Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...
Reexamination Certificate
2006-12-12
2006-12-12
Mcneil, Jennifer C. (Department: 1775)
Stock material or miscellaneous articles
Self-sustaining carbon mass or layer with impregnant or...
Reexamination Certificate
active
07147919
ABSTRACT:
An expansion graphite sheet of high thermal resistance includes an expansion graphite as a main component, and inorganic thermal resistance particles made of at least one selected from the group consisting of aluminum boride (AlB2and/or AlB12), silicon boride (SiB6), zinc boric acid (2ZnO.3B2O3.3.5H2O) and phosphorous boride (PB). An exhaust gasket made of the expansion graphite sheet, in addition to the expansion graphite sheet, can exhibit high thermal (oxidization) resistance under a high temperature of 600–700° C.
REFERENCES:
patent: 3719608 (1973-03-01), Olstowski
patent: 3997294 (1976-12-01), Kritzler
patent: 4670201 (1987-06-01), Montgomery et al.
Hamada Yoshiaki
Ichio Yukihiro
Koike Shintaro
Murakami Yasunori
Nakajima Kouichi
Mcneil Jennifer C.
Miller Daniel
Nippon Leakless Industry Co. Ltd.
Young & Thompson
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