会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 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。
    • 8. 发明授权
    • Process for the preparation of polyurethane casting elastomers
    • 制备聚氨酯浇铸弹性体的方法
    • US4263423A
    • 1981-04-21
    • US057936
    • 1979-07-16
    • Jurgen SchwindtHolger MeyborgGerhard GroglerKlaus Recker
    • Jurgen SchwindtHolger MeyborgGerhard GroglerKlaus Recker
    • C08G18/00C08G18/22C08G18/72C08G18/73C08G18/16C08G18/24C08G18/26
    • C08G18/72C08G18/22
    • The instant invention is directed to a process for the production of a light fast, transparent polyurethane elastomer comprising reacting:(A) from 90 to 50% by weight, based on the polyurethane solids content, of a compound having a molecular weight of from 400 to 10,000 which has at least two Zerewitinoff active hydrogen atoms;(B) from 50 to 10% by weight, based on the polyurethane solids content, of an aliphatic and/or alicyclic polyisocyanate; and(C) from 0 to 20% by weight, based on the polyurethane solids content, of a chain-lengthening agent having a molecular weight of from 60 to 400; in the presence of:(D) catalysts for the isocyanate polyaddition reaction, the improvement wherein said catalysts, component (D), is a catalyst combination of:(a) an alkali metal hydroxide and/or alkaline earth metal hydroxide; and(b) an organometallic compound selected from the group consisting of the acetyl acetonate of iron, C.sub.1 -C.sub.8 alcoholates, phenolates, enolates and/or acetyl acetonates of metals of the 4th main group or sulfur-containing compounds of metals of the 4th main group, in which compounds the sulfur is directly attached to the metal atom.
    • 本发明涉及一种生产轻质,透明的聚氨酯弹性体的方法,包括使(A)基于聚氨酯固体含量的90至50重量%的分子量为400的化合物 至10,000具有至少两个Zerewitinoff活性氢原子; (B)基于聚氨酯固体含量为50至10重量%的脂族和/或脂环族多异氰酸酯; 和(C)基于聚氨酯固体含量为0至20重量%的分子量为60至400的链延长剂; 在(D)用于异氰酸酯加聚反应的催化剂的存在下,其中所述催化剂组分(D)是以下的催化剂组合:(a)碱金属氢氧化物和/或碱土金属氢氧化物; 和(b)选自第四主要金属的第四主要金属的第四主要金属的乙酰丙酮酸铁,C 1 -C 8醇盐,酚盐,烯醇化物和/或乙酰丙酮化物的有机金属化合物或第四主要金属的含硫化合物 基团,其中化合物硫直接连接到金属原子上。