利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.016 秒)

    Process for the preparation of polyurethane foams
    12.
    发明授权
    Process for the preparation of polyurethane foams 失效
    制备聚氨酯泡沫的方法

    公开(公告)号：US5017623A

    公开(公告)日：1991-05-21

    申请号：US396481

    申请日：1989-08-21

    申请人： Peter Haas ,  Hans Hettel ,  Andreas Ruckes

    发明人： Peter Haas ,  Hans Hettel ,  Andreas Ruckes

    IPC分类号： C08J9/02 ,  C08G18/00 ,  C08G18/08 ,  C08G18/38 ,  C08G18/40 ,  C08G18/63 ,  C08J9/00 ,  C08K5/16 ,  C08K5/20 ,  C08K5/21 ,  C08K5/315 ,  C08L75/00 ,  C08L75/04

    CPC分类号： C08J9/0028 ,  C08G18/3823 ,  C08G18/3838 ,  C08G18/3848 ,  C08G18/40 ,  C08G18/409 ,  C08G18/632 ,  C08K5/20 ,  C08K5/21 ,  C08K5/315 ,  C08G2101/0083 ,  C08J2375/04

    摘要： This invention relates to a process for the preparation of polyurethane foams comprising reacting polyisocyanates with compounds containing at least two active hydrogen atoms and having a molecular weight of 400 to 10,000 selected from polymer-modified polyols and polyols containing predominantly primary hydroxyl groups, in the presence of water and/or organic blowing agents, catalysts, and flameproofing agents having the formula ##STR1## in which R.sup.1 and R.sup.2 are independently hydrogen or C.sub.1 -C.sub.4 alkyl;X is --(CH.sub.2).sub.n -- wherein n is an integer of from 0 to 5 (preferably 0 or 1), --CH.dbd.CH--, a branched alkylene group, an arylene group, or (NH).sub.m wherein m is 1 or 2;Y is --CN or ##STR2## wherein R.sup.1 and R.sup.2 are as defined above or both R.sup.2 together form a bond.The reaction is optionally carried out in the presence of other flameproofing agents, compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of 32 to 399, and known surface-active additives and auxiliaries.

    摘要翻译： 本发明涉及一种制备聚氨酯泡沫体的方法，其包括使多异氰酸酯与含有至少两个活性氢原子并且分子量为400至10,000的化合物反应，所述化合物在选自聚合物改性的多元醇和主要含伯羟基的多元醇中存在 的具有式“IMAGE”的水和/或有机发泡剂，催化剂和防火剂，其中R 1和R 2独立地是氢或C 1 -C 4烷基; X为 - （CH 2）n - ，其中n为0至5（优选0或1）的整数，-CH = CH-，支链亚烷基，亚芳基或（NH）m，其中m为1或 2; Y是-CN或，其中R 1和R 2如上所定义，或两个R 2一起形成键。 反应任选在其它防火剂，含有至少两个异氰酸酯反应性氢原子的化合物和分子量为32至399的化合物和已知的表面活性添加剂和助剂的存在下进行。

    Process for the preparation of polyurea elastomers containing urethane groups
    14.
    发明授权
    Process for the preparation of polyurea elastomers containing urethane groups 失效
    制备含氨基甲酸酯基团的聚脲弹性体的方法

    公开(公告)号：US5262448A

    公开(公告)日：1993-11-16

    申请号：US515885

    申请日：1990-04-27

    申请人： Andreas Ruckes ,  Hans-Joachim Meiners ,  Heinrich Boden ,  Manfred Schmidt

    发明人： Andreas Ruckes ,  Hans-Joachim Meiners ,  Heinrich Boden ,  Manfred Schmidt

    IPC分类号： C08G18/66 ,  C08G18/10 ,  C08G18/50 ,  C08G18/65 ,  C08G18/76

    CPC分类号： C08G18/5048 ,  C08G18/10 ,  C08G18/5024 ,  C08G2101/0008 ,  C08G2101/0033 ,  C08G2101/0066 ,  C08G2120/00

    摘要： The present invention relates to a process for the production of an optionally cellular elastomeric molded article having a compact surface and based on a polyurea elastomer containing urethane groups which is the reaction product ofa) a polyisocyanate component based on a polyisocyanate of the diphenylmethane series,b) a polyol component based on a polyether polyol, a polyester polyol or mixtures thereof andc) a polyamine component containing1) 50 to 95% by weight, based on the weight of component c), of at least one sterically hindered aromatic diamine and2) 5 to 50% by weight, based on the weight of component c), of at least one compound which has a molecular weight of about 1,000 to 12,000,by reacting component a) with at least 90% by weight of component b) at an NCO/OH equivalent ratio of at least 4:1 to form an NCO semi-prepolymer and subsequently reacting the NCO semi-prepolymer with component c) and the remainder of component b) by the reaction injection molding process to form the polyurea elastomer containing urethane groups, component c) being present in an amount sufficient to provide an isocyanate index, based on the reactive groups of components a), b) and c), of 70 to 130.

    摘要翻译： 本发明涉及一种制备具有紧凑表面并且基于含有氨基甲酸酯基团的聚脲弹性体的任选多孔弹性体模塑制品的方法，该聚脲弹性体是a）基于二苯基甲烷系列的多异氰酸酯的多异氰酸酯组分的反应产物， b）基于聚醚多元醇，聚酯多元醇或其混合物的多元醇组分和c）多胺组分，其含有1）基于组分c）的重量计50至95重量％的至少一种空间位阻芳族二胺 和2）基于组分c）重量的5-50重量％的至少一种分子量为约1,000至12,000的化合物，通过使组分a）与至少90重量％的组分b ），以至少4:1的NCO / OH当量比形成NCO半预聚物，随后通过反应注射成型工艺t将NCO半预聚物与组分c）和组分b）的剩余部分反应 o形成含有氨基甲酸酯基团的聚脲弹性体，组分c）以足以提供异氰酸酯指数的量存在，基于组分a），b）和c）的反应性基团为70至130。