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:
Feb. 03, 2009
Filed:
Sep. 10, 2004
Applicant:
Junpei Tsuji, Chiba, JP;
Inventor:
Junpei Tsuji, Chiba, JP;
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 301/02 (2006.01); C07D 301/19 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing α-methylstyrene from cumyl alcohol via dehydration in the presence of activated alumina, wherein a concentration of propylene oxide contained in a raw material containing cumyl alcohol is 10 to 1000 ppm by weight.