DE2634421A1 - Fluorkohlenstoffprimer mit verbesserter kratzfestigkeit - Google Patents

Fluorkohlenstoffprimer mit verbesserter kratzfestigkeit

Info

Publication number
DE2634421A1
DE2634421A1 DE19762634421 DE2634421A DE2634421A1 DE 2634421 A1 DE2634421 A1 DE 2634421A1 DE 19762634421 DE19762634421 DE 19762634421 DE 2634421 A DE2634421 A DE 2634421A DE 2634421 A1 DE2634421 A1 DE 2634421A1
Authority
DE
Germany
Prior art keywords
composition according
bis
polyamic acid
weight
fluorine
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
DE19762634421
Other languages
German (de)
English (en)
Other versions
DE2634421C2 (US20110009641A1-20110113-C00185.png
Inventor
Eustathios Vassiliou
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of DE2634421A1 publication Critical patent/DE2634421A1/de
Application granted granted Critical
Publication of DE2634421C2 publication Critical patent/DE2634421C2/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
    • C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0016—Plasticisers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
    • C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/251—Mica
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/258—Alkali metal or alkaline earth metal or compound thereof
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • Y10T428/31544—Addition polymer is perhalogenated
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31623—Next to polyamide or polyimide
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
DE19762634421 1975-07-31 1976-07-30 Fluorkohlenstoffprimer mit verbesserter kratzfestigkeit Granted DE2634421A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/600,576 US4039713A (en) 1975-07-31 1975-07-31 Fluorocarbon primer having improved scratch resistance

Publications (2)

Publication Number Publication Date
DE2634421A1 true DE2634421A1 (de) 1977-02-10
DE2634421C2 DE2634421C2 (US20110009641A1-20110113-C00185.png) 1987-08-20

Family

ID=24404150

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762634421 Granted DE2634421A1 (de) 1975-07-31 1976-07-30 Fluorkohlenstoffprimer mit verbesserter kratzfestigkeit

Country Status (12)

Country Link
US (1) US4039713A (US20110009641A1-20110113-C00185.png)
JP (1) JPS6035381B2 (US20110009641A1-20110113-C00185.png)
BE (1) BE844760A (US20110009641A1-20110113-C00185.png)
BR (1) BR7604972A (US20110009641A1-20110113-C00185.png)
CA (1) CA1105169A (US20110009641A1-20110113-C00185.png)
DE (1) DE2634421A1 (US20110009641A1-20110113-C00185.png)
FR (1) FR2319694A1 (US20110009641A1-20110113-C00185.png)
GB (1) GB1565843A (US20110009641A1-20110113-C00185.png)
IT (1) IT1067477B (US20110009641A1-20110113-C00185.png)
LU (1) LU75496A1 (US20110009641A1-20110113-C00185.png)
NL (1) NL182002C (US20110009641A1-20110113-C00185.png)
SE (1) SE426501B (US20110009641A1-20110113-C00185.png)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317343A1 (fr) * 1975-07-11 1977-02-04 Du Pont Revetement de polymere fluore possedant une resistance a l'ecaillement amelioree
US4180609A (en) * 1975-07-11 1979-12-25 E. I. Du Pont De Nemours And Company Article coated with fluoropolymer finish with improved scratch resistance
DE2707041C2 (de) * 1977-02-18 1985-06-13 Glyco-Metall-Werke Daelen & Loos Gmbh, 6200 Wiesbaden Verbundwerkstoff mit einer Reib- oder Gleitschicht, sowie Verfahren zur Herstellung solcher Verbundwerkstoffe
US4226646A (en) * 1979-03-26 1980-10-07 E. I. Du Pont De Nemours And Company Process of coating a ferrous metal substrate with an aqueous fluoropolymer coating
JPS6033296B2 (ja) * 1979-04-23 1985-08-02 日本電気ホームエレクトロニクス株式会社 固体電解コンデンサの製造方法
DE2945288C2 (de) * 1979-11-09 1983-01-27 Leipold + Eppich KG, 8502 Zirndorf Silikatischer Überzug für hitzebeständige Gegenstände mit wärmeübertragender Funktion, Verfahren zur Herstellung eines solchen Überzugs und damit versehene Gegenstände
DE3207936A1 (de) * 1982-03-05 1983-09-15 Herberts Gmbh, 5600 Wuppertal Lackierungsverfahren unter verwendung von perlglanzpigmenten
US4770927A (en) * 1983-04-13 1988-09-13 Chemical Fabrics Corporation Reinforced fluoropolymer composite
US5194335A (en) * 1984-04-13 1993-03-16 Chemical Fabrics Corporation Fluoropolymer coating and casting compositions and films derived therefrom
US4610918A (en) * 1984-04-13 1986-09-09 Chemical Fabrics Corporation Novel wear resistant fluoropolymer-containing flexible composites
US4555543A (en) * 1984-04-13 1985-11-26 Chemical Fabrics Corporation Fluoropolymer coating and casting compositions and films derived therefrom
JPS61158630U (US20110009641A1-20110113-C00185.png) * 1985-03-25 1986-10-01
US4800661A (en) * 1986-05-20 1989-01-31 Toshiba Heating Appliances Co., Ltd. Electric iron
JPH10508066A (ja) * 1994-10-31 1998-08-04 イー・アイ・デユポン・ドウ・ヌムール・アンド・カンパニー 非粘着性仕上げ用万能プライマー
US6248435B1 (en) 1998-09-01 2001-06-19 E. I. Du Pont De Nemours And Company Heat transfer release finish
US6365232B1 (en) * 1998-09-23 2002-04-02 Rohr, Inc. Adhesive bond tool having improved release coating for advanced composite and metallic components and method
US8063135B2 (en) * 2003-07-31 2011-11-22 Solvay (Societe Anonyme) Water-based polymer composition and articles made therefrom
DE602004014157D1 (de) * 2003-07-31 2008-07-10 Solvay Wässrige polymerzsuammensetzung und daraus hergestellte gegenstände
US7470453B1 (en) 2005-10-11 2008-12-30 Advanced Flexible Composites, Inc. Method for forming flexible composites using polymer coating materials
US20070282044A1 (en) * 2006-05-31 2007-12-06 Robert John Cavanaugh Concentrated fluoropolymer dispersions stabilized with anionic polyelectrolyte dispersing agents
FR2985215B1 (fr) 2011-12-28 2014-09-19 Saint Gobain Performance Plast Revetements polymeres deposes sur des substrats par des techniques de projection thermique
CN103182808A (zh) 2011-12-28 2013-07-03 圣戈班高功能塑料集团 一种包括含氟聚合物表面层以及非氟聚合物过渡层的多层复合物
WO2014001524A1 (en) 2012-06-29 2014-01-03 Saint-Gobain Performance Plastics Pampus Gmbh Slide bearing comprising a primer system as adhesion promoter
CN104641133B (zh) 2012-09-28 2018-11-06 圣戈班性能塑料帕姆普斯有限公司 具有组合的粘合剂滑动层的免维护滑动轴承

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE820252A (fr) * 1973-09-24 1975-03-24 Compositions de revetement a base de polymeres fluorocarbones contenant des particules de mica

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710266A (en) * 1953-12-21 1955-06-07 Du Pont Polytetrafluoroethylene coating compositions, method of application to substrates, coated substrates, and films
US2825664A (en) * 1954-01-21 1958-03-04 Du Pont Polytetrafluoroethylene coating compositions containing an alkali metal silicate and colloidal silica and articles coated therewith
US2979418A (en) * 1958-03-03 1961-04-11 Minnesota Mining & Mfg Chemically resistant coatings and method for preparation thereof
US2961341A (en) * 1958-04-15 1960-11-22 Minnesota Mining & Mfg Perfluorochloroolefin primer composition, method of coating therewith and article produced thereby
US3087828A (en) * 1961-06-28 1963-04-30 Du Pont Nacreous pigment compositions
US3087829A (en) * 1961-06-28 1963-04-30 Du Pont Micaceous pigment composition
DE1165182B (de) * 1961-06-28 1964-03-12 Du Pont Pigment auf der Basis von durchscheinenden glimmerartigen Schuppen und Verfahren zu dessen Herstellung
US3432511A (en) * 1961-11-07 1969-03-11 Duriron Co Processing of plastic materials
DE1769812B2 (de) * 1964-11-23 1976-06-24 E.I. Du Pont De Nemours And Co., Wilmington, Del. (V.St.A.) Verfahren zur herstellung von ueberzuegen auf formkoerpern durch beschichten mit dispersionen auf basis von polytetrafluoraethylen und zusaetzlichen filmbildnern
US3663728A (en) * 1968-07-25 1972-05-16 Gen Electric Process for producing polyamide acid and polyimides
US3694392A (en) * 1970-12-22 1972-09-26 Du Pont Coating compositions containing fluorocarbon polymer and lithium polysilicate
US3787338A (en) * 1972-02-25 1974-01-22 Gen Electric Aqueous dispersions of finely divided lubricants in polyamide acid

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE820252A (fr) * 1973-09-24 1975-03-24 Compositions de revetement a base de polymeres fluorocarbones contenant des particules de mica

Also Published As

Publication number Publication date
GB1565843A (en) 1980-04-23
FR2319694A1 (fr) 1977-02-25
BR7604972A (pt) 1977-08-09
SE426501B (sv) 1983-01-24
NL182002C (nl) 1987-12-16
IT1067477B (it) 1985-03-16
JPS6035381B2 (ja) 1985-08-14
NL182002B (nl) 1987-07-16
BE844760A (fr) 1977-01-31
NL7608511A (nl) 1977-02-02
JPS5218741A (en) 1977-02-12
FR2319694B1 (US20110009641A1-20110113-C00185.png) 1981-04-30
SE7608572L (sv) 1977-01-31
US4039713A (en) 1977-08-02
CA1105169A (en) 1981-07-14
LU75496A1 (US20110009641A1-20110113-C00185.png) 1977-04-15
DE2634421C2 (US20110009641A1-20110113-C00185.png) 1987-08-20

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