US 10,913,868 B2 · Aqueous coating composition

Abstract

The problem to be solved by the present invention is to provide an aqueous coating composition that can form a multilayer coating film having excellent storage stability, excellent adhesion to plastic base materials, excellent finish, and excellent coating film performance, such as water resistance; and to also provide a coating method using the composition. The present invention provides an aqueous coating composition comprising (A) an aqueous dispersion of a modified polyolefin, (B) an aqueous acrylic resin and/or an aqueous polyester resin, and (C) a phosphoric acid compound represented by a specific formula; and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.

Claims18

Dependent claims

An aqueous coating composition for vehicles, comprising:

(A) an aqueous dispersion of a modified polyolefin,
(B) an aqueous acrylic resin and/or an aqueous polyester resin, and
(C) a phosphoric acid compound represented by the following Formula (1):
wherein m is 1 or 2, n is 0 or an integer of 1 to 20,
R1 is substituted or unsubstituted hydrocarbon having 2 or more and 11 or less carbon atoms,
when m is 2, each R1 may be the same or different,
R2 is C2-4 alkylene,
when n is 2 or more, n number of oxyalkylene units (R2O) may be the same or different, and
when m is 2, each (R2O)n may be the same or different, and
wherein the modified polyolefin is a polyolefin modified with an unsaturated carboxylic acid or an acid anhydride thereof.

7 more elements

Dependencies are inferred from the claim text.

Aqueous coating composition

Life of this patent

Aqueous coating composition

Life of this patent

Abstract

Claims18