| 摘要 |
PURPOSE:A thermosetting resin composition which can give a cured film excellent in physical, chemical and electrical properties and is useful for a variety of applications, prepared by emulsifying an epoxy resin by using a specified water- soluble polyester resin as a curing/surface active agent. CONSTITUTION:The desired thermosetting resin composition is obtained by emulsifying an epoxy resin by using a water-soluble polyester resin of an acid value of 20-100 as a curing/surface active agent. In the production of the above water-soluble polyester resin, it is desirable to use 1-40mol%, based on the acid component, at least tribasic carboxylic acid. An example of the tribasic acid is hemimellitic acid. It is preferable that said water-soluble polyester resin comprises a reaction component containing 1-40mol%, based on the acid component, at least tribasic carboxylic acid and at most 20mol% sulfate of a diol or of a carboxylic acid. |
