DE1125023B - Heat-resistant insulating layer - Google Patents

Heat-resistant insulating layer

Info

Publication number
DE1125023B
DE1125023B DES57756A DES0057756A DE1125023B DE 1125023 B DE1125023 B DE 1125023B DE S57756 A DES57756 A DE S57756A DE S0057756 A DES0057756 A DE S0057756A DE 1125023 B DE1125023 B DE 1125023B
Authority
DE
Germany
Prior art keywords
heat
insulating layer
diphenylene
resistant insulating
diisopropoxy
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
DES57756A
Other languages
German (de)
Inventor
Dr Dr H C Robert Schwarz
Dr Wilhelm Kuchen
Dr Fritz Weigel
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DES57756A priority Critical patent/DE1125023B/en
Publication of DE1125023B publication Critical patent/DE1125023B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
    • 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
    • C08G18/83—Chemically modified polymers
    • C08G18/837—Chemically modified polymers by silicon containing compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Insulating Materials (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paints Or Removers (AREA)

Description

Hitzebeständige Isolierschicht Es ist bekannt, für die Herstellung von Isolierschichten Umsetzungsprodukte von hydroxylgruppenhaltigen Harzen mit aromatischen Orthokieselsäureestern zu verwenden. Die erhaltenen Produkte sind aber spröde und haben für bestimmte Anwendungszwecke keine befriedigenden Eigenschaften. Dies ist darin begründet, daß die verwendeten aromatischen Orthokieselsäureester als tetrafunktionelle Verbindungen den Vernetzungsgrad bei der Umesterung nur ungenügend beeinflussen lassen.Heat-resistant insulating layer It is known for making of insulating layers Reaction products of resins containing hydroxyl groups with aromatic ones To use orthosilicic acid esters. The products obtained are, however, brittle and do not have satisfactory properties for certain applications. This is based on the fact that the aromatic orthosilicic acid esters used are tetrafunctional Compounds only inadequately influence the degree of crosslinking during transesterification permit.

Damit entstand die Aufgabe, auf der Grundlage von Orthokieselsäureestern ein Produkt darzustellen, das die nachteiligen Eigenschaften des erwähnten Produktes nicht aufweist. Bei Untersuchungen hat es sich herausgestellt, daß der Diphenolrest nicht zur Umesterung neigt und daß bei Verwendung der Kieselsäureester des o,o'-Diphenols genaue Vernetzungsverhältnisse zu erreichen sind. This gave rise to the task on the basis of orthosilicic acid esters to represent a product that has the adverse properties of the mentioned product does not have. Investigations have shown that the diphenol residue does not tend to transesterify and that when using the silicic acid ester of o, o'-diphenol exact cross-linking ratios can be achieved.

Erfindungsgemäß werden zur Herstellung von hitzebeständigen elastischen Isolierschichten für elektrische Zwecke die hitzehärtbaren Umsetzungsprodukte isocyanatmodifizierter Alkydharze in gelöster Form mit o,o '-Diphenylen-diisopropoxy-ortho silikat verwendet. According to the invention for the production of heat-resistant elastic Insulating layers for electrical purposes, the thermosetting reaction products of isocyanate-modified Alkyd resins in dissolved form with o, o '-diphenylene-diisopropoxy-ortho silicate used.

Die Formel des verwendeten o,o'-Diphenylen-diisopropoxy-orthosilikates ist Isopr. -O O-Isopr Si 0 0 Diese Umsetzungsprodukte an sich und deren Herstellungsverfahren sind nicht Gegenstand der Erfindung.The formula of the o, o'-diphenylene-diisopropoxy-orthosilicate used is Isopr. -O O-Isopr Si 0 0 These reaction products per se and their production processes are not the subject of the invention.

Die mit diesem Mischester hergestellten Isolierschichten, z. B. Lackfilme, sind thermisch noch wesentlich stabiler als diejenigen, die unter Verwendung der üblichen Orthoester hergestellt werden. So zeigte bei einer Alterung bei 175"C nach 500 Stunden ein Lackfilm (0,2 mm dick) einen oxydativ bedingten Abdampfverlust von 240/o, während der gleiche Lack mit gleicher prozentualer Zusammensetzung, aber unter Verwendung von Tetraphenylorthosilikat einen Verlust von 350/o ergab. The insulating layers produced with this mixed ester, e.g. B. paint films, are still much more thermally stable than those made using the customary orthoesters are produced. So showed after aging at 175 "C. 500 hours a paint film (0.2 mm thick) an oxidation loss of 240 / o, while the same varnish with the same percentage composition, but using tetraphenyl orthosilicate gave a loss of 350%.

Die unter Verwendung von o,o'-Diphenylen-diisopropoxy-orthosilikat hergestellten Isolierschichten haben neben guten mechanischen, elektrischen und chemischen Eigenschaften auch gleichzeitig und vor allem eine gute Temperaturbeständigkeit bei hohen Temperaturen (175°C). In der Elektrotechnik wird der Mischester besonders vorteilhaft zum Isolieren von elektrischen Leitungen und Spulen verwendet. The one using o, o'-diphenylene-diisopropoxy-orthosilicate produced insulating layers have good mechanical, electrical and chemical properties also at the same time and above all good temperature resistance at high temperatures (175 ° C). The mixed ester becomes special in electrical engineering used advantageously for insulating electrical lines and coils.

Beispiel 480 g eines mit gesättigten Fettsäuren plastifizierten und mit einem stabilisierten Isocyanat modifizierten Alkydharzes werden in 400 g Äthylglykol gelöst und mit 120 g o,o'-Diphenylen-diisopropoxy-orthosilikat durch gutes Rühren vermischt. Mit diesem Lack werden elektrische Spulen imprägniert. Die Aushärtung erfolgt bei 175"C in 6 Stunden. Example 480 g of a plasticized with saturated fatty acids and Alkyd resin modified with a stabilized isocyanate is added to 400 g of ethyl glycol dissolved and with 120 g of o, o'-diphenylene-diisopropoxy-orthosilicate by stirring well mixed. This lacquer is used to impregnate electrical coils. The curing takes place at 175 "C in 6 hours.

Claims (3)

PATENTANSPRÜCHE: 1. Verwendung von hitzehärtbaren Umsetzungsprodukten isocyanatmodifizierter Alkydharze in gelöster Form mit o,o'-Diphenylen-diisopropoxyorthosilikat zur Herstellung von hitzebeständigen, elastischen Isolierschichten für elektrische Zwecke. PATENT CLAIMS: 1. Use of thermosetting reaction products isocyanate-modified alkyd resins in dissolved form with o, o'-diphenylene diisopropoxyorthosilicate for the production of heat-resistant, elastic insulating layers for electrical Purposes. 2. Ausführungsform der Erfindung nach Anspruch 1, dadurch gekennzeichnet, daß 10 bis 400/o und vorzugsweise 200/o o,o'-Diphenylen-diisopropoxy-orthosilikat verwendet werden. 2. Embodiment of the invention according to claim 1, characterized in that that 10 to 400 / o and preferably 200 / o o, o'-diphenylene-diisopropoxy-orthosilicate be used. 3. Ausführungsform der Erfindung nach Anspruch I und 2, dadurch gekennzeichnet, daß die Aushärtung der Isolierschicht bei 175"C erfolgt. 3. Embodiment of the invention according to claim I and 2, characterized in that that the hardening of the insulating layer takes place at 175 "C. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 945 936, 841 362; deutsche Auslegeschrift L 15301 VIIId/2l c (bekanntgemacht am 24. 11. 1955). Considered publications: German Patent Specifications No. 945 936, 841 362; German Auslegeschrift L 15301 VIIId / 2l c (published on November 24, 1955).
DES57756A 1958-04-09 1958-04-09 Heat-resistant insulating layer Pending DE1125023B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES57756A DE1125023B (en) 1958-04-09 1958-04-09 Heat-resistant insulating layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES57756A DE1125023B (en) 1958-04-09 1958-04-09 Heat-resistant insulating layer

Publications (1)

Publication Number Publication Date
DE1125023B true DE1125023B (en) 1962-03-08

Family

ID=7492060

Family Applications (1)

Application Number Title Priority Date Filing Date
DES57756A Pending DE1125023B (en) 1958-04-09 1958-04-09 Heat-resistant insulating layer

Country Status (1)

Country Link
DE (1) DE1125023B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807406A1 (en) * 1978-02-17 1979-08-23 Siemens Ag MULTI-WIRE FLEXIBLE ELECTRICAL CABLE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE841362C (en) * 1948-11-10 1952-06-16 Dow Corning Process for the production of organo-silicone resins
DE945936C (en) * 1952-09-24 1956-07-19 Siemens Ag Process for the production of an electrical insulating material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE841362C (en) * 1948-11-10 1952-06-16 Dow Corning Process for the production of organo-silicone resins
DE945936C (en) * 1952-09-24 1956-07-19 Siemens Ag Process for the production of an electrical insulating material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807406A1 (en) * 1978-02-17 1979-08-23 Siemens Ag MULTI-WIRE FLEXIBLE ELECTRICAL CABLE

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