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US5670677A Process for the production of color- and odor-stable quaternized fatty acid triethanolamine ester salts 失效
用于生产颜色和气味稳定的季铵化脂肪酸三乙醇胺酯盐的方法

Process for the production of color- and odor-stable quaternized fatty
acid triethanolamine ester salts
摘要:
A process for the production of color- and odor-stable quaternized fatty acid triethanolamine ester salts comprising the steps of A) partially or fully esterifying triethanolamine with at least one fatty acid in the presence of hypophosphorous acid; B) adding a peroxide compound and an alkali metal boranate to the esterification product from step A); and C) quaternizing the esterification product with an alkyl halide, a (di)alkyl sulfate or an alkylene oxide in the presence of a phenol derivative and a hydroxycarboxylic acid.
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