피혁용수성우레탄코팅제의제조방법
    2.
    发明授权
    피혁용수성우레탄코팅제의제조방법 失效
    制备用于皮革的URETHAN涂料的方法

    公开(公告)号:KR1019890001067B1

    公开(公告)日:1989-04-22

    申请号:KR1019850007216

    申请日:1985-09-30

    Abstract: The urethane coating agent is prepd. by (a) reacting aliphatic diisocyanate with polyol and bisphenol A 10-50% (to total solids) and MDA 0.5-1% (to total solids) in lower b.p. solvent, (b) neutralizing with acid and (c) distg. off solvent. Thus, e.g. vacuum dry polypropyleneglycole (mw ca 2000) and polyethertriol (mw ca 3000) for 30 min at 100 deg.C, put dried polyols, bisphenol A, 1,6-hexanediol, MDA, methylethylketone (MEK) and hexamethylenediisocyanate into reactor and react them for 4hr at 70 deg. C, neutralize with HCl and add water with stirring, and distg. off MEK to give coating agent.

    Abstract translation: 制备聚氨酯涂料 通过(a)使脂族二异氰酸酯与多元醇和双酚A与总摩尔数相比为10-50%(总固体)和MDA为0.5-1%(总固体)的较低沸点。 溶剂,(b)用酸中和,(c)distg。 关闭溶剂。 因此,例如 在100℃下真空干燥聚丙二醇(mw ca 2000)和聚醚三醇(mw ca 3000)30分钟,将干燥的多元醇,双酚A,1,6-己二醇,MDA,甲基乙基酮(MEK)和六亚甲基二异氰酸酯加入反应器中, 在70度下4小时。 C,用HCl中和,搅拌加水, 关闭MEK给予涂层剂。

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