The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2010
Filed:
May. 18, 2009
Wayne Meyer, West Lafayette, IN (US);
Jennifer L. Bohan, Lafayette, IN (US);
Larry D. Timberlake, West Lafayette, IN (US);
James D. Siebecker, West Lafayette, IN (US);
Wayne Meyer, West Lafayette, IN (US);
Jennifer L. Bohan, Lafayette, IN (US);
Larry D. Timberlake, West Lafayette, IN (US);
James D. Siebecker, West Lafayette, IN (US);
Chemtura Corporation, Middlebury, CT (US);
Abstract
A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.