Foaming-resistant hydrocarbon oil compositions

摘要

A composition of matter resistant to foaming comprising a hydrocarbon oil and an acrylate copolymer dispersed in the said hydrocarbon oil, which acrylated copolymer contains at last one polymerised fluorinated (meth)acrylate monomer wherein not more than three neighbouring carbon atoms in the said fluorinated (meth)acrylate monomer carry one or more fluorine substituents.