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    • 2. 发明授权
    • Low melting urethane linked toluenediisocyanates
    • 低熔点氨基甲酸酯连接甲苯二异氰酸酯
    • US4683279A
    • 1987-07-28
    • US882994
    • 1986-07-08
    • Barton MilliganWilliam E. StarnerRoland E. GrandinJeremiah P. Casey
    • Barton MilliganWilliam E. StarnerRoland E. GrandinJeremiah P. Casey
    • C08G18/76C07C67/00C07C239/00C07C271/28C08G18/80C08G18/81
    • C08G18/8019C08G18/815C08G2120/00
    • This invention relates to urethane linked mixtures of 2,4- and 2,6-toluenediisocyanates (ULTDI dimers) having low melting points and to a method of forming these systems. The urethane linked toluenediisocyanates containing from 45-90% of the 2,4- and 10-55% of the 2,6- isomer by weight are formed by reacting two moles of an appropriate isomer mix of toluenediisocyanate, with one mole of a specific alkylene glycol, e.g., 1,2-butanediol, diethylene glycol or dipropylene glycol under conditions such that essentially only one of the isocyanate groups on a toluenediisocyanate molecule reacts with a hydroxyl group of the glycol. Conditions are controlled such that the urethane linked toluenediisocyanates are formed. The resulting product, which has two unreacted isocyanate groups, is suited for producing a variety of elastomers including polyurethane polyurethane/urea or polyurea elastomers.
    • 本发明涉及具有低熔点的2,4-和2,6-甲苯二异氰酸酯(ULTDI二聚体)与形成这些体系的方法的氨基甲酸酯连接的混合物。 含有45-90%的2,4-和10-55%的2,6-异构体的氨基甲酸酯连接的甲苯二异氰酸酯是通过使两摩尔的甲苯二异氰酸酯的合适异构体混合物与1摩尔特定的 亚烷基二醇,例如1,2-丁二醇,二甘醇或二丙二醇,在甲苯二异氰酸酯分子上基本上只有一个异氰酸酯基与二醇的羟基反应的条件下进行。 控制条件使得形成氨基甲酸酯连接的甲苯二异氰酸酯。 得到的具有两个未反应的异氰酸酯基的产物适用于生产各种弹性体,包括聚氨酯聚氨酯/脲或聚脲弹性体。
    • 8. 发明授权
    • Flexibilized polyepoxide resins
    • 柔性聚环氧树脂
    • US5334654A
    • 1994-08-02
    • US56728
    • 1993-05-03
    • William E. StarnerSusan G. Musselman
    • William E. StarnerSusan G. Musselman
    • C08G59/18C08G59/40C08G59/50C08L63/00
    • C08L63/00
    • This invention relates to improved polyepoxide resins having enhanced physical and elastic properties. The polyepoxide resins comprise an polyepoxide resin based on a polyglycidyl ether of a phenolic type compound and an acrylate terminated urethane prepolymer. The improvement in the polyepoxide resin formulation comprises incorporating an aliphatic, aliphatic ether or ester component having monofunctional reactivity with an amine hydrogen and an amine curative having from 3 to 10, and preferably 3 to 5 epoxide reactive hydrogen atoms into the epoxy resin. The presence of the monofunctional and aliphatic amine reactive component along with the acrylate terminated urethane prepolymer results in an epoxy resin having the enhanced properties.
    • 本发明涉及具有增强的物理和弹性特性的改进的聚环氧化物树脂。 聚环氧化物树脂包括基于酚类化合物的聚缩水甘油醚和丙烯酸酯封端的氨基甲酸酯预聚物的聚环氧树脂。 聚环氧树脂制剂的改进包括将具有单胺官能反应性的脂族,脂族醚或酯组分与胺氢和具有3至10个,优选3至5个环氧化物反应性氢原子的胺固化剂掺入环氧树脂中。 单官能和脂族胺反应性组分与丙烯酸酯封端的氨基甲酸酯预聚物的存在导致具有增强性能的环氧树脂。