Oil-soluble adducts of disuccinimides and anhydrides of unsaturated bicarboxylic aliphatic acids.

摘要

Oil-soluble additives with dispersant properties inert towards fluoroelastomers are described, prepared by reacting an alkyl or alkenyl disuccinimide with an anhydride of an unsaturated bicarboxylic aliphatic acid or the corresponding acid. The reaction is conducted at a temperature of between 130 and 170 DEG C. The molar ratio of anhydride to disuccinimide is between 1.05 and 1.95.