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:
Jul. 07, 2015
Filed:
Dec. 23, 2011
Applicants:
Hiromitsu Shimizu, Sakai, JP;
Keiichi Tabata, Sakai, JP;
Akihiro Kamon, Sakai, JP;
Inventors:
Assignee:
SAKAI CHEMICAL INDUSTRY CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 23/00 (2006.01); C08G 63/85 (2006.01); B01J 21/06 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); C08G 63/00 (2006.01);
U.S. Cl.
CPC ...
C08G 63/85 (2013.01); B01J 21/063 (2013.01); B01J 21/066 (2013.01); B01J 23/007 (2013.01); B01J 37/0221 (2013.01); B01J 37/0244 (2013.01); B01J 37/035 (2013.01);
Abstract
The invention provides a method for producing a catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol, the method comprising hydrolyzing an organic titanium compound in an organic solvent in which particles of a solid base are dispersed thereby to form a coat layer of titanic acid on the surface of the particles of a solid base.