FR2093601A5 - - Google Patents
Info
- Publication number
- FR2093601A5 FR2093601A5 FR7118488A FR7118488A FR2093601A5 FR 2093601 A5 FR2093601 A5 FR 2093601A5 FR 7118488 A FR7118488 A FR 7118488A FR 7118488 A FR7118488 A FR 7118488A FR 2093601 A5 FR2093601 A5 FR 2093601A5
- Authority
- FR
- France
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/281—Sorbents specially adapted for preparative, analytical or investigative chromatography
- B01J20/282—Porous sorbents
- B01J20/283—Porous sorbents based on silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/281—Sorbents specially adapted for preparative, analytical or investigative chromatography
- B01J20/286—Phases chemically bonded to a substrate, e.g. to silica or to polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3214—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating
- B01J20/3217—Resulting in a chemical bond between the coating or impregnating layer and the carrier, support or substrate, e.g. a covalent bond
- B01J20/3219—Resulting in a chemical bond between the coating or impregnating layer and the carrier, support or substrate, e.g. a covalent bond involving a particular spacer or linking group, e.g. for attaching an active group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
- B01J20/3244—Non-macromolecular compounds
- B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
- B01J20/3257—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
- B01J20/3244—Non-macromolecular compounds
- B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
- B01J20/3257—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such
- B01J20/3261—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such comprising a cyclic structure not containing any of the heteroatoms nitrogen, oxygen or sulfur, e.g. aromatic structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
- B01J20/3268—Macromolecular compounds
- B01J20/3272—Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
- B01J20/3268—Macromolecular compounds
- B01J20/3276—Copolymers
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
-
- 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
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/001—Macromolecular compounds containing organic and inorganic sequences, e.g. organic polymers grafted onto silica
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3966570A | 1970-05-22 | 1970-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2093601A5 true FR2093601A5 (en) | 1972-01-28 |
Family
ID=21906710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7118488A Expired FR2093601A5 (en) | 1970-05-22 | 1971-05-21 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3722181A (en) |
| JP (2) | JPS5217078B1 (en) |
| CH (1) | CH578732A5 (en) |
| DE (1) | DE2125428C2 (en) |
| FR (1) | FR2093601A5 (en) |
| GB (1) | GB1354357A (en) |
| NL (1) | NL7107016A (en) |
| SE (1) | SE399647B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0143423A2 (en) * | 1983-11-25 | 1985-06-05 | J.T. Baker Inc. | Polyethylenimide bound chromatographic packing |
| EP0181266A2 (en) * | 1984-11-06 | 1986-05-14 | Compagnie De Raffinage Et De Distribution Total France | Process for preparing a stationary phase for a chromatographic column, the chromatographic column obtained and its use |
Families Citing this family (63)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3984349A (en) * | 1971-07-26 | 1976-10-05 | Societe Rhone-Progil | Modified porous bodies |
| DE2225973C2 (en) * | 1972-05-27 | 1974-07-04 | Merck Patent Gmbh, 6100 Darmstadt | Process for coating non-porous material with a porous silicon dioxide layer |
| US3878092A (en) * | 1973-03-12 | 1975-04-15 | Phillips Petroleum Co | Chromatographic colums |
| US3983299A (en) * | 1974-03-04 | 1976-09-28 | Purdue Research Foundation | Bonded carbohydrate stationary phases for chromatography |
| JPS5247355B2 (en) * | 1974-10-15 | 1977-12-01 | ||
| GB1527598A (en) * | 1974-11-12 | 1978-10-04 | Dow Corning Ltd | Catalysts and carriers therefor |
| US3987058A (en) * | 1975-02-27 | 1976-10-19 | The United States Of America As Represented By The Secretary Of Agriculture | Preparation and uses of stable, bound stationary phases |
| US4029583A (en) * | 1975-02-28 | 1977-06-14 | Purdue Research Foundation | Chromatographic supports and methods and apparatus for preparing the same |
| US4169790A (en) * | 1975-05-02 | 1979-10-02 | South African Inventions Development Corporation | Solid surface texture suitable for a stationary phase for chromatography |
| US4140653A (en) * | 1975-09-30 | 1979-02-20 | Toyo Soda Manufacturing Co., Ltd. | Solid support for liquid chromatography |
| US4118316A (en) * | 1976-10-13 | 1978-10-03 | Calgon Corporation | Quaternized siliceous supports for gel permeation chromatography |
| JPS5489691A (en) * | 1977-12-24 | 1979-07-16 | Nippon Bunko Kogyo Kk | Open tube type capillary column for micro rapid liquid chromatography and production thereof |
| US4199330A (en) * | 1978-02-13 | 1980-04-22 | The Dow Chemical Company | Bonded organo-pellicular packings for chromatographic columns |
| US4243753A (en) * | 1978-02-27 | 1981-01-06 | Purdue Research Foundation | Apparatus for enzyme detection |
| US4209554A (en) * | 1979-02-22 | 1980-06-24 | Scm Corporation | Polydentate metal salts used in the process for the deactivation of glass surfaces and capillary columns therewith |
| US4242227A (en) * | 1979-07-31 | 1980-12-30 | The Dow Chemical Company | Chromatographic column packing having a bonded organosiloxane coating |
| US4324689A (en) * | 1980-02-26 | 1982-04-13 | Shah Ramesh M | High carbon content chromatographic packing and method for making same |
| US4737316A (en) * | 1982-11-24 | 1988-04-12 | Pedro B. Macedo | Purification of contaminated liquid |
| US4591455A (en) * | 1982-11-24 | 1986-05-27 | Pedro B. Macedo | Purification of contaminated liquid |
| US4648975A (en) * | 1983-08-17 | 1987-03-10 | Pedro B. Macedo | Process of using improved silica-based chromatographic supports containing additives |
| DE3427923A1 (en) * | 1984-07-28 | 1986-01-30 | Merck Patent Gmbh, 6100 Darmstadt | SEPARATING MATERIAL FOR THICK LAYER CHROMATOGRAPHY |
| FI845161A0 (en) * | 1984-12-28 | 1984-12-28 | Ksv Chemicals Oy | YTBEHANDLINGSMEDEL. |
| JPS61210956A (en) * | 1985-03-15 | 1986-09-19 | Cosmo Co Ltd | Thin layer bar for chromatography |
| US4551245A (en) * | 1985-04-22 | 1985-11-05 | J. T. Baker Chemical Co. | Acylated polyethylenimine bound chromatographic packing |
| US4743377A (en) * | 1985-07-02 | 1988-05-10 | Shiseido Company Ltd. | Packing material for liquid chromatography |
| US5032266A (en) * | 1985-11-01 | 1991-07-16 | E. I. Du Pont De Nemours And Company | Porous silica microspheres having silanol-enriched and silanized surfaces |
| US4874518A (en) * | 1985-11-01 | 1989-10-17 | E. I. Du Pont De Nemours And Company | Porous silica microspheres having a silanol enriched surface |
| US5108595A (en) * | 1985-11-01 | 1992-04-28 | E. I. Du Pont De Nemours And Company | Porous silica microspheres having silanol-enriched and silanized surfaces |
| GB8618322D0 (en) * | 1986-07-28 | 1986-09-03 | 3I Res Expl Ltd | Bonded chromotographic stationary phase |
| US4705725A (en) * | 1986-11-28 | 1987-11-10 | E. I. Du Pont De Nemours And Company | Substrates with sterically-protected, stable, covalently-bonded organo-silane films |
| US4746572A (en) * | 1986-11-28 | 1988-05-24 | E. I. Dupont De Nemours And Company | Structures surface modified with bidentate silanes |
| US5055194A (en) * | 1989-07-28 | 1991-10-08 | University Of Pennsylvania | Support for high performance liquid chromatography in a magnetically stabilized fluidized bed |
| US5087597A (en) * | 1990-07-19 | 1992-02-11 | Armada De La Republica De Venezuela | Carbon dioxide adsorbent and method for producing the adsorbent |
| US5518622A (en) * | 1992-02-10 | 1996-05-21 | Dionex Corporation | Electrochemical pretreatment system for liquid sample analysis |
| US5248426A (en) * | 1992-02-10 | 1993-09-28 | Dionex Corporation | Ion chromatography system using electrochemical suppression and detector effluent recycle |
| DE69428437T2 (en) * | 1994-07-20 | 2002-06-20 | Uetikon Chemie Ag | Chromatography using silica-based adsorbents. |
| US5935443A (en) | 1995-03-03 | 1999-08-10 | Alltech Associates, Inc. | Electrochemically regenerated ion neutralization and concentration devices and systems |
| EP2264447A3 (en) * | 1995-03-03 | 2011-05-25 | Dionex Corporation | Apparatus for Generating a High Purity Eluant |
| US5637135A (en) * | 1995-06-26 | 1997-06-10 | Capillary Technology Corporation | Chromatographic stationary phases and adsorbents from hybrid organic-inorganic sol-gels |
| US5667674A (en) * | 1996-01-11 | 1997-09-16 | Minnesota Mining And Manufacturing Company | Adsorption medium and method of preparing same |
| US5915269A (en) * | 1997-04-15 | 1999-06-22 | The Perkin-Elmer Corporation | Method and apparatus to compensate for gas chromatograph column permeability |
| US5869724A (en) * | 1997-06-20 | 1999-02-09 | Hewlett-Packard Company | Asymmetric bidentate silanes |
| US5948531A (en) * | 1997-06-20 | 1999-09-07 | Hewlett-Packard Company | Propylene-bridged bidentate silanes |
| WO2002072225A1 (en) * | 2001-03-09 | 2002-09-19 | University Of South Florida | High efficiency sol-gel gas chromatography column |
| US20040129141A1 (en) * | 2002-03-08 | 2004-07-08 | Abdul Malik | High efficiency sol-gel gas chromatography column |
| US20060005877A1 (en) * | 2004-07-06 | 2006-01-12 | General Electric Company | Passivated, dye-sensitized oxide semiconductor electrode, solar cell using same, and method |
| JP5021479B2 (en) | 2004-10-01 | 2012-09-05 | フェノメネクス インコーポレイテッド | PH stable chromatographic media using templated multilayer organic / inorganic graffiti |
| US9308520B2 (en) * | 2005-12-16 | 2016-04-12 | Akzo Nobel N.V. | Silica based material |
| US8277883B2 (en) * | 2008-06-13 | 2012-10-02 | Agilent Technologies, Inc. | Porous silica microspheres having organosilane modified surfaces |
| US10543662B2 (en) | 2012-02-08 | 2020-01-28 | Corning Incorporated | Device modified substrate article and methods for making |
| US10086584B2 (en) | 2012-12-13 | 2018-10-02 | Corning Incorporated | Glass articles and methods for controlled bonding of glass sheets with carriers |
| TWI617437B (en) | 2012-12-13 | 2018-03-11 | 康寧公司 | Facilitated processing for controlling bonding between sheet and carrier |
| US10014177B2 (en) | 2012-12-13 | 2018-07-03 | Corning Incorporated | Methods for processing electronic devices |
| US9340443B2 (en) | 2012-12-13 | 2016-05-17 | Corning Incorporated | Bulk annealing of glass sheets |
| US10510576B2 (en) | 2013-10-14 | 2019-12-17 | Corning Incorporated | Carrier-bonding methods and articles for semiconductor and interposer processing |
| JP6770432B2 (en) | 2014-01-27 | 2020-10-14 | コーニング インコーポレイテッド | Articles and methods for controlled binding of thin sheets to carriers |
| KR20160145062A (en) | 2014-04-09 | 2016-12-19 | 코닝 인코포레이티드 | Device modified substrate article and methods for making |
| JP2018524201A (en) | 2015-05-19 | 2018-08-30 | コーニング インコーポレイテッド | Articles and methods for bonding sheets with carriers |
| JP7106276B2 (en) | 2015-06-26 | 2022-07-26 | コーニング インコーポレイテッド | Articles and methods with sheets and carriers |
| TW201825623A (en) | 2016-08-30 | 2018-07-16 | 美商康寧公司 | Siloxane plasma polymers for sheet bonding |
| TWI810161B (en) | 2016-08-31 | 2023-08-01 | 美商康寧公司 | Articles of controllably bonded sheets and methods for making same |
| CN111615567B (en) | 2017-12-15 | 2023-04-14 | 康宁股份有限公司 | Method for treating substrate and method for producing article including adhesive sheet |
| CN113000028A (en) * | 2021-04-27 | 2021-06-22 | 临沂海普新材料科技有限公司 | Preparation method of adsorbent for recovering phosphoric acid in waste acid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3514925A (en) * | 1967-09-05 | 1970-06-02 | Mine Safety Appliances Co | Gas chromatography column and method of making same |
| US3500616A (en) * | 1968-05-08 | 1970-03-17 | Mine Safety Appliances Co | Adsorbent for gas-solid chromatography |
| JPS5217078A (en) * | 1975-07-31 | 1977-02-08 | Yokogawa Hokushin Electric Corp | Cable abnormal point detecting system |
-
1970
- 1970-05-22 US US00039665A patent/US3722181A/en not_active Expired - Lifetime
-
1971
- 1971-05-18 SE SE7106455A patent/SE399647B/en unknown
- 1971-05-21 NL NL7107016A patent/NL7107016A/xx unknown
- 1971-05-21 DE DE2125428A patent/DE2125428C2/en not_active Expired
- 1971-05-21 FR FR7118488A patent/FR2093601A5/fr not_active Expired
- 1971-05-21 CH CH750371A patent/CH578732A5/xx not_active IP Right Cessation
- 1971-05-21 JP JP46034153A patent/JPS5217078B1/ja active Pending
- 1971-05-24 GB GB1669871A patent/GB1354357A/en not_active Expired
-
1973
- 1973-12-26 JP JP48144158A patent/JPS49125098A/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0143423A2 (en) * | 1983-11-25 | 1985-06-05 | J.T. Baker Inc. | Polyethylenimide bound chromatographic packing |
| EP0143423A3 (en) * | 1983-11-25 | 1986-03-12 | J.T. Baker Chemical Co. | Polyethylenimide bound chromatographic packing |
| EP0181266A2 (en) * | 1984-11-06 | 1986-05-14 | Compagnie De Raffinage Et De Distribution Total France | Process for preparing a stationary phase for a chromatographic column, the chromatographic column obtained and its use |
| EP0181266A3 (en) * | 1984-11-06 | 1987-03-04 | Compagnie Francaise De Raffinage Societe Anonyme Dite: | Process for preparing a stationary phase for a chromatographic column, the chromatographic column obtained and its use |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2125428A1 (en) | 1971-12-02 |
| CH578732A5 (en) | 1976-08-13 |
| NL7107016A (en) | 1971-11-24 |
| GB1354357A (en) | 1974-06-05 |
| DE2125428C2 (en) | 1984-05-30 |
| US3722181A (en) | 1973-03-27 |
| SE399647B (en) | 1978-02-27 |
| JPS5217078B1 (en) | 1977-05-13 |
| JPS49125098A (en) | 1974-11-29 |