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Primary Examiner: Gwinnell, Harry J.
Assistant Examiner: Konopacki, Dennis C.
Attorney:

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Title: Method for producing isotropic pyrolisis carbon coatings

Abstract: A material having a vapor pressure of at least 5 mm Hg at 490.degree.C. and selected from aromatic and cycloaliphatic hydrocarbons and alkyl derivatives thereof, nitrogen-, oxygen- and sulfur-containing compounds having hetero rings and alkyl derivatives thereof, substituted compounds of these compounds, and substances containing these compounds is used as starting material. Such starting material is brought into contact in a vapor state, if necessary, diluted with an inert gas, with a substrate heated at a temperature of 600.degree.-1500.degree.C. thereby depositing the resulting isotropic pyrolytic carbon on the substrate.

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Inventors: Araki, Tadashi (Tokyo, JA)
Asano, Kiro (Tokyo, JA)
Yamada, Jun (Tokyo, JA)
Imaizumi, Hisao (Urawa, JA)
Awao, Takao (Tokyo, JA)

Application Number: 443710
Filing Date: 1974-02-19
Publication_date: 1976-04-06
Assignee: Toyo Boseki Kabushiki Kaisha (Osaka, JA)
Primary Class(es): 427/249.1 264/29.6, 264/81, 427/212, 427/215, 427/314, 427/316, 427/318, 427/405
Other Classes:
US Patent Ref:

2062370	Dec, 1936	Miller	117/46.
2196172	Apr, 1940	Billings et al.	117/46.
2282235	May, 1942	Moberly	117/46.
2778743	Jan, 1957	Bowman	117/46.
2780539	Feb, 1957	Seiler	117/46.
3164487	Jan, 1965	Carley-Macauly	117/46.
3247008	Apr, 1966	Finicle	117/46.
3429486	Feb, 1969	Cope et al.	264/29.
3475211	Oct, 1969	Hasegaw et al.	117/46.
3558344	Jan, 1971	Peterson	117/46.
3565980	Feb, 1971	Otani	264/29.
3791847	Feb, 1974	Araki et al.	117/46.
3851048	Nov, 1974	Araki et al.	117/46.

Other Refs: Other References: Brown et al., Carbon, Vol. 4, pp. 193-199, (1966).
Walker et al., Carbon, Vol. 5, pp. 13-17, (1967).
Lahaye et al., Carbon, Vol. 6, pp. 419 and 420, (1968).
Edstrom et al., Carbon, Vol. 7, pp. 85-91, (1969).
Isaacs, Carbon, Vol. 7, pp. 531-534, (1969).