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. 01, 2025
Filed:
Dec. 20, 2019
The Nisshin Oillio Group, Ltd., Tokyo, JP;
Hiroyuki Kozui, Yokohama, JP;
The Nisshin OilliO Group, Ltd., Tokyo, JP;
Abstract
A method of producing refined oils and/or fats whereby the content of, e.g., glycidol, can be reduced and reductions in the content of tocopherols can be inhibited, and a method for producing low-impurity tocopherols. The method includes a first distillation step of subjecting raw material oils and/or fats to thin film distillation under a first condition; a second distillation step of subjecting a first distillate fraction obtained after the first distillation step to thin film distillation under a second condition; a third distillation step of subjecting a second residual fraction obtained after the second distillation step to thin film distillation under a third condition; and a mixing step of obtaining a mixed oil by mixing a first residual fraction obtained after the first distillation step, with a third distillate fraction obtained after the third distillation step. The first, second, and third conditions include specified temperature conditions and pressure conditions.