Branched and star-branched styrene polymers, telomers, and adducts, their synthesis, their bromination, and their uses

US8476373B2 · kind B2 · utility

Assignee

• ALBEMARLE CORPORATION · US

Inventors

• William J. Layman, Jr. · Baton Rouge, US
• Charles H. Kolich · Baton Rouge, US
• Arthur G. Mack · Gonzales, US
• Jonathan P. McCarney · Kalamazoo, US
• Govindarajulu Kumar · Baton Rouge, US
• Jorge Morice · Baton Rouge, US
• Zhongxin Ge · Baton Rouge, US
• Bo Liu · San Diego, US
• Douglas W. Luther · Walker, US
• Kimberly M. White · Baton Rouge, US
• Junzuo Wang · Little Rock, US
• Ravindra R. Joshi · Santa Clarita, US
• Hoover Chew · Summerville, US

Key dates

• Filing date: Nov 30, 2009
• Grant date: Jul 2, 2013
• Expiry date: Nov 30, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

New branched or star-branched styrene polymeric, telomeric, and monomeric product distributions, their preparation, their use as raw materials for bromination to produce flame retardants, the flame retardants themselves, and their use as flame retardants in various polymeric substrates are described.