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:
Sep. 17, 2024
Filed:
May. 18, 2022
Applicant:
KH Neochem Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
KH NEOCHEM CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 31/20 (2006.01); C07C 29/09 (2006.01); C07C 29/74 (2006.01); C07C 29/80 (2006.01); C07C 29/84 (2006.01); C07C 29/86 (2006.01);
U.S. Cl.
CPC ...
C07C 31/207 (2013.01); C07C 29/09 (2013.01); C07C 29/74 (2013.01); C07C 29/80 (2013.01); C07C 29/84 (2013.01); C07C 29/86 (2013.01);
Abstract
A product 1,3-butylene glycol, in which 2,4-dinitrophenylhydrazine derivatives of 2-(hydroxyethyl)-2,6-dimethyl-1,3-dioxane have a weight proportion of 90 ppm or less, as calculated from a sum of absorbance of peaks thereof in an HPLC analysis under specific conditions after specific sample preparation.
Suguri, Akihiro. (2024). Product 1,3-butylene glycol (U.S. Patent No. 12091379). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12091379
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile