Patent · US Expired

Stabilized polyisocyanates

US5068402A · kind A · utility

6Cited by

5References

6Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Josef Pedain · Cologne, DE
Lothar Kahl · Bensberg, DE
Karl-Arnold Weber · Leverkusen, DE

Key dates

Filing date	Jul 20, 1990
Grant date	Nov 26, 1991
Priority date	—
Expiry date	Jul 20, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/7621
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention is directed to polyisocyanates containing a stabilizing amount of a carboxylic acid corresponding to the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 represent hydrogen or C.sub.1 -C.sub.5 -alkyl and PA1 X and Y represent hydrogen, chlorine or methyl, with the proviso that when X=Cl, Y=H or CH.sub.3 and when Y=Cl, X=H or CH.sub.3. The present invention is also directed to the use of the stabilized polyisocyanates as binders for coating compositions, sealing compounds and adhesives.

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