Electrical insulating materials made partly or wholly of polyest

Details Electrical insulating materials made partly or wholly of polyest Electrical insulating materials made partly or wholly of polyest

1988-05-16

1989-09-19

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428220, 428294, 428343, 428354, 428409, 428430, 174120SR, 174121SR, 156 53, B32B 1704, B32B 3300, H01B 342, H01B 348, H01B 1760

Patent

active

048680354

ABSTRACT:
Improved electrical insulating tapes are disclosed having a poly(ethylene terephthalate) film component. The film has one amorphous surface and an opposite crystalline surface. In a preferred embodiment, a composite insulating material is provided having the film component with a fiber glass yarn strand layer adhered thereto. The fiber glass yarn strands are substantially continuous and uninterrupted, and are substantially parallel to the axis of elongation of the tape, and to each other.

REFERENCES:
patent: 3188266 (1965-06-01), Charbonneau et al.
patent: 3867245 (1975-02-01), Herman
patent: 3867758 (1975-02-01), Jackson
patent: 4045611 (1977-08-01), Torgerson
patent: 4271226 (1981-06-01), Herbreteau
patent: 4761520 (1988-08-01), Wade et al.
Essex Magnet Wire Product and Application Data, Published by United Technologies Essex Group, Aug. 1982.

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