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:
May. 17, 2016
Filed:
Jul. 18, 2013
Applicant:
Saudi Basic Industries Corporation, Riyadh, SA;
Inventors:
Syed Azhar Hashmi, Riyadh, SA;
Abdullah Bin-Nafisa, Riyadh, SA;
Assignee:
SAUDI BASIC INDUSTRIES CORPORATION, Riyadh, SA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 273/18 (2006.01); C05C 9/00 (2006.01); C07C 275/14 (2006.01);
U.S. Cl.
CPC ...
C07C 273/1863 (2013.01); C05C 9/00 (2013.01); C07C 275/14 (2013.01); Y10T 428/2982 (2015.01);
Abstract
The invention relates to a process comprising: reacting isobutyraldehyde with an aqueous solution of urea in the presence of a phase transfer catalyst to form isobutylidene diurea. Preferably, the phase transfer catalyst is a quaternary ammonium salt, more preferably benzyltriethylammonium chloride. Even more preferably, the process is performed in one pot.