Patent · US Expired

Storage stable methylene bis(phenylisocyanate) compositions

US6489503B1 · kind B1 · utility

5Cited by

9References

22Claims

0Family size

Assignee

BASF SE

Inventors

Thirumurti Narayan · Grosse Ile Township, US
Anthony Lunato · Trenton, US
Jon S. Speier · Baton Rouge, US
David D. Peters · Wyandotte, US
Cynthia Loop · Wyandotte, US
Filip Nevejans · Sint-Niklaas, BE

Key dates

Filing date	Nov 9, 1999
Grant date	Dec 3, 2002
Priority date	—
Expiry date	Nov 9, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/725
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention provides a liquid methylene bis(phenylisocyanate) composition including a high concentration of methylene bis(phenylisocyanate) which has an improved storage stability. The invention further provides a method of making the liquid methylene bis(phenylisocyanate) compositions of the present invention.

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