JPS5466498A - Polypropylene laminated paper for insulation - Google Patents

Polypropylene laminated paper for insulation

Info

Publication number
JPS5466498A
JPS5466498A JP13225877A JP13225877A JPS5466498A JP S5466498 A JPS5466498 A JP S5466498A JP 13225877 A JP13225877 A JP 13225877A JP 13225877 A JP13225877 A JP 13225877A JP S5466498 A JPS5466498 A JP S5466498A
Authority
JP
Japan
Prior art keywords
paper
insulating oil
thickness
polypropylene film
swelling
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
JP13225877A
Other languages
Japanese (ja)
Inventor
Hiroshi Kubo
Toshihiro Miyazaki
Shinji Matsuda
Hidemitsu Kuwabara
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
Tomoegawa Co Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Tomoegawa Paper Co 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, Tomoegawa Paper Co Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP13225877A priority Critical patent/JPS5466498A/en
Publication of JPS5466498A publication Critical patent/JPS5466498A/en
Pending legal-status Critical Current

Links

Landscapes

  • Organic Insulating Materials (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)

Abstract

PURPOSE: To prevent swelling by insulating oil and also to reduce the increase of thickness by giving uneven surface to polypropylene-laminated paper comprising a fiber paper and a polypropylene film layer.
CONSTITUTION: An electrically insulated laminate paper is obtained by integrally adhering a polypropylene film whose surface is provided with an uneven surface by an embossing processing with a fiber paper (e.g., a low density kraft paper. The uneven form is made so as to be given on the surface of polypropylene film which is on the side of no contact with the fiber paper, by a method in which the adhesion of both fiber paper and polypropylene film is made with an uneven-surfaced roll, for example. Since this laminate paper is greatly reduced its thickness by the early drying process, the final augumentation of thickness due to the swelling of insulating oil is remarkably small even if the thickness is increased by swelling by insulating oil. Thus, it is possible to keep the passing of insulating oil better and also to prevent the occurrence of wrinkles.
COPYRIGHT: (C)1979,JPO&Japio
JP13225877A 1977-11-04 1977-11-04 Polypropylene laminated paper for insulation Pending JPS5466498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13225877A JPS5466498A (en) 1977-11-04 1977-11-04 Polypropylene laminated paper for insulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13225877A JPS5466498A (en) 1977-11-04 1977-11-04 Polypropylene laminated paper for insulation

Publications (1)

Publication Number Publication Date
JPS5466498A true JPS5466498A (en) 1979-05-29

Family

ID=15077060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13225877A Pending JPS5466498A (en) 1977-11-04 1977-11-04 Polypropylene laminated paper for insulation

Country Status (1)

Country Link
JP (1) JPS5466498A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174811A (en) * 1981-04-20 1982-10-27 Fujikura Ltd Laminated electric insulator
EP0843320A3 (en) * 1996-11-18 1998-12-09 Tomoegawa Paper Co. Ltd. Electrical insulating laminated paper, process for producing the same and oil-impregnated power cable containing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174811A (en) * 1981-04-20 1982-10-27 Fujikura Ltd Laminated electric insulator
EP0843320A3 (en) * 1996-11-18 1998-12-09 Tomoegawa Paper Co. Ltd. Electrical insulating laminated paper, process for producing the same and oil-impregnated power cable containing the same
US6207261B1 (en) 1996-11-18 2001-03-27 Tomoegawa Paper Co. Electrical insulating laminated paper, process for producing the same oil-impregnated power cable containing the same

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