Patent · US Expired

Thermosetting polycondensates containing amide and imide groups, and their use

US4384061A · kind A · utility

12Cited by

3References

3Claims

0Family size

Assignee

BASF SE

Inventors

Udo Reiter · Telgte, DE
Helmut Lehmann · Bad Nauheim, DE
Walter Disteldorf · Monsheim, DE
Hans-Uwe Schenck · Monsheim, DE

Key dates

Filing date	Sep 21, 1981
Grant date	May 17, 1983
Priority date	—
Expiry date	Sep 21, 2001

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/294
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Thermosetting polycondensates containing amide and imide groups which are obtained by reacting 1,2,3,4-butanetetracarboxylic acid or its anhydride with one or more aliphatic, cycloaliphatic or aromatic diamines and one or more oxadicarboxylic acids or oxadicarboxylic acid esters of the general formula EQU ROOC--CH.sub.2 --O--(CH.sub.2).sub.2 --O--.sub.n CH.sub.2 --COOR where R is hydrogen or alkyl of 1 to 6 carbon atoms and n is 0 or an integer from 1 to 10, in a water-soluble organic solvent and/or water, at from 80.degree. to 200.degree. C. These polycondensates are useful as wire enamels, impregnating agents and adhesives.

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