JPS5453281A - Preparing highly foamed polyolefine insulated wire - Google Patents

Preparing highly foamed polyolefine insulated wire

Info

Publication number
JPS5453281A
JPS5453281A JP11786677A JP11786677A JPS5453281A JP S5453281 A JPS5453281 A JP S5453281A JP 11786677 A JP11786677 A JP 11786677A JP 11786677 A JP11786677 A JP 11786677A JP S5453281 A JPS5453281 A JP S5453281A
Authority
JP
Japan
Prior art keywords
polyolefine
core
foaming
insulated wire
highly foamed
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
JP11786677A
Other languages
Japanese (ja)
Other versions
JPS5733810B2 (en
Inventor
Fumio Suzuki
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP11786677A priority Critical patent/JPS5453281A/en
Publication of JPS5453281A publication Critical patent/JPS5453281A/en
Publication of JPS5733810B2 publication Critical patent/JPS5733810B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B29C47/92—

Landscapes

  • Molding Of Porous Articles (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To heighten a mechanical strength with a permittivity lowered as well, by providing an insulating layer, with its foaming degree made high at the core side and continuously getting lower toward outer surfaces, in the highly foamed polyolefine insulated wire. CONSTITUTION:With a highly foaming polyolefine material extruded to the low pressure zone to be coated through a cohesive layer on the core, a temperature of the core during the time until a completion of the polyolefine foaming will be maintained at above a temperature of the low pressure zone. In this way, a foaming degree of the polyolefine will be made high at near the core and successively getting lower as it goes approaching outer surfaces.
JP11786677A 1977-10-03 1977-10-03 Preparing highly foamed polyolefine insulated wire Granted JPS5453281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11786677A JPS5453281A (en) 1977-10-03 1977-10-03 Preparing highly foamed polyolefine insulated wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11786677A JPS5453281A (en) 1977-10-03 1977-10-03 Preparing highly foamed polyolefine insulated wire

Publications (2)

Publication Number Publication Date
JPS5453281A true JPS5453281A (en) 1979-04-26
JPS5733810B2 JPS5733810B2 (en) 1982-07-19

Family

ID=14722221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11786677A Granted JPS5453281A (en) 1977-10-03 1977-10-03 Preparing highly foamed polyolefine insulated wire

Country Status (1)

Country Link
JP (1) JPS5453281A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH076311U (en) * 1993-06-30 1995-01-31 峯則 千福地 Ground-floor wind window

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5127017U (en) * 1974-08-21 1976-02-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5127017U (en) * 1974-08-21 1976-02-27

Also Published As

Publication number Publication date
JPS5733810B2 (en) 1982-07-19

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