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:
Apr. 24, 2012
Filed:
Aug. 21, 2008
Masato Yoshioka, Higashiosaka, JP;
Norihisa Taira, Higashiosaka, JP;
Akane Kamiyama, Higashiosaka, JP;
Keiichi Uehara, Higashiosaka, JP;
Naoya Hashimoto, Higashiosaka, JP;
Masato Yoshioka, Higashiosaka, JP;
Norihisa Taira, Higashiosaka, JP;
Akane Kamiyama, Higashiosaka, JP;
Keiichi Uehara, Higashiosaka, JP;
Naoya Hashimoto, Higashiosaka, JP;
Seikwa Kasei Company, Limited, Osaka, JP;
Abstract
Disclosed is an ascorbic acid derivative or a salt thereof wherein at least one of hydrogen atoms in hydroxy groups at the 2-position and the 3-position of ascorbic acid is substituted by R—O—CH—CH(OH)—CH—, R—O—CH—CH(CHOH)—, R—CH(CHOH)—, R—CH(OH)—CH— (wherein R represents an alkyl group, an alkenyl group or a phenyl group), or a hydroxycyclohexyl group. Also disclosed is a method for producing an ascorbic acid derivative or a salt thereof, which is characterized by reacting ascorbic acid with an epoxy compound such as an alkyl glycidyl ether, an epoxy alkane or an alicyclic epoxy.