WO2001048273A1 - Bad zur galvanischen abscheidung von hochglänzenden weissen rhodiumüberzügen und weissmacher hierfür - Google Patents
Bad zur galvanischen abscheidung von hochglänzenden weissen rhodiumüberzügen und weissmacher hierfür Download PDFInfo
- Publication number
- WO2001048273A1 WO2001048273A1 PCT/EP2000/012796 EP0012796W WO0148273A1 WO 2001048273 A1 WO2001048273 A1 WO 2001048273A1 EP 0012796 W EP0012796 W EP 0012796W WO 0148273 A1 WO0148273 A1 WO 0148273A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sulfate
- bath
- rhodium
- alkyl group
- whitening agent
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/236—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages
- B01F23/2361—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages within small containers, e.g. within bottles
- B01F23/23611—Portable appliances comprising a gas cartridge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
- C25D3/52—Electroplating: Baths therefor from solutions of platinum group metals characterised by the organic bath constituents used
Definitions
- the invention relates to a galvanic bath for the deposition of high-gloss white rhodium coatings and a whitening agent therefor.
- Rhodium coatings are e.g. deposited as a contactor on silver and should have a high gloss and as bright a white color as possible, similar to that of silver.
- electrolytes are composed of rhodium sulfate, phosphate or sulfamate, sulfuric acid, phosphoric acid, alkanesulfonic acid or amidosulfuric acid.
- haze-free coatings are deposited from such baths, they usually contain certain organic compounds as gloss additives.
- Typical, very frequently used gloss additives are, as described, for example, in EP 0 056 590, the compounds pyridine-3-sulfonic acid and naphthalene-t ⁇ -sulfonic acid.
- a bath may additionally contain a wetting agent and / or a phosphonic acid.
- a disadvantage of the existing systems is that the very bright, white color of silver is not achieved and that with an increasing layer thickness, more haze deposition occurs.
- R is a straight-chain or branched-chain or cyclic alkyl group with up to 20 C atoms
- the invention thus relates to a bath for the electrodeposition of high-gloss white rhodium layers, containing rhodium in dissolved form, optionally with an organic compound as a gloss additive, characterized in that the bath as a whitening agent comprises at least one compound of the general formula
- R is a straight-chain or branched-chain or cyclic alkyl group with up to 20 C atoms
- the whitening agents according to formula I are selected compounds from the class of the alkyl sulfates or alkyl sulfonates.
- R denotes a straight-chain or branched-chain or cyclic alkyl group with up to 20 C atoms.
- the compounds of the formula I are known per se and are readily available. These compounds are sufficiently water soluble and compatible with the electroplating bath. The compounds have surfactant properties, the corresponding action being reduced by less than 4 for a total number of carbon atoms and generally no longer providing adequate solubility if the total number of carbon atoms is more than 20.
- Preferred gloss additives are compounds of the formula I in which R represents straight-chain or branched-chain or cyclic alkyl groups having 5 to 12 carbon atoms and in particular branched-chain alkyl groups having 6 to 10 carbon atoms.
- branched-chain connections are particularly suitable in processes and systems in which strong foam formation interferes, e.g. in air-moving electrolytes, in drum processing, in systems for high-speed separation (spraying systems) and in systems for selective separation, e.g. Diving cells.
- Typical whiteners according to the invention are:
- the use of the whitener according to the invention in baths for the electrodeposition of rhodium layers is expediently carried out in a concentration range of 0.01 to 10 g / l.
- Bathers according to the invention which contain the whitening agent according to formula I in a concentration of 0.1 to 6 g / l are particularly advantageous.
- the brightness or the degree of whiteness of the deposited coatings is significantly increased in an unexpected manner.
- the maximum layer thickness at which high-gloss deposition is still applied is also significantly increased.
- the galvanic rhodium baths according to the invention typically contain approximately
- the baths are usually operated at current densities of 0.5 - 5 A / dm 2 (rack operation) and temperatures up to 60 ° C.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Pyridine Compounds (AREA)
- Chemically Coating (AREA)
- Physical Vapour Deposition (AREA)
- Paper (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001548777A JP4545367B2 (ja) | 1999-12-23 | 2000-12-15 | 高光沢白色ロジウムコーティングを電気メッキするための槽および電気メッキ槽のための白色化剤 |
EP00990767A EP1244827B1 (de) | 1999-12-23 | 2000-12-15 | Bad zur galvanischen abscheidung von hochglänzenden weissen rhodiumschichten und weissmacher hierfür |
DE50012619T DE50012619D1 (de) | 1999-12-23 | 2000-12-15 | Bad zur galvanischen abscheidung von hochglänzenden weissen rhodiumschichten und weissmacher hierfür |
US10/168,241 US6878411B2 (en) | 1999-12-23 | 2000-12-15 | Bath for the electrochemical deposition of high-gloss white rhodium coatings and whitening agent for the same |
HK03106397.3A HK1054057B (zh) | 1999-12-23 | 2003-09-09 | 用於高光澤白色銠塗層的電解沉積浴 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19962839 | 1999-12-23 | ||
DE19962839.4 | 1999-12-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001048273A1 true WO2001048273A1 (de) | 2001-07-05 |
Family
ID=7934370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/012796 WO2001048273A1 (de) | 1999-12-23 | 2000-12-15 | Bad zur galvanischen abscheidung von hochglänzenden weissen rhodiumüberzügen und weissmacher hierfür |
Country Status (9)
Country | Link |
---|---|
US (1) | US6878411B2 (de) |
EP (1) | EP1244827B1 (de) |
JP (1) | JP4545367B2 (de) |
CN (1) | CN1181226C (de) |
AT (1) | ATE323789T1 (de) |
DE (1) | DE50012619D1 (de) |
HK (1) | HK1054057B (de) |
TW (1) | TW573074B (de) |
WO (1) | WO2001048273A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20032218A1 (it) * | 2003-11-14 | 2005-05-15 | Calegaro Di Luigi Di Francesc O Calegaro S P Flli | Metodo di finitura superficiale dell'argento e di sue leghe |
US20070012575A1 (en) * | 2005-07-12 | 2007-01-18 | Morrissey Ronald J | Bright rhodium electrodeposition |
CN101949043B (zh) * | 2010-09-08 | 2011-11-02 | 深圳大学 | 电镀黑色铑层的配方及其方法 |
US9248416B2 (en) | 2012-09-14 | 2016-02-02 | Marc C. Striebinger | Apparatus for the pressurization and evacuation of a container |
CN107687008A (zh) * | 2017-08-28 | 2018-02-13 | 立美珠宝服务(深圳)有限公司 | 电金水及其制备方法 |
CN109778262A (zh) * | 2017-11-10 | 2019-05-21 | 丹阳市金地生态园林发展有限公司 | 一种含环氧氯丙烷的金属合金增白电镀液 |
CN111850631B (zh) * | 2020-07-30 | 2021-10-08 | 金川集团股份有限公司 | 高光泽装饰性镀铑层电镀液 |
IT202100027197A1 (it) | 2021-10-22 | 2023-04-22 | Berkem Srl | Bagno galvanico per la deposizione elettrochimica di leghe rodio-rutenio avente colore simile al rodio puro ed elevata resistenza meccanica e deposito così ottenuto |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4402802A (en) * | 1981-01-03 | 1983-09-06 | Dequssa Aktiengesellschaft | Electrolytic bath for the deposition of rhodium coatings |
US4486513A (en) * | 1981-03-30 | 1984-12-04 | Nippon Mining Co., Ltd. | Process for producing rhodium-plated article with black color and wear resistance |
JPH1150295A (ja) * | 1997-07-28 | 1999-02-23 | Daiwa Kasei Kenkyusho:Kk | めっき浴 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3780198A (en) * | 1971-06-07 | 1973-12-18 | Crown Cork & Seal Co | System for carbonating beverages |
FR2293968A1 (fr) * | 1974-12-13 | 1976-07-09 | Cem Comp Electro Mec | Procede et dispositif pour realiser des emulsions gaz-liquide |
JPS5224131A (en) * | 1975-08-14 | 1977-02-23 | Dowa Mining Co | Luster* thick rhodium plating method |
DE2644378A1 (de) * | 1976-10-01 | 1978-04-06 | Fuellpack Dipl Brauerei Ing Di | Verfahren zur einleitung von gas, insbesondere kohlendioxidgas, in eine in einer leitung stroemende fluessigkeit, insbesondere ein getraenk, sowie einrichtung zur durchfuehrung des verfahrens |
JPS5757883A (en) * | 1980-09-25 | 1982-04-07 | Nippon Mining Co Ltd | Production of black or blue rhodium coated articles and plating bath for this |
DE3100997C2 (de) * | 1981-01-15 | 1986-08-14 | Degussa Ag, 6000 Frankfurt | Bad zum galvanischen Abscheiden von Rhodiumüberzügen |
JPS63206492A (ja) * | 1987-02-23 | 1988-08-25 | Ishifuku Kinzoku Kogyo Kk | 光沢ロジウムめつき液 |
US5329975A (en) * | 1993-09-22 | 1994-07-19 | Heitel Robert G | Apparatus for pressurizing containers and carbonating liquids |
DE9404731U1 (de) * | 1994-03-21 | 1994-09-01 | Negele, Helfried, 86916 Kaufering | Vorrichtung zur Einspeisung von Kohlendioxid in Leitungswasser |
TR199801497U (xx) * | 1998-08-03 | 2000-03-21 | Çağlar Şeref | Soda makinalarında yenilik. |
-
2000
- 2000-12-15 JP JP2001548777A patent/JP4545367B2/ja not_active Expired - Fee Related
- 2000-12-15 EP EP00990767A patent/EP1244827B1/de not_active Expired - Lifetime
- 2000-12-15 AT AT00990767T patent/ATE323789T1/de active
- 2000-12-15 WO PCT/EP2000/012796 patent/WO2001048273A1/de active IP Right Grant
- 2000-12-15 DE DE50012619T patent/DE50012619D1/de not_active Expired - Lifetime
- 2000-12-15 CN CNB008174490A patent/CN1181226C/zh not_active Expired - Fee Related
- 2000-12-15 US US10/168,241 patent/US6878411B2/en not_active Expired - Fee Related
- 2000-12-21 TW TW89127581A patent/TW573074B/zh not_active IP Right Cessation
-
2003
- 2003-09-09 HK HK03106397.3A patent/HK1054057B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4402802A (en) * | 1981-01-03 | 1983-09-06 | Dequssa Aktiengesellschaft | Electrolytic bath for the deposition of rhodium coatings |
US4486513A (en) * | 1981-03-30 | 1984-12-04 | Nippon Mining Co., Ltd. | Process for producing rhodium-plated article with black color and wear resistance |
JPH1150295A (ja) * | 1997-07-28 | 1999-02-23 | Daiwa Kasei Kenkyusho:Kk | めっき浴 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31) * |
Also Published As
Publication number | Publication date |
---|---|
JP4545367B2 (ja) | 2010-09-15 |
TW573074B (en) | 2004-01-21 |
HK1054057A1 (en) | 2003-11-14 |
US20030111352A1 (en) | 2003-06-19 |
HK1054057B (zh) | 2005-07-29 |
CN1181226C (zh) | 2004-12-22 |
CN1420948A (zh) | 2003-05-28 |
ATE323789T1 (de) | 2006-05-15 |
US6878411B2 (en) | 2005-04-12 |
EP1244827B1 (de) | 2006-04-19 |
JP2003518559A (ja) | 2003-06-10 |
DE50012619D1 (de) | 2006-05-24 |
EP1244827A1 (de) | 2002-10-02 |
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