Patent · US Expired

Polyester coil coating

US6897265B2 · kind B2 · utility

20Cited by

9References

16Claims

0Family size

Assignee

BASF SE

Inventors

Donald J. Algrim · Reynoldsburg, US
Daniel Calimente · Saline, US
Andrew Dell · Liverpool, GB
David Lindow · Farmington Hills, US

Key dates

Filing date	Oct 29, 2002
Grant date	May 24, 2005
Priority date	—
Expiry date	Jun 17, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A coil coating composition producing a coil coating with excellent properties at a lower peak metal temperature includes (a) a first, branched polyester prepared by condensation of a polyol component consisting essentially of a flexibilizing diol, 2-methyl-1,3-propanediol, and a polyol having at least three hydroxyl groups and an acid component consisting essentially of isophthalic acid; (b) a second, essentially linear polyester prepared by condensation of a polyol component consisting essentially of a flexibilizing diol and 2-methyl-1,3-propanediol and an acid component consisting essentially of isophthalic acid; and (c) a crosslinking agent.

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