Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2009-03-11
2011-12-27
Xu, Ling (Department: 1784)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S317900, C428S315500, C428S317700, C428S312800, C264S234000, C264S235000
Reexamination Certificate
active
08084122
ABSTRACT:
A zirconia-carbon-containing refractory includes aggregate grains, a carbon bond formed between the aggregate grains, 80% by mass or more of a ZrO2component, and a carbonaceous material, in which the total volume of open pores and the carbonaceous material in the structure of the refractory is in the range of 25% to 42% by volume, open pores each having a diameter of 10 μm or more account for 30% or less of the total volume of open pores in the structure of the refractory, and carbonaceous material grains each having a maximum length exceeding 45 μm in the carbonaceous material in the zirconia-carbon-containing refractory account for less than 60% by mass of the total mass of the carbonaceous material except the bonding carbon in the zirconia-carbon-containing refractory.
REFERENCES:
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patent: 11-302073 (1999-11-01), None
patent: WO 2006/112485 (2006-10-01), None
Translation of Yoshitsugu, Daisuke, et al. “Properties of High Zirconia-Graphite Material for SEN,” The Technical Association of Refractories, Japan, Chuzo-yo Taikabutsu Senmon Iinkai Hokokushu, Nov. 28, 2005, vol. 87th, pp. 86-92.
Yoshitsugu, Daisuke, et al. “Properties of High Zirconia-Graphite Material for SEN,” The Technical Association of Refractories, Japan, Chuzo-yo Taikabutsu Senmon Iinkai Hokokushu, Nov. 28, 2005, vol. 87th, pp. 86-92.
Yoshitsugu, Daisuke, et al. “Improvement of Durability of ZG Materials,” Taika Zairyo, Dec. 20, 2007, No. 155, pp. 28-34.
International Search Report and Written Opinion of the International Search Authority with its English translation dated Aug. 4, 2009.
D. Yoshitsugu, et al; “Improvement of the Durability of Zg Materials by Nano-Technology;” Proceedings of the Unified International Technical Conference on Refractories; Dresden-ICD, Germany; Sep. 18-21, 2007; Label of CD-ROM version of Proceedings, Cover Sheet of booklet version of proceedings, Preface, Table of Contents, published page of article and Website information regarding the Congress (6 Sheets total.).
Morikawa Katsumi
Yoshitsugu Daisuke
Kratz Quintos & Hanson, LLP
Krosaki Harima Corporation
Xu Ling
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