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238 条记录 (耗时 0.042 秒)

    Expandable styrene polymers and their preparation
    92.
    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。

    Expandable styrene polymers and styrene polymer foams
    94.
    发明授权
    Expandable styrene polymers and styrene polymer foams 失效
    可发性苯乙烯聚合物和苯乙烯聚合物泡沫

    公开(公告)号：US4769394A

    公开(公告)日：1988-09-06

    申请号：US126827

    申请日：1987-11-30

    申请人： Klaus Hahn ,  Isidoor De Grave

    发明人： Klaus Hahn ,  Isidoor De Grave

    IPC分类号： C08J9/14 ,  C08J9/16 ,  C08J9/18 ,  C08J9/20 ,  C08K5/09 ,  C08L25/00

    CPC分类号： C08J9/20 ,  C08J9/18 ,  C08J2325/00

    摘要： Expandable styrene polymers and styrene polymer foams having a particularly uniform and fine-cell foam structure contain, as a cell regulator, small amounts of a mixture of resin acids, lower alkyl esters of resin acids or (hydro)abietyl phthalate and a polyoxyethylene monoester or monoether.

    摘要翻译： 具有特别均匀和细胞泡沫结构的可发性苯乙烯聚合物和苯乙烯聚合物泡沫体作为细胞调节剂含有少量的树脂酸，树脂酸的低级烷基酯或邻苯二甲酸（氢化）邻苯二甲酸酯和聚氧乙烯单酯或 单醚

    Preparation of polyurethane foams modified with melamine-formaldehyde precondensates
    96.
    发明授权
    Preparation of polyurethane foams modified with melamine-formaldehyde precondensates 失效
    用三聚氰胺 - 甲醛预缩合物改性的聚氨酯泡沫的制备

    公开(公告)号：US4367294A

    公开(公告)日：1983-01-04

    申请号：US266158

    申请日：1981-05-22

    申请人： Klaus Hahn ,  Peter Horn ,  Matthias Marx ,  Heinz Weber ,  Wolfram Weiss ,  Rolf Wurmb

    发明人： Klaus Hahn ,  Peter Horn ,  Matthias Marx ,  Heinz Weber ,  Wolfram Weiss ,  Rolf Wurmb

    IPC分类号： C08G18/00 ,  C08G12/32 ,  C08G18/54 ,  C08G18/14

    CPC分类号： C08G18/544 ,  C08G12/32

    摘要： A process for the preparation of polyurethane foams modified with melamine-formaldehyde precondensates, in which the precondensates employed are storage-stable, aqueous 40-85% strength by weight resin solutions which are obtained by condensing melamine with formaldehyde in a molar ratio of 1:1.1-1.75 in aqueous solution at a pH which, at least periodically, is above 8, and at from 60 to 130.degree. C., until one part by volume of resin solution can be diluted with from 0.5 to 4 parts by volume of water at 20.degree. C. without causing a persisting cloudiness.

    摘要翻译： 用三聚氰胺 - 甲醛预缩合物改性的聚氨酯泡沫的制备方法，其中使用的预缩合物是储存稳定的40-85％重量的树脂溶液，其通过将三聚氰胺与甲醛以摩尔比1： 在水溶液中，在至少周期性地高于8℃，在60-130℃的pH下，直到一分一份体积的树脂溶液可以用0.5至4体积份的水稀释， 在20℃下，不会引起持续的混浊。

    Method for producing expandable granulates containing polylactic acid
    99.
    发明授权
    Method for producing expandable granulates containing polylactic acid 有权
    用于生产含有聚乳酸的可膨胀颗粒的方法

    公开(公告)号：US09212270B2

    公开(公告)日：2015-12-15

    申请号：US13522031

    申请日：2011-01-06

    申请人： Andreas Füβl ,  Bangaru Sampath ,  Maximilian Hofmann ,  Ingo Bellin ,  Sameer Nalawade ,  Klaus Hahn ,  Andreas Künkel ,  Robert Loos

    发明人： Andreas Füβl ,  Bangaru Sampath ,  Maximilian Hofmann ,  Ingo Bellin ,  Sameer Nalawade ,  Klaus Hahn ,  Andreas Künkel ,  Robert Loos

    IPC分类号： C08J9/16 ,  C08J9/18 ,  C08L67/02 ,  C08J9/00 ,  C08L67/04 ,  C08L33/06

    CPC分类号： C08J9/127 ,  C08J9/0061 ,  C08J9/16 ,  C08J9/18 ,  C08J2333/14 ,  C08J2367/02 ,  C08J2367/04 ,  C08J2463/00 ,  C08J2467/02 ,  C08L33/068 ,  C08L67/02 ,  C08L67/04 ,  C08L2666/02

    摘要： The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 50 to 99.9% by weight, based on the total weight of components i to iii), of polylactic acid, ii) from 0 to 49.9% by weight, based on the total weight of components i to iii), of one or more further polymers, iii) from 0.1 to 2% by weight, based on the total weight of components i to iii), of a diepoxide or polyepoxide, and iv) from 0 to 10% by weight of one or more additives, b) incorporation by mixing of v) from 3 to 7% by weight, based on the total weight of components i to iv), of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 20 bar. The invention further relates to expandable pelletized material which comprises polylactic acid and which is obtainable by said process, and also to specific expandable pelletized material which comprises polylactic acid and which has a proportion of from 3 to 7% by weight of an organic blowing agent, preferably n-pentane and particularly preferably isopentane. The invention further relates to a preferred process for producing expandable pelletized material which comprises blowing agent and which comprises polylactic acid, and which has low bulk density.

    摘要翻译： 本发明涉及一种生产可膨胀颗粒材料的方法，其包括聚乳酸，其包括以下步骤：a）通过混合以下组分熔融和掺入：i）基于组分的总重量为50至99.9重量％ ii）0至49.9重量％，基于组分i至iii的总重量），一种或多种其它聚合物，iii）基于以下物质的0.1至2重量％，基于 组分i至iii），二环氧化物或聚环氧化物的总重量，和iv）0至10重量％的一种或多种添加剂，b）通过混合v）3至7重量％，基于 通过静态或动态混合器在至少140℃的温度下将有机发泡剂的总成分重量分配到聚合物熔体中，c）通过具有孔的模板排出，直径 其中在模具的出口处至多为1.5mm，以及d）将熔体造粒， 直接在模板的下游，并在水下，在1至20巴的压力范围内。 本发明还涉及包含聚乳酸并且可通过所述方法获得的可膨胀颗粒材料，还涉及包含聚乳酸并且具有3-7重量％的有机发泡剂的比例的特定的可膨胀颗粒状材料， 优选正戊烷，特别优选异戊烷。 本发明还涉及一种用于生产可膨胀颗粒材料的优选方法，其包括发泡剂，其包含聚乳酸，并且其堆积密度低。