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:
Jun. 23, 2009
Filed:
Jan. 20, 2003
Thierry Nuris, St. Bonnet de Mure, FR;
Jean-françois Thierry, Francheville, FR;
Thierry Nuris, St. Bonnet de Mure, FR;
Jean-François Thierry, Francheville, FR;
Rhodia Polyamide Intermediates, Saint-Fons, FR;
Abstract
This invention relates to a coil comprising a first helical tube segment () and a second helical tube segment () extending, parallel to the first helical segment (), between a distributor () and a manifold (), said first and second helical segments () being centred on a common geometrical axis (X), with substantially the same bending radius (R) and nested, such that they form together a globally cylindrical bundle (). The method comprises a step which consists in interleaving the helical tube segments (-) so as to form a globally cylindrical bundle. The invention also concerns a reactor equipped with such a coil which can be used for treating a viscous medium or for carrying out chemical reactions, such as 6-6 polyamide polymerization.