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Patent Searching and Data


Title:
HEXAVALENT CHROMIUM TREATMENT AGENT, AND LEATHER OR LEATHER PRODUCT USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/131139
Kind Code:
A1
Abstract:
[Problem] To provide a hexavalent chromium treatment agent which can permeate into leather and which can reduce hexavalent chromium to trivalent chromium not only near the surface of leather, but also inside leather. [Solution] This hexavalent chromium treatment agent contains a hexavalent chromium-reducing compound capable of reducing hexavalent chromium to trivalent chromium, a non-ionic surfactant and an aqueous medium. It is preferable for the hexavalent chromium-reducing compound to contain an organic compound (A) which has a hydroxyphenyl group and a specific structure that reduces hexavalent chromium to trivalent chromium and which does not have an aldehyde group or a carboxyl group.

Inventors:
AKAO Yuji (1-12, Tanashicho 6-chome, Nishitokyo-sh, Tokyo 11, 〒1888511, JP)
Application Number:
JP2017/002890
Publication Date:
August 03, 2017
Filing Date:
January 27, 2017
Export Citation:
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Assignee:
CITIZEN WATCH CO., LTD. (1-12, Tanashicho 6-chome Nishitokyo-sh, Tokyo 11, 〒1888511, JP)
International Classes:
C09K3/00; A62D3/37; C14C3/06; A62D101/43
Foreign References:
JP2008231388A2008-10-02
JP2010100750A2010-05-06
JPH0827499A1996-01-30
JP2002536502A2002-10-29
JP2003010676A2003-01-14
JPH1085716A1998-04-07
JP2010082539A2010-04-15
JP2008231388A2008-10-02
JP2015071509W2015-07-29
JP2008272552A2008-11-13
Other References:
"Knowledge of Leather", JAPANESE ASSOCIATION OF LEATHER TECHNOLOGY, 14 December 2015 (2015-12-14), Retrieved from the Internet
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (Gotanda Yamazaki Bldg. 6F, 13-6 Nishigotanda 7-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
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