Dispersions of copolymers containing perfluoroalkyl groups

US5093398A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Jutta Rottger · Cologne, DE
• Karl-Heinz Passon · Leverkusen, DE
• Werner Maurer · Zizishausen, DE
• Rolf-Volker Meyer · Krefeld, DE
• Wilfried Kortmann · Hagen, DE
• Peter Selinger · Leverkusen, DE

Key dates

• Filing date: Oct 3, 1990
• Grant date: Mar 3, 1992
• Expiry date: Oct 3, 2010

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M15/277
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Aqueous dispersions of copolymers and graft copolymers of ethylenically unsaturated perfluoroalkyl monomers having at least 6 C atoms in the perfluorinated chain and ethylenically unsaturated monomers containing no perfluoroalkyl groups, which additionally contain certain ester compounds which cannot be used as comonomers, are outstandingly suitable for finishing textile materials, leather and the like. Excellent oleophobic and hydrophobic effects are obtained.