Patent · US Expired

Polyether allophanates stable towards discolouration

US7038003B2 · kind B2 · utility

2Cited by

19References

16Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Michael Mager · Leverkusen, DE
Joachim Simon · Grevenbroich, DE
Malte Homann · Odenthal, DE

Key dates

Filing date	Mar 23, 2005
Grant date	May 2, 2006
Priority date	—
Expiry date	Mar 23, 2025

Classification

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

Abstract

A process for preparing polyisocyanate prepolymers containing allophanate structural units that includes reacting

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