High temperature compressed non-asbestos sheet

Details High temperature compressed non-asbestos sheet High temperature compressed non-asbestos sheet

1988-02-03

1989-08-22

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

277227, 277228, 428286, 428339, 428408, 428920, B32B 904, B65D 5300, F16J 156, F16J 1510

Patent

active

048595268

ABSTRACT:
A high temperature compressed non-asbestos sheet is provided which is effective for gasketing applications in temperatures up to at least 900.degree. F. The sheet is formed from carbon fibers having a high percentage of carbonization and a low modulus of elasticity. The carbon content of the fibers is above 90% while the modulus of elasticity is less than 10,000,000 psi., and such fibers form at least 75% of the fiber content of the sheet. The carbon fibers may be blended with small portions of organic fibers to enhance the physical properties of the sheet.

REFERENCES:
patent: 4271228 (1981-06-01), Foster et al.
patent: 4508777 (1985-04-01), Yamamoto
patent: 4529662 (1985-07-01), Lancaster et al.
patent: 4529663 (1985-07-01), Lancaster et al.
patent: 4546033 (1985-10-01), Tsuchimoto et al.
patent: 4656085 (1987-04-01), Bechen et al.
patent: 4770926 (1988-09-01), Yamamura et al.

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