| 摘要 |
Amphiphilic polyesters having (a) ester units of polyalkylene glycols with a molar mass of 500 to 7,500 and aliphatic bicarboxylic acids and/or monohydroxy monocarboxylic acids and (b) ester units obtained from aromatic bicarboxylic acids and polyvalent alcohols and with molar masses of 1,500 to 25,000; process for producing the amphiphilic polyesters by polycondensation, in which first of all (a) aliphatic polyesters of polyalkylene glycols with a molar mass of 500 to 7,500 are produced with aliphatic biocarboxylic acids and/or monohydroxy monocarboxylic acids and then, in the aliphatic polyesters thus obtained, (b) aromatic polyesters are produced from aromatic bicarboxylic acids and polyvalent alcohols; the polycondensation sequence is reversed or oligomeric aromatic polyesters (b) are condensed with oligomeric aliphatic polyesters (a); and the use of the amphiphilic polyesters as additives in washing agents, other washing agent additives and washing after treatment agents.
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