Patent · US Expired

Alkoxylation of active hydrogen compounds

US5126493A · kind A · utility

2Cited by

1References

6Claims

0Family size

Inventors

Wolfgang Hoelderich · Bischofswerda, DE
Jochen Houben · Kempen, DE
Gerhard Wolf · Mannheim, DE
Michael Gates Kinnaird · Durham, US

Key dates

Filing date	Apr 5, 1991
Grant date	Jun 30, 1992
Priority date	—
Expiry date	Apr 5, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C41/26
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Alkoxylates of active hydrogen compounds having a peaked molecular weight distribution are prepared by reacting the active hydrogen compound with an alkylene oxide of from 2 to 4 carbon atoms using iron oxides as alkoxylation catalysts.

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