Spin finished aramid fibers and use thereof

US5674615A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Richard Neuert · Kelheim, DE
• Gerhard Stein · Kelheim, DE

Key dates

• Filing date: Mar 24, 1995
• Grant date: Oct 7, 1997
• Expiry date: Mar 24, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2969
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Described are aramid fibers with a spin finish comprising PA1 A) a compound of the formula I and/or II EQU R.sup.1 --COO--(R.sup.2 --O).sub.x --R.sup.3 (I) EQU R.sup.3 --(O--R.sup.2).sub.x --OOC--R.sup.4 --COO--(R.sup.2 --O).sub.x --R.sup.3 (II) PA1 and B) a compound of the formula III ##STR1## where R.sup.1 is alkyl or alkenyl having eight to eighteen carbon atoms, x is an integer from four to twenty, R.sup.2 is butylene, propylene or ethylene, R.sup.3 is hydrogen or C.sub.1 -C.sub.22 -alkyl or C.sub.2 -C.sub.22 -alkenyl, R.sup.4 is alkylene or alkenylene having eight to eighteen carbon atoms, R.sup.5 is alkyl or alkenyl having eight to eighteen carbon atoms, R.sup.6 and R.sup.7 are each alkyl having one to twelve carbon atoms, and R.sup.8 is alkylene having one to four carbon atoms. The aramid fibers are usable in particular in the production of textile sheet materials by intermingling, twisting, braiding or folding.