Polyester-based coating compositions having high pigment-to-bind

Details Polyester-based coating compositions having high pigment-to-bind Polyester-based coating compositions having high pigment-to-bind

1991-06-18

1994-08-02

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524597, 428482, 528274, C08L 6700, C08G 6378

Patent

active

053346521

ABSTRACT:
The present invention is directed towards liquid coating formulations containing a mixture of a curable polyester or diester resin, an amino crosslinking agent and a pigment wherein the pigment is dispersed in the coating solution at a weight loading level such that the pigment to binder ratio falls within the range of from 1.25 to 1 up to about 5.0 to 1. The polyester or diester resins employed in the coating formulations are such that when formulated with an appropriate crosslinking agent, acid catalyst and pigment within the ranges stated above and properly applied to a substrate and cured, produce coatings having a minimum Knoop hardness of at least about 4 and a flexibility (T-bend test) of less than 6, generally less than about 5, and a MEK rub value of greater than 5, more preferably at least about 15 and most preferably greater than 50.
Cured coating compositions prepared in accordance with this invention exhibit all of the attributes considered essential for coil coatings, i.e., good adhesion to the substrate and good gloss, and in addition provide an excellent balance of flexibility and hardness qualities despite high pigment loadings, and good to excellent weatherability when exposed to outdoor conditions.

REFERENCES:
patent: 3714090 (1973-01-01), Lasher
patent: 3714091 (1973-01-01), Lasher
patent: 4140729 (1979-02-01), Tobias et al.
patent: 4229555 (1980-10-01), Tobias et al.
patent: 4303563 (1981-12-01), Emmons et al.
patent: 4343925 (1982-08-01), Chang et al.
patent: 4358477 (1982-11-01), Noomen et al.
patent: 4393121 (1983-07-01), Tobias et al.
patent: 4520188 (1985-05-01), Holzrichter et al.
patent: 4734467 (1988-03-01), Yamada et al.
patent: 4981944 (1991-01-01), Bartels et al.

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