additivkonzentrate based on mixtures of organic diluents and one containing carboxylic groups, interpolymeren and those containing lubricants

摘要

Additive concentrates comprising from at least one organic diluent selected from naphthenic oils and synthetic oils and from about 95% to about 50% by weight of an esterified carboxy-containing interpolymer are useful to prepare lubricating oils having good viscosity index and which also have exceptional low temperature characteristics.