Title:
METHOD FOR ELECTROCHEMICAL SURFACE TREATMENT OF BIOMEDICAL PRODUCTS MADE OF TITANIUM OR TI-BASED ALLOYS
Document Type and Number:
WIPO Patent Application WO/2024/049360
Kind Code:
A3
Abstract:
The invention relates to the method for electrochemical surface treatment of biomedical product made of titanium or Ti-based alloys characterized in that it comprises the steps: Immersion of the degreased and cleaned biomedical product into the electrolyte consisting of Reline or Glyceline; galvanostatic etching treatment of the biomedical product at the current density 1 to 20 mA cm-2 for 5 to 60 min. at a temperature 15 to 40 °C or potentiostatic etching treatment of the biomedical product at the potential 1 to 5 V for 5 to 60 min. at a temperature 15 to 40 °C; or galvanostatic electropolishing of the biomedical product at the current density 25 to 100 mA cm-2 for 5 to 60 min. at a temperature 15 to 40 °C or potentiostatic electropolishing of the biomedical product at the potential 6 to 30 V for 5 to 60 min. at a temperature 15 to 40 °C; and subsequent cleaning of the biomedical product from electrolytes residuals.
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Inventors:
KITYK ANNA (SK)
HNATKO MIROSLAV (SK)
HNATKO MIROSLAV (SK)
Application Number:
PCT/SK2023/050024
Publication Date:
April 11, 2024
Filing Date:
August 24, 2023
Export Citation:
Assignee:
CENTRUM PRE VYUZITIE POKROCILYCH MAT SLOVENSKEJ AKADEMIE VIED VEREJNA VYSKUMNA INSTITUCIA (SK)
USTAV ANORGANICKEJ CHEMIE SLOVENSKEJ AKADEMIE VIED VEREJNA VYSKUMNA INST (SK)
USTAV ANORGANICKEJ CHEMIE SLOVENSKEJ AKADEMIE VIED VEREJNA VYSKUMNA INST (SK)
International Classes:
C25F3/08; C25F3/26
Domestic Patent References:
| WO2021115698A1 | 2021-06-17 |
Foreign References:
| US20040097755A1 | 2004-05-20 |
Other References:
LEBEDEVA OLGA ET AL: "Advantages of Electrochemical Polishing of Metals and Alloys in Ionic Liquids", METALS, vol. 11, no. 6, 14 June 2021 (2021-06-14), pages 959, XP093028452, DOI: 10.3390/met11060959
KARIM WRYA O ED - ZHENG BO: "Electropolishing of pure metallic titanium in a deep eutectic solvent", ARABIAN JOURNAL OF CHEMISTRY, ELSEVIER, AMSTERDAM, NL, vol. 14, no. 1, 16 November 2020 (2020-11-16), XP086418524, ISSN: 1878-5352, [retrieved on 20201116], DOI: 10.1016/J.ARABJC.2020.11.012
SMITH E L: "Deep eutectic solvents (DESs) and the metal finishing industry: where are they now?", TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING, MANEY PUBLISHING, BIRMINGHAM, GB, vol. 91, no. 5, 1 September 2013 (2013-09-01), pages 241 - 248, XP001591312, ISSN: 0020-2967, DOI: 10.1179/0020296713Z.000000000120
KARIM WRYA O ED - ZHENG BO: "Electropolishing of pure metallic titanium in a deep eutectic solvent", ARABIAN JOURNAL OF CHEMISTRY, ELSEVIER, AMSTERDAM, NL, vol. 14, no. 1, 16 November 2020 (2020-11-16), XP086418524, ISSN: 1878-5352, [retrieved on 20201116], DOI: 10.1016/J.ARABJC.2020.11.012
SMITH E L: "Deep eutectic solvents (DESs) and the metal finishing industry: where are they now?", TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING, MANEY PUBLISHING, BIRMINGHAM, GB, vol. 91, no. 5, 1 September 2013 (2013-09-01), pages 241 - 248, XP001591312, ISSN: 0020-2967, DOI: 10.1179/0020296713Z.000000000120
Attorney, Agent or Firm:
CENTRUM PRE VYUZITIE POKROCILYCH MATERIALOV SLOVENSKEJ AKADEMIE VIED, VEREJNA VYSKUMNA INSTITUCIA (SK)
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