Stabilised crosslinked ethylene! (co)polymer cable insulation - admixed with soln. contg. liq. peroxide, 2,2'-thio-bis-4-methyl-6-tert. butyl-phenol and opt. voltage-stabiliser

Stabilised crosslinked articles, esp. ethylene (co)polymer cable insulation compsns., are produced by adding a soln. of liq. peroxide (I), and 2,2'-thio-bis-(4-methyl- 6-tert.butyl-phenol) (II), as a solid heat-stabiliser melting below 80 deg.C, to the polymer or polymer mixt. during the final...

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Bibliographische Detailangaben
Hauptverfasser:	WARTUSCH,JOHANN, MAYER,HANS
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOSITIONS BASED THEREON CONDUCTORS ELECTRICITY GENERAL PROCESSES OF COMPOUNDING INSULATORS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Zusammenfassung:	Stabilised crosslinked articles, esp. ethylene (co)polymer cable insulation compsns., are produced by adding a soln. of liq. peroxide (I), and 2,2'-thio-bis-(4-methyl- 6-tert.butyl-phenol) (II), as a solid heat-stabiliser melting below 80 deg.C, to the polymer or polymer mixt. during the final shaping process. The use of the lower-melting (II) obviates crystal-formation at room temp. Unmixing and heat-stabiliser migration are prevented. For use in cable insulation and electrical conductor layers, the soln. can further contain a lio. voltage stabiliser, pref. a phenanthrene-based oil or a liq. keto- and/or hydroxyl cpd. (I) is esp. a di-tert.butyl peroxide or a mixt. thereof with a tert. butyl-cumyl peroxide and opt. dicumyl peroxide.