Apparatus for the preparation of semiconducting pyropolymeric in

Details Apparatus for the preparation of semiconducting pyropolymeric in Apparatus for the preparation of semiconducting pyropolymeric in

1976-09-07

1977-12-27

Kee Chi, James

Coating apparatus

With cutting, punching or tearing of work

Web or sheet work

118 48, 118 49, 427 82, 427255, 366107, 366318, C23C 1308

Patent

active

040648290

ABSTRACT:
Semiconducting carbonaceous pyropolymeric inorganic refractory oxide materials are prepared by utilizing a continuous semi-fluidized bed system comprising a laterally disposed tubular reaction section, a stabilizing section and a cooling section in axial alignment with one another, means for introducing an inorganic refractory oxide into said reaction section and means for introducing a gaseous hydrocarbon pyropolymeric precursor into the reaction section whereby said oxide is contacted with a precursor while maintaining said oxide in a semi-fluidized state.

REFERENCES:
patent: 1310037 (1919-07-01), Snelling
patent: 3617347 (1971-11-01), Kuratomi
patent: 3900547 (1975-08-01), Hunt et al.
patent: 3916066 (1975-10-01), Youtsey et al.
patent: 3940509 (1976-02-01), Youtsey et al.

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