METHOD FOR MANUFACTURING EDIBLE OIL DETERIORATION PREVENTING MEMBER, AND EDIBLE OIL DETERIORATION PREVENTING MEMBER

Title:

METHOD FOR MANUFACTURING EDIBLE OIL DETERIORATION PREVENTING MEMBER, AND EDIBLE OIL DETERIORATION PREVENTING MEMBER

Document Type and Number:

WIPO Patent Application WO/2015/020238

Kind Code:

A2

Abstract:

The purpose of the present invention is to manufacture, in a simple, economical and safe process, an effective member for preventing edible oil deterioration.　This method for manufacturing an edible oil deterioration preventing member is characterized by comprising: (1) a step for forming titanium nitride upon the surface of a titanium metal material or a titanium alloy material, using one treatment method selected from the group consisting of heat-treating under an ammonia gas atmosphere and heat-treating under a nitrogen gas atmosphere, at a heating temperature of 750 degrees Celsius or more; (2) a step for forming a titanium oxide film by subjecting the titanium metal material or the titanium alloy material with titanium nitride formed upon the surface thereof obtained at step (1) to anodization by applying a voltage of 10 V or more thereto in an electrolyte solution that does not have an etching effect on titanium; and (3) heat-treating the titanium metal material or the titanium alloy material with a titanium oxide film formed upon the surface thereof obtained at step (2) at a temperature of 400 degrees Celsius or more under an atmosphere selected from an air atmosphere, an oxygen gas atmosphere, and a mixed atmosphere of oxygen gas and nitrogen gas.

Inventors:

TAKAYASU TERUKI (JP)
MORI SHINGO (JP)

Application Number:

PCT/JP2014/080413

Publication Date:

February 12, 2015

Filing Date:

November 18, 2014

Export Citation:

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Assignee:

SHOWA CO LTD (JP)
MORI KOSAN CO LTD (JP)

International Classes:

C23F17/00

Foreign References:

JP2011200406A

2011-10-13

Other References: