Patent · US Expired

Polyurethane prepolymers having alkoxysilane end groups, method for the production thereof and their use for the production of sealants

US6545087B1 · kind B1 · utility

22Cited by

5References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Lutz Schmalstieg · Neunburg vorm Wald, DE
Ralf Lemmerz · Leverkusen, DE
Marie-Helene Walter · Langenfeld, DE
Oswald Wilmes · Recklinghausen, DE

Key dates

Filing date	Apr 12, 2001
Grant date	Apr 8, 2003
Priority date	—
Expiry date	Apr 12, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2190/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

This invention relates to polyurethane prepolymers which comprise alkoxysilane terminal groups and which are based on special, very high molecular weight polyurethane prepolymers, to a method of producing them and to their use as binders for low-modulus sealing materials.

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