Copolymers containing styrene oxide and use thereof as emulsifiers and dispersing agents

US7462660B2 · kind B2 · utility

Assignee

• Lariant Produkte (Deutshland) GmbH · DE

Inventors

• Klaus Poellmann · Burghausen, DE
• Martin Glos · Borken, DE
• Anton Strasser · Altötting, DE
• Eckart Kraemer · Wiesbaden, DE

Key dates

• Filing date: Oct 30, 2003
• Grant date: Dec 9, 2008
• Expiry date: May 28, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2650/34
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to copolymers of formula (I) wherein R1 is hydrogen, a C1-C5-alkyl radical or C2-C5-alkenyl radical which can also contain heteroatoms, an acid group or an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, R2 and R3 independently represent hydrogen, methyl and/or ethyl, n ranges from 0-100, and m ranges from 3 to 30, and k ranges from 1-200, and A is hydrogen, an acid group, a C1-C5-alkyl radical or a C2-C8-alkenyl radical which can also contain heteroatoms, an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, or a copolymer unit of formula (II), wherein R4 is hydrogen, a C1-C5-alkyl radical or a C2-C5-alkenyl radical which can also contain heteroatoms, an acid group or an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, R5 is hydrogen, methyl and/or ethyl, x ranges from 0 to 100, and y ranges from 3-30, wherein, if A is formula (2), R1 represents hydrogen or an acid group.