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. 14, 2014
Filed:
Jul. 12, 2011
Applicant:
Sébastien Lomel, Saint-Just-Chaleyssin, FR;
Inventor:
Sébastien Lomel, Saint-Just-Chaleyssin, FR;
Assignee:
Rhodia Operations, Aubervilliers, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 69/28 (2006.01); C08G 69/26 (2006.01); C08G 69/04 (2006.01);
U.S. Cl.
CPC ...
C08G 69/28 (2013.01); C08G 69/04 (2013.01);
Abstract
A process for the manufacture of polyamide is described. Also described, is a process comprising a stage of initial polymerization under pressure starting from monomers and a stage of finishing in the liquid phase at atmospheric pressure. The finishing stage can employ an injection of inert gas along a direction essentially parallel to that of the flow of the liquid reaction stream.