Use of polyaspartic acid amides as leather auxiliary products
    6.
    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。

    Leather tanning with oligourethanes
    8.
    发明授权
    Leather tanning with oligourethanes 失效
    皮革鞣制与低聚氨酯

    公开(公告)号:US4106897A

    公开(公告)日:1978-08-15

    申请号:US718489

    申请日:1976-08-30

    IPC分类号: C14C3/18

    CPC分类号: C14C3/18

    摘要: This invention is concerned with a method of tanning or retanning leather or pelts by treating them with an aqueous liquor containing water-soluble oligourethanes having ionic groups. The oligourethanes have a molecular weight of from 300 to 20,000 and they may be methylolated. The oligourethanes may be water-soluble owing to their ionic groups or they may contain hydrophilic segments to aid in their solubility in the aqueous liquor. The liquor may also contain up to an equal amount of formaldehyde or compounds which split off formaldehyde.

    摘要翻译: 本发明涉及通过用含有具有离子基团的水溶性低聚氨酯的含水液体处理皮革或毛皮来鞣制或复鞣的方法。 低聚氨酯的分子量为300至20,000,它们可以是羟甲基化的。 寡聚氨酯由于其离子基团而可能是水溶性的,或者它们可以含有亲水链段以帮助其在含水液体中的溶解度。 该液体还可含有相等量的甲醛或分解甲醛的化合物。

    Bisulfite-blocked polyisocyanates as tanning agents
    10.
    发明授权
    Bisulfite-blocked polyisocyanates as tanning agents 失效
    亚硫酸氢盐封端的多异氰酸酯作为鞣剂

    公开(公告)号:US5618317A

    公开(公告)日:1997-04-08

    申请号:US456972

    申请日:1995-06-01

    CPC分类号: C14C3/18

    摘要: The present invention relates to tanning agents containing carbamoyl sulfonate groups that are prepared by the reaction of(A) organic polyisocyanates,(B) 0.01 to 0.4 equivalents, relative to the isocyanate groups of polyisocyanate (A), of polyether alcohols having incorporated polyalkylene oxide units (the equivalents of the polyether alcohol being based on the hydroxyl groups), wherein 40 to 100 mole-% of the polyalkylene oxide units consist of polyethylene oxide units having a sequence length of 5 to 70,(C) optionally, NCO-reactive components other than polyether polyol (B), and(D) ammonium or alkali bisulfites or disulfites.

    摘要翻译: 本发明涉及含有氨基甲酰磺酸盐基团的鞣剂,其通过(A)有机多异氰酸酯反应制备,(B)相对于多异氰酸酯(A)的异氰酸酯基为0.01〜0.4当量,具有掺合聚环氧烷的聚醚醇 单元(聚醚醇基于羟基的当量),其中40-100摩尔%的聚环氧烷单元由序列长度为5-70的聚环氧乙烷单元组成,(C)任选的NCO-反应性 除聚醚多元醇(B)以外的成分,(D)铵或碱式亚硫酸氢盐或亚硫酸氢盐。