Poly(arylene ether)-polysiloxane composition and method

US8017697B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Alvaro Carrillo · Delmar, US
• Stephen M. Farnell · Mechanicville, US
• Hua Guo · Nanhu, CN
• Gerardo Rocha-Galicia · Clifton Park, US
• Farah Jean-Jacques Toublan · Urbana, US

Key dates

• Filing date: Nov 25, 2008
• Grant date: Sep 13, 2011
• Expiry date: May 14, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/05
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic composition includes a poly(arylene ether) and a poly(arylene ether)-polysiloxane block copolymer. The thermoplastic composition is prepared by a method that includes oxidatively copolymerizing a monohydric phenol and a hydroxyaryl-terminated polysiloxane. The method is simpler than prior methods of preparing poly(arylene ether)-polysiloxane block copolymers by linking pre-formed poly(arylene ether) and polysiloxane blocks. The method is also produces greater incorporation of polysiloxane into the poly(arylene ether)-polysiloxane block copolymer than prior methods of copolymerizing monohydric phenols and hydroxyaryl-terminated polysiloxane.