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. 30, 2002
Filed:
Jul. 24, 2000
Pierre Robert, Perignat-les-Sarlieve, FR;
Corinne Fradin-Cohas, Clermont-Ferrand, FR;
Bernard Anselme, Pont-du-Chateau, FR;
Michelin Recherche et Technique S.A., Grantes-Paccot, CH;
Abstract
The present invention relates to a process for carbonation of a living diene polymer obtained anionically. The carbonation process according to the invention is of the type consisting in spraying a solution of said polymer through at least one nozzle ( ) into a chamber ( ), in the form of droplets and in contact with carbon dioxide, into a bath which is substantially at rest filling said chamber ( ) and formed of said carbon dioxide, such that said sprayed solution and said bath interact for said carbonation. This process is such that it consists in spraying said solution merely by the difference in hydrostatic pressure between the inlet to said or each nozzle ( ) and the interior of said chamber ( ).