Method for producing poly(arylene ether) block copolymers

US8759458B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Martin Weber · Maikammer, DE
• Christian Schmidt · Bonn, DE
• Alexander Khvorost · Hemsbach, DE
• Cecile Gibon · Mannheim, DE
• Christian Maletzko · Altrip, DE

Key dates

• Filing date: Jun 2, 2010
• Grant date: Jun 24, 2014
• Expiry date: Jun 2, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L81/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the production of polyarylene ether block copolymers comprising, in a first stage, the reaction of at least one aromatic dihydroxy compound comprising 4,4′-dihydroxybiphenyl in a molar excess and of at least one aromatic dihalogen compound, to form a polybiphenyl sulfone polymer, and then, in a second stage, the reaction of the polybiphenyl sulfone polymer with at least one aromatic dihydroxy compound and of at least one aromatic dihalogen compound.The invention further relates to the resultant polyarylene sulfone block copolymers and to the use of the polyarylene sulfone block copolymers for the production of moldings, fibers, films, or foams.