Patent · US Expired

Process for the production of blocked compounds optionally containing free hydroxyl groups and their use for the production of polyurethanes

US4439591A · kind A · utility

1Cited by

2References

6Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hans-Ulrich Buschhaus · Krefeld, DE
Kurt Findeisen · Odenthal, DE
Hans-Joachim Traenckner · Leverkusen, DE
Wolfgang Beer

Key dates

Filing date	Apr 25, 1983
Grant date	Mar 27, 1984
Priority date	—
Expiry date	Apr 25, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/3848
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for the production of compounds containing reversibly blocked and, optionally, free alcoholic hydroxyl groups, characterized in that organic compounds containing at least one alcoholic hydroxyl group, but otherwise being inert under the reaction conditions are reacted at 0.degree. to 140.degree. C. with N,N'-disubstituted 5-acylimino-imidazolidine diones. The present invention also relates to the use of these compounds for the production of polyurethanes.

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