Patent · US Expired

Waterdispersible cationic resins for electrodeposition

US4433078A · kind A · utility

23Cited by

5References

16Claims

0Family size

Assignee

Akzo N.V. · NL

Inventors

Hilde Kersten · Zell am Harmersbach, DE
Hans Zengel · Kleinwallstadt, DE
Anton Toth

Key dates

Filing date	Dec 3, 1980
Grant date	Feb 21, 1984
Priority date	—
Expiry date	Dec 3, 2000

Classification

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

Abstract

Waterdispersible cationic resins are formed by reacting the components comprising at least PA1 (A) an epoxidized polydiene, PA1 (B) a bisglycidylether of a polyphenol, PA1 (C) an amide compound, which is formed by one or more higher, substantially multiply unsaturated fatty acids and a polyamine and which may comprise a ketimine group or a hydroxy group, and possibly PA1 (D) an organic secondary amine and/or PA1 (E) a partially and/or fully masked polyisocyanate, which product comprises excess epoxide groups and carbon-carbon double bonds and which resins can be made waterdispersible with an acid under formation of cationic groups. A composite is provided comprising the cationic resin superposed on a conducting substrate and a method is described for forming the composite.

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