Patent · US Expired

Water-dispersible binders for cationic electrodepositable paints, and method for their production

US4609691A · kind A · utility

22Cited by

5References

17Claims

0Family size

Assignee

BASF Farben Fasern Aktiengesellschaft · DE

Inventors

Michael Geist · Munster, DE
Gunther Ott · Hachenburg, DE
Georg Schon · Everswinkel, DE

Key dates

Filing date	Aug 31, 1984
Grant date	Sep 2, 1986
Priority date	—
Expiry date	Aug 31, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D5/4434
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to water-dispersible binders for cationic electro-dip paints with a base of modified epoxy resins. The binders are produced by reaction of PA1 (A) epoxy resins having a molecular weight of at least 350 with PA1 (B) elasticized polyphenols having a molecular weight of over 350 with addition to the epoxide groups and further reaction of the reaction product of (A) and (B) with PA1 (C) primary and/or secondary amines or ammonium salts to obtain the required water-dispersibility.

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