Process for the preparation of graft rubber latexes having a reduced residual monomer content

US6620883B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Erich Gasche · Odenthal, DE
• Herbert Eichenauer · Dormagen, DE
• Pierre Vanhoorne · Monheim, DE
• Ulrich Jansen · Düsseldorf, DE
• Eckhard Wenz · Neunburg vorm Wald, DE
• Stefan Moss · Haan, DE

Key dates

• Filing date: Sep 26, 2001
• Grant date: Sep 16, 2003
• Expiry date: Sep 26, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L55/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the preparation of graft rubber polymers of the ABS type by emulsion polymerization according to the so-called fed batch process, in which latexes having markedly reduced residual monomer contents are obtained, and to compositions containing the mentioned graft rubber polymers. The polymers so obtained have no negative effects at all on other properties