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
    • 1. 发明申请
    • PROCESS FOR PRODUCING POLYURETHANE ELASTOMER AND ELASTIC FILAMENT
    • 生产聚氨酯弹性体和弹性纤维的方法
    • WO9939030A8
    • 2001-09-27
    • PCT/JP9800400
    • 1998-01-30
    • NISSHIN SPINNINGTSUTSUMI NOBUHISATAMURA KENJIYOSHIMOTO MITSUHIKO
    • TSUTSUMI NOBUHISATAMURA KENJIYOSHIMOTO MITSUHIKO
    • C08G18/08C08G18/10C08G18/12C08G18/66D01F6/70D01F6/78
    • D01F6/70C08G18/0895C08G18/10C08G18/12C08G18/6607C08G18/6674Y10S528/906C08G18/40
    • A process for producing a polyurethane elastomer or elastic filament, wherein a first polymer diol of a molecular weight of at least 600, a second polymer diol of a molecular weight of at least 600, a first low-molecular weight diol having a molecular weight of not higher than 500, a second low-molecular weight diol, a first diisocyanate and a second diisocyanate are used as the main starting materials, and the molar ratio of the total of the first diisocyanate and the second diisocyanate in the starting materials to the total of the first polymer diol, the second polymer diol, the first low-molecular weight diol and the second low-molecular diol is 0.95/1 to 1.25/1, characterized in that a fluid polyurethane (obtained by continuously reacting a prepolymer having a terminal hydroxyl group and obtained by reacting the first polymer diol, the first low-molecular weight diol and the first diisocyanate with a prepolymer having a terminal isocyanate group and obtained by reacting the second polymer diol, the second low-molecular weight diol and the second diisocyanate) is continuously extruded through a nozzle.
    • 一种制备聚氨酯弹性体或弹性丝的方法,其中分子量至少为600的第一聚合物二醇,分子量至少为600的第二聚合物二醇,分子量为至少为600的第一低分子量二醇 不高于500,使用第二低分子量二醇,第一二异氰酸酯和第二二异氰酸酯作为主要原料,并且起始原料中第一二异氰酸酯和第二二异氰酸酯的总量与总量的摩尔比 的第一聚合物二醇,第二聚合物二醇,第一低分子量二醇和第二低分子量二醇的重量比为0.95 / 1至1.25 / 1,其特征在于流动性聚氨酯(通过使具有末端的预聚物连续反应获得) 羟基,并且通过使第一聚合物二醇,第一低分子量二醇和第一二异氰酸酯与具有末端异氰酸酯基的预聚物反应获得,并通过使第二聚合物二醇 聚合物二醇,第二低分子量二醇和第二二异氰酸酯)通过喷嘴连续挤出。