Powder coating compositions

Details Powder coating compositions Powder coating compositions

1996-04-12

1997-03-25

Hamilton, III, Thomas

Stock material or miscellaneous articles

Composite

Of polyamidoester

525440, 525934, C08L 6702, C08L 7506, B32B 2740

Patent

active

056143230

ABSTRACT:
Disclosed are thermosetting, powder coating compositions comprised of a blend of semi-crystalline and amorphous polyesters and certain adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate which are readily curable at temperatures and times commonly used to cure (cross-link) powder coatings. When using equivalent curing conditions, the disclosed coating compositions exhibit a higher degree of cross-linking than do combinations of amorphous polyesters alone and the adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate.

REFERENCES:
patent: 3385831 (1968-05-01), Watson
patent: 4352924 (1982-10-01), Wooten et al.
patent: 4413079 (1983-11-01), Disteldorf et al.
patent: 4442270 (1984-04-01), Passmore et al.
patent: 4855382 (1989-08-01), Vanhaeren
patent: 4859760 (1989-08-01), Light et al.
"Cross-Linking Agents For Powder Coatings", Huls America Inc. Aug. 1988.

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