GB1519370A - Thermal barrier coatin for nickel and cobalt base super alloys - Google Patents
Thermal barrier coatin for nickel and cobalt base super alloysInfo
- Publication number
- GB1519370A GB1519370A GB35521/76A GB3552176A GB1519370A GB 1519370 A GB1519370 A GB 1519370A GB 35521/76 A GB35521/76 A GB 35521/76A GB 3552176 A GB3552176 A GB 3552176A GB 1519370 A GB1519370 A GB 1519370A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nickel
- coatin
- bond coat
- thermal barrier
- cobalt base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract 7
- 229910052759 nickel Inorganic materials 0.000 title abstract 4
- 229910000601 superalloy Inorganic materials 0.000 title abstract 2
- 230000004888 barrier function Effects 0.000 title 1
- 229910017052 cobalt Inorganic materials 0.000 title 1
- 239000010941 cobalt Substances 0.000 title 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910000531 Co alloy Inorganic materials 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 238000007750 plasma spraying Methods 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/005—Selecting particular materials
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
- C23C28/3215—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer at least one MCrAlX layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/341—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one carbide layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
- C23C28/3455—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for blades
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Ceramic Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Laminated Bodies (AREA)
- Materials For Medical Uses (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61243975A | 1975-09-11 | 1975-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1519370A true GB1519370A (en) | 1978-07-26 |
Family
ID=24453160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35521/76A Expired GB1519370A (en) | 1975-09-11 | 1976-08-26 | Thermal barrier coatin for nickel and cobalt base super alloys |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JPS5917189B2 (da) |
| AU (1) | AU504802B2 (da) |
| BE (1) | BE845193A (da) |
| BR (1) | BR7605892A (da) |
| CA (1) | CA1068178A (da) |
| CH (1) | CH609731A5 (da) |
| DE (1) | DE2640829C2 (da) |
| DK (1) | DK151901C (da) |
| FR (1) | FR2323656A1 (da) |
| GB (1) | GB1519370A (da) |
| IL (1) | IL50375A (da) |
| IN (1) | IN145818B (da) |
| IT (1) | IT1064979B (da) |
| NO (1) | NO148114C (da) |
| PL (1) | PL120368B1 (da) |
| SE (1) | SE440238B (da) |
| SU (1) | SU1505441A3 (da) |
| YU (1) | YU42647B (da) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2286600A (en) * | 1994-02-16 | 1995-08-23 | United Technologies Corp | Coating scheme to contain molten material during gas turbine engine fires |
| US6025078A (en) * | 1996-08-16 | 2000-02-15 | Rolls-Royce Plc | Metallic article having a thermal barrier coating and a method of application thereof |
| EP1354978A1 (en) * | 2000-11-27 | 2003-10-22 | Ikebukuro Horo Kogyo Co. Ltd. | Glass lining application method |
| US9180487B2 (en) | 2009-09-03 | 2015-11-10 | Evonik Degussa Gmbh | Flexible coating composites having primarily mineral composition |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2100621B (en) * | 1981-06-30 | 1984-07-18 | United Technologies Corp | Strain tolerant thermal barrier coatings |
| GB2101910B (en) * | 1981-07-14 | 1984-09-19 | Westinghouse Electric Corp | Improvements in or relating to thermally protected alloys |
| JPS60149828A (ja) * | 1984-01-13 | 1985-08-07 | Hitachi Ltd | 燃焼器 |
| DE3446479A1 (de) * | 1984-12-20 | 1986-07-03 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | Metallischer verbindungswerkstoff |
| IL84067A (en) * | 1986-10-30 | 1992-03-29 | United Technologies Corp | Thermal barrier coating system |
| US5098797B1 (en) * | 1990-04-30 | 1997-07-01 | Gen Electric | Steel articles having protective duplex coatings and method of production |
| US5105625A (en) * | 1990-11-23 | 1992-04-21 | General Motors Corporation | Mounting for a ceramic scroll in a gas turbine machine |
| US5180285A (en) * | 1991-01-07 | 1993-01-19 | Westinghouse Electric Corp. | Corrosion resistant magnesium titanate coatings for gas turbines |
| CA2091472A1 (en) * | 1992-04-17 | 1993-10-18 | William R. Young | Whisker-anchored thermal barrier coating |
| JP2003147464A (ja) | 2001-11-02 | 2003-05-21 | Tocalo Co Ltd | 高温強度部材 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE206570C1 (da) * | 1956-03-09 | 1966-08-02 | ||
| US3091548A (en) * | 1959-12-15 | 1963-05-28 | Union Carbide Corp | High temperature coatings |
| GB1214743A (en) * | 1968-01-24 | 1970-12-02 | Imp Metal Ind Kynoch Ltd | Improvements in or relating to oxidation-resistant coatings |
| US3754903A (en) * | 1970-09-15 | 1973-08-28 | United Aircraft Corp | High temperature oxidation resistant coating alloy |
| US3676085A (en) * | 1971-02-18 | 1972-07-11 | United Aircraft Corp | Cobalt base coating for the superalloys |
| US3758233A (en) * | 1972-01-17 | 1973-09-11 | Gen Motors Corp | Vibration damping coatings |
| US3837894A (en) * | 1972-05-22 | 1974-09-24 | Union Carbide Corp | Process for producing a corrosion resistant duplex coating |
-
1976
- 1976-06-22 CA CA255,381A patent/CA1068178A/en not_active Expired
- 1976-08-13 BE BE169817A patent/BE845193A/xx not_active IP Right Cessation
- 1976-08-16 CH CH1038776A patent/CH609731A5/xx not_active IP Right Cessation
- 1976-08-16 IN IN1488/CAL/76A patent/IN145818B/en unknown
- 1976-08-17 DK DK370176A patent/DK151901C/da not_active IP Right Cessation
- 1976-08-17 FR FR7624940A patent/FR2323656A1/fr active Granted
- 1976-08-18 AU AU16932/76A patent/AU504802B2/en not_active Expired
- 1976-08-23 SE SE7609304A patent/SE440238B/xx unknown
- 1976-08-26 GB GB35521/76A patent/GB1519370A/en not_active Expired
- 1976-08-30 IL IL50375A patent/IL50375A/xx unknown
- 1976-09-06 BR BR7605892A patent/BR7605892A/pt unknown
- 1976-09-06 NO NO763047A patent/NO148114C/no unknown
- 1976-09-06 IT IT26891/76A patent/IT1064979B/it active
- 1976-09-08 JP JP51107675A patent/JPS5917189B2/ja not_active Expired
- 1976-09-08 YU YU2200/76A patent/YU42647B/xx unknown
- 1976-09-09 PL PL1976192290A patent/PL120368B1/pl unknown
- 1976-09-09 SU SU762395497A patent/SU1505441A3/ru active
- 1976-09-10 DE DE2640829A patent/DE2640829C2/de not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2286600A (en) * | 1994-02-16 | 1995-08-23 | United Technologies Corp | Coating scheme to contain molten material during gas turbine engine fires |
| GB2286600B (en) * | 1994-02-16 | 1997-10-08 | United Technologies Corp | Coating scheme to contain molten material during gas turbine engine fires |
| US6025078A (en) * | 1996-08-16 | 2000-02-15 | Rolls-Royce Plc | Metallic article having a thermal barrier coating and a method of application thereof |
| EP1354978A1 (en) * | 2000-11-27 | 2003-10-22 | Ikebukuro Horo Kogyo Co. Ltd. | Glass lining application method |
| US6815013B2 (en) | 2000-11-27 | 2004-11-09 | Ikebukuro Horo Kogyo Co., Ltd. | Glass lining application method |
| US9180487B2 (en) | 2009-09-03 | 2015-11-10 | Evonik Degussa Gmbh | Flexible coating composites having primarily mineral composition |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1064979B (it) | 1985-02-25 |
| CH609731A5 (en) | 1979-03-15 |
| FR2323656B1 (da) | 1983-01-14 |
| NO763047L (da) | 1977-03-14 |
| SU1505441A3 (ru) | 1989-08-30 |
| BE845193A (fr) | 1976-12-01 |
| DE2640829C2 (de) | 1986-07-31 |
| YU220076A (en) | 1982-08-31 |
| JPS5233842A (en) | 1977-03-15 |
| CA1068178A (en) | 1979-12-18 |
| DK151901B (da) | 1988-01-11 |
| IN145818B (da) | 1978-12-30 |
| YU42647B (en) | 1988-10-31 |
| DE2640829A1 (de) | 1977-03-17 |
| FR2323656A1 (fr) | 1977-04-08 |
| NO148114B (no) | 1983-05-02 |
| DK151901C (da) | 1988-06-06 |
| IL50375A (en) | 1979-05-31 |
| AU504802B2 (en) | 1979-11-01 |
| NO148114C (no) | 1983-08-10 |
| JPS5917189B2 (ja) | 1984-04-19 |
| DK370176A (da) | 1977-03-12 |
| IL50375A0 (en) | 1976-10-31 |
| SE440238B (sv) | 1985-07-22 |
| PL120368B1 (en) | 1982-02-27 |
| SE7609304L (sv) | 1977-03-12 |
| AU1693276A (en) | 1978-02-23 |
| BR7605892A (pt) | 1977-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19960825 |