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AssigneePPG Industries Ohio, Inc.
InventorsMasayuki Nakajima, Charles M. Kania, Stephen G. McQuown, Karen S. Rechenberg, Susan A. Campbell, Kurt A. Humbert, Karen A. Barkac
Estimating the term…
A curable film-forming composition of 5 to 95 weight percent (based on the total resin solids weight in the composition) of a crosslinking agent; 5 to 95 weight percent ot a polymer containing functional groups reactive with the crosslinking agent; and 0.01 to 15 weight percent of at least one additive selected from a reaction product of phosporous acid and: at least one diepoxide; at least one diepoxide and at least one anhydride; at least one diepoxide and at least one anhydride, chain extended with at least one diol; at least one monoepoxide and at least one anhydride, chain extended with at least one diepoxide; and mixtures thereof. The additives in the composition prevent thermal oxidation, minimizing visual effects (i.e., yellowing). A multi-component composite coating includes a base coat and a top coat which may be derived from the above curable film-forming composition.
A curable film-forming composition comprising (i) 5 to 95 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent;
A multi-component composite coating comprising a pigmented film-forming composition serving as a base coat and a clear film-forming composition serving as a transparent topcoat over the base coat wherein the transparent topcoat is a curable film-forming composition comprising (i) 5 to 95 percent by weight based on the total weight of resin solids in the clear film-forming composition of a crosslinking agent;
Dependencies are inferred from the claim text.