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:
Dec. 15, 2009
Filed:
Jul. 13, 2005
Applicants:
Tadashi Katsura, Toyonaka, JP;
Tadashi Mizuno, Ibaraki, JP;
Nobushige Itaya, Nishinomiya, JP;
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 233/05 (2006.01); C07C 255/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method of crystallization of bicalutamide comprising adding an acetone solution containing bicalutamide to water; crystals of bicalutamide wherein particle size distribution of the crystals is 1 to 10 μm of Dp, 10 to 25 μm of Dpand 25 to 100 μm of Dp, and the crystals are obtainable by the method described above; and crystals of bicalutamide, wherein particle size distribution of the crystals is 1 to 3 μm of Dp, 2 to 5 μm of Dpand 5 to 15 μm of Dp.