Plastic and nonmetallic article shaping or treating: processes – Including step of generating heat by friction
Patent
1987-04-17
1994-02-22
Walsh, Donald P.
Plastic and nonmetallic article shaping or treating: processes
Including step of generating heat by friction
423345, F27B 904
Patent
active
052884449
ABSTRACT:
Ceramic fibers formed by the pyrolysis of organosilicon preceramic polymers are provided with increased resistivity by treating the fibers in air at temperatures of less than 1,000.degree. C. to oxidize the free carbon content of the fibers.
REFERENCES:
patent: 4283376 (1981-08-01), Yajima et al.
patent: 4399232 (1983-08-01), Yajima et al.
Goldberg Harris A.
Kalnin Ilmar L.
Williams Clyde C.
Ferrell M. W.
Greaves John N.
Hoechst Celanese Corp.
Walsh Donald P.
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