FR2308650A1 - Procede de preparation de composes d'organosilicium a haut poids moleculaire eux-memes utilisables dans la preparation de fibres de carbure de silicium - Google Patents

Procede de preparation de composes d'organosilicium a haut poids moleculaire eux-memes utilisables dans la preparation de fibres de carbure de silicium

Info

Publication number
FR2308650A1
FR2308650A1 FR7612181A FR7612181A FR2308650A1 FR 2308650 A1 FR2308650 A1 FR 2308650A1 FR 7612181 A FR7612181 A FR 7612181A FR 7612181 A FR7612181 A FR 7612181A FR 2308650 A1 FR2308650 A1 FR 2308650A1
Authority
FR
France
Prior art keywords
preparation
molecular weight
silicon carbide
high molecular
organosilicon compounds
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
FR7612181A
Other languages
English (en)
Other versions
FR2308650B1 (fr
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.)
RES INST IRON STEEL
Original Assignee
RES INST IRON STEEL
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 by RES INST IRON STEEL filed Critical RES INST IRON STEEL
Publication of FR2308650A1 publication Critical patent/FR2308650A1/fr
Application granted granted Critical
Publication of FR2308650B1 publication Critical patent/FR2308650B1/fr
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515Shaped 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
    • C04B35/56Shaped 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 carbides or oxycarbides
    • C04B35/565Shaped 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 carbides or oxycarbides based on silicon carbide
    • C04B35/571Shaped 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 carbides or oxycarbides based on silicon carbide obtained from Si-containing polymer precursors or organosilicon monomers
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/90Carbides
    • C01B32/914Carbides of single elements
    • C01B32/956Silicon carbide
    • C01B32/963Preparation from compounds containing silicon
    • C01B32/977Preparation from organic compounds containing silicon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/60Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which all the silicon atoms are connected by linkages other than oxygen atoms
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/96Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from other synthetic polymers
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/10Particle morphology extending in one dimension, e.g. needle-like

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Silicon Polymers (AREA)
  • Inorganic Fibers (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Artificial Filaments (AREA)
FR7612181A 1975-04-26 1976-04-23 Procede de preparation de composes d'organosilicium a haut poids moleculaire eux-memes utilisables dans la preparation de fibres de carbure de silicium Granted FR2308650A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50050223A JPS51126300A (en) 1975-04-26 1975-04-26 Method for manufacturing an organoo silicon polymer having silicon and carbon atoms as main skeleton component

Publications (2)

Publication Number Publication Date
FR2308650A1 true FR2308650A1 (fr) 1976-11-19
FR2308650B1 FR2308650B1 (fr) 1979-04-20

Family

ID=12853036

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7612181A Granted FR2308650A1 (fr) 1975-04-26 1976-04-23 Procede de preparation de composes d'organosilicium a haut poids moleculaire eux-memes utilisables dans la preparation de fibres de carbure de silicium

Country Status (9)

Country Link
US (1) US4052430A (fr)
JP (1) JPS51126300A (fr)
CA (1) CA1077512A (fr)
DE (1) DE2618246C3 (fr)
FR (1) FR2308650A1 (fr)
GB (1) GB1551952A (fr)
IT (1) IT1058205B (fr)
SE (1) SE427561B (fr)
SU (1) SU639457A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427301A1 (fr) * 1978-05-30 1979-12-28 Dow Corning Nouveau procede de preparation de carbure de silicium
EP0051855A1 (fr) * 1980-11-11 1982-05-19 Ube Industries, Ltd. Méthode de préparation de polycarbosilanes
EP0152704A2 (fr) * 1984-02-10 1985-08-28 Minnesota Mining And Manufacturing Company Polyhydridrosilanes et leur conversion en polymères pyrolysés
FR2617854A1 (fr) * 1987-07-10 1989-01-13 Rhone Poulenc Chimie Composition a base d'un nouveau polycarbosilane, sa preparation et son application a la fabrication de produits et articles ceramiques a base de carbure de silicium

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2009196B (en) * 1977-10-26 1982-04-15 Res Inst For Special Inorganic Polycarbosilane process for its prudiction and its use as material for producing silicon carbide
JPS54101525A (en) * 1978-01-27 1979-08-10 Tokai Konetsu Kogyo Kk Method of making heater of silicon carbide
JPS6054906B2 (ja) * 1978-01-31 1985-12-02 財団法人特殊無機材料研究所 セラミツクス焼結成形体の製造法
JPS554040A (en) * 1978-06-26 1980-01-12 Hitachi Ltd Photoconductive material
US4310651A (en) * 1979-03-26 1982-01-12 Dow Corning Corporation Method for preparing silicon carbide
JPS5671642U (fr) * 1979-11-02 1981-06-12
DE3070473D1 (en) * 1979-11-21 1985-05-15 Ube Industries Polymetallocarbosilane, process for its production and shaped articles of inorganic carbide derived therefrom
JPS5674127A (en) * 1979-11-22 1981-06-19 Mitsubishi Chem Ind Ltd Production of organosilicon polymer
US4260780A (en) * 1979-11-27 1981-04-07 The United States Of America As Represented By The Secretary Of The Air Force Phenylmethylpolysilane polymers and process for their preparation
JPS56147827A (en) * 1980-04-17 1981-11-17 Seishi Yajima Organometallic polymer and its preparation
US4298559A (en) * 1980-07-23 1981-11-03 Dow Corning Corporation High yield silicon carbide from alkylated or arylated pre-ceramic polymers
USRE31447E (en) * 1980-07-23 1983-11-22 Dow Corning Corporation High yield silicon carbide pre-ceramic polymers
US4298558A (en) * 1980-07-23 1981-11-03 Dow Corning Corporation High yield silicon carbide pre-ceramic polymers
US4310482A (en) * 1980-07-23 1982-01-12 Dow Corning Corporation High yield silicon carbide pre-polymers
US4310481A (en) * 1980-07-23 1982-01-12 Dow Corning Corporation High yield silicon carbide pre-ceramic polymers
US4314956A (en) * 1980-07-23 1982-02-09 Dow Corning Corporation High yield silicon carbide pre-ceramic polymers
US4291167A (en) * 1980-07-28 1981-09-22 Nalco Chemical Company Preparation of tetramethyldisilane from 1,2-tetramethyldichlorodisilane
US4414403A (en) * 1980-11-21 1983-11-08 Union Carbide Corporation Branched polycarbosilanes and their use in the production of silicon carbide
CA1167216A (fr) * 1980-12-18 1984-05-15 Kiyohito Okamura Fibres inorganiques sans fin, et methode de production connexe
US4324901A (en) * 1981-04-29 1982-04-13 Wisconsin Alumni Research Foundation Soluble polysilastyrene and method for preparation
US4590253A (en) * 1981-08-26 1986-05-20 Kurosaki Refractoris Co., Ltd. Organosilicon polymer and process for production thereof
DE3136786A1 (de) * 1981-09-16 1983-04-07 Kurosaki Refractories Co., Ltd., Kitakyushu, Fukuoka "siliciumorganisches polymeres und verfahren zu dessen herstellung"
US4497787A (en) * 1982-03-23 1985-02-05 Union Carbide Corporation Branched polycarbosilanes and their use in the production of silicon carbide
JPS59174575A (ja) * 1983-03-18 1984-10-03 日本曹達株式会社 炭化ケイ素成形体の製造方法
US4472591A (en) * 1983-03-28 1984-09-18 Union Carbide Corporation Hydrosilyl-modified polycarbosilane precursors for silicon carbide
US4608242A (en) * 1983-03-28 1986-08-26 Union Carbide Corporation Hydrosilyl-modified polycarbosilane precursors for silicon carbide
US4783516A (en) * 1983-03-31 1988-11-08 Union Carbide Corporation Polysilane precursors containing olefinic groups for silicon carbide
JPS60120725A (ja) * 1983-12-05 1985-06-28 Shin Etsu Chem Co Ltd 有機金属共重合体およびその製造方法
US4587205A (en) * 1984-04-05 1986-05-06 The United States Of America As Represented By The United States Department Of Energy Method of using polysilane positive photoresist materials
US4588801A (en) * 1984-04-05 1986-05-13 The United States Of America As Represented By The United States Department Of Energy Polysilane positive photoresist materials and methods for their use
US4631179A (en) * 1985-05-28 1986-12-23 Ethyl Corporation Process for the production of silicon carbide by the pyrolysis of a polycarbosilane polymer
EP0212485A3 (fr) * 1985-08-16 1988-06-15 Teijin Limited Procédé de fabrication d'objets façonnés en carbure de silice
US4879334A (en) * 1986-03-11 1989-11-07 The Foundation: The Research Institute For Special Inorganic Materials Organopolyarylsilanes, process for manufacturing the same and fibers comprising the same
US4737552A (en) * 1986-06-30 1988-04-12 Dow Corning Corporation Ceramic materials from polycarbosilanes
US4820788A (en) * 1986-10-31 1989-04-11 John M. Zeigler Poly(silyl silane)homo and copolymers
US5039593A (en) * 1986-10-31 1991-08-13 Zeigler John K Poly(silyl silane) homo and copolymers
GB8629593D0 (en) * 1986-12-11 1987-01-21 Dow Corning Ltd Polysilanes
US4847027A (en) * 1987-07-06 1989-07-11 Dow Corning Corporation Infusible preceramic polymers via nitric oxide treatment
US4761458A (en) * 1987-08-17 1988-08-02 Dow Corning Corporation Preceramic polycarbosilane derivatives
US4800221A (en) * 1987-08-25 1989-01-24 Dow Corning Corporation Silicon carbide preceramic polymers
US4942011A (en) * 1988-05-03 1990-07-17 E. I. Du Pont De Nemours And Company Process for preparing silicon carbide fibers
US4897229A (en) * 1988-10-12 1990-01-30 Teijin Limited Process for producing a shaped silicon carbide-based ceramic article
US4873353A (en) * 1989-02-06 1989-10-10 Ethyl Corporation Preceramic compositions and ceramic products
US5013609A (en) * 1989-02-06 1991-05-07 Ethyl Corporation Ceramic products derived from polycarbosilanes and boroxines
US5247028A (en) * 1989-06-01 1993-09-21 Kali-Chemie Ag Halogenated polycarbosilanes and processes for preparing them
US5223461A (en) * 1989-06-05 1993-06-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ceramic silicon-boron-carhon fibers from organic silicon-boron-polymers
US5071600A (en) * 1990-01-16 1991-12-10 Dow Corning Corporation Preparation of substantially crystalline silicon carbide fibers from polycarbosilane
US5051215A (en) * 1990-03-21 1991-09-24 Dow Corning Corporation Curing preceramic polymers by exposure to nitrogen dioxide
US5292830A (en) * 1991-06-20 1994-03-08 Tonen Corporation Thermosetting copolymers, silicon carbide-based fiber and processes for producing same
US5863848A (en) * 1991-09-27 1999-01-26 Dow Corning Corporation Preparation of substantially crystalline silicon carbide fibers from borosilazanes
US5171722A (en) * 1991-10-09 1992-12-15 University Of Florida SiC fibers having low oxygen content and methods of preparation
JP2725535B2 (ja) * 1992-07-30 1998-03-11 信越化学工業株式会社 両末端ヒドロポリシランの製造方法
GB2319022B (en) * 1992-12-22 1998-09-02 Dow Corning Preparation of substantionally crystalline silicon carbide fibers from borosilazanes
DE4405603A1 (de) * 1994-02-22 1995-08-24 Solvay Deutschland Verfahren zur Herstellung von sauerstofffreien bzw. sauerstoffarmen hochtemperaturbeständigen Siliciumcarbidformkörpern
US6146559A (en) 1994-07-28 2000-11-14 Dow Corning Corporation Preparation of high density titanium diboride ceramics with preceramic polymer binders
US5449646A (en) 1994-07-29 1995-09-12 Dow Corning Corporation Preparation of high density zirconium diboride ceramics with preceramic polymer binders
CA2154216A1 (fr) 1994-08-01 1996-02-02 Gregg Alan Zank Preparation de ceramiques haute densite de carbure de zirconium a liants polymeriques preceramiques
US5811564A (en) * 1997-12-17 1998-09-22 Dow Corning Corporation Polycarbosilane hydroxides and methods for their preparation
US6162743A (en) * 1998-02-10 2000-12-19 Chu; Cheng-Jye Low dielectric constant film and method thereof
US20060004169A1 (en) * 2003-01-10 2006-01-05 Sherwood Walter J Jr Ceramic-forming polymer material
KR100515239B1 (ko) * 2003-05-22 2005-09-21 주식회사 데크 제올라이트를 촉매로 사용한 폴리카보실란의 제조 방법
US7879696B2 (en) * 2003-07-08 2011-02-01 Kovio, Inc. Compositions and methods for forming a semiconducting and/or silicon-containing film, and structures formed therefrom
US7498015B1 (en) 2004-02-27 2009-03-03 Kovio, Inc. Method of making silane compositions
US7476791B2 (en) * 2004-04-29 2009-01-13 Rohrbacher Technologies, Llc Organosilane surface treated musical instrument strings and method for making the same
US7485691B1 (en) 2004-10-08 2009-02-03 Kovio, Inc Polysilane compositions, methods for their synthesis and films formed therefrom
JP2006152063A (ja) * 2004-11-26 2006-06-15 Jsr Corp 新規ポリカルボシランおよびその製造方法、膜形成用組成物、ならびに膜およびその形成方法
KR100776251B1 (ko) 2006-02-23 2007-11-13 요업기술원 다단계 반응공정을 이용한 폴리페닐카보실란의 제조 방법및 그에 의해 제조되는 폴리페닐카보실란
WO2007144453A1 (fr) * 2006-06-13 2007-12-21 Braggone Oy Compositions de polymère de carbosilane pour revêtements anti-réfléchissants
US8092867B2 (en) 2006-10-06 2012-01-10 Kovio, Inc. Silicon polymers, methods of polymerizing silicon compounds, and methods of forming thin films from such silicon polymers
KR20100089852A (ko) * 2007-11-20 2010-08-12 다우 코닝 코포레이션 물품과 상기 물품을 제조하는 방법
KR20100130612A (ko) * 2008-04-02 2010-12-13 제이에스알 가부시끼가이샤 규소 함유 중합체를 포함하는 조성물 및 그의 경화물
KR100968803B1 (ko) * 2008-06-24 2010-07-08 주식회사 티씨케이 폴리카르보실란 및 그 제조방법
TW201016909A (en) * 2008-08-29 2010-05-01 Dow Corning Article formed from electrospinning a dispersion
WO2010025140A2 (fr) * 2008-08-29 2010-03-04 Dow Corning Corporation Particules métallisées formées à partir d'une dispersion
JP2012501290A (ja) * 2008-08-29 2012-01-19 ダウ コーニング コーポレーション ナノ粒子を含む繊維およびナノ粒子を製造する方法
CN104086588B (zh) * 2009-04-13 2018-01-09 日本曹达株式会社 环状硅烷化合物和/或环状碳硅烷化合物的制备方法
EP2433981A4 (fr) 2009-05-22 2014-10-01 Lintec Corp Objet moulé, son procédé de fabrication, élément pour un dispositif électronique et dispositif électronique
TW201129665A (en) * 2009-09-25 2011-09-01 Ferrotec Usa Corp High strength bonding and coating mixture
US8431189B2 (en) 2009-12-22 2013-04-30 Korea University Research And Business Foundation Carbon nanotube-nanofiber composite structure
DE102010007780A1 (de) 2010-02-12 2011-08-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 80686 Spritzgießverfahren für Kondensationsharze und Vorrichtung für das Verfahren
TWI552883B (zh) 2011-07-25 2016-10-11 Lintec Corp Gas barrier film laminates and electronic components
JP5988989B2 (ja) 2011-11-04 2016-09-07 リンテック株式会社 ガスバリアフィルム及びその製造方法、ガスバリアフィルム積層体、電子デバイス用部材、並びに電子デバイス
WO2013141318A1 (fr) 2012-03-22 2013-09-26 リンテック株式会社 Stratifié conducteur transparent et dispositif ou module électronique
DE102012221669A1 (de) * 2012-11-27 2014-05-28 Evonik Industries Ag Verfahren zum Herstellen kohlenstoffhaltiger Hydridosilane
JP2019034993A (ja) * 2017-08-10 2019-03-07 メルク、パテント、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツングMerck Patent GmbH ポリカルボシランを含んでなるシリコンカーバイド質膜形成組成物、およびそれを用いたシリコンカーバイド質膜の製造方法
JP7122833B2 (ja) * 2018-02-08 2022-08-22 株式会社Ihiエアロスペース 炭化ケイ素繊維の製造方法
WO2020138206A1 (fr) 2018-12-27 2020-07-02 リンテック株式会社 Stratifié doté de propriétés barrière au gaz
KR102572915B1 (ko) * 2019-04-08 2023-09-01 메르크 파텐트 게엠베하 블록 공중합체를 포함하는 조성물 및 이를 사용하는 실리카질 막의 제조방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850514A (en) * 1955-10-25 1958-09-02 Du Pont Organometalloids
US3422039A (en) * 1965-06-16 1969-01-14 Inst Neftechimicheskogo Sintez Method for producing silylmethylene polymer(elastomer)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427301A1 (fr) * 1978-05-30 1979-12-28 Dow Corning Nouveau procede de preparation de carbure de silicium
EP0051855A1 (fr) * 1980-11-11 1982-05-19 Ube Industries, Ltd. Méthode de préparation de polycarbosilanes
EP0152704A2 (fr) * 1984-02-10 1985-08-28 Minnesota Mining And Manufacturing Company Polyhydridrosilanes et leur conversion en polymères pyrolysés
EP0152704A3 (en) * 1984-02-10 1985-11-27 Minnesota Mining And Manufacturing Company Polyhydridosilanes and their conversion to pyropolymers
FR2617854A1 (fr) * 1987-07-10 1989-01-13 Rhone Poulenc Chimie Composition a base d'un nouveau polycarbosilane, sa preparation et son application a la fabrication de produits et articles ceramiques a base de carbure de silicium
EP0300862A2 (fr) * 1987-07-10 1989-01-25 Rhone-Poulenc Chimie Composition à base d'un nouveau polycarbosilane, sa préparation et son application à la fabrication de produits et articles céramiques à base de carbure de silicium
EP0300862A3 (fr) * 1987-07-10 1989-02-08 Rhone-Poulenc Chimie Composition à base d'un nouveau polycarbosilane, sa préparation et son application à la fabrication de produits et articles céramiques à base de carbure de silicium

Also Published As

Publication number Publication date
FR2308650B1 (fr) 1979-04-20
SE7604700L (sv) 1976-10-27
US4052430A (en) 1977-10-04
GB1551952A (en) 1979-09-05
DE2618246C3 (de) 1981-10-15
SU639457A3 (ru) 1978-12-25
JPS51126300A (en) 1976-11-04
DE2618246B2 (de) 1981-02-19
JPS5726527B2 (fr) 1982-06-04
CA1077512A (fr) 1980-05-13
IT1058205B (it) 1982-04-10
SE427561B (sv) 1983-04-18
DE2618246A1 (de) 1976-11-11

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