Patent · US Expired

Process for the preparation of polyisocyanates containing allophanate groups

US4177342A · kind A · utility

31Cited by

8References

9Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Manfred Bock · Leverkusen, DE
Josef Pedain · Cologne, DE
Wilhelm Slawyk · Cologne, DE
Klaus Konig · Leverkusen, DE

Key dates

Filing date	May 24, 1978
Grant date	Dec 4, 1979
Priority date	—
Expiry date	May 24, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/7837
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

This invention relates to a new process for the preparation of new organic polyisocyanates having at least three isocyanate groups and containing allophanate groups, to the polyisocyanates obtainable by this process, and to their use as components for the production of polyurethane resins.

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