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24 条记录 (耗时 0.027 秒)

    Process for preparing TPU molding compositions
    8.
    发明授权
    Process for preparing TPU molding compositions 失效
    制备TPU模塑组合物的方法

    公开(公告)号：US5981655A

    公开(公告)日：1999-11-09

    申请号：US006064

    申请日：1998-01-12

    申请人： Herbert Heidingsfeld ,  Willi Meister ,  Bernhard Schulte ,  Wolfgang Brauer ,  Friedemann Muller ,  Hans-Georg Hoppe ,  Hans-Georg Wussow ,  Jurgen Winkler

    发明人： Herbert Heidingsfeld ,  Willi Meister ,  Bernhard Schulte ,  Wolfgang Brauer ,  Friedemann Muller ,  Hans-Georg Hoppe ,  Hans-Georg Wussow ,  Jurgen Winkler

    IPC分类号： C08L55/02 ,  C08G18/00 ,  C08G18/08 ,  C08G18/65 ,  C08L55/00 ,  C08L75/00 ,  C08L75/04 ,  C08L101/00

    CPC分类号： C08L75/04 ,  C08G18/0895

    摘要： A process for the continuous production of a thermoplastic molding composition containing a mixture of a TPU and a thermoplastic (co)polymer is disclosed. The process comprises(i) introducing into an extruder via a first feed point component I) with at least 3% by weight, with respect to component I), of at least one member selected from the group consisting of components A), B) and C), and(ii) metering in the balance of said A), B) and C) into said extruder via one or more subsequent feed points,(iii) extruding components I) and II) under conditions sufficient to cause A), B) and C) reaction to form TPU, and(iv) upon the completion of said reaction, removing the resulting mixture of TPU and (co)polymer from the extruder,wherein component I) comprises 1 to 60% by weight, with respect to the total mixture, of a thermoplastic (co)polymer, and wherein component II) comprises 99 to 40% by weight, with respect to the total mixture, of the polyurethane-forming components including A) an organic diisocyanate, B) a linear polyol having terminal hydroxyl groups and a number average molecular weight of 500 to 5000, and C) a chain extender having a molecular weight of 60 to 500, and wherein the molar ratio of NCO groups in A) to the groups which react with NCO in B) and C) is in the range of 0.9 to 1.2.

    摘要翻译： 公开了一种用于连续生产含有TPU和热塑性（共）聚合物的混合物的热塑性模塑组合物的方法。 该方法包括（i）通过第一进料点组分I）向至少一种选自组分A），B）中的至少一种成分引入至少3重量％的挤出机，相对于组分I） 和（ii）在所述A），B）和C）的余量中通过一个或多个后续进料点将所述A），B）和C）的余量计量加入到所述挤出机中，（iii）在足以导致A）和 ，B）和C）反应形成TPU，和（iv）在完成所述反应后，从挤出机中除去所得TPU和（共）聚合物的混合物，其中组分I）包含1至60重量％ 相对于总混合物，热塑性（共）聚合物，并且其中组分II）包含相对于总混合物的99至40重量％的形成聚氨酯的组分，包括A）有机二异氰酸酯，B） 具有末端羟基，数均分子量为500〜5000的直链状多元醇，C）扩链剂 分子量为60至500，并且其中A）中的NCO基团与在B）和C）中与NCO反应的基团的摩尔比在0.9至1.2的范围内。

    Aliphatic, low-emission thermoplastic polyurethane molding materials suitable for sintering
    9.
    发明授权
    Aliphatic, low-emission thermoplastic polyurethane molding materials suitable for sintering 失效
    脂肪，低排放热塑性聚氨酯成型材料适用于烧结

    公开(公告)号：US06420510B1

    公开(公告)日：2002-07-16

    申请号：US09581771

    申请日：2000-06-16

    申请人： Wolfgang Kaufhold ,  Hans-Georg Hoppe ,  Herbert Heidingsfeld ,  Rainer Ohlinger ,  Michael Kalbe

    发明人： Wolfgang Kaufhold ,  Hans-Georg Hoppe ,  Herbert Heidingsfeld ,  Rainer Ohlinger ,  Michael Kalbe

    IPC分类号： C08G1842

    CPC分类号： C08G18/0895 ,  C08G18/4277 ,  C08G18/44 ,  C08G18/664 ,  C08G2140/00

    摘要： Polyurethane moulding compositions which can be melt processed in the form of sintering powders suitable for the preparation of grained sintered films and which are prepared exclusively from linear aliphatic components are described. The polyol component is composed of 30 to 80 parts by weight of an aliphatic polycarbonate diol with an average molecular weight {overscore (M)}n of 1000 to 2200 and 70 to 20 parts by weight of a polybutane diol adipate and/or a polycaprolactone diol with an average molecular weight {overscore (M)}n of 1000 to 2400. Moreover, the mixture contains 1,6-hexamethylene diisocyanate in an equivalence ratio of 2.3:1.0 to 6.2:1.0, based on the polyol mixture and butane-1,4-diol as chain extender, the equivalence ratio of the butane-1,4-diol based on the poly mixture being 1.3:1.0 to 5.2:1.0.

    摘要翻译： 描述了可以熔融加工形式的聚氨酯模塑组合物，其以适于制备颗粒烧结薄膜的烧结粉末形式，并且仅由线性脂族组分制备。 多元醇组分由30至80重量份的平均分子量（超核（M）} n为1000至2200的脂族聚碳酸酯二醇和70至20重量份的己二酸聚丁二醇酯和/或聚己内酯 二醇，其平均分子量（超芯（M））n为1000〜2400。此外，基于多元醇混合物和丁烷 - 二异氰酸酯，混合物含有当量比为2.3:1.0至6.2:1.0的1,6-六亚甲基二异氰酸酯， 作为扩链剂的1,4-二醇，基于聚合物的丁烷-1,4-二醇的当量比为1.3:1.0至5.2:1.0。