Claims
- 1. A sealing gasket formed of a flexible graphite roll-pressed sheet of a blended mixture of (i) exfoliated expanded natural graphite particles formed of heat expanded intercalated natural graphite flake sized at least 80% by weight 20 by 50 mesh prior to heat expansion and (ii) unexfoliated intercalated natural graphite flake sized at least 80% by weight 50.times.80 mesh, the amount of the unexfoliated intercalated natural graphite flake in the blended mixture and in the flexible sheet being from 5 to 25% by weight and said unexfoliated intercalated natural graphite flake being uniformly entrapped and surrounded in a continuous matrix of exfoliated natural graphite particles.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 08/819,744 filed Mar. 18, 1997.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
819744 |
Mar 1997 |
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