Patent · US Expired

Pigment paste resins for cathodically depositable coating compositions

US5905103A · kind A · utility

2Cited by

4References

9Claims

0Family size

Assignee

Vianova Resins AG · DE

Inventors

Helmut Honig · Geretsried, DE
Georg Pampouchidis · Graz, AT
Willibald Paar · Graz, AT
Herbert Matzer · Graz, AT
Manfred Valtrovic · Graz, AT

Key dates

Filing date	Mar 15, 1993
Grant date	May 18, 1999
Priority date	—
Expiry date	Mar 15, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D17/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to a process for the preparation of pigment paste resins for cathodically depositable coating compositions, wherein diepoxide compounds which contain polyoxyalkylene structures and alkyl and/or alkylene and/or hydroxyalkyl radicals having more than 3 carbon atoms are first reacted to form epoxy resin/amine adducts and final products with oxazolidine structures are obtained by a partial or complete reaction of secondary amino groups with formaldehyde.

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