Flat type capacitor-use polypropylene film and flat type...

Details Flat type capacitor-use polypropylene film and flat type... Flat type capacitor-use polypropylene film and flat type...

2008-07-29

2008-07-29

Ha, Nguyen T (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S302000, C361S311000, C361S313000, C361S301200, C361S322000

Reexamination Certificate

active

07405920

ABSTRACT:
A flat type capacitor-use polypropylene film having a Ad(thickness determined by micrometer method—thickness determined by weighing method) of 0.05-0.2 μm and a lengthwise shrinkage dimensional change rate of 3% or less, or a flat type capacitor-use polypropylene film having a Δd of 0.1-0.3 μm and a lengthwise F5 value of 50 MPa or more, and a flat type capacitor using it. A film excellent in handling ability in a capacitor element winding process is obtained, and a small, a large-capacity flat type capacitor excellent in withstand voltage characteristics such as self-recovering property, and used suitably under a high rated voltage, is obtained.

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Microfilm of the Specification and Drawings annexed to the request of Japanese Utility Model Application No. 134787/1982 (Laid-open No. 39922/1984).

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