Biodegradable spin finishes

US5266221A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Rolf Kleber · Neu-Isenburg, DE
• Lothar Jaeckel · Flörsheim, DE

Key dates

• Filing date: Oct 15, 1992
• Grant date: Nov 30, 1993
• Expiry date: Oct 15, 2012

Classification

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

Abstract

The invention relates to spin finishes which contain compounds of the formula EQU HO(CH.sub.2 CH.sub.2 O).sub.x --RO--(CH.sub.2 CH.sub.2 O).sub.y H I in which PA0 R is an alkylene radical which is mono- or polysubstituted by alkyl, has 2 to 4 carbon atoms in the alkylene chain and contains methyl, ethyl, propyl or isopropyl as the alkyl substituent, and PA0 the sum of x and y is 10 to 20, x and y being different from zero, and to a process for the spin finishing of fibers.