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    • 6. 发明申请
    • PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS
    • 生产刚性聚氨酯泡沫的方法
    • US20120264842A1
    • 2012-10-18
    • US13443336
    • 2012-04-10
    • Zeljko TOMOVICOlaf JACOBMEIERGunnar KAMPF
    • Zeljko TOMOVICOlaf JACOBMEIERGunnar KAMPF
    • C08J9/14C09K3/00C08G18/32
    • C08J9/141C08G18/092C08G18/1816C08G18/225C08G18/482C08G18/6674C08G18/7664C08G2101/0025C08J2375/08
    • A process for producing a rigid polyurethane foam by reacting (a) an organic polyisocyanate with (b) a compound having at least two hydrogen atoms that are reactive toward isocyanate groups, in the presence of (c) a blowing agent, (d) a catalyst and, optionally, (e) an auxiliary or additive. Component (b) contains: one or more high-functionality polyether alcohols having functionalities of 3.5 to 5.5 and a hydroxyl number of 400 to 550 mg KOH/g; one or more polyether alcohols based on aromatic and/or aliphatic amines and having functionalities of 3.5 to 4.5 and a hydroxyl number of 350 to 500 mg KOH/g; one or more polyether alcohols having functionalities of 2 to 4 and a hydroxyl number of 150 to 450 mg KOH/g; one or more low molecular weight chain extenders and/or crosslinkers having functionalities of 2 to 3 and a molecular weight of less than 400 g/mol; and optionally water.
    • (a)有机多异氰酸酯与(b)具有至少两个对异氰酸酯基团具有反应性的氢原子的化合物在(c)发泡剂存在下反应制备刚性聚氨酯泡沫体的方法,(d) 催化剂和任选地(e)辅助剂或添加剂。 组分(b)包含:一种或多种官能度为3.5至5.5,羟基数为400至550mg KOH / g的高官能度聚醚醇; 一种或多种基于芳族和/或脂族胺并且官能度为3.5至4.5,羟基数为350至500mg KOH / g的聚醚醇; 官能度为2〜4,羟值为150〜450mgKOH / g的一种或多种聚醚醇; 一种或多种低分子量增链剂和/或具有2至3的官能度和小于400g / mol的分子量的交联剂; 和任选的水。