Title:
RUST-PROOFING TREATMENT METHOD, AND RUST-PROOFING-TREATED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2021/060294
Kind Code:
A1
Abstract:
The present invention relates to: a rust-proofing treatment method comprising the step of treating an object that comprises a metal or an alloy and is heated to a temperature higher than 180℃ or an object that has, formed on the surface thereof, a film or layer comprising a metal or an alloy and is heated to a temperature higher than 180℃ with an aqueous solution containing an inorganic acid or an inorganic salt, or comprising the step of treating an object comprising a metal or an alloy or an object having, formed on the surface thereof, a film or layer comprising a metal or an alloy with an aqueous solution containing at least one component selected from silicic acid, a silicic acid salt, phosphoric acid, a phosphoric acid salt, a monohydrogen phosphate salt, a dihydrogen phosphate salt and a zirconium salt; and an article characterized by being rust-proofing-treated by the rust-proofing treatment method.
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Inventors:
KOMATSUZAKI TAKUMI (JP)
TAMAKI SATORU (JP)
TAMAKI SATORU (JP)
Application Number:
PCT/JP2020/035851
Publication Date:
April 01, 2021
Filing Date:
September 23, 2020
Export Citation:
Assignee:
NOF METAL COATINGS ASIA PACIFIC CO LTD (JP)
International Classes:
C23C22/77; B05D3/02; B05D5/00; B05D7/14; B05D7/24
Domestic Patent References:
| WO2013042239A1 | 2013-03-28 |
Foreign References:
| JPS54148142A | 1979-11-20 | |||
| JP2018070999A | 2018-05-10 | |||
| JP2013510932A | 2013-03-28 | |||
| JP2012505963A | 2012-03-08 | |||
| JP2005200678A | 2005-07-28 | |||
| JP2006052361A | 2006-02-23 |
Attorney, Agent or Firm:
SAKAMOTO & PARTNERS (JP)
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