JPS61203131A - キレート樹脂の製造方法 - Google Patents
キレート樹脂の製造方法Info
- Publication number
- JPS61203131A JPS61203131A JP60042490A JP4249085A JPS61203131A JP S61203131 A JPS61203131 A JP S61203131A JP 60042490 A JP60042490 A JP 60042490A JP 4249085 A JP4249085 A JP 4249085A JP S61203131 A JPS61203131 A JP S61203131A
- Authority
- JP
- Japan
- Prior art keywords
- polyethyleneimine
- polymer compound
- chelate resin
- formulas
- group
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 title claims abstract description 31
- 229920005989 resin Polymers 0.000 title claims abstract description 31
- 239000013522 chelant Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 33
- 150000001875 compounds Chemical class 0.000 claims abstract description 22
- 229920000642 polymer Polymers 0.000 claims abstract description 18
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 7
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 7
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims abstract description 5
- 150000005420 2-hydroxybenzoic acid derivatives Chemical class 0.000 claims abstract description 4
- -1 azido, phenyl Chemical group 0.000 claims abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 125000003816 2-hydroxybenzoyl group Chemical group OC1=C(C(=O)*)C=CC=C1 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 abstract description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 abstract description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 4
- 229910052801 chlorine Inorganic materials 0.000 abstract description 3
- 125000001309 chloro group Chemical group Cl* 0.000 abstract description 3
- 230000007062 hydrolysis Effects 0.000 abstract description 3
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 abstract 1
- 150000001455 metallic ions Chemical class 0.000 abstract 1
- 229910052770 Uranium Inorganic materials 0.000 description 15
- 239000003463 adsorbent Substances 0.000 description 15
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 12
- ZQBAKBUEJOMQEX-UHFFFAOYSA-N phenyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=CC=C1 ZQBAKBUEJOMQEX-UHFFFAOYSA-N 0.000 description 11
- 239000013535 sea water Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- SKZKKFZAGNVIMN-UHFFFAOYSA-N Salicilamide Chemical class NC(=O)C1=CC=CC=C1O SKZKKFZAGNVIMN-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 229910021645 metal ion Inorganic materials 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 229960000969 phenyl salicylate Drugs 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 5
- 239000001099 ammonium carbonate Substances 0.000 description 5
- 235000012501 ammonium carbonate Nutrition 0.000 description 5
- 125000000524 functional group Chemical group 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IIUJCQYKTGNRHH-UHFFFAOYSA-N 2,4-dihydroxybenzamide Chemical group NC(=O)C1=CC=C(O)C=C1O IIUJCQYKTGNRHH-UHFFFAOYSA-N 0.000 description 4
- 238000000862 absorption spectrum Methods 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 239000003446 ligand Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- WJRRDPPTDMGQRE-UHFFFAOYSA-N phenyl 2,4-dihydroxybenzoate Chemical compound OC1=CC(O)=CC=C1C(=O)OC1=CC=CC=C1 WJRRDPPTDMGQRE-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 3
- UIAFKZKHHVMJGS-UHFFFAOYSA-N 2,4-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1O UIAFKZKHHVMJGS-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- SFZULDYEOVSIKM-UHFFFAOYSA-N chembl321317 Chemical group C1=CC(C(=N)NO)=CC=C1C1=CC=C(C=2C=CC(=CC=2)C(=N)NO)O1 SFZULDYEOVSIKM-UHFFFAOYSA-N 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012921 fluorescence analysis Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- SMQUZDBALVYZAC-UHFFFAOYSA-N salicylaldehyde Chemical compound OC1=CC=CC=C1C=O SMQUZDBALVYZAC-UHFFFAOYSA-N 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- NEAQRZUHTPSBBM-UHFFFAOYSA-N 2-hydroxy-3,3-dimethyl-7-nitro-4h-isoquinolin-1-one Chemical compound C1=C([N+]([O-])=O)C=C2C(=O)N(O)C(C)(C)CC2=C1 NEAQRZUHTPSBBM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- SORGEQQSQGNZFI-UHFFFAOYSA-N [azido(phenoxy)phosphoryl]oxybenzene Chemical compound C=1C=CC=CC=1OP(=O)(N=[N+]=[N-])OC1=CC=CC=C1 SORGEQQSQGNZFI-UHFFFAOYSA-N 0.000 description 1
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000000852 azido group Chemical group *N=[N+]=[N-] 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 229940114055 beta-resorcylic acid Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical group NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001506 fluorescence spectroscopy Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910021655 trace metal ion Inorganic materials 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/0206—Polyalkylene(poly)amines
- C08G73/0213—Preparatory process
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/006—Radioactive compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60042490A JPS61203131A (ja) | 1985-03-04 | 1985-03-04 | キレート樹脂の製造方法 |
| US06/832,346 US4678844A (en) | 1985-03-04 | 1986-02-24 | Chelate, crosslinked polyethyleneimine resin having 2-hydroxy benzoyl group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60042490A JPS61203131A (ja) | 1985-03-04 | 1985-03-04 | キレート樹脂の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61203131A true JPS61203131A (ja) | 1986-09-09 |
| JPH0420930B2 JPH0420930B2 (OSRAM) | 1992-04-07 |
Family
ID=12637501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60042490A Granted JPS61203131A (ja) | 1985-03-04 | 1985-03-04 | キレート樹脂の製造方法 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4678844A (OSRAM) |
| JP (1) | JPS61203131A (OSRAM) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009235417A (ja) * | 2001-08-02 | 2009-10-15 | Asahi Kasei Chemicals Corp | 焼結体および樹脂粒子の製造方法 |
| JP2010116563A (ja) * | 2008-11-13 | 2010-05-27 | Samsung Electronics Co Ltd | 有機物質、該有機物質を含むフィルム、および該フィルムを具備した電気素子 |
| US9034212B2 (en) | 2008-09-30 | 2015-05-19 | Samsung Electronics Co., Ltd. | Composition for forming electron emission source, electron emission source including the composition, method of preparing the electron emission source, and field emission device including the electron emission source |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091278A (en) * | 1990-08-31 | 1992-02-25 | Xerox Corporation | Blocking layer for photoreceptors |
| US5166381A (en) * | 1990-08-31 | 1992-11-24 | Xerox Corporation | Blocking layer for photoreceptors |
| US5346627A (en) * | 1992-03-03 | 1994-09-13 | Nalco Chemical Company | Method for removing metals from a fluid stream |
| CA2251700A1 (en) * | 1996-05-03 | 1997-11-13 | Warner-Lambert Company | Rapid purification by polymer supported quench |
| US6333078B1 (en) * | 1998-12-14 | 2001-12-25 | Japan Atomic Energy Research Institute | Collector of dissolved metal from sea water having an amidoxime group and a hydrophilic group, a method for production thereof |
| AU2004212641B2 (en) * | 2003-02-19 | 2009-08-06 | Merck Millipore Ltd. | Composite materials comprising supported porous gels |
| AU2005231532B2 (en) | 2004-04-08 | 2010-01-07 | Merck Millipore Ltd. | Membrane stacks |
| EP1773485B1 (en) * | 2004-06-07 | 2015-09-16 | Natrix Separations Inc. | Stable composite material comprising supported porous gels |
| KR101694426B1 (ko) | 2008-09-02 | 2017-01-09 | 나트릭스 세퍼레이션즈, 인코포레이티드 | 크로마토그래피 막, 이를 포함하는 장치 및 이의 이용방법 |
| KR20120093349A (ko) * | 2009-11-13 | 2012-08-22 | 나트릭스 세퍼레이션즈, 인코포레이티드 | 소수성 상호반응 크로마토그래피용 막 및 그의 사용방법 |
| US9873088B2 (en) | 2011-05-17 | 2018-01-23 | Natrix Separations Inc. | Layered tubular membranes for chromatography, and methods of use thereof |
| CN103509182A (zh) * | 2012-06-21 | 2014-01-15 | 中国科学院苏州纳米技术与纳米仿生研究所 | 具有高缓冲能力基于聚乙烯亚胺的基因载体及其制备方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963806A (en) * | 1973-05-14 | 1976-06-15 | Esb Incorporated | Reaction product of polyalkylene imine and epoxy, halo, ethylenic substituted difunctional compounds |
| US3951815A (en) * | 1974-09-05 | 1976-04-20 | Universal Oil Products Company | Composite semipermeable membranes made from polyethylenimine |
| US4537937A (en) * | 1984-02-13 | 1985-08-27 | Olin Corporation | Chelating resin and process for making same |
-
1985
- 1985-03-04 JP JP60042490A patent/JPS61203131A/ja active Granted
-
1986
- 1986-02-24 US US06/832,346 patent/US4678844A/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009235417A (ja) * | 2001-08-02 | 2009-10-15 | Asahi Kasei Chemicals Corp | 焼結体および樹脂粒子の製造方法 |
| US9034212B2 (en) | 2008-09-30 | 2015-05-19 | Samsung Electronics Co., Ltd. | Composition for forming electron emission source, electron emission source including the composition, method of preparing the electron emission source, and field emission device including the electron emission source |
| JP2010116563A (ja) * | 2008-11-13 | 2010-05-27 | Samsung Electronics Co Ltd | 有機物質、該有機物質を含むフィルム、および該フィルムを具備した電気素子 |
| US8927116B2 (en) | 2008-11-13 | 2015-01-06 | Samsung Electronics Co., Ltd. | Organic material, film comprising the same and electric device comprising the film |
Also Published As
| Publication number | Publication date |
|---|---|
| US4678844A (en) | 1987-07-07 |
| JPH0420930B2 (OSRAM) | 1992-04-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |