Water-dispersible polyester, its preparation, and its use as a hydrophiling agent

US4463165A · kind A · utility

Assignee

• Cassella Aktiengesellschaft · DE

Inventors

• Friedrich Engelhardt · Frankfurt, DE
• Karl Hintermeier · Frankfurt am Main, DE
• Otto Smerz · Kelkheim, DE
• Hans Wagener · Eschenburg, DE

Key dates

• Filing date: Nov 8, 1983
• Grant date: Jul 31, 1984
• Expiry date: Nov 8, 2003

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M15/507
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hydrophobic textile materials exhibit reduced tendency to static charge buildup, significantly improved absorbency and reduced soiling tendency when treated with a water-dispersible polyester having structural units of the formula ##STR1## wherein A is, on statistical average, 80 to 100 mol percent of p-phenylene and 0 to 20 mol percent of divalent moieties of the formula ##STR2## and wherein G is, on statistical average, 30 to 90 mol percent of linear or branched divalent alkane moieties having 3 to 6 carbon atoms which may be interrupted by 1 or 2 oxygen atoms, 10 to 30 mol percent of divalent polyether moieties having an average molecular weight of 1,000 to 3,000, and up to 50 mol percent of ethylene moieties, and R is a straight-chain or branched alkyl or alkenyl having 6 to 8 carbon atoms.