Use of polyaspartic acid amides as leather auxiliary products
    1.
    发明授权
    Use of polyaspartic acid amides as leather auxiliary products 失效
    使用聚天冬氨酸酰胺作为皮革辅助产品

    公开(公告)号:US5885474A

    公开(公告)日:1999-03-23

    申请号:US11241

    申请日:1998-01-28

    IPC分类号: C08G73/10 C14C9/00

    摘要: Leather can be pretreated to obtain good body, soft feel, and excellent grain smoothness and solidity with products having a molecular weight of 700 to 30,000 and which are obtainable by reaction ofA. polysuccinimide having a molecular weight, determined as the number-average, of 500 to 10,000, withB. 5 to 90 mol % based on the succinimide units of polysuccinimide A, and/or secondary amine, the nitrogen substituents of which contain 1 to 60 carbon atoms and which can be unsubstituted or substituted, at least 2.5 mol % of the nitrogen substituents of the amine containing at least 12 carbon atoms,C. optionally, (i) derivatives of C.sub.1 -C.sub.18 -monocarboxylic acids, C.sub.2 -C.sub.10 -dicarboxylic acids, and/or (ii) monoisocyanates, diisocyanates epichlorohydrin (for reaction of amino and/or hydroxyl groups on the nitrogen substituents of the reaction product of A and B), andD. 95 to 10 mol % of ring-opening base in the presence of water.

    摘要翻译: PCT No.PCT / EP96 / 03241 Sec。 371日期1998年1月28日 102(e)1998年1月28日PCT PCT 1996年7月23日PCT公布。 公开号WO97 / 06279 日期1997年2月20日可以预处理具有分子量为700〜30,000的产品的良好的身体,柔软的手感和良好的颗粒光滑度和稳定性,并且可以通过将分子量为A的聚琥珀酰亚胺 数均分子量为500〜10000,B为5〜90摩尔%,基于琥珀酰亚胺单元的聚琥珀酰亚胺A,和/或仲胺,其氮取代基含有1〜60个碳原子,可以是未取代的或 至少2.5mol%含有至少12个碳原子的胺的氮取代基,C.任选地,(i)C 1 -C 18 - 一元羧酸的衍生物,C 2 -C 10 - 二羧酸和/或(ii) 单异氰酸酯,二异氰酸酯表氯醇(用于在A和B的反应产物的氮取代基上的氨基和/或羟基的反应)和D.95至10摩尔%的开环碱在水的存在下反应。