20 ,  C08F2/44 ,  C08F12/00 ,  C08F12/08 ,  C08J9/20

    CPC分类号： C08J9/20 ,  C08J2325/04

    摘要： Bead-form expandable styrene polymers are obtained by suspension polymerization of styrene with addition of from 1 to 10% by weight of C.sub.3 - to C.sub.6 -hydrocarbons as blowing agents and, if desired, customary additives, where(a) the polymerization is initiated by rapidly heating the polymerization batch to form 80.degree. to 90.degree. C. within a maximum of 2 hours,(b) subsequently allowing the reaction temperature to increase to from 120.degree. C. to 130.degree. C. by from 8.degree. to 17.degree. C. per hour, and(c) the conversion is formed 30 to 60% when 100.degree. C. is reached, and(d) the conversion is 80% or more when the maximum temperature is reached, and(e) the batch is subsequently kept at from 100.degree. to 130.degree. C. until the residual monomer content in the polymer has dropped to less than 0.1%.

    摘要翻译： 珠状可发性苯乙烯聚合物通过苯乙烯的悬浮聚合得到，加入1至10重量％的C 3 -C 6烃作为发泡剂，如果需要，加入常规添加剂，其中（a）聚合由 在最多2小时内快速加热聚合批料形成80-90℃，（b）随后使反应温度从120℃升高到130℃，在8℃至17℃ ，（c）当达到100℃时，转化率为30〜60％，（d）当达到最高温度时转化率为80％以上，（e）随后的批次 保持在100℃至130℃，直到聚合物中残留的单体含量降至小于0.1％。

    Expandable styrene polymers containing carbon dioxide as blowing agent
    20.
    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

    申请人： Klaus Hahn ,  Knut Kaempfer ,  Hans Hintz ,  Anthony Schaefer ,  Michael Riethues ,  Michael Witt

    发明人： Klaus Hahn ,  Knut Kaempfer ,  Hans Hintz ,  Anthony Schaefer ,  Michael Riethues ,  Michael Witt

    IPC分类号： C08J9/00 ,  C08J9/18 ,  C08K5/00 ,  C08K5/17 ,  C08L25/04 ,  C08L71/02 ,  C08J9/08

    CPC分类号： C08J9/0061 ,  C08J9/18 ,  C08K5/0008 ,  C08K5/17 ,  C08L25/04 ,  C08J2325/04 ,  C08J2471/00 ,  C08L71/02

    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。