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:
Aug. 24, 2021
Filed:
Sep. 02, 2020
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/42 (2006.01); C07C 47/20 (2006.01);
U.S. Cl.
CPC ...
C07C 45/42 (2013.01); C07C 47/20 (2013.01);
Abstract
A process for preparing 4-penten-2-ynal of the following formula (2):CH═CHC≡CCHO  (2)the process comprising a step of