JPS4958112A - - Google Patents

Info

Publication number
JPS4958112A
JPS4958112A JP48075839A JP7583973A JPS4958112A JP S4958112 A JPS4958112 A JP S4958112A JP 48075839 A JP48075839 A JP 48075839A JP 7583973 A JP7583973 A JP 7583973A JP S4958112 A JPS4958112 A JP S4958112A
Authority
JP
Japan
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
JP48075839A
Other languages
Japanese (ja)
Other versions
JPS5734228B2 (enExample
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
Application filed filed Critical
Publication of JPS4958112A publication Critical patent/JPS4958112A/ja
Publication of JPS5734228B2 publication Critical patent/JPS5734228B2/ja
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2093—Ceramic foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/0615—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles
    • C04B38/062—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles the burned-out substance being formed in situ, e.g. by polymerisation of a prepolymer composition containing ceramic powder
    • C04B38/0625—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles the burned-out substance being formed in situ, e.g. by polymerisation of a prepolymer composition containing ceramic powder involving a foaming step of the burnable material
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/17—Molding a foam containing a filler
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/36—Processes of making metal-ceramics
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/48—Processes of making filters
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/77—Processes of molding urethanes
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S521/918—Physical aftertreatment of a cellular product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Powder Metallurgy (AREA)
  • Compositions Of Oxide Ceramics (AREA)
JP7583973A 1972-07-07 1973-07-06 Expired JPS5734228B2 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00269626A US3833386A (en) 1972-07-07 1972-07-07 Method of prepairing porous ceramic structures by firing a polyurethane foam that is impregnated with inorganic material

Publications (2)

Publication Number Publication Date
JPS4958112A true JPS4958112A (enExample) 1974-06-05
JPS5734228B2 JPS5734228B2 (enExample) 1982-07-21

Family

ID=23028021

Family Applications (2)

Application Number Title Priority Date Filing Date
JP7583973A Expired JPS5734228B2 (enExample) 1972-07-07 1973-07-06
JP56144552A Expired JPS6059183B2 (ja) 1972-07-07 1981-09-12 セラミツク発泡体構造体の製造方法

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP56144552A Expired JPS6059183B2 (ja) 1972-07-07 1981-09-12 セラミツク発泡体構造体の製造方法

Country Status (4)

Country Link
US (1) US3833386A (enExample)
JP (2) JPS5734228B2 (enExample)
CA (1) CA1011048A (enExample)
DE (1) DE2328610C2 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58500284A (ja) * 1981-02-04 1983-02-24 シヨツト、グラスヴエルケ 焼結されたガラス状および／または結晶性物質から成る多孔性成形体およびこのような多孔性成形体の製造方法
JPS61106471A (ja) * 1984-10-29 1986-05-24 株式会社イノアックコーポレーション セラミツクス多孔体の製造方法

Families Citing this family (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421526A (en) * 1972-11-13 1983-12-20 Sherwood Research And Development Partnership Polyurethane foam cleaning pads and a process for their manufacture
DE2325090C3 (de) * 1973-05-17 1980-11-06 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von als kolloides Xerosol vorliegendem anorganischorganischem Polymer-Polykieselsäure-Verbundmaterial
GB1483055A (en) * 1973-11-12 1977-08-17 Foseco Int Porous refractory ceramic materials
DE2359606C3 (de) * 1973-11-30 1980-01-17 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von als kolloides Xerosol vorliegendem anorganisch-organischen Polymer-Polykieselsäuregelverbundmaterial
DE2359612C3 (de) * 1973-11-30 1980-06-19 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von anorganischorganischem, als kolloidales Xerosol vorliegendem Polyharnstoff-Polykieselsäure-Verbundmaterial hoher Festigkeit, Elastizität, Wärmeformbeständigkeit und Schwerentflammbarkeit
US3947363A (en) * 1974-01-02 1976-03-30 Swiss Aluminium Limited Ceramic foam filter
US4056586A (en) * 1974-01-02 1977-11-01 Swiss Aluminium Limited Method of preparing molten metal filter
US3957685A (en) * 1974-02-27 1976-05-18 Helmut Heide Process for producing catalyst supports or catalyst systems having open pores
DE2524191C3 (de) * 1975-05-31 1980-04-03 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung bochgeffillter hydrophober Harnstoffgruppen enthaltender Leichtschaumstoffe
US4075092A (en) * 1976-08-10 1978-02-21 Research Corporation High surface area permeable material
US4231979A (en) * 1979-10-12 1980-11-04 Research Corporation High surface area permeable material
JPS56145153A (en) * 1980-03-05 1981-11-11 Toyo Tire & Rubber Co Manufacture of porous ceramic moldings
US4308233A (en) * 1980-03-10 1981-12-29 Bridgestone Tire Company Limited Device for purification of exhaust gas
US4548954A (en) * 1983-07-06 1985-10-22 Creative Products Resource Associates, Ltd. Floor cleaning composition
US4537914A (en) * 1983-07-06 1985-08-27 Creative Products Resource Associates, Ltd. Floor cleaning and waxing composition
US4551481A (en) * 1983-07-06 1985-11-05 Creative Products Resource Associates, Ltd. Floor cleaning composition
US4563483A (en) * 1983-07-06 1986-01-07 Creative Products Resource Ltd. Concrete cleaning composition
US4559244A (en) * 1984-02-27 1985-12-17 Kennecott Corporation Composite refractory foams
US4569861A (en) * 1984-06-18 1986-02-11 Creative Products Resource Associates, Ltd. Composite foam-textile cleaning pad
US4581287A (en) * 1984-06-18 1986-04-08 Creative Products Resource Associates, Ltd. Composite reticulated foam-textile cleaning pad
JPS6147719A (ja) * 1984-08-11 1986-03-08 Ikeda Bussan Co Ltd 難燃性ポリウレタンフオ−ムの製造方法
DE3700246A1 (de) * 1987-01-07 1988-07-21 Basf Ag Verfahren zur herstellung von formkoerpern durch sintern von polyisocyanat-polyadditionsprodukten
US4885263A (en) * 1987-03-23 1989-12-05 Swiss Aluminium Ltd. Ceramic foam filter and process for preparing same
US4975191A (en) * 1987-03-23 1990-12-04 Swiss Aluminium Ltd. Ceramic foam filter
JPS63270368A (ja) * 1987-04-30 1988-11-08 Okura Ind Co Ltd セラミツクス多孔体の製造方法
US4866011A (en) * 1988-05-02 1989-09-12 Swiss Aluminium, Ltd. Process for forming a ceramic foam
JPH02128521U (enExample) * 1989-03-27 1990-10-23
US5180694A (en) * 1989-06-01 1993-01-19 General Electric Company Silicon-oxy-carbide glass method of preparation and articles
US4981820A (en) * 1989-07-28 1991-01-01 General Electric Company Cellular silicon-oxy-carbide glass from foamed silicone resins
US5104909A (en) * 1989-09-21 1992-04-14 W. R. Grace & Co.-Conn. Water-absorbent, high capacity polyurethane foams
US5213612A (en) * 1991-10-17 1993-05-25 General Electric Company Method of forming porous bodies of molybdenum or tungsten
US5240493A (en) * 1992-01-16 1993-08-31 Institute Of Gas Technology Process for preparing submicron/nanosize ceramic powders from precursors incorporated within a polymeric foam
US5338334A (en) * 1992-01-16 1994-08-16 Institute Of Gas Technology Process for preparing submicron/nanosize ceramic powders from precursors incorporated within a polymeric foam
US5322821A (en) * 1993-08-23 1994-06-21 W. R. Grace & Co.-Conn. Porous ceramic beads
JP3442167B2 (ja) * 1993-12-28 2003-09-02 千代田化工建設株式会社 改質器における伝熱方法
US5827457A (en) * 1995-12-18 1998-10-27 Tseng; Chao-Ming Method for manufacturing a lightweight ceramic foamed substance
US6087024A (en) * 1996-12-17 2000-07-11 Whinnery; Leroy Louis Method for forming porous sintered bodies with controlled pore structure
US6383519B1 (en) 1999-01-26 2002-05-07 Vita Special Purpose Corporation Inorganic shaped bodies and methods for their production and use
JP3400740B2 (ja) * 1999-04-13 2003-04-28 東芝セラミックス株式会社 リン酸カルシウム系多孔質焼結体およびその製造方法
US6458162B1 (en) * 1999-08-13 2002-10-01 Vita Special Purpose Corporation Composite shaped bodies and methods for their production and use
DE19963554A1 (de) * 1999-12-22 2001-07-05 Hunger Hans Dieter Verfahren zur Herstellung von porösen Sinterkeramikwerkstoffen
DE10024561A1 (de) * 2000-05-18 2001-11-22 Basf Ag Verfahren zur Herstellung von porösen anorganischen Festkörpern aus einer wässrigen Kompositpartikeldispersion
US6736799B1 (en) 2000-10-24 2004-05-18 Vita Licensing, Inc. Delivery device for biological composites and method of preparation thereof
US7052517B2 (en) * 2000-10-24 2006-05-30 Vita Special Purpose Corporation Delivery device for biological composites and method of preparation thereof
US6706239B2 (en) 2001-02-05 2004-03-16 Porvair Plc Method of co-forming metal foam articles and the articles formed by the method thereof
US6660224B2 (en) 2001-08-16 2003-12-09 National Research Council Of Canada Method of making open cell material
US7108828B2 (en) * 2001-08-27 2006-09-19 National Research Council Of Canada Method of making open cell material
US7476925B2 (en) 2001-08-30 2009-01-13 Micron Technology, Inc. Atomic layer deposition of metal oxide and/or low asymmetrical tunnel barrier interploy insulators
AU2002352691A1 (en) 2001-12-07 2003-06-23 Regenesis, Llc Cleaning article containing hydrophilic polymers
US20030150294A1 (en) * 2002-01-25 2003-08-14 Njall Stefansson Filters for filtering molten metals and alloys field
US7589029B2 (en) 2002-05-02 2009-09-15 Micron Technology, Inc. Atomic layer deposition and conversion
US7192892B2 (en) 2003-03-04 2007-03-20 Micron Technology, Inc. Atomic layer deposited dielectric layers
US7189263B2 (en) * 2004-02-03 2007-03-13 Vita Special Purpose Corporation Biocompatible bone graft material
US9220595B2 (en) 2004-06-23 2015-12-29 Orthovita, Inc. Shapeable bone graft substitute and instruments for delivery thereof
US7328831B1 (en) 2004-06-25 2008-02-12 Porvair Plc Method of making a brazed metal article and the article formed thereby
WO2006074809A2 (en) 2005-01-13 2006-07-20 Cinvention Ag Composite materials containing carbon nanoparticles
US7572695B2 (en) 2005-05-27 2009-08-11 Micron Technology, Inc. Hafnium titanium oxide films
US7927948B2 (en) 2005-07-20 2011-04-19 Micron Technology, Inc. Devices with nanocrystals and methods of formation
EP1808229A1 (en) * 2006-01-12 2007-07-18 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Process for the preparation of a catalytic specie using electro-deposition.
EP2422822A1 (en) 2006-06-29 2012-02-29 Orthovita, Inc. Bioactive bone graft substitute
US8097203B2 (en) * 2007-01-29 2012-01-17 Corning Incorporated Crosslinked green body articles and method of manufacturing porous ceramic articles therefrom
JP5214305B2 (ja) * 2008-04-07 2013-06-19 セイコーエプソン株式会社 発泡金属焼結体の製造方法
JP5227640B2 (ja) * 2008-04-07 2013-07-03 セイコーエプソン株式会社 ヒートシンクの製造方法
US9334195B2 (en) 2009-10-28 2016-05-10 Universita Degli Studi Di Roma “Tor Vergata” Fabrication of dual structure ceramics by a single step process
US20110151027A1 (en) * 2009-12-21 2011-06-23 Theodore D Clineff Strontium-doped calcium phosphate bone graft materials
US8551525B2 (en) 2010-12-23 2013-10-08 Biostructures, Llc Bone graft materials and methods
EP2597075B1 (de) 2011-11-23 2016-01-27 Stiholt, Leif Poröser alpha-sic-haltiger formkörper mit durchgehend offener porenstruktur
CN105050684A (zh) 2012-12-07 2015-11-11 井上美国股份有限公司 可用于生成熔融金属过滤器的亲水热成网的聚氨酯泡沫体
US10194694B2 (en) 2016-01-05 2019-02-05 Rai Strategic Holdings, Inc. Aerosol delivery device with improved fluid transport
US10617151B2 (en) 2016-07-21 2020-04-14 Rai Strategic Holdings, Inc. Aerosol delivery device with a liquid transport element comprising a porous monolith and related method
US10602775B2 (en) 2016-07-21 2020-03-31 Rai Strategic Holdings, Inc. Aerosol delivery device with a unitary reservoir and liquid transport element comprising a porous monolith and related method
US20200077703A1 (en) 2018-09-11 2020-03-12 Rai Strategic Holdings, Inc. Wicking element for aerosol delivery device
CN112079749A (zh) * 2020-08-26 2020-12-15 山东师范大学 一种二苯基乙烷二异氰酸酯/季戊四醇预聚体及其制备方法和应用
US12426637B2 (en) 2021-08-17 2025-09-30 Rai Strategic Holdings, Inc. Inductively heated aerosol delivery device consumable

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412927A (en) * 1977-06-29 1979-01-31 Ricoh Kk Pronunciation correction study instrument

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CA694095A (en) * 1964-09-08 Wismer Marco Glass coverings for substrates
GB731071A (en) * 1951-07-19 1955-06-01 Du Pont Preparation of elastomers from polyalkylene ether glycols and diisocyanates
US2726219A (en) * 1951-07-19 1955-12-06 Du Pont Polyalkylene ether glycol-arylene diisocyanate elastomer sponge and process for preparing same
US3097930A (en) * 1960-03-09 1963-07-16 Cons Beryllium Ltd Method of making a porous shape of sintered refractory material
US3175918A (en) * 1960-10-07 1965-03-30 Carborundum Co Porous refractory bodies and the manufacture thereof
US3387940A (en) * 1963-08-29 1968-06-11 Union Carbide Corp High-strength carbon foam
GB1114385A (en) * 1965-03-29 1968-05-22 Sangotoki Kabushiki Kaisha Manufacture of porous ceramic material
US3345440A (en) * 1965-06-29 1967-10-03 John M Googin Method for manufacturing foam carbon products
US3572417A (en) * 1967-11-02 1971-03-23 Ppg Industries Inc Method for casting metals in foamed inorganic refractory molds
US3598772A (en) * 1969-01-28 1971-08-10 Hood Foam Ind Inc Mineral filled polyurethane foams
BE754455A (fr) * 1969-06-09 1971-01-18 Bayer Ag Procede de preparation de matieres en mousses a cellules ouvertes

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JPS5412927A (en) * 1977-06-29 1979-01-31 Ricoh Kk Pronunciation correction study instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58500284A (ja) * 1981-02-04 1983-02-24 シヨツト、グラスヴエルケ 焼結されたガラス状および／または結晶性物質から成る多孔性成形体およびこのような多孔性成形体の製造方法
JPS61106471A (ja) * 1984-10-29 1986-05-24 株式会社イノアックコーポレーション セラミツクス多孔体の製造方法

Also Published As

Publication number Publication date
JPS5795864A (en) 1982-06-14
DE2328610C2 (de) 1986-10-09
US3833386A (en) 1974-09-03
JPS6059183B2 (ja) 1985-12-24
DE2328610A1 (de) 1974-01-24
CA1011048A (en) 1977-05-24
JPS5734228B2 (enExample) 1982-07-21

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