Mica sheet and tape

Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...

Reexamination Certificate

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Details

C428S218000, C428S324000, C428S458000, C428S469000, C174S11000P

Reexamination Certificate

active

06991845

ABSTRACT:
The present invention relates to a sheet structure for electrical insulation or flame resistance comprising a barrier ply having a mica-rich face and a mica-poor face and a reinforcing ply containing a saturable backing layer attached to the mica-poor face of the barrier ply.

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Database WPI Week 198203, Derwent Publications Ltd., London, GB; AN 1982-04945e, XP002299812 & JP 56 159011 A (Mitsubishi Electric Corp) Dec. 8, 1981 abstract.
Patent Abstracts of Japan, vol. 1996, No. 04, Apr. 30, 1996 & JP 7 320553 A (Showa Electric Wire & Cable Co. Ltd.), Dec. 8, 1995, abstract.

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