PURPOSE: To obtain a new powder coating compsn. which can be hardened at rather low temp., which has fluidity and which can form high-quality coatings.
CONSTITUTION: This powder coating compsn. has 20 to 80°C glass transition temp. and is obtd. by (a) homogeneously dissolving the following components (A) to (C) in an inert solvent having 50 to 150°C boiling point or boiling range, (b) removing the solvent from the obtd. soln., and (c) converting the obtd. solid into a powder. The components are (A) a polyol component having 30 to 155 hydroxyl value and 30 to 120°C glass transition temp. and containing a hydroxy- functional copolymer of at least tone kind of olefinic unsatd. monomers, (B) a polyisocyanate component having blocked isocyanate groups and -45 to 45°C glass transition temp. and contains (i) a ketoxime-blocked polyisocyanate having one or more biuret groups, isocyanurate groups, uretidione groups and urethane groups such as a polyisocyanate produced from 1,6-diisocyanate hexane, and (C) a catalyst component for the reaction of the isocyanate group component with the hydroxyl group component.
| JPH05174653 | MANUFACTURE OF ELECTRIC APPLIANCE |
| JPH10324843 | COATING RESIN COMPOSITION |
| JP6847197 | Resin composition and hard coat film |
RAINHARUTO HARUPAAPU
HANSUUYOAHIMU KUROIDERU
MANFURETSUDO BOTSUKU
YURUGEN MAIKUSUNERU
RAINERU RETSUTEIGU
BUORUFUGANGU SHIYURUTSU
| JPS5337619A | 1978-04-06 | |||
| JPS5995259A | 1984-06-01 | |||
| JPH02620A | 1990-01-05 | |||
| JPS5198220A | 1976-08-30 | |||
| JPS5933265A | 1984-02-23 | |||
| JPH04292675A | 1992-10-16 |