Terpolymers based on alpha, beta-unsaturated dicarboxylic acid anhydrides, alpha, beta-unsaturated compounds and polyoxyalkylene ethers of lower, unsaturated alcohols

摘要

The present invention relates to terpolymers based on alpha , beta -unsaturated dicarboxylic acid anhydrides, alpha , beta -unsaturated compounds and polyoxyalkylene ethers according to Claim 1, and also a process for the preparation of the same according to Claim 5. The invention likewise provides a mixture of at least one terpolymer according to Claim 1 and at least one ethylene-vinyl ester copolymer. The terpolymers of the invention, and also their mixtures, are used as paraffin inhibitors in crude oils and petroleum products.