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    • 1. 发明申请
    • METHOD FOR PRODUCING RIGID POLYURETHANE FOAM
    • 生产刚性聚氨酯泡沫的方法
    • US20110060063A1
    • 2011-03-10
    • US12944809
    • 2010-11-12
    • Tatsuya YABUNOKatsuhiko ShimizuHiroshi WadaTomohiro Hayashi
    • Tatsuya YABUNOKatsuhiko ShimizuHiroshi WadaTomohiro Hayashi
    • C08G18/42
    • C08G18/632C08G18/4072C08G18/636C08G18/638C08G2101/0025C08G2101/0083
    • To provide a method for producing a rigid polyurethane foam using a polymer-dispersed polyol, which has high compatibility with a polyol to be used and is excellent in the storage stability, and with which good heat insulating properties can be obtained when it is formed into a foam.A method for producing a rigid polyurethane foam, which comprises reacting a polyol (Z) with a polyisocyanate in the presence of a blowing agent, a surfactant and a catalyst, wherein the (Z) is obtained by mixing a polyol (Z1) with a polymer-dispersed polyol (A) and has an average hydroxy value of from 200 to 800 mgKOH/g. The (A) is one having a monomer polymerized in a polyol (X), the (X) contains a polyether polyol (Y), the (Y) has an oxyethylene group content of at least 15 mass % and contains a polyol Y1 having a hydroxy value of from 200 to 800 mgKOH/g and a polyol Y2 having a hydroxy value of from 5 to 84 mgKOH/g, and the monomer contains a fluorinated acrylate or a fluorinated methacrylate.
    • 提供一种使用与所使用的多元醇高相容性的聚合物分散多元醇制造硬质聚氨酯泡沫体的方法,并且储存稳定性优异,并且当其形成时可获得良好的隔热性能 泡沫。 一种硬质聚氨酯泡沫塑料的制造方法,其特征在于,在发泡剂,表面活性剂和催化剂的存在下,使多元醇(Z)与多异氰酸酯反应,其中(Z)是通过将多元醇(Z1)与 聚合物分散多元醇(A),平均羟值为200〜800mgKOH / g。 (A)是在多元醇(X)中聚合的单体,(X)含有聚醚多元醇(Y),(Y)的氧化乙烯基含量为15质量%以上,含有多元醇Y1, 羟值为200〜800mgKOH / g,羟基值为5〜84mgKOH / g的多元醇Y2,单体含氟化丙烯酸酯或氟化甲基丙烯酸酯。