Patent · US Active

Spinnable composition (sC), and polyester fibers (PF) made therefrom

US11946168B2 · kind B2 · utility

0Cited by

2References

12Claims

0Family size

Assignee

BASF SE

Inventors

Daniel Schilling · Ludwigshafen am Rhein, DE
Klaus Scheuermann · Schifferstadt, DE
Jerome Lohmann · Landau, DE
Gijsbrecht Jacobus Maria Habraken · Ludwigshafen am Rhein, DE

Key dates

Filing date	Feb 4, 2020
Grant date	Apr 2, 2024
Priority date	—
Expiry date	Nov 25, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/02
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a process for the preparation of a spinnable composition (sC) by mixing at least one terephthalate polyester (A), at least one aliphatic-aromatic polyester (B), at least one oligomer (C) and optionally at least one additive (D). Moreover, the present invention relates to the spinnable composition (sC) obtained by this process, a process for the preparation of polyester fibers (PF) by extruding the spinnable composition (sC) through at least one spinneret, the polyester fibers (PF) obtained by this process, textile materials (T) comprising the polyester fibers (PF) a process for dying the textile materials (T), and the use of the oligomer (C) for the improvement of the rheology and/or the dyeability of a composition comprising at least one terephthalate polyester (A) and at least one aliphatic aromatic polyester (B).

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