Process for sizing paper

US5314721A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Michael Muller · Bensberg, DE
• Joachim Probst · Leverkusen, DE
• Heinrich Alberts
• Joachim Konig
• Heinz Baumgen · Leverkusen, DE
• Fritz Puchner · Cologne, DE

Key dates

• Filing date: Jan 5, 1993
• Grant date: May 24, 1994
• Expiry date: Jan 5, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2/28
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The new vinyl polymer dispersions are obtainable by free radical polymerisation of olefinically unsaturated monomers in the presence of a cationic polyamidoamine which has been rendered hydrophobic, and can be used as sizing agents for paper which are distinguished, in particular, by their shear, electrolyte, heat and storage stability.