Internal mould release compositions
    32.
    发明公开
    Internal mould release compositions 失效
    Inneres Formtrennmittel。

    公开(公告)号:EP0335619A2

    公开(公告)日:1989-10-04

    申请号:EP89302967.8

    申请日:1989-03-23

    IPC分类号: B29C33/60 B29C33/62 C08K5/09

    摘要: An internal mould release composition, suitable for use in the production of moulded articles by the RIM process comprising :

    a) a metal salt of an organic acid, said metal salt having mould release properties, and
    b) a polymer having a molecular weight of at least 1500 containing at least two guanidine or isourea groups of the formula :
    wherein A represents
    and wherein each of Q¹ and Q², independently, represents hydrogen, alkyl or cycloalkyl and each of Q³ and Q⁴, independently, represents hydrogen, alkyl, cycloalkyl, arakyl or aryl.

    摘要翻译: 一种适用于通过RIM方法生产模塑制品的内部脱模组合物,包括:a)有机酸的金属盐,所述金属盐具有脱模性能,和b)分子量为 至少1500个含有至少两个下式的胍或异脲基团:其中A表示,其中Q 1和Q 2各自独立地表示氢,烷基或环烷基, 3>和Q 4独立地代表氢,烷基,环烷基,芳烷基或芳基。 ñ

    Use of amidines for stabilizing polyols mixtures
    36.
    发明公开
    Use of amidines for stabilizing polyols mixtures 失效
    异氰酸酯 - 维生素E。

    公开(公告)号:EP0471474A2

    公开(公告)日:1992-02-19

    申请号:EP91307020.7

    申请日:1991-07-31

    IPC分类号: C08G18/20 C08G18/66 C08K5/34

    摘要: An isocyanate-reactive composition having a plurality of isocyanate-reactive groups comprising :

    (i) at least one polyol having a number average molecular weight of from 2000 to 12,000;
    (ii) at least one low molecular weight polyol, including water, immiscible in said high molecular weight compound and having a molecular weight in the range of 18-500; and
    (iii) a compatibilising amount of an amidine compound of the Formula (1)


    wherein each of R¹ to R⁴ represent H or, independently or together, an organic radical selected from :

    (a) alkyl radicals having 1 to 25 carbon atoms;
    (b) cyclo alkyl radicals having 5 to 25 carbon atoms;
    (c) aralkyl and/or aryl radicals having 6 to 18 carbon atoms, and
    (d) polymeric chains containing hetero atoms selcted from polyether, polythioether, polyester, polycarbonate and polyacetal chains.

    The amidine improves the stability of compositions comprising high and low molecular weight polyols.

    摘要翻译: 具有多个异氰酸酯反应性基团的异氰酸酯反应性组合物,其包含:(i)至少一种数均分子量为2000至12,000的多元醇; (ii)至少一种低分子量多元醇,包括水,在所述高分子量化合物中不混溶,分子量范围为18-500; 和(iii)相容量的式(1)脒化合物其中R 1至R 4各自表示H或独立地或一起表示选自以下的有机基团:(a) 具有1至25个碳原子的基团; (b)具有5至25个碳原子的环烷基; (c)具有6至18个碳原子的芳烷基和/或芳基,和(d)含有从聚醚,聚硫醚,聚酯,聚碳酸酯和聚缩醛链中分离的杂原子的聚合物链。 脒改善了包含高分子量和低分子量多元醇的组合物的稳定性。

    Elastomers
    38.
    发明公开
    Elastomers 失效
    弹性体。

    公开(公告)号:EP0392710A1

    公开(公告)日:1990-10-17

    申请号:EP90303413.0

    申请日:1990-03-30

    摘要: A polyurea elastomer comprising the reaction product of an organic polyisocyanate, an aromatic amine-terminated chain extender, an isocyanate-reactive amine having a molecular weight of at least 200 and at least two isocyanate-­reactive groups at least 50 % of which are aliphatically bound primary and/or secondary amino groups and an aldehyde or ketone in an amount equivalent to at least 5 % of the aliphatic amino group content of the isocyanate-reactive amine.

    摘要翻译: 一种聚脲弹性体,其包含有机多异氰酸酯,芳族胺封端的增链剂,分子量至少为200的异氰酸酯反应性胺和至少两种其中至少50%的异氰酸酯反应性基团的反应产物的脂肪族结合的反应产物 伯和/或仲氨基和醛或酮,其量相当于异氰酸酯 - 反应性胺的脂族氨基含量的至少5%。