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. 08, 2026
Filed:
Sep. 03, 2020
Daicel Corporation, Osaka, JP;
Yasuteru Kajikawa, Tokyo, JP;
Tetsuro Nakanishi, Tokyo, JP;
Yuuichirou Hirai, Tokyo, JP;
Keisuke Ono, Tokyo, JP;
Midori Umehara, Tokyo, JP;
Yuki Teshima, Tokyo, JP;
DAICEL CORPORATION, Osaka, JP;
Abstract
Provided is a high-purity 1,3-butylene glycol product that is colorless and odorless, and furthermore, unlikely to be colored over time. A 1,3-butylene glycol product, having, according to a gas chromatographic analysis performed under predetermined conditions, a peak area ratio of 1000 ppm or lower appearing in a relative retention time ranging from 2.3 to 2.4, provided that the relative retention time for a peak of 1,3-butylene glycol is 1.0.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile