Patent · US Expired

Aqueous colored base coating composition

US6177488A · kind A · utility

4Cited by
20References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 13, 1996
Grant dateJan 23, 2001
Priority date
Expiry dateAug 13, 2016

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L63/00
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

The present invention provides an aqueous colored base coating composition (A) comprising a hydroxyl- and carboxyl-containing acrylic resin (A-1), a melamine resin (A-2), an alicyclic epoxy-containing compound (A-3), a neutralizing agent (A-4) and a coloring pigment (A-5). The present invention further provides a method for forming a topcoat which comprises applying the aqueous colored base coating composition (A) to a substrate and applying to the base coat an organic solvent type clear coating composition (B) to be cured by the crosslinking reaction between a carboxyl group and an epoxy group.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.