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:
Jan. 06, 2009
Filed:
Oct. 21, 2004
Applicants:
Samir Zard, Gig sur Yvette, FR;
Béatrice Sire, Palaiseau, FR;
Philippe Jost, Lyons, FR;
Inventors:
Assignee:
Rhodia Chimie, Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08C 19/04 (2006.01); C08C 19/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for partial or total oxidation of one or several thiocarbonylthio ends of a polymer, obtained by radical polymerisation controlled by reversible addition-cleavage with thiocarbonylthio agents, Said method comprising the step of contacting said polymer with an ozone-containing gas, during which ozone reacts with the one or several thiocarbonylthio ends.