Solventborne and activated solventborne paint packs, and waterborne coating compositions containing them
AssigneePPG Industries Ohio, Inc.
InventorJames William Casper
Life of this patent
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Abstract
A pigmented solventborne paint pack which can be made into a waterborne coating composition is provided, which comprises: i) a solution in an organic solvent of polymer having functional groups and hydrophilic groups; and ii) a waterborne pigment dispersion comprising pigment dispersed in water in the presence of a pigment dispersant, the aqueous pigment dispersion itself being in dispersion in the solution of i). Also provided is a solventborne activated paint pack comprising the paint pack described above and further comprising a crosslinker which is dissolved in the organic solvent. Further provided is a waterborne coating composition which comprises a dispersion in an aqueous medium of the solventborne activated paint pack.
Claims18
A coating composition comprising:
- (a) a pigmented solventborne paint pack comprising a water-in-oil emulsion comprising:
- i) a solution in an organic solvent of a polymer having functional groups and hydrophilic groups;
- and
- ii) a waterborne pigment dispersion comprising pigment dispersed in water in the presence of a pigment dispersant, the aqueous pigment dispersion itself being in dispersion in said solution i), and
- (b) an aqueous phase,
- wherein the pigmented solventborne paint pack is dispersed in the aqueous phase.
A coatina composition comprising:
- (a) a pigmented solventborne activated paint pack comprising a water-in-oil emulsion comprising:
- i) a solution in an organic solvent of a polymer having functional groups and hydrophilic groups;
- ii) a waterborne pigment dispersion comprising pigment dispersed in water in the presence of a pigment dispersant, the aqueous pigment dispersion itself being in dispersion in said solution i);
- and
- iii) a crosslinker which is dissolved in the organic solvent;
- and
- (b) an aqueous phase;
- wherein the pigmented solventborne activated paint pack is dispersed in the aqueous phase.
Dependencies are inferred from the claim text.