Patent · US Active

Polyurethane with improved tear strength

US11447596B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignee

BASF SE

Inventors

Sebastian Richter · Esslingen am Neckar, DE
Zeljko Tomovic · Bohmte, DE
Kathrin Cohen · Ludwigshafen am Rhein, DE

Key dates

Filing date	Dec 22, 2017
Grant date	Sep 20, 2022
Priority date	—
Expiry date	Jun 3, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2067/003
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a thermoplastic polyurethane obtainable or obtained by reacting a polyisocyanate composition, a chain extender, and a polyol composition, wherein the polyol composition comprises a polyol (P1) which has a molecular weight Mw in the range from 1500 to 2500 g/mol and has at least one aromatic polyester block (B1). The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.

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