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    • 7. 发明申请
    • METHOD OF PRODUCING HARD POLYURETHANE FOAMS
    • 生产硬质聚氨酯泡沫的方法
    • WO1994003532A1
    • 1994-02-17
    • PCT/EP1993001957
    • 1993-07-22
    • BAYER AKTIENGESELLSCHAFTLAMBERTS, WilhelmEISEN, Norbert
    • BAYER AKTIENGESELLSCHAFT
    • C08J09/14
    • C08J9/146C08J2375/04
    • Described is the production of hard polyurethane foams by the reaction of (1) polyisocyanates with (2) at least two compounds, of molecular weight between 92 and 10,000, containing hydrogen atoms reactive towards isocyanates, in the presence of (3) hydrofluoroalkanes as foaming agents and (4) at least one of the following compounds as solubilizers: R1-O-CO-O-R2, R1-O-CO-O-CO-O-R2, (I), in which R1 and R2 are C1-C12 alkyl or, together, C2-C6 alkylene and n = 0 to 6; (II), in which R1 to R3 are optionally halogen-substituted C1-C12 alkyl, C5-C10 cycloalkyl or optionally substituted aryl; (III), in which R1 and R2 are C1-C16 alkyl or C5-C10 cycloalkyl; (IV), in which R is C1-C20 alkyl or C5-C10 cycloalkyl plus, optionally, in the presence of (5) other per se prior art auxiliaries and additives.
    • 一种生产硬质聚氨酯泡沫塑料的方法,其包括使1)多异氰酸酯与2)具有至少两个分子量为92-10,000的异氰酸酯活性氢原子的化合物反应, 存在3)作为发泡剂的氢氟烷烃,和4)至少一种以下化合物:R1-O-CO-O-R2,R1-O-CO-O-CO-O-R2, (I)其中R 1和R 2表示C 1 -C 12烷基或一起表示C 2 -C 6烷基并且n = 0-6; (II)其中R 1 -R 3表示C 1 -C 12烷基,任选被卤素取代的C 5 -C 10环烷基或任选取代的芳基; (III),其中R 1和R 2是C 1 -C 16烷基或C 5 -C 10环烷基; (IV)化合物(其中R表示C 1 -C 20烷基或C 5 -C 10环烷基)作为增溶剂,并且在适当的情况下在5)其他已知的助剂和助剂存在下进行。