Patent · US Expired

Process for making water diluted electroinsulation enamels

US4104221A · kind A · utility

10Cited by

5References

16Claims

0Family size

Assignee

Dr. Beck + CO.AG · DE

Inventors

Harald Janssen · Glinde, DE
Ferdinand Hansch · Wedel, DE

Key dates

Filing date	Aug 24, 1976
Grant date	Aug 1, 1978
Priority date	—
Expiry date	Aug 24, 1996

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/294
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Water dilutable electroinsulation enamels are made by reacting a hydroxyl group containing polyesteramide of low acid number with at least one amine in an amount of 5 to 30% by weight relative to the weight of the ester imide whereupon the reaction product is diluted with water until it has the desired viscosity for lacquering purposes.

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