发明授权
US4749750A Method for lubricating PVC plastics 失效
PVC塑料的润滑方法

Method for lubricating PVC plastics
摘要:
A method for lubricating/releasing polyvinyl chloride, its copolymers, or polymer mixtures thereof, in which there is added a polyester comrising the polycondensation product of a C.sub.12-24 hydroxy carboxylic acid containing a secondary hydroxyl moiety, which may be chain terminated by a C.sub.8-24 monocarboxylic acid or glycerol.
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