Brominated butadiene/vinyl aromatic copolymers, blends of such copolymers with a vinyl aromatic polymer and polymeric foams formed from such blends

US7851558B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Bruce A. King · Midland, US
• William G. Stobby · Midland, US
• Daniel J. Murray · Midland, US
• Anteneh Z. Worku · Pearland, US
• Inken Beulich · Laufenburg (Baden), DE
• Sheila M. Tinetti · Vernon Hills, US
• Stephen F. Hahn · Midland, US
• Ray E. Drumright · Midland, US

Key dates

• Filing date: Oct 23, 2006
• Grant date: Dec 14, 2010
• Expiry date: Dec 14, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2453/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermally stable brominated butadiene copolymer, such as brominated styrene/butadiene block copolymer, brominated random styrene/butadiene copolymer or brominated styrene/butadiene graft copolymer, preparation of the brominated butadiene copolymers, use of the brominated butadiene copolymers as a flame retardant additive and polymeric compositions, both foamed and non-foamed, that incorporate a flame-retarding amount of brominated butadiene copolymer.