Patent · US Expired

Continuous preparation of thermoplastically processable polyurethanes

US6930162B2 · kind B2 · utility

3Cited by

8References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Wolfgang Brauer · Leverkusen, DE
Herbert Heidingsfeld · Frechen, DE
Henricus Peerlings · Solingen, DE
Ludwig Trabert · Krefeld, DE

Key dates

Filing date	Aug 19, 2003
Grant date	Aug 16, 2005
Priority date	—
Expiry date	Aug 19, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/0895
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a multi-stage process for the continuous preparation of thermoplastically processable polyurethanes with improved processing properties based on various polyols.

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