Aqueous composition and use thereof for paper production

US8097126B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Hans-Joachim Haehnle · Neustadt, DE
• Anton Esser · Mannheim, DE
• Volker Braig · Weinheim, DE
• Rainer Blum · Ludwigshafen, DE
• Peter G. Baumann · Stuttgart, DE
• Jacques Dupuis · Ludwigshafen, DE
• Josef Neutzner · Neustadt, DE

Key dates

• Filing date: Jul 15, 2005
• Grant date: Jan 17, 2012
• Expiry date: Dec 25, 2028

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H17/45
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to an aqueous composition comprising at least one finely divided filler and at least one water-soluble amphoteric copolymer, a process for the preparation of such a composition and its use as an additive in the production of paper, cardboard and board.