Patent · US Expired

Highly reactive polyoxyalkylene-polyols containing tertiary amino groups in bonded form, their preparation, and their use for the preparation of polyisocyanate polyaddition products

US5476969A · kind A · utility

28Cited by

6References

3Claims

0Family size

Assignee

BASF SE

Inventors

Werner Hinz · Bischofswerda, DE
Stefan Adams · Pforzheim, DE
Ulrich Koehler · Heidelberg, DE
Christian Maletzko · Altrip, DE
Klaus Vorspohl · Stockach, DE
Ruth Zschiesche · Mannheim, DE

Key dates

Filing date	Sep 28, 1992
Grant date	Dec 19, 1995
Priority date	—
Expiry date	Sep 28, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2110/0041
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to highly reactive polyoxyalkylene-polyols prepared by oxyalkylation of an initiator molecule containing, in bonded form, at least 2 reactive hydrogen atoms and at least one tertiary amino group bonded via a spacer bridge, which preferably comprises an alkylene radical having at least 3 carbon atoms, by means of at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, to a process for the preparation of these polyoxyalkylene-polyols, and to their use for the production of compact or cellular, preferably flexible polyisocyanate polyaddition products.

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