Copolymerizable surfactants (1)

US8183320B2 · kind B2 · utility

Assignee

• Cognis IP Management GmbH · DE

Inventors

• Ronald Klagge · Erkrath, DE
• Uwe Held · Velbert, DE
• Thomas Mausberg · Haan, DE
• Katharina Hömberg · Hilden, DE
• Thomas Schliwka · Bensberg, DE

Key dates

• Filing date: Jun 28, 2010
• Grant date: May 22, 2012
• Expiry date: Jun 28, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F222/205
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention is directed to the use of maleic esters selected from compounds of formulae (I), (II) and (III), as copolymerizable emulsifiers in the emulsion polymerization of olefinically unsaturated monomers, in which A is a C3-C40 alkyl group; X, Y and Z independently are hydrogen or methyl; B and D independently are sulfate, phosphate or hydrogen; n and p independently are numbers in the range from 0 to 40; and m is a number in the range from 2 to 40.