Hexavalent chromium treatment agent and leather or leather article produced using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 12, 2020
Grant Date -
Jan 24, 2019
app pub date -
Jan 27, 2017
filing date -
Jan 29, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a hexavalent chromium treatment agent capable of penetrating inside of a leather and capable of reducing not only hexavalent chromium present in the vicinity of the surface of the leather but also hexavalent chromium present inside the leather into trivalent chromium. The hexavalent chromium treatment agent of the present invention comprises a hexavalent chromium-reducing compound capable of reducing hexavalent chromium into trivalent chromium, a nonionic surfactant, and an aqueous solvent. The hexavalent chromium-reducing compound preferably comprises an organic compound (A) that has a specific structure capable of acting to reduce hexavalent chromium into trivalent chromium, that has a hydroxyphenyl group, and that has no aldehyde groups and no carboxyl groups.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- C09K Class
- 3024 Applications Filed
- 2020 Patents Issued To-Date
- 66.80 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C09K Class
- 0 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 12, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 12, 2031 |
