Water soluble oil modified imidized polyesters
AssigneeThe P. D. George Company
InventorDaniel J. Lange
Life of this patent
Estimating the term…
Abstract
This invention relates to (1) water soluble and/or dispersible compositions characterized by the presence of oil modified imidized polyesters; and to (1) which also contains curable resins. This invention also relates to a wide variety of uses for such compositions, such as electrical insulations, for example as in insulation varnishes, and related uses.
Claims31
A water soluble and/or dispersible composition comprising a fatty oil or fatty acid modified, imidized polyester, said polyester being derived from aliphatic, cycloaliphatic or aromatic diols;
- polyhydroxy-alkanes other than diols;
- aliphatic, cycloaliphatic and/or aromatic dicarboxylic acids;
- and aromatic tricarboxylic acids.
A process for preparing a water soluble and/or dispersible composition characterized by the presence of an oil modified, imidized polyester, said process comprising:
- (a) adding a polycarboxylic acid or an anhydride thereof to an oil modified imidized polyester, said polycarboxylic acid serving as a solutizer;
- (b) adding a curing resin to the product of step (a);
- and
- (c) adding a basic compound selected from the group consisting of ammonia and amines to the product of step (b) to form solubilizing salts thereof.
Dependencies are inferred from the claim text.