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    • 10. 发明授权
    • Hydroxyl-functionalised polyurethane hot melt prepolymer
    • 羟基官能化聚氨酯热熔预聚物
    • US08653221B2
    • 2014-02-18
    • US12992177
    • 2009-05-12
    • Uwe SchümannKirstin Weiland
    • Uwe SchümannKirstin Weiland
    • C08G18/00
    • C08G18/0895C08G18/12C08G18/283C08G18/4812C08G18/6674C08G18/755C08G18/792C08G2170/20Y10T428/31551
    • The invention relates to hydroxyl-functionalised polyurethane hot melt prepolymers comprising the chemical reaction product of isocyanate-reactive starting materials with at least one isocyanate-containing starting material. Said prepolymers are characterized in that the isocyanate-reactive starting materials of the hydroxyl-functionalised polyurethane hot melt prepolymers have a polypropylene glycol with a functionality higher than two and a number-average molar mass higher than or equal to 3,000 g/mol, a polypropylene glycol with a functionality less than or equal to two and a number-average molar mass less than or equal to 1,000 g/mol, and a chain lengthener with a functionality less than or equal to 500 g/mol, and the isocyanate-containing starting material of the hydroxyl-functionalised polyurethane hot melt prepolymer has an aliphatic or alicyclic diisocyanate.
    • 本发明涉及羟基官能化聚氨酯热熔预聚物,其包含异氰酸酯反应性原料与至少一种含异氰酸酯的原料的化学反应产物。 所述预聚物的特征在于,羟基官能化的聚氨酯热熔预聚物的异氰酸酯反应性起始材料具有官能度高于2的平均摩尔质量高于或等于3,000g / mol的聚丙二醇,聚丙烯 功能小于或等于2的二醇,数均摩尔质量小于或等于1,000g / mol,官能度小于或等于500g / mol的链加长剂和含异氰酸酯的起始物 羟基官能化聚氨酯热熔预聚物的材料具有脂族或脂环族二异氰酸酯。