Polymer dispersion for impregnating paper

US6767646B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Hermann Seyffer · Heidelberg, DE
• Titus Leman · Jakarta, ID
• Peter Claassen · Ludwigshafen, DE
• Kai Olfermann · Kaiserslautern, DE
• Thomas Wirth · Freinsheim, DE
• Jurgen Schmidt-Thummes · Schifferstadt, DE

Key dates

• Filing date: Sep 23, 2002
• Grant date: Jul 27, 2004
• Expiry date: Sep 23, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31993
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A process for impregnating base paper or fiber webs with an aqueous dispersion of a polymer of free-radically polymerizable compounds (monomers), which comprises from 0.1 to 5% by weight of the monomers being methacrylic acid.