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:
Jun. 14, 2016
Filed:
Jun. 28, 2010
Yuan-yong Yan, Copley, OH (US);
Zengquan Qin, Copley, OH (US);
Xiao-dong Pan, Akron, OH (US);
David M. Roggeman, North Royalton, OH (US);
Yuan-Yong Yan, Copley, OH (US);
Zengquan Qin, Copley, OH (US);
Xiao-Dong Pan, Akron, OH (US);
David M. Roggeman, North Royalton, OH (US);
Bridgestone Corporation, Tokyo, JP;
Abstract
A group of compounds defined by the general formula (I) can be used to anionically initiate polymerization of unsaturated monomers. In the formula, M is an alkali metal atom, Ris an aryl group having at least one ORsubstituent group where each Ris a group that is nonreactive toward M, and R is a hydrocarbyl group. The subject initiators can be used in semi-batch and continuous polymerization processes, even those which are performed at elevated temperatures.