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20 条记录 (耗时 0.022 秒)

    Process for the production of flexible slabstock polyurethane foams
    15.
    发明授权
    Process for the production of flexible slabstock polyurethane foams 失效
    柔性板料聚氨酯泡沫的生产工艺

    公开(公告)号：US4970243A

    公开(公告)日：1990-11-13

    申请号：US361896

    申请日：1989-06-06

    申请人： Gundolf Jacobs ,  Peter Haas ,  Hans-Walter Illger ,  Hans-Joachim Kogelnik ,  Klaus-Dieter Wolf

    发明人： Gundolf Jacobs ,  Peter Haas ,  Hans-Walter Illger ,  Hans-Joachim Kogelnik ,  Klaus-Dieter Wolf

    IPC分类号： C08J9/02 ,  C08G18/00 ,  C08G18/08 ,  C08G18/72 ,  C08G18/76 ,  C08J9/08

    CPC分类号： C08J9/08 ,  C08G18/08 ,  C08G18/72 ,  C08G18/7621 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0075 ,  C08G2101/0083 ,  C08J2375/04

    摘要： This invention relates to a process for the production of elastic, open-cell flexible slabstock polyurethane foams comprising reacting at an isocyanate index less than about 80 one or more polyisocyanates selected from the group tolylene diisocyanates, hexamethylene diisocyanate, and isophorone diisocyanate, with compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of about 400 to about 10,000, in the presence of water as blowing agent in a quantity of about 5 to about 15 parts by weight for every 100 parts by weight of the isocyanate-reactive compound. The process may optionally include chain-extending and crosslinking agents containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of about 32 to about 399, and may optionally be carried out in the presence of other blowing agents, catalysts, auxiliaries, and additives.

    摘要翻译： 本发明涉及一种生产弹性开孔柔性板坯聚氨酯泡沫的方法，包括使异氰酸酯指数小于约80的一种或多种选自二甲苯基二异氰酸酯，六亚甲基二异氰酸酯和异佛尔酮二异氰酸酯的多异氰酸酯与含有 至少两个异氰酸酯反应性氢原子，分子量为约400至约10,000，在作为发泡剂的水存在下，每100重量份异氰酸酯 - 反应性氢原子的量为约5至约15重量份， 反应性化合物。 该方法可以任选地包括含有至少两个异氰酸酯反应性氢原子并具有约32至约399的分子量的链延伸和交联剂，并且可以任选地在其它发泡剂，催化剂，助剂， 和添加剂。

    METHOD FOR PRODUCING FLEXIBLE POLYURETHANE FOAMS
    17.
    发明申请
    METHOD FOR PRODUCING FLEXIBLE POLYURETHANE FOAMS 有权
    生产柔性聚氨酯泡沫塑料的方法

    公开(公告)号：US20130261203A1

    公开(公告)日：2013-10-03

    申请号：US13885694

    申请日：2011-11-18

    申请人： Norbert Hahn ,  Sven Meyer-Ahrens ,  Gundolf Jacobs ,  Bernd Dohmen

    发明人： Norbert Hahn ,  Sven Meyer-Ahrens ,  Gundolf Jacobs ,  Bernd Dohmen

    IPC分类号： C08J9/12

    CPC分类号： C08J9/125 ,  C08G18/36 ,  C08G18/8051 ,  C08G2101/0008

    摘要： The present invention relates to a method for producing flexible polyurethane foams, wherein an isocyanate component (component B) which comprises fatty acid derivatives comprising hydroxyl groups is used as starting substance. The flexible polyurethane foams according to the invention have a bulk density according to DIN EN ISO 3386-1-98 in the range of ≧10 kg/m3 to ≦150 kg/m3, preferably ≧20 kg/m3 to ≦70 kg/m3, and in general their compressive strength according to DIN EN ISO 3386-1-98 is in the range of ≧0.5 kPa to ≦20 kPa (at 40% deformation and 4th cycle). The invention also provides an NCO-terminated prepolymer comprising urethane groups obtainable by reaction of one or more polyisocyanates (B1) with one or more fatty acid derivatives comprising hydroxyl groups (B2).

    摘要翻译： 本发明涉及柔性聚氨酯泡沫的制造方法，其中使用包含羟基的脂肪酸衍生物的异氰酸酯成分（B成分）作为原料。 根据本发明的柔性聚氨酯泡沫具有根据DIN EN ISO 3386-1-98的体积密度，范围> 10kg / m 3至@ 150kg / m 3，优选> = 20kg / m 3至@ 70kg / m3，并且一般来说，根据DIN EN ISO 3386-1-98的抗压强度在> = 0.5kPa至@ 20kPa（在40％变形和第四循环）的范围内。 本发明还提供了包含可通过一种或多种多异氰酸酯（B1）与一种或多种包含羟基（B2）的脂肪酸衍生物反应获得的氨基甲酸酯基团的NCO封端的预聚物。

    Continuous process for the preparation of highly stable, finely divided, low viscosity polymer polyols of small average particle size
    18.
    发明授权
    Continuous process for the preparation of highly stable, finely divided, low viscosity polymer polyols of small average particle size 失效
    用于制备平均粒度小的高度稳定，细分，低粘度的聚合物多元醇的连续方法

    公开(公告)号：US5814699A

    公开(公告)日：1998-09-29

    申请号：US723659

    申请日：1996-10-03

    申请人： Mark R. Kratz ,  Manfred Dietrich ,  Torsten Heinemann ,  Gundolf Jacobs ,  Josef Sanders ,  Helmut Woynar

    发明人： Mark R. Kratz ,  Manfred Dietrich ,  Torsten Heinemann ,  Gundolf Jacobs ,  Josef Sanders ,  Helmut Woynar

    IPC分类号： C08F212/10 ,  C08F220/42 ,  C08F220/44 ,  C08F283/06 ,  C08F285/00 ,  C08F290/02 ,  C08G18/63 ,  C08F283/02

    CPC分类号： C08G18/635 ,  C08F290/02 ,  C08G2101/0008 ,  C08G2101/0016

    摘要： A continuous process for the preparation of highly stable, finely divided, low viscosity polymer polyols of small average particle size wherein in the first step an intermediate is prepared by reacting (1) a mixture of at least two ethylenically unsaturated monomers, preferably styrene and acrylonitrile, in a mixture comprising (2) a base polyol and (3) a macromer in the presence of (4) a free radical initiator, (5) a solvent having moderate chain transfer activity, and, optionally, (6) a reaction moderator at a temperature of at least 100.degree. C., such that the intermediate contains at least about 12% by weight of macromer, based on the weight of the base polyol and macromer, and a solids content of at least about 15% by weight and less than about 30% by weight, based on the weight of the base polyol, macromer and ethylenically unsaturated monomers. The intermediate, which functions as a seed for further polymerization, is then further reacted, in one or more stirred-tank reactors in series, in a mixture of at least two ethylenically unsaturated monomers, preferably styrene and acrylonitrile, in a base polyol and, optionally, a macromer, in the presence of solvent, initiator and a reaction moderator which are distributed among the remaining reactors.

    摘要翻译： 一种用于制备平均粒度小的高度稳定，细分，低粘度的聚合物多元醇的连续方法，其中在第一步中，通过使（1）至少两种烯属不饱和单体，优选苯乙烯和丙烯腈的混合物 在（4）自由基引发剂，（5）具有中等链转移活性的溶剂的存在下，（2）基础多元醇和（3）大分子单体的混合物中，和（6）反应调节剂 在至少100℃的温度下，使得中间体含有至少约12重量％的大分子单体，基于基础多元醇和大分子单体的重量，固体含量至少约15重量％，和 小于约30重量％，基于基础多元醇，大分子单体和烯属不饱和单体的重量。 作为进一步聚合的种子的中间体在一个或多个串联的搅拌釜反应器中在基础多元醇中进一步在至少两种烯属不饱和单体，优选苯乙烯和丙烯腈的混合物中反应， 任选地，大分子单体在溶剂，引发剂和反应缓和剂的存在下分布在剩余的反应器中。