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:
Feb. 19, 2013
Filed:
Apr. 02, 2009
Hocine Kabir, Serezin du Rhone, FR;
Johannes Schwarz, Lyon, FR;
Christophe Gourdon, Toulouse, FR;
Sébastien Elgue, Baziege, FR;
Hocine Kabir, Serezin du Rhone, FR;
Johannes Schwarz, Lyon, FR;
Christophe Gourdon, Toulouse, FR;
Sébastien Elgue, Baziege, FR;
Centre National de la Recherche Scientifique (C.N.R.S.), Paris, FR;
Institut National Polytechnique de Toulouse, Toulouse, FR;
Perstorp France, Saint-Priest, FR;
Abstract
A process for oligomerizing isocyanates includes a step of continuous conversion of an isocyanate monomer into polyisocyanate containing carbamate and/or allophanate groups, in the presence of a catalyst, wherein the conversion step is carried out in a reactor having a specific heat exchange coefficient of greater than or equal to approximately 200 kW/m/° C.