FR2328508A1 - Gels poreux, leur procede d'obtention et applications - Google Patents

Gels poreux, leur procede d'obtention et applications

Info

Publication number
FR2328508A1
FR2328508A1 FR7631788A FR7631788A FR2328508A1 FR 2328508 A1 FR2328508 A1 FR 2328508A1 FR 7631788 A FR7631788 A FR 7631788A FR 7631788 A FR7631788 A FR 7631788A FR 2328508 A1 FR2328508 A1 FR 2328508A1
Authority
FR
France
Prior art keywords
obtaining
applications
porous gels
gels
porous
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
Application number
FR7631788A
Other languages
English (en)
French (fr)
Other versions
FR2328508B1 (enExample
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB4346375A external-priority patent/GB1567003A/en
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of FR2328508A1 publication Critical patent/FR2328508A1/fr
Application granted granted Critical
Publication of FR2328508B1 publication Critical patent/FR2328508B1/fr
Granted legal-status Critical Current

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
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0052—Preparation of gels
    • B01J13/0056—Preparation of gels containing inorganic material and water
    • 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
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • 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
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • 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
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/02—Oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C01P2006/13—Surface area thermal stability thereof at high temperatures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/14—Pore volume
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/16—Pore diameter
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Silicon Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Colloid Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Catalysts (AREA)
FR7631788A 1975-10-22 1976-10-21 Gels poreux, leur procede d'obtention et applications Granted FR2328508A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4346375A GB1567003A (en) 1975-10-22 1975-10-22 Sols and gels
GB2549776 1976-06-18

Publications (2)

Publication Number Publication Date
FR2328508A1 true FR2328508A1 (fr) 1977-05-20
FR2328508B1 FR2328508B1 (enExample) 1980-09-05

Family

ID=26257712

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7631788A Granted FR2328508A1 (fr) 1975-10-22 1976-10-21 Gels poreux, leur procede d'obtention et applications

Country Status (5)

Country Link
US (1) US4389385A (enExample)
JP (1) JPS5252876A (enExample)
DE (1) DE2647701A1 (enExample)
FR (1) FR2328508A1 (enExample)
SE (1) SE434312B (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430924A1 (fr) * 1978-07-10 1980-02-08 Ici Ltd Conversion d'hydrocarbures
EP0136937A1 (fr) * 1983-09-06 1985-04-10 Societe Des Ceramiques Techniques Procédé de fabrication d'un élement de microfiltration, d'ultrafiltration ou d'osmose inverse
FR2555067A1 (fr) * 1983-11-23 1985-05-24 Ceraver Procede de fabrication d'un element de microfiltration, d'ultrafiltration ou d'osmose inverse
EP0490226A1 (en) * 1990-12-11 1992-06-17 W.R. Grace & Co.-Conn. Porous titania spheres
EP0611192A1 (fr) * 1993-02-10 1994-08-17 Rhone-Poulenc Chimie Procédé de préparation de compositions à base d'oxydes mixtes de zirconium et de cérium
EP0618004A1 (en) * 1993-02-24 1994-10-05 W.R. Grace & Co. Novel SOx/NOx sorbent and process of use
EP0635300A1 (en) * 1993-07-19 1995-01-25 Snow Brand Milk Products Co., Ltd. Column packings for liquid chromatography

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830231A1 (de) * 1978-07-10 1980-01-24 Ici Ltd Verfahren zur umsetzung von kohlenwasserstoffen
JPS5721931A (en) * 1980-07-15 1982-02-04 Hitachi Ltd Preparation of gel
EP0048100B1 (en) * 1980-09-11 1984-07-18 United Kingdom Atomic Energy Authority Process for removing water from gel materials
GB8303574D0 (en) * 1983-02-09 1983-03-16 Ici Plc Hydrocarbon conversion processes
JPS6021802A (ja) * 1983-07-15 1985-02-04 Daido Sanso Kk 均一な細孔を有する金属酸化物、その製造方法およびその金属酸化物からなる触媒用担体
US4937209A (en) * 1984-02-09 1990-06-26 Ecc International Limited Porous inorganic materials
GB8722451D0 (en) * 1987-09-24 1987-10-28 Ecc Int Ltd Biological support
CA1253129A (en) * 1984-02-09 1989-04-25 Thomas R. Jones Porous inorganic materials
DE3440018C1 (de) * 1984-11-02 1986-03-20 Kali-Chemie Ag, 3000 Hannover Verfahren zur Entwaesserung von wasserhaltigen,anorganischen Oxidgelen
US4849378A (en) * 1985-02-25 1989-07-18 University Of Florida Ultraporous gel monoliths having predetermined pore sizes and their production
US4649037A (en) * 1985-03-29 1987-03-10 Allied Corporation Spray-dried inorganic oxides from non-aqueous gels or solutions
DE3616133A1 (de) * 1985-09-25 1987-11-19 Merck Patent Gmbh Kugelfoermige sio(pfeil abwaerts)2(pfeil abwaerts)-partikel
JPH0762674B2 (ja) * 1986-03-07 1995-07-05 株式会社高研 クロマトグラフイ−用吸着剤、及びその製造方法、並びに該吸着剤を使用したクロマトグラフイ−カラム
EP0239970A3 (en) * 1986-03-31 1988-04-20 Toa Nenryo Kogyo Kabushiki Kaisha Assemblage of hydroxyl apatite particles and liquid chromatography column using the same
US5145578A (en) * 1987-07-03 1992-09-08 Shiseido Company Ltd. Packing material for liquid chromatography
US5141634A (en) * 1988-02-03 1992-08-25 Regents Of The University Of Minnesota High stability porous zirconium oxide spherules
US5205929A (en) * 1988-02-03 1993-04-27 Regents Of The University Of Minnesota High stability porous zirconium oxide spherules
US5015373A (en) * 1988-02-03 1991-05-14 Regents Of The University Of Minnesota High stability porous zirconium oxide spherules
FR2632624B1 (fr) * 1988-06-10 1990-09-28 Rhone Poulenc Chimie Procede de fabrication d'oxydes metalliques a structure lamellaire pontee oxydes metalliques obtenus, oxyde de vanadium et son application comme catalyseur dans l'hydroxylation du phenol
JPH0275340A (ja) * 1988-09-09 1990-03-15 Kanegafuchi Chem Ind Co Ltd 吸着体
US5595717A (en) * 1989-03-23 1997-01-21 Tasman Pulp & Paper Co., Limited Controlled precipitation of amorphous silica from geothermal fluids or other aqueous media containing silicic acid
NZ232170A (en) * 1989-03-23 1993-01-27 Tasman Pulp & Paper Co Ltd Precipitation of amorphous silica from geothermal fluid; use of silica in coating paper sheet
US5108597A (en) * 1990-03-22 1992-04-28 Regents Of The University Of Minnesota Carbon-clad zirconium oxide particles
US5271833A (en) * 1990-03-22 1993-12-21 Regents Of The University Of Minnesota Polymer-coated carbon-clad inorganic oxide particles
US5182016A (en) * 1990-03-22 1993-01-26 Regents Of The University Of Minnesota Polymer-coated carbon-clad inorganic oxide particles
US5254262A (en) * 1990-03-22 1993-10-19 Regents Of The University Of Minnesota Carbon-clad zirconium oxide particles
EP0685258A4 (en) * 1993-12-21 1996-05-15 Toray Industries MATERIAL WITH SELECTIVE ADSORPTION PROPERTIES FOR INORGANIC MATERIALS AND THEIR PRODUCTION METHOD.
US5540834A (en) * 1994-08-23 1996-07-30 Regents Of The University Of Minnesota Synthesis of porous inorganic particles by polymerization-induced colloid aggregation (PICA)
US5837826A (en) * 1995-02-27 1998-11-17 Regents Of The University Of Minnesota Protein adsorption by very dense porous zirconium oxide particles in expanded beds
IT1276726B1 (it) * 1995-06-15 1997-11-03 Eniricerche Spa Gel di allumina mesoporoso e procedimento per la sua preparazione
US5637135A (en) * 1995-06-26 1997-06-10 Capillary Technology Corporation Chromatographic stationary phases and adsorbents from hybrid organic-inorganic sol-gels
US5772874A (en) * 1995-11-02 1998-06-30 Cohesive Technologies, Inc. High performance liquid chromatography method and apparatus
DK0840893T3 (da) * 1996-01-19 2000-04-03 Cohesive Tech Inc Fremgangsmåde og apparat til højeffektiv væskekromatografi
DE19638442A1 (de) * 1996-09-19 1998-03-26 Sued Chemie Ag Aluminiumoxidische Massen mit sehr enger Porenradienverteilung
US6129904A (en) * 1996-09-19 2000-10-10 Sud-Chemie A.G. Aluminum oxide masses with very narrow pore radius distribution
US6110362A (en) * 1997-11-19 2000-08-29 Cohesive Technologies, Inc. Chemical analysis
US6029866A (en) * 1998-09-29 2000-02-29 Aptargroup, Inc. Multiple injection, toggle-action dispensing structure
US6401990B1 (en) 2000-06-19 2002-06-11 Seaquist Closures Foreign, Inc. Finger-operable pump actuator with finger pad
US6761968B2 (en) 2000-12-01 2004-07-13 Teijin Limited Biaxially oriented polyester film
US6481589B2 (en) 2001-02-22 2002-11-19 Seaquist Closures Foreign, Inc. Non-dispensing closure
US6846410B2 (en) * 2002-05-03 2005-01-25 Zirchrom Separations, Inc. High stability porous metal oxide spherules used for one-step antibody purifications
JP2004131373A (ja) * 2002-09-09 2004-04-30 Corning Inc シリカ・チタニア極端紫外線光学素子の製造方法
EP1991203A2 (en) * 2006-02-13 2008-11-19 Advanced Materials Technology, Inc. Porous microparticles solid cores
WO2017082423A1 (ja) * 2015-11-11 2017-05-18 旭化成メディカル株式会社 血液処理用リン吸着剤、血液処理システム及び血液処理方法
CN111659323B (zh) * 2020-04-28 2021-05-14 南京工业大学 一种复合型气凝胶功能材料及其制备方法和应用

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684016A (en) * 1950-04-03 1952-12-10 Schweizerhall Saeurefab Process for the preparation of neutral, inorganic oxide pigments
US3301635A (en) * 1965-07-01 1967-01-31 Du Pont Molded amorphous silica bodies and molding powders for manufacture of same
GB1058618A (en) * 1963-02-15 1967-02-15 Degussa Process for the preparation of silicon dioxide aggregates
FR1548907A (enExample) * 1966-12-19 1968-12-06
GB1152051A (en) * 1965-07-06 1969-05-14 Ppg Industries Inc Treatment of Pigments
FR2134510A1 (enExample) * 1971-04-26 1972-12-08 Elkem As
FR2179219A1 (enExample) * 1972-04-07 1973-11-16 Du Pont

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103495A (en) * 1963-09-10 Process for producing same
US2535948A (en) * 1949-03-25 1950-12-26 Davison Chemical Corp Incorporation of fines in a silicaalumina catalyst
BE509387A (enExample) * 1951-03-01
DE949048C (de) * 1953-01-17 1956-09-13 Degussa Verfahren zur Herstellung von Formkoerpern zur Verwendung als Fuellmittel fuer Kautschuk und Kunststoffe aus feinverteilten Oxyden
US2900349A (en) * 1954-02-11 1959-08-18 Socony Mobil Oil Co Inc Attrition-resistant inorganic oxide gels and method for preparing the same
DE1096336B (de) * 1956-09-25 1961-01-05 Socony Mobil Oil Co Inc Verfahren zur Herstellung eines anorganischen Oxydgels von hohem Abriebwiderstand
US3086845A (en) * 1957-05-17 1963-04-23 American Cyanamid Co Alumina of controlled density
NL7206539A (enExample) * 1972-05-15 1973-11-19
DE2414478C3 (de) * 1974-03-26 1978-07-13 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Aerogelartige strukturierte Kieselsäure und Verfahren zu ihrer Herstellung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684016A (en) * 1950-04-03 1952-12-10 Schweizerhall Saeurefab Process for the preparation of neutral, inorganic oxide pigments
GB1058618A (en) * 1963-02-15 1967-02-15 Degussa Process for the preparation of silicon dioxide aggregates
US3301635A (en) * 1965-07-01 1967-01-31 Du Pont Molded amorphous silica bodies and molding powders for manufacture of same
GB1152051A (en) * 1965-07-06 1969-05-14 Ppg Industries Inc Treatment of Pigments
FR1548907A (enExample) * 1966-12-19 1968-12-06
FR2134510A1 (enExample) * 1971-04-26 1972-12-08 Elkem As
FR2179219A1 (enExample) * 1972-04-07 1973-11-16 Du Pont

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430924A1 (fr) * 1978-07-10 1980-02-08 Ici Ltd Conversion d'hydrocarbures
EP0136937A1 (fr) * 1983-09-06 1985-04-10 Societe Des Ceramiques Techniques Procédé de fabrication d'un élement de microfiltration, d'ultrafiltration ou d'osmose inverse
FR2555067A1 (fr) * 1983-11-23 1985-05-24 Ceraver Procede de fabrication d'un element de microfiltration, d'ultrafiltration ou d'osmose inverse
EP0490226A1 (en) * 1990-12-11 1992-06-17 W.R. Grace & Co.-Conn. Porous titania spheres
EP0611192A1 (fr) * 1993-02-10 1994-08-17 Rhone-Poulenc Chimie Procédé de préparation de compositions à base d'oxydes mixtes de zirconium et de cérium
FR2701472A1 (fr) * 1993-02-10 1994-08-19 Rhone Poulenc Chimie Procédé de préparation de compositions à base d'oxydes mixtes de zirconium et de cérium.
US5532198A (en) * 1993-02-10 1996-07-02 Rhone-Poulenc Chimie Zirconium/cerium mixed oxide catalyst/catalyst support compositions having high/stable specific surfaces
EP0618004A1 (en) * 1993-02-24 1994-10-05 W.R. Grace & Co. Novel SOx/NOx sorbent and process of use
US5427995A (en) * 1993-02-24 1995-06-27 W. R. Grace & Co.-Conn. SOx/NOx sorbent and process of use
EP0720864A1 (en) * 1993-02-24 1996-07-10 W.R. Grace & Co.-Conn. Process for removing sulphur and nitrogen oxides from a gas using a sorbent
US5585082A (en) * 1993-02-24 1996-12-17 W. R. Grace & Co.-Conn. SOx/NOx sorbent and process of use
EP0635300A1 (en) * 1993-07-19 1995-01-25 Snow Brand Milk Products Co., Ltd. Column packings for liquid chromatography

Also Published As

Publication number Publication date
SE434312B (sv) 1984-07-16
JPS611169B2 (enExample) 1986-01-14
FR2328508B1 (enExample) 1980-09-05
SE7611689L (sv) 1977-04-23
DE2647701A1 (de) 1977-04-28
JPS5252876A (en) 1977-04-28
US4389385A (en) 1983-06-21

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