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    Process for the continuous production of thermoplastic polyurethane elastomers
    1.
    发明授权
    Process for the continuous production of thermoplastic polyurethane elastomers 失效
    连续生产热塑性聚氨酯弹性体的方法

    公开(公告)号：US5567791A

    公开(公告)日：1996-10-22

    申请号：US391507

    申请日：1995-02-21

    申请人： Wolfgang Br auer ,  Friedemann M uller ,  Herbert Heidingsfeld ,  Bernhard Schulte ,  J urgen Winkler

    发明人： Wolfgang Br auer ,  Friedemann M uller ,  Herbert Heidingsfeld ,  Bernhard Schulte ,  J urgen Winkler

    IPC分类号： C08G18/08 ,  C08G18/16 ,  C08G18/22 ,  C08G18/65 ,  C08G18/18 ,  C08G18/24

    CPC分类号： C08G18/6505 ,  C08G18/0895 ,  C08G18/16 ,  C08G18/22 ,  C08G2250/00

    摘要： A method whereby the properties, particularly the recrystallisation temperature, of thermoplastic polyurethane elastomers, particularly those suitable for processing by extrusion, are kept constant during continuous manufacture in screw-type extruding machines by continuously adding substantially straight-chain hydroxyl-terminated polyols having a molecular weight of 500 to 5000, organic diisoicyanates and diol and optionally triol chain-lengthening agents having a molecular weight of 62 to 500, the molar ratio of polyols to chain-lengthening agents being 1:1 to 1:5, and by continuous addition of a catalyst, wherein the recrystallisation temperature is set at a value at least 2.degree. C. below the value for the corresponding TPU manufactured without a catalyst, and when the set recrystallisation temperature is exceeded, the amount of continuously supplied catalyst is increased, whereas when the value falls below, the amount is decreased so as to maintain the set value, the resulting elastomers and use thereof for extrusion.

    摘要翻译： 通过连续添加具有分子量的基本上直链的羟基封端的多元醇的方法，其中热塑性聚氨酯弹性体的特性，特别是重结晶温度，特别是适用于挤出加工的那些的特性在螺杆型挤出机的连续制造期间保持恒定 重量为500至5000，有机二异氰酸酯和二醇以及任选的三醇链延长剂，其分子量为62至500，多元醇与延长剂的摩尔比为1:1至1:5，并通过连续添加 催化剂，其中重结晶温度设定在低于催化剂制备的相应TPU值至少2℃的值，当超过设定的再结晶温度时，连续供应的催化剂的量增加，而当 该值下降，减少量以便保持设定值，从而产生弹性 omers及其用于挤出的用途。

    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。

    Process for the production of optically isotropic extrusion films
    10.
    发明授权
    Process for the production of optically isotropic extrusion films 失效
    用于生产光学等压挤出膜的方法

    公开(公告)号：US5076987A

    公开(公告)日：1991-12-31

    申请号：US504482

    申请日：1990-04-04

    申请人： Joachim Wank ,  Hans L. Weber ,  Claus Burkhardt ,  Dieter Freitag ,  Bernhard Schulte ,  Werner Waldenrath

    发明人： Joachim Wank ,  Hans L. Weber ,  Claus Burkhardt ,  Dieter Freitag ,  Bernhard Schulte ,  Werner Waldenrath

    IPC分类号： B29C59/00 ,  B29C43/22 ,  B29C47/00 ,  B29C59/04 ,  B29C71/00 ,  B29D7/01 ,  B29D11/00

    CPC分类号： B29C43/222 ,  B29D11/00 ,  B29D7/01 ,  B29C47/00 ,  B29C47/0021 ,  B29K2069/00 ,  B29K2995/0022 ,  B29K2995/0024 ,  B29K2995/0045

    摘要： A process for the production of optically isotropic extrusion films is disclosed. Accordingly in a first process step a thermoplsatic resin is extruded to form a film having a thickness below 600 .mu.m. The second process step entailsa) calendering said film between a ground elastic roller and a high gloss steel roller to produce a film having a high gloss surface and a matt surface, orb) calendering said film between a lacquered elastic roller and a high gloss steel roller to produce a film having high gloss on both surfaces, orc) calendering said film between a ground elastic roller and a high gloss steel roller to produce a film having a high gloss surface and a matt surface, and then coating said matt surface with a melt of said thermoplastic polymer and calendering the resulting coated film between a high gloss steel roller and a ground elastic roller, with the high gloss side of the coated film facing the roller of elastic material.

    摘要翻译： 公开了一种制备光学各向同性挤出膜的方法。 因此，在第一工艺步骤中，将热塑性树脂挤出以形成厚度低于600μm的膜。 第二工艺步骤需要a）在接地弹性辊和高光泽钢辊之间压延所述膜以产生具有高光泽表面和无光泽表面的膜，或b）在漆层弹性辊和高光泽度之间压延所述膜 钢辊，以在两个表面上产生具有高光泽度的膜，或c）在接地弹性辊和高光泽钢辊之间压延所述膜以产生具有高光泽表面和无光泽表面的膜，然后涂覆所述亚光表面 用所述热塑性聚合物的熔体将所得的涂膜压延在高光泽的钢辊和研磨的弹性辊之间，涂膜的高光泽面与弹性材料的辊相对。