Lactam-containing emulsifier systems for water-in-oil emulsion polymers

摘要

An emulsifier for an inverse emulsion polymerization to be produce a water-soluble polymer composed of a mixture of a non-ionic oil-soluble surfactant and an N-alkyl lactam or polymer of a N-vinyl lactam. The emulsifier is extremely useful in polymerizations wherein a water-in-oil polymeric product is obtained since the product is easily inverted to a stable oil-in-water emulsion. Methods for polymerization processes using the inventive emulsifier as well as emulsions obtained therefrom are also disclosed.