The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2011
Filed:
Apr. 15, 2003
Tsutomu Fukuda, Kakogawa, JP;
Masahiro Fukuda, Uji, JP;
Masaaki Fukuda, Kakogawa, JP;
Toshinobu Yoko, Uji, JP;
Masahide Takahashi, Uji, JP;
Tsutomu Fukuda, Kakogawa, JP;
Masahiro Fukuda, Uji, JP;
Masaaki Fukuda, Kakogawa, JP;
Toshinobu Yoko, Uji, JP;
Masahide Takahashi, Uji, JP;
Ohcera Co., Ltd., Osaka-shi, JP;
Abstract
The present invention provides a raw material composition for preparing a sintered body of aluminum titanate, the composition comprising (i) 100 parts by weight of a mixture comprising 40 to 50 mol % of TiOand 60 to 50 mol % of AlO, (ii) 1 to 10 parts by weight of an alkali feldspar represented by the formula: (NK)AlSiO(0≦x≦1), and (iii) 1 to 10 parts by weight of at least one Mg-containing component selected from the group consisting of a Mg-containing oxide with spinel structure, MgCOand MgO, and a process for preparing a sintered body of aluminum titanate comprising sintering a formed product prepared from the raw material composition at 1300 to 1700° C. According to the present invention, a sintered body of aluminum titanate having high mechanical strength and ability to be stably used at high temperatures, as well as its inherent properties of low coefficient of thermal expansion and high corrosion resistance, can be obtained.