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    Process for manufacturing high-resilient flexible urethan foams
    2.
    发明授权
    Process for manufacturing high-resilient flexible urethan foams 失效
    制造高弹性柔性聚氨酯泡沫的方法

    公开(公告)号：US4119582A

    公开(公告)日：1978-10-10

    申请号：US656979

    申请日：1976-02-10

    申请人： Kiyoshi Matsubara ,  Yuichi Nomura ,  Tadashi Yatomi ,  Tadashi Hamamura ,  Isao Noda ,  Terumi Watanabe ,  Takao Nomura ,  Isao Sakata

    发明人： Kiyoshi Matsubara ,  Yuichi Nomura ,  Tadashi Yatomi ,  Tadashi Hamamura ,  Isao Noda ,  Terumi Watanabe ,  Takao Nomura ,  Isao Sakata

    IPC分类号： C08G18/00 ,  C08G18/63 ,  C08G18/76 ,  C08K5/54

    CPC分类号： C08G18/632 ,  C08G18/7607 ,  Y10S521/904

    摘要： A process for manufacturing high-resilient flexible urethan foams characterized by, reacting and foaming polyalkylene ether polyol and an organic polyisocyanate in the presence of a blowing agent, a surfactant and catalyst, (1) using as said polyalkylene ether polyol one which contains 2 to 10% by weight of a vinyl type polymer and in which its hydroxyl number ranges from 25 to 60 mg KOH/g, of its hydroxyl groups 20 to 70 mol% are primary hydroxyl groups and the remaining hydroxyl groups are secondary hydroxyl groups; (2) using as said organic polyisocyanate a mixture of tolylene diisocyanate with diphenylmethane diisocyanate or a crude diphenylmethane diisocyanate; and (3) using as said surfactant a mixture of a high-molecular-weight siloxane-oxyalkylene copolymer with a low-molecular-weight siloxane-oxyalkylene copolymer.

    摘要翻译： 其特征在于在发泡剂，表面活性剂和催化剂的存在下使聚亚烷基醚多元醇和有机多异氰酸酯反应并发泡，（1）使用含有2〜2个碳原子的聚亚烷基醚多元醇， 10重量％的乙烯基型聚合物，其羟值范围为25至60mg KOH / g，其羟基为20至70mol％为伯羟基，剩余的羟基为仲羟基; （2）使用甲苯二异氰酸酯与二苯基甲烷二异氰酸酯或粗二苯基甲烷二异氰酸酯的混合物作为有机多异氰酸酯; 和（3）使用高分子量硅氧烷 - 氧化烯共聚物与低分子量硅氧烷 - 氧化烯共聚物的混合物作为表面活性剂。