Patent · US Expired

Synthetic resin carrying basic nitrogen groups, and its preparation

US4557814A · kind A · utility

14Cited by

9References

17Claims

0Family size

Assignee

BASF SE

Inventors

Eberhard Schupp · Schwetzingen, DE
Werner Loch · Erpolzheim, DE
Rolf Osterloh · Lechenich, DE
Klaas Ahlers · Munster, DE

Key dates

Filing date	Jul 11, 1984
Grant date	Dec 10, 1985
Priority date	—
Expiry date	Jul 11, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D163/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A synthetic resin which carries basic nitrogen groups and can be diluted with water as a result of protonation with an acid can be obtained by reacting an epoxy resin, having a mean molecular weight M.sub.n of from 300 to 6,000 and containing on average from 1.5 to 3.0 epoxide groups per molecule, with a diketimine of a primary diamine and, if appropriate, a secondary amine, which may additionally contain a tertiary amino group, a ketimine of a primary monoamine and/or a ketimine of a primary/tertiary diamine. These resins are useful as binders for coating agents, in particular for the cathodic electrocoating of electrically conductive substrates.

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