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single component pur system consisting of aqueous or water soluble polyurethanes
single component pur system consisting of aqueous or water soluble polyurethanes
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机译:由水性或水溶性聚氨酯组成的单组份pur体系
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摘要
Polyurethane system comprises (a) a water-soluble urea group containing hydroxyl group polyurethane, where the amount of the hydroxyl group is 2-10 wt.% and the concentration of the urea group, which is derived from amino alcohol with a primary or secondary amino group and at least a hydroxyl group, is 3-20 wt.%; (b) crosslinker, which is free of isocyanate group and are optionally hydrophilized; and (c) optionally further water-soluble and/or dispersible and/or organically soluble, optionally hydroxyl functional oligomer and/or polymer. An independent claim is included for polyurethane obtained using the polyurethane system.
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