JPS56112950A - Electrically insulating composition - Google Patents

Electrically insulating composition

Info

Publication number
JPS56112950A
JPS56112950A JP1573380A JP1573380A JPS56112950A JP S56112950 A JPS56112950 A JP S56112950A JP 1573380 A JP1573380 A JP 1573380A JP 1573380 A JP1573380 A JP 1573380A JP S56112950 A JPS56112950 A JP S56112950A
Authority
JP
Japan
Prior art keywords
ethylene
propylene
composition
electrically insulating
copolymer
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
JP1573380A
Other languages
Japanese (ja)
Inventor
Shuji Kon
Takeo Shiono
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.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable 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 Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP1573380A priority Critical patent/JPS56112950A/en
Publication of JPS56112950A publication Critical patent/JPS56112950A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Abstract

PURPOSE: To obtain an electrically insulating composition for cable having excellent resistance against water tree formation, by a method in which an ethylene-propylene-diene copolymer of a high ethylene content as a base material is mixed with butyl rubber or polyisoprene rubber and then the mixture is crosslinked by an organic peroxide.
CONSTITUTION: One hundred pts.wt. ethylene-propylene copolymer or an ethylene- propylene-diene ternary copolymer (A), having an ethylene/propylene polymerization ratio of 70:30W90:10, is mixed with 1W7pts.wt. organic peroxide (B), e.g., dicumyl peroxide, etc., and 5W40pts.wt. butyl rubber or polyisobutylene rubber (C) of a molecular weight of 20,000W200,000, preferably 50,000W160,000, to obtain an objective composition.
USE: The composition is mainly used in electric power cables.
COPYRIGHT: (C)1981,JPO&Japio
JP1573380A 1980-02-12 1980-02-12 Electrically insulating composition Pending JPS56112950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1573380A JPS56112950A (en) 1980-02-12 1980-02-12 Electrically insulating composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1573380A JPS56112950A (en) 1980-02-12 1980-02-12 Electrically insulating composition

Publications (1)

Publication Number Publication Date
JPS56112950A true JPS56112950A (en) 1981-09-05

Family

ID=11896961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1573380A Pending JPS56112950A (en) 1980-02-12 1980-02-12 Electrically insulating composition

Country Status (1)

Country Link
JP (1) JPS56112950A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938248A (en) * 1982-08-25 1984-03-02 Idemitsu Petrochem Co Ltd Rubber composition
JP2008521976A (en) * 2004-12-03 2008-06-26 ランクセス・インク. Peroxide curable butyl compound for rubber articles
CN114450336A (en) * 2019-08-05 2022-05-06 埃克森美孚化学专利公司 Propylene-alpha-olefin-diene terpolymer additives for improving rubber tack

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938248A (en) * 1982-08-25 1984-03-02 Idemitsu Petrochem Co Ltd Rubber composition
JPH0126378B2 (en) * 1982-08-25 1989-05-23 Idemitsu Petrochemical Co
JP2008521976A (en) * 2004-12-03 2008-06-26 ランクセス・インク. Peroxide curable butyl compound for rubber articles
CN114450336A (en) * 2019-08-05 2022-05-06 埃克森美孚化学专利公司 Propylene-alpha-olefin-diene terpolymer additives for improving rubber tack
CN114450336B (en) * 2019-08-05 2024-01-09 埃克森美孚化学专利公司 Propylene-alpha-olefin-diene terpolymer additives for improved rubber adhesion

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