Process for improving the sliding properties of linear polyester material in spinning operations

US4177231A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Rolf Kleber · Neu-Isenburg, DE
• Ulrich Cuntze

Key dates

• Filing date: Mar 7, 1978
• Grant date: Dec 4, 1979
• Expiry date: Mar 7, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2969
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Process for improving the sliding properties of linear polyester material in spinning operations, which comprises treating this material after the drawing with a mixture of the following components: PA1 (a) 50 to 90% by weight of a condensation product of formula I ##STR1## in which R.sub.1 is C.sub.10 -C.sub.22 alkyl or alkenyl, y is a number of from 20 to 40, and x plus z have a weight of less than 20% by weight of the polypropylene oxide portion, and PA1 (b) 50 to 10% by weight of a compound of formulae II and/or III ##STR2## in which R.sub.2 and R.sub.3 are C.sub.8 -C.sub.18 alkyl or alkenyl, and x and/or y are numbers of from 5 to 20.