Formulation for brightening synthetic fibers and its preparation and use

US4304569A · kind A · utility

Assignee

• Cassella Aktiengesellschaft · DE

Inventors

• Friedrich Engelhardt · Frankfurt, DE
• Karl Hintermeier · Frankfurt am Main, DE
• Herbert Friedrich · Heusenstamm, DE
• Thomas Martini · Bad Soden am Taunus, DE

Key dates

• Filing date: Nov 26, 1980
• Grant date: Dec 8, 1981
• Expiry date: Nov 26, 2000

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06L4/664
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The formulation for brightening synthetic fibers or mixtures of synthetic fibers and natural fibers, which is an aqueous dispersion comprising at least one finely divided optical brightener and a dispersing agent, wherein the improvement comprises the dispersing agent being a water-soluble or water-dispersible polyester containing at least one phosphonic acid ester moiety.