Method for the production of paper, cardboard and card

US7918965B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Marc Leduc · Speyer, DE
• Oliver Koch · Eppelheim, DE
• Simon Champ · Ludwigshafen, DE
• Rainer Blum · Ludwigshafen, DE
• Andreas Merkel · Recklinghausen, DE
• Knut Menke · Münstermaifeld, DE

Key dates

• Filing date: Sep 5, 2006
• Grant date: Apr 5, 2011
• Expiry date: Nov 24, 2027

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H17/68
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Process for the production of paper, board and cardboard by draining a paper stock with sheet formation in the presence of a retention aid system comprising