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:
Oct. 08, 2013
Filed:
Mar. 31, 2009
Robson F. Storey, Hattiesburg, MS (US);
Casey D. Stokes, Novato, CA (US);
James J. Harrison, Novato, CA (US);
Nemesio Martinez-castro, Bristol, PA (US);
Robson F. Storey, Hattiesburg, MS (US);
Casey D. Stokes, Novato, CA (US);
James J. Harrison, Novato, CA (US);
Nemesio Martinez-Castro, Bristol, PA (US);
The University of Southern Mississippi, Hattiesburgh, MS (US);
Chevron Oronite Company LLC, San Ramon, CA (US);
Abstract
Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with a functionalized N-substituted pyrrole to thereby introduce the functionalized N-substituted pyrrole at the terminal reactive polymer chain end(s). A method is also disclosed whereby the N-substituent may be derivatized to a basic amine containing functional group. Also disclosed are the terminal functionalized polyisobuyl N-substituted pyrrole compounds where the polyisobutyl group is substituted at the 2 and 3 position of the N-substituted pyrrole.