Wet-on-wet primer with low film build U.V. light protection

Details Wet-on-wet primer with low film build U.V. light protection Wet-on-wet primer with low film build U.V. light protection

1999-02-25

2000-03-07

Cain, Edward J.

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...

524496, C08K 300

Patent

active

060341661

ABSTRACT:
A sprayable, solvent-borne, primer composition for use as a first coat on light-sensitive, automotive plastic parts. The primer serves as a barrier to block ultraviolet light penetration to the underlying substrate and to prevent migration of substrate degradation and by-products up into the topcoat finishes. The primer is a solvent blend of a film-forming crosslinkable polymer resin, a crosslinker for the resin, a catalyst, carbon black pigments surface modified with a polymer dispersant and an organic pigment derivative co-dispersant, crosslinked polymer microgel particles, and U.V. absorbers and optional antioxidants. The surface modification on the carbon black pigments results in higher pigment loadings, which, in turn, imparts U.V. light protection at exceptionally low dry film builds. Furthermore, the microgel particles cause the primer to build in viscosity and set up a gel structure in its uncured state, which allows the primer to be overcoated wet-on-wet with automotive topcoat finishes and cured simultaneously in a single bake without diminishing the topcoat appearance and physical properties. The need for a separate primer bake prior to topcoat application is, therefore, eliminated.

REFERENCES:
patent: 5962574 (1999-10-01), Jackson et al.

Affiliated with

Also associated with

Rating

Wet-on-wet primer with low film build U.V. light protection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wet-on-wet primer with low film build U.V. light protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wet-on-wet primer with low film build U.V. light protection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-363972