Patent · US Expired

Cathodically depositable electrodeposition paint binders based on reaction products of epoxy resin-amino adduct with formaldehyde and phenols

US4568709A · kind A · utility

9Cited by

5References

27Claims

0Family size

Assignee

Vianova Kunstharz, AG · AU

Inventors

Willibald Paar · Graz, AT
Johann Gmoser · Graz, AT
Helmut Honig · Geretsried, DE
Wolfgang Daimer · Graz, AT

Key dates

Filing date	Mar 18, 1985
Grant date	Feb 4, 1986
Priority date	—
Expiry date	Mar 18, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S524/901
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Cathodically depositable electrodeposition paint binders comprising the reaction product of an epoxy resin with at least two epoxy groups with amines carrying primary amino groups and, optionally, with a carboxylic acid compound to provide an epoxy resin-amino adduct which is then reacted with a phenol and formaldehyde. The binders have excellent corrosion resistance and crosslink to provide coating films at relatively low stoving temperatures without splitting off of substances harmful to the environment.

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