Patent · US Active

Aliphatic-aromatic polyester having elevated whiteness index

US11560450B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignee

BASF SE

Inventors

Klaus Scheuermann · Schifferstadt, DE
Robert Loos · Ludwigshafen, DE
Andreas Garbe · Ludwigshafen, DE
Kevin Müller · Coral Springs, US

Key dates

Filing date	May 22, 2018
Grant date	Jan 24, 2023
Priority date	—
Expiry date	Sep 28, 2039

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD10B2331/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to an aliphatic-aromatic polyester having a whiteness index according to ASTM E 313-73 of at least 25, to a process for preparation thereof and to the use of the aliphatic-aromatic polyester for production of polyester fibers (PF). The present invention further relates to the polyester fibers (PF) comprising the aliphatic-aromatic polyester.

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