Heat curable binders

US6730729B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Matthias Gerst · Maikammer, DE
• Matthias Laubender · Schifferstadt, DE
• Bernd Reck · Arnstadt, DE

Key dates

• Filing date: Apr 18, 2002
• Grant date: May 4, 2004
• Expiry date: Jul 12, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5415
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing an aqueous polymer dispersion comprisingan emulsion polymera polymer composed of at least 5% by weight of an ethylenically unsaturated monocarboxylic acid, dicarboxylic acid or dicarboxylic anhydride (acid polymer SP for short), andan alkoxysilane of the formulaSiR1R2R3R4in which the groups R1 to R4 independently of one another are each an organic radical with the proviso that at least one of the groups is an alkoxy group, which comprises preparing said emulsion polymer by emulsion polymerization in the presence of at least some of the alkoxysilane.