Wash primer composition
AssigneeAxalta Coating Systems IP Co., LLC
InventorsEric Houze, Anja Lothert, Gaurang Bhargava, Martin Wendt, Robert Nahas, Iain Harvey
Life of this patent
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Abstract
A coating composition includes a (A) binder component and a (B) pigment component. The (A) binder component includes (A1) polyvinyl butyrate, (A2) a particular film forming resin, (A3) an acid, (A4) an optional functionalized tri-alkoxy silane, and (A5) an optional polymeric phosphate ester. The (B) pigment component includes (B1) a calcium ion-exchanged silica, (B2) a corrosion inhibiting pigment, and (B3), a polyalkylene oxide phosphate. The coating composition is formed by combining the aforementioned components. In a method, the coating composition is applied to a substrate.
Claims20
A coating composition comprising:
- A. a binder component comprising;
- (A1) polyvinyl butyral present in an amount of from about 30 to about 70 parts by weight based on 100 parts by weight of said binder component;
- (A2) a film forming resin that is Poly(Bisphenol A-Co-Epichlorohydrin) Glycidyl End-Capped and that is present in an amount of from about 10 to about 40 parts by weight based on 100 parts by weight of said binder component;
- (A3) an acid present in an amount of from about 13 to about 30 parts by weight based on 100 parts by weight of said binder component;
- and
- (A4) a functionalized tri-alkoxy silane present in an amount of from about 3 to about 10 parts by weight based on 100 parts by weight of said binder component;
- B. a pigment component comprising;
- (B1) a calcium ion-exchanged silica present in an amount of from about 30 to about 40 parts by weight based on 100 parts by weight of said binder component;
- (B2) a corrosion inhibiting pigment present in an amount of from about 40 to about 50 parts by weight based on 100 parts by weight of said binder component;
- and
- (B3) a polyalkylene oxide phosphate present in an amount of from about 1 to about 7 parts by weight based on 100 parts by weight of said binder component.
Dependencies are inferred from the claim text.