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    • 3. 发明授权
    • Diaminobenzoate catalytic chain extenders
    • 二氨基苯甲酸酯催化增链剂
    • US4908394A
    • 1990-03-13
    • US267217
    • 1988-11-04
    • Jeremiah P. CaseySusan M. Clift
    • Jeremiah P. CaseySusan M. Clift
    • C08G18/18C08G18/32
    • C08G18/325C08G18/1825
    • The present invention relates to a process for the production of polyurethanes wherein a tertiary amine functionality is incorporated into the side chain of a diaminobenzoate to form catalytic polyurethane chain extender. These chain extenders are polyurethane catalysts which provide adequate cure without residual odor and safety hazards associated with the more traditional tertiary amine catalysts. When reacted with the isocyanate reactive group the non-tertiary amine portion of the chain extender is bound to the polymeric network thereby preventing diffusion of the catalyst species from the polyurethane and negating odor and toxicity as problems. The diaminobenzoate provides enhanced polyurethane physical properties.
    • 本发明涉及生产聚氨酯的方法,其中叔胺官能团被引入到二氨基苯甲酸酯的侧链中以形成催化聚氨酯增链剂。 这些增链剂是提供足够固化而不具有与更传统的叔胺催化剂相关的残留气味和安全危害的聚氨酯催化剂。 当与异氰酸酯反应性基团反应时,扩链剂的非叔胺部分结合到聚合物网络,从而防止催化剂物质从聚氨酯扩散,并且作为问题消除气味和毒性。 二氨基苯甲酸酯提供增强的聚氨酯物理性能。