Patent · US Active

Thermoplastic polyurethanes

US8680213B2 · kind B2 · utility

0Cited by

8References

39Claims

0Family size

Assignee

BASF SE

Inventors

Norbert Pohlmann · Nortrup, DE
Andreas Przybilski · Büdelsdorf, DE
Rolf Steinberger · Schifferstadt, DE

Key dates

Filing date	Jul 9, 2007
Grant date	Mar 25, 2014
Priority date	—
Expiry date	Dec 3, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2250/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Thermoplastic polyurethanes are obtainable by reacting (a) isocyanates with (b1) polyesterdiols having a melting point greater than 150-C, (b2) polyetherdiols and/or polyesterdiols, each having a melting point of less than 150-C and a molecular weight of from 501 to 8 000 g/mol, and, if required, (c) diols having a molecular weight of from 62 to 500 g/mol.

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