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. 14, 2021
Filed:
Jun. 01, 2016
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Yutaka Suzuki, Kamisu, JP;
Masaki Shimizu, Chiyoda-ku, JP;
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 1/24 (2006.01); C07C 29/44 (2006.01); C07C 29/38 (2006.01); C07C 11/18 (2006.01);
U.S. Cl.
CPC ...
C07C 1/24 (2013.01); C07C 29/38 (2013.01); C07C 29/44 (2013.01); C07C 11/18 (2013.01); C07C 2527/173 (2013.01);
Abstract
A method for producing a conjugated diene, including a step A of allowing an α-olefin and formaldehyde to react with each other to produce a γ,δ-unsaturated alcohol in the presence of an alcohol; and a step B of subjecting the γ,δ-unsaturated alcohol to a dehydration reaction at 135 to 210° C. in the presence of an aqueous solution of an acidic catalyst.