Patent · US Expired

Hydroxyl group-containing epoxy resin reacted with polyoxyalkylene (urethane)-isocyanate

US5274012A · kind A · utility

6Cited by

7References

2Claims

0Family size

Assignee

Witco Corporation · US

Inventors

Bernd Neffgen · Cappenberg, DE
Wolfgang Scherzer · Bergkamen, DE

Key dates

Filing date	Nov 6, 1992
Grant date	Dec 28, 1993
Priority date	—
Expiry date	Nov 6, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G59/28
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to modified polyoxyalkylene epoxy resins based on polyhydric phenols prepared by the addition of polyethers and/or polyether monourethanes containing isocyanate groups to higher-molecular-weight hydroxyl group-containing polyglycidyl compounds, and to the use of these reaction products in the preparation of stable aqueous dispersions.

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