NO840465L - Fremgangsmaate ved fremstilling av katoder - Google Patents
Fremgangsmaate ved fremstilling av katoderInfo
- Publication number
- NO840465L NO840465L NO840465A NO840465A NO840465L NO 840465 L NO840465 L NO 840465L NO 840465 A NO840465 A NO 840465A NO 840465 A NO840465 A NO 840465A NO 840465 L NO840465 L NO 840465L
- Authority
- NO
- Norway
- Prior art keywords
- stated
- starting materials
- carbon
- stoichiometric ratio
- titanium
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 36
- 229910052799 carbon Inorganic materials 0.000 claims description 30
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 claims description 23
- 229910033181 TiB2 Inorganic materials 0.000 claims description 23
- 230000005496 eutectics Effects 0.000 claims description 19
- 239000007858 starting material Substances 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 13
- 238000005868 electrolysis reaction Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- QDMRQDKMCNPQQH-UHFFFAOYSA-N boranylidynetitanium Chemical compound [B].[Ti] QDMRQDKMCNPQQH-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 238000010583 slow cooling Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 229910052810 boron oxide Inorganic materials 0.000 description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/5805—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
- C04B35/58064—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
- C04B35/58071—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on titanium borides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Metals (AREA)
- Ceramic Products (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH740/83A CH654031A5 (de) | 1983-02-10 | 1983-02-10 | Verfahren zur herstellung von festkoerperkathoden. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO840465L true NO840465L (no) | 1984-08-13 |
Family
ID=4194101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO840465A NO840465L (no) | 1983-02-10 | 1984-02-08 | Fremgangsmaate ved fremstilling av katoder |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US4492670A (fi) |
| JP (1) | JPS59162289A (fi) |
| AU (1) | AU2357384A (fi) |
| CH (1) | CH654031A5 (fi) |
| DE (1) | DE3400932C2 (fi) |
| FR (1) | FR2540890A1 (fi) |
| IS (1) | IS2873A7 (fi) |
| IT (1) | IT1175929B (fi) |
| NO (1) | NO840465L (fi) |
Families Citing this family (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610726A (en) * | 1984-06-29 | 1986-09-09 | Eltech Systems Corporation | Dense cermets containing fine grained ceramics and their manufacture |
| BR8504577A (pt) * | 1984-09-24 | 1986-07-15 | Cabot Corp | Processo para producao de perfis de diboreto de titanio;artigo de diboreto de titanio e processo para fabricacao de artigo refratario perfilado |
| US4673550A (en) * | 1984-10-23 | 1987-06-16 | Serge Dallaire | TiB2 -based materials and process of producing the same |
| US4961902A (en) * | 1986-02-03 | 1990-10-09 | Eltech Systems Corporation | Method of manufacturing a ceramic/metal or ceramic/ceramic composite article |
| US5017217A (en) * | 1986-02-03 | 1991-05-21 | Eltech Systems Corporation | Ceramic/metal or ceramic/ceramic composite article |
| US4777014A (en) * | 1986-03-07 | 1988-10-11 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products made thereby |
| US4755221A (en) * | 1986-03-24 | 1988-07-05 | Gte Products Corporation | Aluminum based composite powders and process for producing same |
| US5180697A (en) * | 1987-07-15 | 1993-01-19 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products produced thereby |
| US5017334A (en) * | 1987-07-15 | 1991-05-21 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products produced thereby |
| US4885130A (en) * | 1987-07-15 | 1989-12-05 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products produced thereby |
| US5296417A (en) * | 1987-07-15 | 1994-03-22 | Lanxide Technology Company, Lp | Self-supporting bodies |
| US5081077A (en) * | 1987-10-29 | 1992-01-14 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Process for producing sintered body of metal boride and raw material composition therefor |
| US4915736A (en) * | 1987-12-23 | 1990-04-10 | Lanxide Technology Company, Lp | Method of modifying ceramic composite bodies by carburization process and articles produced thereby |
| US5045269A (en) * | 1988-11-17 | 1991-09-03 | Union Carbide Coatings Service Technology Corporation | Method for sintered shapes with controlled grain size |
| US5238883A (en) * | 1989-01-13 | 1993-08-24 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products produced thereby |
| US5010044A (en) * | 1989-01-13 | 1991-04-23 | Lanxide Technology Company, Lp. | Process for preparing self-supporting bodies and products produced thereby |
| US5372178A (en) * | 1989-01-13 | 1994-12-13 | Lanxide Technology Company, Lp | Method of producing ceramic composite bodies |
| US5149678A (en) * | 1989-01-13 | 1992-09-22 | Lanxide Technology Company, Lp | Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby |
| US4904446A (en) * | 1989-01-13 | 1990-02-27 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products made thereby |
| US5187128A (en) * | 1989-01-13 | 1993-02-16 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies |
| US4885131A (en) * | 1989-01-13 | 1989-12-05 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products produced thereby |
| IL92396A0 (en) * | 1989-01-13 | 1990-07-26 | Lanxide Technology Co Ltd | Method of producing ceramic composite bodies |
| US5250324A (en) * | 1990-06-25 | 1993-10-05 | Lanxide Technology Company, L.P. | Method for forming a surface coating using powdered solid oxidants and parent metals |
| US5112654A (en) * | 1990-06-25 | 1992-05-12 | Lanxide Technology Company, Lp | Method for forming a surface coating |
| US5232040A (en) * | 1990-07-12 | 1993-08-03 | Lanxide Technology Company, Lp | Method for reducing metal content of self-supporting composite bodies and articles formed thereby |
| US5120684A (en) * | 1990-07-12 | 1992-06-09 | Lanxide Technology Company, Lp | Pressure assisted technique for forming self-supporting composite bodies and articles formed thereby |
| EP0538417B1 (en) * | 1990-07-12 | 1995-01-25 | Lanxide Technology Company, Lp | Joining methods for ceramic composite bodies |
| US5264401A (en) * | 1990-07-12 | 1993-11-23 | Lanxide Technology Company, Lp | Pressure assisted technique for forming self-supporting composite bodies and articles formed thereby |
| JPH06502379A (ja) * | 1990-07-12 | 1994-03-17 | ランキサイド テクノロジー カンパニー，リミティド パートナーシップ | セラミックス複合体の接合方法 |
| US5203488A (en) * | 1990-07-12 | 1993-04-20 | Lanxide Technology Company, Lp | Method for joining ceramic composite bodies and articles formed thereby |
| US5166105A (en) * | 1990-12-10 | 1992-11-24 | Lanxide Technology Company, Lp | Process for preparing self-supporting ceramic composite bodies and bodies produced thereby |
| US5439744A (en) * | 1991-06-25 | 1995-08-08 | Lanxide Technology Company, Lp | Composite bodies and methods for making same |
| US5500182A (en) * | 1991-07-12 | 1996-03-19 | Lanxide Technology Company, Lp | Ceramic composite bodies with increased metal content |
| US5435966A (en) * | 1991-07-12 | 1995-07-25 | Lanxide Technology Company, Lp | Reduced metal content ceramic composite bodies |
| JP4187347B2 (ja) * | 1998-04-02 | 2008-11-26 | 三星エスディアイ株式会社 | リチウムイオン電池用負極活物質の製造方法 |
| US5887240A (en) * | 1998-05-11 | 1999-03-23 | General Motors Corporation | Method of manufacturing a platinum electrode |
| US6719889B2 (en) | 2002-04-22 | 2004-04-13 | Northwest Aluminum Technologies | Cathode for aluminum producing electrolytic cell |
| US6863788B2 (en) * | 2002-07-29 | 2005-03-08 | Alcoa Inc. | Interlocking wettable ceramic tiles |
| US7462271B2 (en) * | 2003-11-26 | 2008-12-09 | Alcan International Limited | Stabilizers for titanium diboride-containing cathode structures |
| US7588179B2 (en) * | 2007-03-30 | 2009-09-15 | Honeywell International Inc. | Bonding of carbon fibers to metal inserts for use in composites |
| CN102575362B (zh) * | 2009-07-28 | 2015-09-02 | 美铝公司 | 用于制造铝熔炼中的可润湿阴极的组合物 |
| JP5554117B2 (ja) * | 2010-03-30 | 2014-07-23 | 日本電極株式会社 | アルミニウム精錬用カソードカーボンブロック及びその製造方法 |
| DE102011111331A1 (de) | 2011-08-23 | 2013-02-28 | Esk Ceramics Gmbh & Co. Kg | Titandiborid-Granulate als Erosionsschutz für Kathoden |
| US10777806B2 (en) | 2018-03-29 | 2020-09-15 | Baker Hughes, A Ge Company, Llc | Energy storage devices including at least one electrode comprising a metal diboride, and related methods |
| NZ792374A (en) | 2020-04-24 | 2024-07-26 | Norsk Hydro As | Cathode assembly for a hall-heroult cell for aluminium production and method for making same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3661736A (en) * | 1969-05-07 | 1972-05-09 | Olin Mathieson | Refractory hard metal composite cathode aluminum reduction cell |
| US4093524A (en) * | 1976-12-10 | 1978-06-06 | Kaiser Aluminum & Chemical Corporation | Bonding of refractory hard metal |
| US4308114A (en) * | 1980-07-21 | 1981-12-29 | Aluminum Company Of America | Electrolytic production of aluminum using a composite cathode |
| US4376029A (en) * | 1980-09-11 | 1983-03-08 | Great Lakes Carbon Corporation | Titanium diboride-graphite composits |
| CH645675A5 (de) * | 1980-11-26 | 1984-10-15 | Alusuisse | Kathode fuer eine schmelzflusselektrolysezelle zur herstellung von aluminium. |
| WO1983000347A1 (en) * | 1981-07-27 | 1983-02-03 | Great Lakes Carbon Corp | COMPOSITE OF TiB2-GRAPHITE |
| US4439382A (en) * | 1981-07-27 | 1984-03-27 | Great Lakes Carbon Corporation | Titanium diboride-graphite composites |
-
1983
- 1983-02-10 CH CH740/83A patent/CH654031A5/de not_active IP Right Cessation
-
1984
- 1984-01-12 DE DE3400932A patent/DE3400932C2/de not_active Expired
- 1984-01-18 AU AU23573/84A patent/AU2357384A/en not_active Abandoned
- 1984-01-20 IS IS2873A patent/IS2873A7/is unknown
- 1984-01-23 US US06/572,798 patent/US4492670A/en not_active Expired - Fee Related
- 1984-02-08 NO NO840465A patent/NO840465L/no unknown
- 1984-02-09 IT IT19514/84A patent/IT1175929B/it active
- 1984-02-10 JP JP59024207A patent/JPS59162289A/ja active Pending
- 1984-02-10 FR FR8402086A patent/FR2540890A1/fr not_active Withdrawn
- 1984-10-09 US US06/658,521 patent/US4544524A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AU2357384A (en) | 1984-08-16 |
| IT8419514A0 (it) | 1984-02-09 |
| FR2540890A1 (fr) | 1984-08-17 |
| IT1175929B (it) | 1987-08-12 |
| DE3400932C2 (de) | 1987-04-02 |
| US4544524A (en) | 1985-10-01 |
| DE3400932A1 (de) | 1984-08-23 |
| US4492670A (en) | 1985-01-08 |
| CH654031A5 (de) | 1986-01-31 |
| JPS59162289A (ja) | 1984-09-13 |
| IS2873A7 (is) | 1984-04-13 |
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