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POLYALKYLENE GLYCOL-BASED ETHER PYRROLIDONE CARBOXYLIC ACIDS, AND CONCENTRATES FOR THE PRODUCTION OF SYNTHETIC COOLING LUBRICANTS CONTAINING THE SAME
POLYALKYLENE GLYCOL-BASED ETHER PYRROLIDONE CARBOXYLIC ACIDS, AND CONCENTRATES FOR THE PRODUCTION OF SYNTHETIC COOLING LUBRICANTS CONTAINING THE SAME
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机译:聚亚烷基乙二醇基醚吡咯烷酮羧酸及其浓缩物,用于生产含有相同成分的合成冷却润滑剂
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摘要
The subject of the invention is an etherpyrrolidone carboxylic acid of the formula (1) in which R1 is a C1-C6 hydrocarbon group with 1-4 oxy groups R2 is H, CH3, CH2CH3 (A-O) is a (poly)alkylene glycol unit containing one or more C2-C4 alkoxy groups or a mixture of plural C2-C4 alkoxy groups, at least one alkoxy group being a butoxy or propoxy group M is hydrogen, alkali metal, alkaline earth metal or an ammonium group y is 1 or 2 x is 1, 2, 3 or 4.
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