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PROPYLENE OXIDE POLYADDUCTS CONTAINING CARBOXYL GROUPS,A PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYEING ASSISTANTS
PROPYLENE OXIDE POLYADDUCTS CONTAINING CARBOXYL GROUPS,A PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYEING ASSISTANTS
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机译:含有羧基的环氧丙烷氧化物,其制备方法及其在印染助剂中的应用
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摘要
A propylene oxide polyadduct containing carboxyl groups, or a salt thereof, obtained from (a) an adduct of propylene oxide and an aliphatic alcohol having 3 to 10 carbon atoms which is at least trihydric, (b) an aliphatic dicarboxylic acid or the anhydride thereof having 2 to 10 carbon atoms or a mono- or di-lower alkylester of said dicarboxylic acids, (c) an aliphatic diol having an average molecular weight of at most 2,000, (d) a fatty acid having 8 to 22 carbon atoms and (e) an aromatic dicarboxylic acid or the anhydride thereof having 8 to 12 carbon atoms; it is in particular useful as dyeing assistant for the dyeing of fibrous material made of or containing wool with anionic dyes.
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