H - Electricity – 01 – B
Patent
H - Electricity
01
B
337/16
H01B 3/52 (2006.01) B32B 27/10 (2006.01) B32B 38/04 (2006.01) D21H 11/04 (2006.01) D21H 27/36 (2006.01) D21H 27/40 (2006.01) H01B 3/00 (2006.01) H01B 3/44 (2006.01) H01B 3/54 (2006.01) H01B 9/06 (2006.01) H01B 19/00 (2006.01)
Patent
CA 1225443
ABSTRACT OF THE DISCLOSURE An insulating polyolefin laminate paper and a method for producing such a paper in which first and second fiber paper layers are laminated to a polyolefin film layer. The fiber paper layers have an impermeability of 20 to 4000 Gurley-seconds. At least one of the fiber paper layers is mechanically deformed in such a manner that irregularities are produced having a depth of 2 to 50% of the thickness of the fiber paper layer. The mechanical deformation is accomplished prior to lamination. Before lamination, the water content of the fiber paper layers is controlled to be no move than 4%. Preferably, the thickness of the fiber paper layers is at least 30 microns. Furthermore, an electric power supply cable includes an insulating polyolefin laminate paper an insulating layer.
462666
Hagiuda Yasuhiro
Hata Ryosuke
Hirose Masayuki
Kuwabara Hidemitsu
Mizumoto Yasuharu
Riches Mckenzie & Herbert Llp
Sumitomo Electric Industries Ltd.
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