DE657078C - Insulating molding compound for the production of clamping pieces or the like. Electrical insulating bodies - Google Patents

Insulating molding compound for the production of clamping pieces or the like. Electrical insulating bodies

Info

Publication number
DE657078C
DE657078C DES117295D DES0117295D DE657078C DE 657078 C DE657078 C DE 657078C DE S117295 D DES117295 D DE S117295D DE S0117295 D DES0117295 D DE S0117295D DE 657078 C DE657078 C DE 657078C
Authority
DE
Germany
Prior art keywords
molding compound
production
clamping pieces
insulating
bodies
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.)
Expired
Application number
DES117295D
Other languages
German (de)
Inventor
Hans Ritter
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 Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
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 Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES117295D priority Critical patent/DE657078C/en
Application granted granted Critical
Publication of DE657078C publication Critical patent/DE657078C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L31/00—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 an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
    • C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L99/00—Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups C08L89/00 - C08L97/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Insulating Bodies (AREA)

Description

Isolierpreßmasse für die Herstellung von Klemmstücken o. dgl. elektrischen Isolierkörpern Preßmassen aus Hartpech, Asbestmehl und Asbestfasern haben sich -bisher für die Herstellung von Zählerklemmstücken :o. dgl. bewährt. Die Erfindung hat die Aufgabe, die, vom Ausland stammenden Rohstoffe Asbestfaser und Asbestmehl ohne Einbuße der gün; stigen Festigkeitseigenschaften der Preßmasse durch einheimische Mineralwolle, z. B. Schlakkenwolle, , zu ersetzen.Insulating molding compound for the production of clamping pieces o. The like. Electrical Insulating bodies molding compounds made of hard pitch, asbestos powder and asbestos fibers have been used so far for the production of meter clamping pieces: o. Proven. The invention has the Task, the raw materials asbestos fiber and asbestos flour from abroad without loss the green; constant strength properties of the molding compound due to local mineral wool, z. B. slag wool, to replace.

Erfindungsgemäß enthält die Preßmasse neben Hartpech, Mineralwolle und anderem Füllstoff, z. B. Kaolin, noch einen Zusatz eines polymerisierten Vinylacetats, vorzugsweise in Höhe von 3 bis 5 %. Gerade diese Beimengung des Vinylacetats ergibt eins -#vesentliche Erhöhung der Festigkeit der aus Hartpech und Mineralvolle hergestellten Preß.-stücke, die ohne diese Beimengung hinsicht; lieh der Festigkeit den Hartp,echasbiestpreß; stücken stark unterlegen sind. Der Zusatz ergibt eine Steigerung der Biege- und Schlagfestigkeit von etwa 3o bis 35 %: Die Preßmasse wird beispielsweise folgendermaßen hergestellt: Das Hartpech wird bei :einer Temperatur von etwa 16o° geschmolzen. Der Schmelze wird das Vinylacetat in Pulver-oder Brockenform zugegeben und nach genügender Durchmischung meinem beheizten Rührwerk o. dgl. die Minerahvolle und unter Umständen noch andere Füllstoffe beigegeben. Nach weiterer Durchmischung wird das Gemisch in Form von Platten oder Stangen ausgewalzt und dann in der üblichen Weise weiterverarbeitet.According to the invention, the molding compound contains not only hard pitch, but also mineral wool and other filler, e.g. B. kaolin, another addition of a polymerized vinyl acetate, preferably in the amount of 3 to 5%. It is precisely this admixture of vinyl acetate that results one - # substantial increase in the strength of those made from hard pitch and mineral solids Pressed pieces, which can be viewed without this admixture; lent the firmness the hard, echasbiestpressß; pieces are strongly inferior. The addition results in an increase in the bending and Impact strength of about 30 to 35%: The molding compound is, for example, as follows Manufactured: The hard pitch is melted at: a temperature of around 160 °. The vinyl acetate is added to the melt in powder or lump form and afterwards sufficient mixing my heated agitator o. the like. the Minerahvolle and other fillers may be added. After further mixing, becomes The mixture is rolled out in the form of plates or bars and then in the usual way Way processed.

Claims (1)

PATENTANSPRUCI3: Isollerpreßmasse für die Herstellungvon Klemmstücken o. dgl. elektrischen I.solierkörp:ern, dadurch ,gekennzeichnet, daß sie außer Hartpech und Mineralwolle o. dgl. einen Zusatz von polymerisiertem Vinylacetat, vorzugsweise in Höhe von etwa 3 bis 5 0%, enthält.PATENT claim 3: Isoller molding compound for the production of clamping pieces o. the like. Electrical I.solierkkörper: ern, characterized in that, in addition to hard pitch and mineral wool or the like, an addition of polymerized vinyl acetate, preferably in the amount of about 3 to 50%.
DES117295D 1935-02-20 1935-02-20 Insulating molding compound for the production of clamping pieces or the like. Electrical insulating bodies Expired DE657078C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES117295D DE657078C (en) 1935-02-20 1935-02-20 Insulating molding compound for the production of clamping pieces or the like. Electrical insulating bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES117295D DE657078C (en) 1935-02-20 1935-02-20 Insulating molding compound for the production of clamping pieces or the like. Electrical insulating bodies

Publications (1)

Publication Number Publication Date
DE657078C true DE657078C (en) 1938-02-23

Family

ID=7534186

Family Applications (1)

Application Number Title Priority Date Filing Date
DES117295D Expired DE657078C (en) 1935-02-20 1935-02-20 Insulating molding compound for the production of clamping pieces or the like. Electrical insulating bodies

Country Status (1)

Country Link
DE (1) DE657078C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757293C (en) * 1939-07-18 1951-11-08 Kohle Und Eisenforschung G M B Process for the production of plastic masses from coal tar products and polyvinyl compounds
DE752948C (en) * 1939-02-28 1952-11-10 Ig Farbenindustrie Ag Temperature-resistant, bituminous, insulating protective film providing coating agent
DE899415C (en) * 1938-03-31 1953-12-10 Eisenwerke Gelsenkirchen A G Process for the production of plastics from coal tar pitches to be fluxed with heavy tea oils

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899415C (en) * 1938-03-31 1953-12-10 Eisenwerke Gelsenkirchen A G Process for the production of plastics from coal tar pitches to be fluxed with heavy tea oils
DE752948C (en) * 1939-02-28 1952-11-10 Ig Farbenindustrie Ag Temperature-resistant, bituminous, insulating protective film providing coating agent
DE757293C (en) * 1939-07-18 1951-11-08 Kohle Und Eisenforschung G M B Process for the production of plastic masses from coal tar products and polyvinyl compounds

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