MD3008G2 - Process for repatination of old restored bronze and brass articles - Google Patents
Process for repatination of old restored bronze and brass articles Download PDFInfo
- Publication number
- MD3008G2 MD3008G2 MDA20050183A MD20050183A MD3008G2 MD 3008 G2 MD3008 G2 MD 3008G2 MD A20050183 A MDA20050183 A MD A20050183A MD 20050183 A MD20050183 A MD 20050183A MD 3008 G2 MD3008 G2 MD 3008G2
- Authority
- MD
- Moldova
- Prior art keywords
- alcohol
- repatination
- restored
- sb2s5
- bronze
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 229910001369 Brass Inorganic materials 0.000 title abstract 2
- 229910000906 Bronze Inorganic materials 0.000 title abstract 2
- 239000010951 brass Substances 0.000 title abstract 2
- 239000010974 bronze Substances 0.000 title abstract 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 title abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 3
- 230000001476 alcoholic effect Effects 0.000 abstract 3
- 239000006185 dispersion Substances 0.000 abstract 2
- 235000011007 phosphoric acid Nutrition 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 abstract 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 abstract 2
- 241001311547 Patina Species 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 241000241413 Propolis Species 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000012188 paraffin wax Substances 0.000 abstract 1
- 238000002161 passivation Methods 0.000 abstract 1
- 229940069949 propolis Drugs 0.000 abstract 1
- 229920002050 silicone resin Polymers 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000001993 wax Substances 0.000 abstract 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention relates to the conservation of the cultural patrimony, namely to a process for repatination of restored zones by superficial passivation of old bronze and brass articles, discovered during the archaeological excavations or those from museum collections that have undergone interventions with the view of stopping the destruction by corrosion.Summary of the invention consists in that the process includes application of an alcoholic dispersion, containing stibium pentasulphide, as passivating agent, and two additives, consisting of phosphor pentoxide or orthophosphoric acid(40%) and thiourea, in the mass ratio, alcohol:Sb2S5:P4O10:SC(NH2)2=40:8:1:1 or alcohol:Sb2S5:H3PO4:SC(NH2)2=39:8:2:1, correspondingly. The alcoholic dispersion is obtained by fine grinding of the solid components, first separately, then all together, at the gradual addition of the metered quantity of alcohol and is applied onto the clean surface at the room temperature during 5…10 minutes, then the surface is repeatedly treated in 2…3 hours, with subsequent washing with alcohol and drying at the maximum temperature of 35°C and relative humidity of at least 30%. Afterwards, it is additionally applied a protective film, containing alcoholic solution of propolis, melt of wax and paraffin or silicone resin.The result consists in obtaining a protective patina, uniform in thickness and colour, climatically resistant, with good adhesive properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20050183A MD3008G2 (en) | 2005-06-27 | 2005-06-27 | Process for repatination of old restored bronze and brass articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20050183A MD3008G2 (en) | 2005-06-27 | 2005-06-27 | Process for repatination of old restored bronze and brass articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD3008F1 MD3008F1 (en) | 2006-03-31 |
| MD3008G2 true MD3008G2 (en) | 2006-10-31 |
Family
ID=36120080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDA20050183A MD3008G2 (en) | 2005-06-27 | 2005-06-27 | Process for repatination of old restored bronze and brass articles |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD3008G2 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3957529A (en) * | 1973-01-18 | 1976-05-18 | The Dow Chemical Company | Method for cleaning and passivating a metal surface |
| EP0149720A2 (en) * | 1984-01-07 | 1985-07-31 | Gerhard Collardin GmbH | Process for after passivating phosphated metal surfaces using titanium and/or manganese and/or cobalt and/or nickel and/or copper cations containing solutions |
| US4919787A (en) * | 1987-12-28 | 1990-04-24 | Mobil Oil Corporation | Metal passivating agents |
| US5391240A (en) * | 1990-10-08 | 1995-02-21 | Henkel Kommanditgesellschaft Auf Aktien | Process for the passivating post-treatment of phosphatized metal surfaces |
| CZ286708B6 (en) * | 1993-03-15 | 2000-06-14 | Ppg Industries Inc | Process for treating metal surfaces and aqueous acid solution for non-chrome passivating metal surfaces |
| JP2003113485A (en) * | 2001-10-05 | 2003-04-18 | Mitsubishi Heavy Ind Ltd | Method and apparatus for passivating metal |
-
2005
- 2005-06-27 MD MDA20050183A patent/MD3008G2/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3957529A (en) * | 1973-01-18 | 1976-05-18 | The Dow Chemical Company | Method for cleaning and passivating a metal surface |
| EP0149720A2 (en) * | 1984-01-07 | 1985-07-31 | Gerhard Collardin GmbH | Process for after passivating phosphated metal surfaces using titanium and/or manganese and/or cobalt and/or nickel and/or copper cations containing solutions |
| US4919787A (en) * | 1987-12-28 | 1990-04-24 | Mobil Oil Corporation | Metal passivating agents |
| US5391240A (en) * | 1990-10-08 | 1995-02-21 | Henkel Kommanditgesellschaft Auf Aktien | Process for the passivating post-treatment of phosphatized metal surfaces |
| CZ286708B6 (en) * | 1993-03-15 | 2000-06-14 | Ppg Industries Inc | Process for treating metal surfaces and aqueous acid solution for non-chrome passivating metal surfaces |
| JP2003113485A (en) * | 2001-10-05 | 2003-04-18 | Mitsubishi Heavy Ind Ltd | Method and apparatus for passivating metal |
Non-Patent Citations (9)
| Title |
|---|
| Marinescu A., Andonianţ Gh., Bay E. Tehnologii electrochimice şi chimice de protecţie a materialelor metalice. Ed. Tehnică, Bucureşti, 1984, p. 360, 384 * |
| Oniciu I., Grunwald E. Galvanotehnica. Ed. Ştiinţifică şi Enciclopedică, Bucureşti, 1980, p. 366 * |
| Organ R. M. A new treatment for bronze disease. Museums Journal, 61, 1961, p. 54 * |
| pieces. Buletinul Institutului Politehnic din Iasi, Tomul XLXI (LV), Fasc. 3-4, Secţia Ştiinţa şi Ingineria Materialelor, 2005, p. 197 * |
| Sandu I., Dima A., Sandu I.G. Conservarea şi restaurarea obiectelor metalice. Ed. Corson, Iaşi, 2002, p. 624 * |
| Sandu I.G., Dima A., Sandu I., Suliţanu N., Stoleriu S., Diaconescu F. The study of the artificially patina in the restored areas of ancient bronze * |
| Sandu I.G., Dima A., Sandu I., Suliţanu N., Stoleriu S., Diaconescu F. The study of the artificially patina in the restored areas of ancient bronze pieces. BULETINUL INSTITUTULUI POLITEHNIC din Iasi, Tomul XLXI (LV), Fasc. 3-4, Secţia Ştiinţa şi Ingineria Materialelor, 2005, p. 197 - 204 * |
| Sharma V.C., Lal U.S., Nair M.V. Zinc dust treatment – an effective method for the control of bronze disease on excavated objects. Studie in Conservation, 40, nr. 2, mai, 1995, p. 110 * |
| Stambolov T. The Corrosion and Conservation of Metallic Antiquities and Work of Art. Ed. Central Research Laboratory, Amsterdam, 1985, p. 54 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MD3008F1 (en) | 2006-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
| MM4A | Patent for invention definitely lapsed due to non-payment of fees |