| 摘要 |
The invention relates to the use of polyethylene glycol esters of fatty acids corresponding to the following formula: <?in-line-formulae description="In-line Formulae" end="lead"?>R<SUP>1</SUP>-CO-O-(CH<SUB>2</SUB>-CH<SUB>2</SUB>-O)<SUB>n</SUB>-OC-R<SUP>2 </SUP> (I) <?in-line-formulae description="In-line Formulae" end="tail"?> in which R<SUP>1 </SUP>and R<SUP>2 </SUP>independently of one another represent alkyl groups containing 7 to 23 carbon atoms, which may be saturated or unsaturated, linear or branched, and n is a number of 2 to 50, as lubricants in the processing of thermoplastics.
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