DE1218331B - Thermal insulation material for vacuum insulation and its manufacturing process - Google Patents

Thermal insulation material for vacuum insulation and its manufacturing process

Info

Publication number
DE1218331B
DE1218331B DEG33943A DEG0033943A DE1218331B DE 1218331 B DE1218331 B DE 1218331B DE G33943 A DEG33943 A DE G33943A DE G0033943 A DEG0033943 A DE G0033943A DE 1218331 B DE1218331 B DE 1218331B
Authority
DE
Germany
Prior art keywords
thermal insulation
insulation material
insulation
manufacturing process
vacuum
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.)
Pending
Application number
DEG33943A
Other languages
German (de)
Inventor
Dr-Ing Josef Weishaupt
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Priority to DEG33943A priority Critical patent/DE1218331B/en
Priority to FR917676A priority patent/FR1341110A/en
Priority to GB48756/62A priority patent/GB979951A/en
Priority to US530739A priority patent/US3357587A/en
Publication of DE1218331B publication Critical patent/DE1218331B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
    • A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
    • A47J41/022—Constructional details of the elements forming vacuum space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/08—Means for preventing radiation, e.g. with metal foil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/001—Thermal insulation specially adapted for cryogenic vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0345—Fibres
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • 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
    • Y10T428/31703—Next to cellulosic

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Thermal Insulation (AREA)
  • Laminated Bodies (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

Int. α.:Int. α .:

C04bC04b

Deutsche Kl.: 80 b-9/20 German class: 80 b -9/20

Nummer: 1 218 331Number: 1 218 331

Aktenzeichen: G 33943 VI b/80 bFile number: G 33943 VI b / 80 b

Anmeldetag: 4. Januar 1962Filing date: January 4, 1962

Auslegetag: 2. Juni 1966Opening day: June 2, 1966

Die Erfindung betrifft einen Wärmedämmstoff für Vakuumisolation, bestehend aus vielen Schichten wärmeisolierender und metallischer Materialien.The invention relates to a thermal insulation material for vacuum insulation, consisting of many layers heat-insulating and metallic materials.

Es ist bekannt, hochwertige thermische Isolierungen für verflüssigte, tiefsiedende Gase, insbesondere für flüssigen Wasserstoff und flüssiges Helium, durch Vakuum-Doppelmantel-Behälter zu erreichen, in die ein Wärmedämmstoff eingebracht ist, der aus einer Mischung von Metall- und schlecht wärmeleitendem Nichtmetallpulver besteht. Eine solche Isolierung hat den Nachteil, daß sie sehr schlecht evakuiert werden kann, daß eine Entmischung der Teilchen auftreten kann und daß das Isolationsmaterial auch im Falle von Reparaturen an den Behältern sehr unangenehm zuhandhaben ist.DieseNachteilekönntenteilweisedadurch überwunden werden, daß der Wärmedämmstoff aus abwechselnden Schichten von Metallfolien und Isolierfolien aufgebaut wird. Einem solchen Material haftet aber nach wie vor der Nachteil an, daß es sehr schlecht evakuiert werden kann. Außerdem ist bezüglich der Isolationswirkung noch nicht das Optimum erreicht, da jeweils zwischen zwei reflektierenden Schichten noch eine kaum reflektierende Schicht vorhanden ist.It is known to have high-quality thermal insulation for liquefied, low-boiling gases, in particular for liquid hydrogen and liquid helium, to be reached through vacuum jacketed containers into the a thermal insulation material is introduced, which consists of a mixture of metal and poorly thermally conductive Non-metallic powder. Such insulation has the disadvantage that it is very difficult to evacuate can that a segregation of the particles can occur and that the insulation material also in the case repairs to the containers are very inconvenient be overcome that the thermal insulation material consists of alternating layers of metal foils and Isolation film is built up. Such a material still has the disadvantage that it is very difficult to evacuate. In addition, the insulation effect is not yet the optimum achieved, since there is still a barely reflective layer between two reflective layers is available.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu vermeiden.The invention is based on the object of avoiding these disadvantages.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß mindestens ein Teil der Schichten aus einem in bekannter Weise mit einem Metallüberzug versehenen Isoliermaterial besteht. 'This object is achieved according to the invention in that at least some of the layers consist of one consists in a known manner provided with a metal coating insulating material. '

Die metallische Schicht kann ein- oder beidseitig auf die nichtmetallische, thermisch isolierende Unterlage aufgebracht werden. Dies kann durch bekannte Verfahren geschehen. Eine Möglichkeit ist das Aufdampfen. Die metallische Schicht kann auch chemisch aufgebracht werden, vorzugsweise indem die nichtmetallische Schicht in eine Metallsalzlösung getaucht oder mit einer solchen besprüht wird und anschließend das Metall durch eine Reduktionslösung ausgefällt wird. Es ist weiterhin möglich, die metallische Schicht aufzukaschieren, indem eine feine Suspension des Metalls in einem Lösungsmittel aufgesprüht und das Lösungsmittel anschließend verdampft wird. Bei den letztgenannten Verfahren ist anschließend ein Trocknungsprozeß notwendig, bevor die Schichten aufeinandergelegt und als Isoliermaterial verwendet werden.The metallic layer can be on one or both sides of the non-metallic, thermally insulating base be applied. This can be done by known methods. One possibility is vapor deposition. The metallic layer can also be applied chemically, preferably by adding the non-metallic Layer is dipped in a metal salt solution or sprayed with such and then the metal is precipitated by a reducing solution. It is still possible to use the metallic layer laminate by spraying a fine suspension of the metal in a solvent and the Solvent is then evaporated. The last-mentioned method is followed by a drying process necessary before the layers are placed on top of one another and used as an insulating material.

Als Metallschicht kommen hauptsächlich Stoffe mit kleiner Strahlungszahl, d. h. hohem Reflexionsvermögen, in Betracht, wie Gold, Silber, Kupfer, Aluminium. Besonders wirksam und auch wirtschaftlich tragbar ist Silber. Die Schichtdicke ist so zu wählen, daß ihre Durchlässigkeit auch für ultrarote Strahlung Wärmedämmstoff für Vakuumisolation und
Verfahren zu seiner HerstellungSubstances with a low radiation number, ie high reflectivity, such as gold, silver, copper, aluminum, are mainly used as the metal layer. Silver is particularly effective and also economically viable. The layer thickness is to be chosen so that its permeability for ultra-red radiation and thermal insulation material for vacuum insulation
Process for its manufacture

Anmelder:Applicant:

Linde Aktiengesellschaft,Linde Aktiengesellschaft,

Wiesbaden, Hildastr. 2-10Wiesbaden, Hildastr. 2-10

Als Erfinder benannt:Named as inventor:

Dr.-Ing. Josef Weishaupt, Pullach (Isartal)Dr.-Ing. Josef Weishaupt, Pullach (Isar Valley)

gering ist, wofür im allgemeinen schon Schichtdicken von 10~4mm ausreichen.is small, for which a layer thickness of 10 ~ 4 mm is generally sufficient.

Als wärmeisolierendes Material können Stoffe mit geringer Wärmeleitzahl, wie Kunststoffolien, Glimmer u. dgl. Verwendung finden.Materials with a low coefficient of thermal conductivity, such as plastic films, mica, can be used as heat-insulating material and the like. Use.

Gemäß einer besonders zweckmäßigen Ausbildung des Erfindungsgedankens können hierfür Faserstoffe, insbesondere Glasfaserpapier, verwendet werden. Die Verwendung des Glasfaserpapiers hat den besonderen Vorteil, daß der entstehende Wärmedämmstoff gasdurchlässig ist und deshalb sehr leicht evakuiert werden kann. Außerdem ist er nicht brennbar und hitzebeständig, was ein Ausheizen der fertig isolierten Behälter zuläßt. Die Dicke des isolierenden Materials soll sehr klein sein. Der mittlere Durchmesser der Fasern soll vorzugsweise weniger als 0,002 mm betragen. According to a particularly expedient embodiment of the inventive concept, fiber materials, especially fiberglass paper can be used. The use of fiberglass paper is special The advantage that the resulting thermal insulation material is gas-permeable and can therefore be evacuated very easily can. In addition, it is non-flammable and heat-resistant, which means that the finished insulated container is burned out allows. The thickness of the insulating material should be very small. The mean diameter of the Fibers should preferably be less than 0.002 mm.

Der Wärmedämmstoff nach der vorliegenden Erfindung weist erhebliche Vorteile auf. Durch die äußerst feine Aufteilung der reflektierenden Flächen bei nur punktförmiger gegenseitiger Berührung der Teilchen ergibt sich eine äußerst geringe Wärmeleitung. Da die Abstände der metallisierten Fasern sehr viel kleiner sind als die Abstände der Folien der bekannten Wärmedämmstoffe, ist die Temperaturdifferenz zwischen benachbarten Strahlungsschutzflächen und damit der Wärmeaustausch wesentlich kleiner. Außerdem läßt sich der Wärmedämmstoff nach der Erfindung leichter an unregelmäßige Behälterformen anpassen. Allgemein ist dessen Herstellung und Verarbeitung sehr viel einfacher. Auch kann die Gleichmäßigkeit der Isolierung über große Flächen verbürgt werden.The thermal insulation material according to the present invention has considerable advantages. Through the extremely fine division of the reflective surfaces with only point-like mutual contact of the Particles result in an extremely low heat conduction. Since the distances between the metallized fibers are very are much smaller than the distances between the foils of the known thermal insulation materials, is the temperature difference between adjacent radiation protection surfaces and thus the heat exchange is much smaller. In addition, the thermal insulation material according to the invention can be more easily attached to irregular container shapes adjust. In general, it is much easier to manufacture and process. Also can the evenness the insulation over large areas can be guaranteed.

609 577/407609 577/407

Der Wärmedämmstoff nach der vorliegenden Erfindung läßt sich nicht nur für die Isolation von Flüssigkeitsbehältern, sondern auch für die Isolation des Tieftemperaturteils von Wasserstoff- oder Heliumverflüssigern sowie für Kühlgeräte und Tdeftemperaturmeßeinrichtungen anwenden.The thermal insulation material according to the present invention can not only be used for the insulation of liquid containers, but also for the insulation of the low-temperature part of hydrogen or helium liquefiers as well as for cooling devices and low temperature measuring devices.

Zur Unterbindung der metallischen Wärmeleitung in der Vielschichtisolierung können gegebenenfalls abwechselnd eine oder mehrere Lagen metallisierter Folien und eine oder mehrere Lagen nichtmetallisierter Folien aufeinandergeschichtet werden.To prevent the metallic heat conduction in the multilayer insulation, if necessary alternating one or more layers of metallized foils and one or more layers of non-metallized films Foils are stacked on top of one another.

Für die Befestigung der Isolierung können Metallbandschellen oder ein Netzwerk aus Draht oder Kunststoff oder Textilf asern verwendet werden.For the fastening of the insulation you can use metal band clamps or a network of wire or Plastic or textile fibers can be used.

Zur Aufrechterhaltung oder Verbesserung des Vakuums innerhalb der mit dem Wärmedämmstoff ausgefüllten Isolierung können Adsorptionsmittel in oder unter die dem Tieftemperaturbehälter zunächst liegenden Isolationsschichten eingelagert werden.To maintain or improve the vacuum within the filled with the thermal insulation material Insulation can adsorbents in or under the cryogenic container initially Insulation layers are stored.

Claims (3)

Patentansprüche:Patent claims: 1. Wärmedämmstoff für Vakuumisolation, bestehend aus vielen Schichten wärmeisolierender und metallischer Materialien, dadurch gekennzeichnet, daß mindestens ein Teil der Schichten aus einem in bekannter Weise mit einem Metallüberzug versehenen Isoliermaterial besteht.1. Thermal insulation material for vacuum insulation, consisting of many layers of heat insulating and metallic materials, characterized in that at least some of the layers consist of one in a known manner an insulating material provided with a metal coating. 2. Wärmedämmstoff nach Anspruch 1, dadurch gekennzeichnet, daß das wärmeisolierende Material aus Glasfaserpapier besteht.2. Thermal insulation material according to claim 1, characterized in that the heat insulating Material consists of fiberglass paper. 3.'Wärmedämmstoff nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß als Metallschicht Au, Ag, Cu, Al od. dgl. verwendet wird.3.'Wärmedämmstoff according to claims 1 and 2, characterized in that the metal layer Au, Ag, Cu, Al or the like is used. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 963 387.Documents considered: German Patent No. 963 387. 609 577/407 5.66 © Bundesdruckerei Berlin609 577/407 5.66 © Bundesdruckerei Berlin
DEG33943A 1962-01-04 1962-01-04 Thermal insulation material for vacuum insulation and its manufacturing process Pending DE1218331B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEG33943A DE1218331B (en) 1962-01-04 1962-01-04 Thermal insulation material for vacuum insulation and its manufacturing process
FR917676A FR1341110A (en) 1962-01-04 1962-12-05 Thermal insulation, in particular for vacuum insulation and method for its manufacture, as well as a container or the like provided with an insulation conforming or similar to the preceding
GB48756/62A GB979951A (en) 1962-01-04 1962-12-28 Improvements in or relating to heat insulating material
US530739A US3357587A (en) 1962-01-04 1965-11-12 Thermal insulation suitable for vacuum bottles and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG33943A DE1218331B (en) 1962-01-04 1962-01-04 Thermal insulation material for vacuum insulation and its manufacturing process

Publications (1)

Publication Number Publication Date
DE1218331B true DE1218331B (en) 1966-06-02

Family

ID=7124810

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG33943A Pending DE1218331B (en) 1962-01-04 1962-01-04 Thermal insulation material for vacuum insulation and its manufacturing process

Country Status (3)

Country Link
US (1) US3357587A (en)
DE (1) DE1218331B (en)
GB (1) GB979951A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3705440A1 (en) * 1987-02-20 1988-09-01 Man Technologie Gmbh HEAT INSULATION FOR HIGH TEMPERATURES
DE4002131A1 (en) * 1990-01-25 1991-08-01 Man Technologie Gmbh High temp. resistant reflector foil - comprises highly reflective precious metal coating on ceramic support with IR-permeable stabilising layer on coating

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044911A (en) * 1973-07-13 1977-08-30 U.S. Philips Corporation Heat insulation system
DE3429151A1 (en) * 1984-08-08 1986-02-20 Brown, Boveri & Cie Ag, 6800 Mannheim INSULATION DEVICE
FR2862122B1 (en) * 2003-11-10 2010-12-17 Pcx THERMAL INSULATING MATERIAL
FR2930623B1 (en) * 2008-04-29 2012-12-28 Saint Gobain Isover PRODUCT FOR THERMAL INSULATION

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963387C (en) * 1961-06-20 1957-05-09 Gen Electric Thermal insulation body

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2357851A (en) * 1940-12-11 1944-09-12 Scheyer Emanuel Heat reflective material
US2616165A (en) * 1947-01-18 1952-11-04 Everett D Mccurdy Electrode for electrolytic devices and methods of making same
US2731046A (en) * 1951-10-01 1956-01-17 Firestone Tire & Rubber Co Tow target
US2630620A (en) * 1952-09-29 1953-03-10 Henry J Rand Coated fabric
US2822509A (en) * 1953-05-06 1958-02-04 David R M Harvey Adhesive plaster
US2814162A (en) * 1954-06-25 1957-11-26 Ohio Commw Eng Co Apparatus for production of metallized and bonded blown glass fibers
US2921864A (en) * 1954-07-27 1960-01-19 Heberlein Patent Corp Process for metalizing textiles and products therefrom
US2919970A (en) * 1955-05-09 1960-01-05 Owens Corning Fiberglass Corp Method for attenuating and treating glass fibers
US2951771A (en) * 1956-11-05 1960-09-06 Owens Corning Fiberglass Corp Method for continuously fabricating an impervious metal coated fibrous glass sheet
US3241702A (en) * 1959-04-13 1966-03-22 Union Carbide Corp Insulation construction for cryogenic containers
US3009601A (en) * 1959-07-02 1961-11-21 Union Carbide Corp Thermal insulation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963387C (en) * 1961-06-20 1957-05-09 Gen Electric Thermal insulation body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3705440A1 (en) * 1987-02-20 1988-09-01 Man Technologie Gmbh HEAT INSULATION FOR HIGH TEMPERATURES
DE4002131A1 (en) * 1990-01-25 1991-08-01 Man Technologie Gmbh High temp. resistant reflector foil - comprises highly reflective precious metal coating on ceramic support with IR-permeable stabilising layer on coating

Also Published As

Publication number Publication date
GB979951A (en) 1965-01-06
US3357587A (en) 1967-12-12

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