Heat-curable coating composition comprising plurality of binder

Details Heat-curable coating composition comprising plurality of binder Heat-curable coating composition comprising plurality of binder

1995-08-23

1998-04-21

Chen, Vivian

Stock material or miscellaneous articles

Composite

Of polyester

427185, 427195, 427459, 427460, 427461, 427485, 525437, 525444, 528288, 528291, 241 2428, B32B 2736, B05D 106, B05D 124, C08G 63685

Patent

active

057416028

ABSTRACT:
A heat-curable, epoxy-free coating composition comprises a dry blend of at least two different binder resins, each binder resin comprising of (a) a carboxyl-terminated polyester resin having an acid value from 20 to 200 mg KOH/g and a glass transition temperature of at least 40.degree. C., and (b) a .beta.-hydroxylalkylamide with at least two .beta.-hydroxylalkylamide groups per molecule; the at least two different binder resins differing in functionality, or in other words in the number of carboxyl and/or .beta.-hydroxylalkylamide groups per binder resin molecule. Along with the binder resins, the coating composition optionally includes further additives that are typical for the processing and use of powder coatings.

REFERENCES:
patent: 3842035 (1974-10-01), Klaren
patent: 4371638 (1983-02-01), Bernelin et al.
patent: 4414279 (1983-11-01), Bernelin et al.
patent: 4801680 (1989-01-01), Geary et al.
patent: 5264529 (1993-11-01), Nozaki et al.
patent: 5266657 (1993-11-01), Hammerton et al.
patent: 5321063 (1994-06-01), Shimada et al.
patent: 5393846 (1995-02-01), Hammerton et al.
Database Wpi, Derwent Publications Ltd., No. 89-156134, Apr. 17, 1989.

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