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    • 141. 发明授权
    • Polyol blend, cellular polyurethane foam product made therefrom, and
halogenated hydrocarbon-free process therefor
    • 多元醇共混物,由其制成的蜂窝状聚氨酯泡沫体产品及其无卤烃类方法
    • US5690855A
    • 1997-11-25
    • US180086
    • 1994-01-11
    • Charles B. NicholsMichael R. SandnerRichard R. Zielinski, II
    • Charles B. NicholsMichael R. SandnerRichard R. Zielinski, II
    • C08G18/48C08J9/08
    • C08G18/4883C08G18/4816C08G2101/0025C08G2101/005C08G2101/0083
    • A polyol blend is disclosed for making cellular polyurethane foam products in the absence of halogenated hydrocarbon blowing agents. The products have good insulating performance, good compressive strength, and excellent dimensional stability. The blend comprises first and second polyols and is suitable for one-shot and two component reaction systems. The first polyol is the reaction product of one or more alkylene oxides and a compound selected from the group consisting of aliphatic diols, triols, pentaerythritol, water in an amount sufficient to form a diol upon reaction with alkylene oxide, and mixtures thereof. The second polyol is the reaction product of one or more alkylene oxides and, in the absence of polyol precursor compounds containing amine moieties, a compound selected from the group consisting of carbohydrates, a mixture of carbohydrates, and a mixture of one or more carbohydrates and one or more compounds selected from the group consisting of aliphatic diols, triols, water in an amount sufficient to form a diol upon reaction with alkylene oxide, and mixtures thereof.
    • 公开了在不存在卤代烃发泡剂的情况下制备多孔聚氨酯泡沫产品的多元醇共混物。 该产品绝缘性能好,抗压强度好,尺寸稳定性好。 共混物包含第一和第二多元醇,并且适用于单次和双组分反应体系。 第一种多元醇是一种或多种烯化氧和选自脂肪族二醇,三醇,季戊四醇,水,足以与烯化氧反应形成二醇的化合物及其混合物的反应产物。 第二多元醇是一种或多种烯化氧的反应产物,并且在不存在含有胺部分的多元醇前体化合物的情况下,选自碳水化合物,碳水化合物的混合物和一种或多种碳水化合物的混合物和 一种或多种选自脂肪族二醇,三醇,足以在与烯化氧反应形成二醇的量的水中的化合物及其混合物。