US 12,252,625 B2 · Coating composition

Abstract

A coating composition having excellent trickle resistance which forms a coating film that exhibits excellent gloss stability. The coating composition contains a hydroxyl group-containing acrylic resin (A), a polyisocyanate compound (B), a matting agent (C), an organic solvent (D1) and an organic solvent (D2), and wherein the organic solvent (D1) has a specified boiling point and solubility parameter; the organic solvent (D2) has a specified boiling point and solubility parameter; and with respect to the contents of the organic solvent (D1) and the organic solvent (D2) based on 100 parts by mass of the total solid content of the hydroxyl group-containing acrylic resin (A) and the polyisocyanate compound (B), the content of the organic solvent (D1) is within the range of 5-40 parts by mass and the content of the organic solvent (D2) is within the range of 35-75 parts by mass.

Claims18

Dependent claims

A clear coating material composition comprising a hydroxyl group-containing acrylic resin (A), a polyisocyanate compound (B), a matting agent (C), an organic solvent (D1) and an organic solvent (D2), which components (A), (B), (C), (D1) and (D2) form said clear coating material composition, wherein:

the organic solvent (D1) is an organic solvent with a boiling point in a range of 190 to 250° C. and a solubility parameter of 9.3 to 10.5,
the organic solvent (D2) is an organic solvent with a boiling point in a range of 100 to 140° C. and a solubility parameter of 8 or greater and less than 9, and
a content of the organic solvent (D1) is in a range of 5 to 40 parts by mass and a content of the organic solvent (D2) is in a range of 35 to 75 parts by mass, based on 100 parts by mass of a total solid content of the hydroxyl group-containing acrylic resin (A) and polyisocyanate compound (B).

Dependencies are inferred from the claim text.

Coating composition

Life of this patent

Coating composition

Life of this patent

Abstract

Claims18