PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS
    1.
    发明申请
    PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS 有权
    生产刚性聚氨酯泡沫的方法

    公开(公告)号:US20110263736A1

    公开(公告)日:2011-10-27

    申请号:US13090562

    申请日:2011-04-20

    IPC分类号: C08G18/48 C08J9/35 C08J9/14

    摘要: The invention relates to a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, wherein the compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups comprise at least one aromatic polyester alcohol bi), at least one polyether alcohol bii) having a functionality of from 4 to 8 and a hydroxyl number in the range from 300 to 600 mg KOH/g.

    摘要翻译: 本发明涉及通过使a)多异氰酸酯与b)在c)发泡剂存在下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反应来生产硬质聚氨酯泡沫的方法,其中化合物b)具有至少两个 对异氰酸酯基团反应的氢原子包含至少一种芳族聚酯醇bi),至少一种聚醚醇bii),其官能度为4-8,羟值在300-600mg KOH / g的范围内。