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    • 2. 发明授权
    • Polymer-containing polyether polyamines and a process for the production
of these polyamines
    • 含聚合物的聚醚多胺和这些多胺的制备方法
    • US4532266A
    • 1985-07-30
    • US360037
    • 1982-03-19
    • Werner RasshoferGerhard BalleDieter DieterichHolger Meyborg
    • Werner RasshoferGerhard BalleDieter DieterichHolger Meyborg
    • C08G18/10C08G18/12C08G18/50C08G18/63C07C127/15C07C127/24
    • C08G18/632C08G18/10C08G18/12C08G18/5048
    • Polyether-based urethane-group-containing polyamines containing polymers and/or copolymers of unsaturated monomers and, optionally, urea and/or biuret and/or allophanate groups are produced by (a) reacting an NCO-prepolymer in aqueous alkaline solution at 0.degree. to 40.degree. C. to form a carbamate; (b) converting this carbamate to an amine by adding an ion exchanger to the reaction mixture; and (c) separating the polyamine from the reaction mixture. The NCO-prepolymers used as starting materials are prepolymers of (i) polyalkylene ether polyols having a molecular weight of from 1,000 to 10,000 containing from 1 to 60 wt. % of graft (co)polymers of unsaturated monomers; and (ii) excess molar quantities of organic polyisocyanate; and optionally, (iii) a low molecular weight chain-extending agent. The product polyamines have a molecular weight of from 1,000 to 10,000 and contain from 0.65 to 59.3 wt. % graft (co)polymer and from 0.11 to 2.9 wt. % terminal NH.sub.2 groups attached to the ethers by urethane groups in the polyisocyanate. The product polyamines are particularly useful in the production of polyurethanes.
    • 通过(a)使NCO预聚物在0℃的碱性水溶液中反应,制备含有聚氨酯基的聚胺和/或不饱和单体和任选的脲和/或缩二脲和/或脲基甲酸酯基团的聚合物和/ 至40℃以形成氨基甲酸酯; (b)通过向反应混合物中加入离子交换剂将该氨基甲酸酯转化为胺; 和(c)从反应混合物中分离多胺。 用作原料的NCO-预聚物是(i)分子量为1,000至10,000的聚亚烷基醚多元醇的预聚物,其含有1至60wt。 %的不饱和单体的接枝(共)聚合物; 和(ii)有机多异氰酸酯的过量摩尔数; 和(iii)低分子量链增长剂。 产物多胺的分子量为1,000至10,000,含有0.65至59.3重量% %的接枝(共)聚合物和0.11-2.9重量% 通过多异氰酸酯中的氨基甲酸酯连接到醚上的末端NH 2基团。 产物多胺在聚氨酯的生产中特别有用。
    • 10. 发明授权
    • Process for the production of plastic based on polyisocyanates
    • 基于多异氰酸酯生产塑料的方法
    • US4440901A
    • 1984-04-03
    • US509910
    • 1983-07-01
    • Helmut ReiffDieter Dieterich
    • Helmut ReiffDieter Dieterich
    • C08G18/00C08G18/10C08G18/34C08G18/42C08G18/48C08G18/65C08G18/73C08G18/75
    • C08G18/75C08G18/10C08G18/34C08G18/4263C08G18/4887
    • The present invention is directed to a process for the production of plastics based on an isocyanate-polyaddition product by(1) forming an isocyanate group-containing prepolymer from(a) a compound which has a molecular weight of from 146 to about 10,000, is substantially free from hydroxyl groups, contains at least two terminal carboxyl groups and optionally contains ether and/or ester groups,(b) excess quantities of an organic nonaromatic polyisocyanate which has at least one cyclohexane ring and exclusively contains aliphatically- and/or cycloaliphatically-bound isocyanate groups and(c) up to 10 equivalent percent, based on the isocyanate-reactive groups in component (a), of a compound which is monofunctional for the purposes of the isocyanate-addition reaction and,(2) reacting the product of step (1) with(d) a chain-lengthening agent such as water, a polyamine containing at least two primary and/or secondary amino groups or hydrazine or a derivative thereof containing at least two primary and/or secondary amino groups.
    • 本发明涉及通过(1)从(a)分子量为146至约10,000的化合物形成含异氰酸酯基的预聚物来生产基于异氰酸酯加聚产物的塑料的方法,是 基本上不含羟基,含有至少两个末端羧基并且任选地含有醚和/或酯基,(b)过量的有机非芳族聚异氰酸酯,其具有至少一个环己烷环并且仅含有脂族和/或脂环 结合异氰酸酯基团和(c)基于组分(a)中异氰酸酯反应性基团的异氰酸酯加成反应中单官能化合物的至多10当量%,和(2)使 步骤(1)与(d)链增长剂如水,含有至少两个伯和/或仲氨基的多胺或肼或其衍生物至少包含 两个伯和/或仲氨基。