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JPS5578042A - Rubber composition for electrically insulating material - Google Patents

Rubber composition for electrically insulating material

Info

Publication number
JPS5578042A
JPS5578042A JP15053178A JP15053178A JPS5578042A JP S5578042 A JPS5578042 A JP S5578042A JP 15053178 A JP15053178 A JP 15053178A JP 15053178 A JP15053178 A JP 15053178A JP S5578042 A JPS5578042 A JP S5578042A
Authority
JP
Japan
Prior art keywords
molecular weight
olefin
ethylene
perferably
filler
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.)
Granted
Application number
JP15053178A
Other languages
Japanese (ja)
Other versions
JPS625187B2 (en
Inventor
Yasuhiko Otawa
Hiroichi Kajiura
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries Ltd
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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP15053178A priority Critical patent/JPS5578042A/en
Publication of JPS5578042A publication Critical patent/JPS5578042A/en
Publication of JPS625187B2 publication Critical patent/JPS625187B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: Title composition that is made by adding larger amounts of filler and softening agent than those added to conventional compositions to a specific rubber of ethylene-α-olefin-polyene random terpolymer, thus keeping practical strength and processability and being inexpensive and suitably used for high electric voltage.
CONSTITUTION: To 100 parts by wt. of ethylene-α-olefin-polyene random terpolymer in which (1) the molar ratio of the ethylene unit to the α-olefin unit is 50:50W95:5, (2) the iodine value is 5W50, (3) the intrinsic viscosity in decaline at 135°C is 1W6 dl/g, (4) Q (weight-average molecular weight/number-average molecular weight) is 3W15, (5) the iodine index α1 of the low molecular weight component satisfies the equation: -30 ≤α1≤0, preferably -10≤α1≤-1 and the iodine index α2 of the high molecular weight component satisfies the equation: 0≤α2≤30, perferably 1≤α2≤10, are added 250 or less parts of filler and 100 or less parts of softening agent, perferably process oil and they are kneaded so that the content of the terpolymer rubber becomes 25wt% or less. The specific volume resistance is preferably 1×1014ohm.cm or higher.
COPYRIGHT: (C)1980,JPO&Japio
JP15053178A 1978-12-07 1978-12-07 Rubber composition for electrically insulating material Granted JPS5578042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15053178A JPS5578042A (en) 1978-12-07 1978-12-07 Rubber composition for electrically insulating material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15053178A JPS5578042A (en) 1978-12-07 1978-12-07 Rubber composition for electrically insulating material

Publications (2)

Publication Number Publication Date
JPS5578042A true JPS5578042A (en) 1980-06-12
JPS625187B2 JPS625187B2 (en) 1987-02-03

Family

ID=15498901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15053178A Granted JPS5578042A (en) 1978-12-07 1978-12-07 Rubber composition for electrically insulating material

Country Status (1)

Country Link
JP (1) JPS5578042A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956441A (en) * 1982-09-24 1984-03-31 Hitachi Cable Ltd Semiconductive composition
JPH01211803A (en) * 1988-02-19 1989-08-25 Hitachi Cable Ltd Electric wire/cable
JPH04315701A (en) * 1991-04-12 1992-11-06 Mitsubishi Cable Ind Ltd Radiation resistant cable
US6458894B1 (en) * 1996-09-30 2002-10-01 Mitsui Chemicals, Inc. Rubber modifier of ethylene/α-olefin (/diene) copolymer rubber(s)
JP2019007013A (en) * 2012-09-12 2019-01-17 ダウ グローバル テクノロジーズ エルエルシー Crosslinkable polymer composition, method for making same, and article made therefrom

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956441A (en) * 1982-09-24 1984-03-31 Hitachi Cable Ltd Semiconductive composition
JPH01211803A (en) * 1988-02-19 1989-08-25 Hitachi Cable Ltd Electric wire/cable
JPH04315701A (en) * 1991-04-12 1992-11-06 Mitsubishi Cable Ind Ltd Radiation resistant cable
US6458894B1 (en) * 1996-09-30 2002-10-01 Mitsui Chemicals, Inc. Rubber modifier of ethylene/α-olefin (/diene) copolymer rubber(s)
US6599984B1 (en) 1996-09-30 2003-07-29 Mitsui Chemicals, Inc. Rubber modified with ethylene/α-olefin(/diene) rubber(s)
JP2019007013A (en) * 2012-09-12 2019-01-17 ダウ グローバル テクノロジーズ エルエルシー Crosslinkable polymer composition, method for making same, and article made therefrom

Also Published As

Publication number Publication date
JPS625187B2 (en) 1987-02-03

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