Patent · US Expired

Coating composition

US4501829A · kind A · utility

11Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 6, 1983
Grant dateFeb 26, 1985
Priority date
Expiry dateSep 6, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09D167/04
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A coating composition comprising (A) a polyester resin modified with a lactone having 6 to 8 ring carbon atoms (I) or a mixture of said lactone-modified polyester resin (I) and a non-modified polyester resin (II), the lactone content being from 5 to 40% by weight of the total polyester resin (in solid) (I) or (I+II), the number average molecular weight being 800.about.200 mg KOH/g and wherein the resinous acid value is 2.about.20 mg KOH/g, (B) a crosslinking agent, (C) a pigment and (D) optionally other resins. The composition is useful as an intercoat paint for automobile bodies.

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