PURPOSE: To obtain an unsaturated polyester-imide resin excellent in heat resistance and air dryability, by using specified compounds as a polyalcohol and a monoalcohol as starting materials for producing an unsaturated polyester-imide resin.
CONSTITUTION: An unsaturated dicarboxylic acid (A) (e.g., maleic anhydride) is reacted with a polyalcohol (B) based on a fatty acid-modified polyalcohol obtained by reacting 1 equivalent of a trihydric alcohol [e.g., tris(2-hydroxyethyl) isocyanurate] with 0.8W1.2 equivalents of a fatty acid (e.g., linseed oil fatty acid), a monoalcohol (C) based on 2-tetrahydrophthalimidoethanol of the formula and, optionally, a saturated carboxylic acid (D) (e.g., terephthalic acid). The obtained unsaturated polyester-imide resin can be used suitably for impregnation of coils of electrical machines, adhesives, etc.
| WO/2016/009231 | NANOPARTICLES |
| WO/2003/050159 | POLYTRIMETHYLENE ETHER ESTER AMIDE AND USE THEREOF |
TANAKA TAKEHIKO
KITAJIMA MITSUHIRO
| JPS5189592A | 1976-08-05 | |||
| JP45028509A | ||||
| JPS56129218A | 1981-10-09 | |||
| JPS56129217A | 1981-10-09 | |||
| JPS53127594A | 1978-11-07 |