Hydrophobizing and oleophobizing compositions

US5164252A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Henning · Zorneding, DE
• Walter Meckel · Neuss, DE
• Thomas Munzmay · Dormagen, DE
• Wilfried Kortmann · Hagen, DE
• Peter Selinger · Leverkusen, DE
• Peter Nussbaum · Leverkusen, DE

Key dates

• Filing date: Nov 21, 1990
• Grant date: Nov 17, 1992
• Expiry date: Nov 21, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/2172
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Phobicity effects of high quality and permanence are obtained on textile materials of the most diverse types if these are finished with combinations of PA0 A) a polymer containing perfluoroalkyl groups and PA0 B) a cationically modified polyurethane. The new compositions are also distinguished by a comparatively low content of expensive fluorine compounds.