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:
Sep. 15, 2009
Filed:
Jul. 29, 2003
Tjay Tjien Tjioe, Sittard, NL;
Eric Grolman, Maastricht, NL;
Reinier Franciscus Petrus Grimbergen, Roermond, NL;
Michal Kuczynski, Sittard, NL;
Tjay Tjien Tjioe, Sittard, NL;
Eric Grolman, Maastricht, NL;
Reinier Franciscus Petrus Grimbergen, Roermond, NL;
Michal Kuczynski, Sittard, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
Process for the preparation of melamine, comprising a first mixing step in which at least two melamine-containing flows, originating from at least two different processes for the preparation of melamine, are brought into contact with each other, with a mixture being formed. In one embodiment, at least one melamine-containing flow contains melamine from a low-pressure gas-phase process for the preparation of melamine and at least one melamine-containing flow contains melamine from a high-pressure liquid-phase process for the preparation of melamine.