Chlorine-free multifunctional resins for paper finishing

US5503714A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Jurgen Reiners · Leverkusen, DE
• Hans-Josef Laas · Odenthal, DE
• Joachim Konig
• Helmut Reiff
• Joachim Probst · Leverkusen, DE
• Bruno Bomer · Bensberg, DE
• Reinhard Halpaap · Odenthal, DE
• Fritz Puchner · Cologne, DE
• Harro Traubel · Leverkusen, DE

Key dates

• Filing date: Jul 30, 1993
• Grant date: Apr 2, 1996
• Expiry date: Jul 30, 2013

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H21/20
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a new process for the preparation of cellulose-containing material provided with a dry-strength and wet-strength finish and/or sized, characterized in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I), which contains tertiary amino and/or ammonium groups, optionally polyether units and optionally hydrophobic groups.