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:
Aug. 10, 2010
Filed:
Jul. 23, 2003
Jean-luc Couturier, Lyons, FR;
Olivier Guerret, La Tour de Salvigny, FR;
Denis Bertin, Marseilles, FR;
Didier Gigmes, Marseilles, FR;
Sylvain Marque, Antraigues sur Volane, FR;
Paul Tordo, Marseilles, FR;
Florence Chauvin, King of Prussia, PA (US);
Pierre-emmanuel Dufils, Saint Aubin Epinay, FR;
Jean-Luc Couturier, Lyons, FR;
Olivier Guerret, La Tour de Salvigny, FR;
Denis Bertin, Marseilles, FR;
Didier Gigmes, Marseilles, FR;
Sylvain Marque, Antraigues sur Volane, FR;
Paul Tordo, Marseilles, FR;
Florence Chauvin, King of Prussia, PA (US);
Pierre-Emmanuel Dufils, Saint Aubin Epinay, FR;
Arkema France, Colombes, FR;
Abstract
A subject-matter of the invention is alkoxyamines resulting from β-phosphorated nitroxides corresponding to the formula: in which R represents an alkyl radical having a number of carbon atoms ranging from 1 to 3, Rrepresents a hydrogen atom or a residue: in which Rrepresents an alkyl radical having a number of carbon atoms ranging from 1 to 20, and Rrepresents a hydrogen atom, an alkyl radical having a number of carbon atoms ranging from 1 to 8, a phenyl radical, an alkali metal, such as Li, Na or K, HN, BuNor BuHN, exhibiting a kinetic dissociation constant kd, measured at 120° C. by EPR, of greater than 0.05 s. These compounds can be used as initiators for the (co)polymerizations of at least one monomer which can be polymerized by the radical route.