Global patent index - EP 0889485 A4

EP 0889485 A4 2000-07-12 - OIL-IMPREGNATED INSULATING PLASTIC LAMINATED PAPER, KRAFT PAPER FOR USE IN LAMINATED PAPER AND POWER CABLE USING THE SAME

Title (en)

OIL-IMPREGNATED INSULATING PLASTIC LAMINATED PAPER, KRAFT PAPER FOR USE IN LAMINATED PAPER AND POWER CABLE USING THE SAME

Title (de)

ÖLIMPREGNIERTES ISOLIERENDES KUNSTSTOFFLAMINIERTES PAPIER, KRAFTPAPIER FÜR LAMINIERTES PAPIER UND ENERGIEKABEL MIT DEMSELBEN

Title (fr)

PAPIER STRATIFIE EN PLASTIQUE ISOLANT IMPREGNE D'HUILE, PAPIER KRAFT UTILISE DANS DU PAPIER STRATIFIE ET CABLE ELECTRIQUE REALISE AU MOYEN DE CE PAPIER

Publication

EP 0889485 A4 (EN)

Application

EP 96942664 A

Priority

JP 9603853 W

Abstract (en)

[origin: WO9829878A1] Oil-impregnated insulating plastic laminated paper for use as an oil-impregnated insulating material in, for example, an OF (Oil-Filled) cable, kraft paper for use in the laminated paper, and a power cable using the laminated paper. The impulse dielectric breakdown properties of the oil-impregnated insulating material obtained by the use of the laminated paper which comprises the kraft paper and a plastic film must be improved by increasing the bonding strength of the kraft paper to the plastic film. Multi-layered paper with more than one layer of paper having different air resistances is used as such kraft paper to solve the aforementioned problem; namely, a low air-resistance layer has 5,000 Gurley/sec or lower, whereas a high air-resistance layer has 1,000 Gurley/sec or higher.

IPC 1-7 (main, further and additional classification)

H01B 3/52; H01B 3/54

IPC 8 full level (invention and additional information)

H01B 3/54 (2006.01); H01B 7/02 (2006.01); H01B 9/06 (2006.01)

CPC (invention and additional information)

H01B 9/0688 (2013.01); H01B 3/54 (2013.01); H01B 7/0216 (2013.01); H01B 7/0225 (2013.01)

Citation (search report)

  • [E] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 06 30 June 1997 (1997-06-30)
  • See also references of WO 9829878A1

Designated contracting state (EPC)

DE FR GB IT SE

EPO simple patent family

WO 9829878 A1 19980709; EP 0889485 A1 19990107; EP 0889485 A4 20000712

INPADOC legal status

2006-01-11 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20050701

2004-01-21 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20031204

2000-07-12 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000529

2000-07-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT SE

2000-07-12 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7H 01B 3/52 A, 7H 01B 3/54 B

1999-01-07 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19980821

1999-01-07 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT SE