Process for the preparation of a polyurethane polymer with secondary hydroxyl end groups comprising polyester polyols
    24.
    发明授权
    Process for the preparation of a polyurethane polymer with secondary hydroxyl end groups comprising polyester polyols 有权
    用于制备具有包含聚酯多元醇的仲羟基端基的聚氨酯聚合物的方法

    公开(公告)号:US09139685B2

    公开(公告)日:2015-09-22

    申请号:US13381139

    申请日:2010-06-29

    摘要: The invention relates to a process for the preparation of a polyurethane polymer, comprising the step of reaction ofA) polyester polyols with secondary hydroxyl end groups, which are obtainable from the reaction of a polyester comprising carboxyl end groups with an epoxide of the general formula (1): wherein R1 represents an alkyl radical or an aryl radical and wherein the polyester comprising carboxyl end groups has an acid number of from ≧25 mg of KOH/g to ≦400 mg of KOH/g and a hydroxyl number of ≦5 mg of KOH/g, with B) polyisocyanates which are chosen from the group comprising toluoylene-diisocyanate, diphenylmethane-diisocyanate, polymeric diphenylmethane-diisocyanate, xylylene-diisocyanate, naphthylene-diisocyanate, hexamethylene-diisocyanate, diisocyanatodicyclohexylmethane and/or isophorone-diisocyanate. The invention furthermore relates to polyurethane polymers prepared by such a process.

    摘要翻译: 本发明涉及一种制备聚氨酯聚合物的方法,包括A)聚酯多元醇与仲羟基端基反应的步骤,其可从包含羧基端基的聚酯与通式 (1)表示:其中R1表示烷基或芳基,其中包含羧基端基的聚酯的酸值为≥25mgKOH / g至< NlE; 400mg KOH / g,羟值为& ; B)多异氰酸酯,其选自甲苯二异氰酸酯,二苯基甲烷二异氰酸酯,聚合二苯基甲烷二异氰酸酯,亚二甲苯基二异氰酸酯,亚萘基二异氰酸酯,六亚甲基二异氰酸酯,二异氰酸二环己基甲烷和/或异佛尔酮 - 二异氰酸酯。 本发明还涉及通过这种方法制备的聚氨酯聚合物。