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:
Apr. 27, 2010
Filed:
Sep. 15, 2004
Applicants:
Koji Shinohara, Ichihara, JP;
Toshio Nakayama, Sodegaura, JP;
Inventors:
Koji Shinohara, Ichihara, JP;
Toshio Nakayama, Sodegaura, JP;
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 301/32 (2006.01); C07D 301/19 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for purifying propylene oxide, which comprises washing propylene oxide containing aldehydes and subsequently contacting an aqueous phase obtained with an extractant.