Compositions for the oil and water repellent finishing of fiber materials

US6387999B1 · kind B1 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Franz Dirschl · Augsburg, DE
• Simpert Ludemann · Bobingen, DE
• Edeltraud Schidek · Augsburg, DE
• Heinz Gaugenrieder · Zusmarshausen, DE
• Wilhelm Artner · Motzenhofen, DE

Key dates

• Filing date: Sep 25, 2000
• Grant date: May 14, 2002
• Expiry date: Sep 25, 2020

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M2200/12
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Compositions comprising an ester with perfluoroalkyl groups and an oligo- or polyurethane which may likewise contain perfluoroalkyl groups are useful for the oil and water repellant finishing of sheetlike textile materials. The compositions may additionally include acrylic polymers having perfluoroalkyl groups and extenders. Especially the use of nonionic aqueous dispersions of the compositions makes it possible to obtain textiles with little if any effect losses after mechanical abrasion and good LAD effects.