Patent · US Expired

Prepolymers and cellular polyisocyanate polyaddition products produced therefrom

US7795322B2 · kind B2 · utility

1Cited by

5References

9Claims

0Family size

Assignee

BASF SE

Inventors

Elke Marten · Ostercappeln, DE
Elke Weigelt · Lingen (Ems), DE
Anand Huprikar · Novi, US
Michael Strauβ · Büdelsdorf, DE

Key dates

Filing date	Mar 8, 2006
Grant date	Sep 14, 2010
Priority date	—
Expiry date	Mar 8, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2350/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A prepolymer having an NCO content of less than 10%, based on the reaction of (a) diisocyanate with (b) polyether alcohol, the (b) polyether alcohol comprising (b1) and (b2) and/or (b3) with the following meanings for (b1), (b2) and (b3):

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