Patent · US Active

Transparent hard thermoplastic polyurethanes

US12077628B2 · kind B2 · utility

0Cited by

4References

14Claims

0Family size

Assignee

BASF SE

Inventors

Sebastian Richter · Esslingen am Neckar, DE
Zeljko Tomovic · Bohmte, DE
Sirus Zarbakhsh · Ludwigshafen, DE

Key dates

Filing date	Jun 18, 2019
Grant date	Sep 3, 2024
Priority date	—
Expiry date	Aug 30, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J5/18
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 at least one polyol (P1) which has a molecular weight Mw in the range from 500 to 2500 g/mol and has at least one aromatic polyester block (B1), wherein the polyol (P1) includes 20% to 70% by weight of the aromatic polyester blocks (B1), based on the overall polyester polyol (P1). 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.