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:
Jul. 12, 2011
Filed:
Mar. 30, 2006
Osamu Misumi, Chiba, JP;
Shinichi Yamamoto, Yamaguchi, JP;
Takayuki Watanabe, Chiba, JP;
Takashi Kishimoto, Chiba, JP;
Takashi Watanabe, Chiba, JP;
Fumio Okada, Chiba, JP;
Yoshio Ishihara, Tokyo, JP;
Katsumasa Suzuki, Tokyo, JP;
Kaoru Sakoda, Tokyo, JP;
Osamu Misumi, Chiba, JP;
Shinichi Yamamoto, Yamaguchi, JP;
Takayuki Watanabe, Chiba, JP;
Takashi Kishimoto, Chiba, JP;
Takashi Watanabe, Chiba, JP;
Fumio Okada, Chiba, JP;
Yoshio Ishihara, Tokyo, JP;
Katsumasa Suzuki, Tokyo, JP;
Kaoru Sakoda, Tokyo, JP;
Ube Material Industries, Ltd., Ube-shi, Yamaguchi, JP;
Taiyo Nippon Sanso Corporation, Shinagawa-ku, Tokyo, JP;
Abstract
A granular material having a high strength and a large BET specific surface area composed of porous particles comprising calcium oxide and calcium hydroxide wherein the calcium oxide is contained in an amount of 30 to 80 weight % based on a total amount of the calcium oxide and calcium hydroxide and the porous particles have a BET specific surface area of 40 m/g or more, or composed of porous particles comprising calcium oxide, magnesium oxide, calcium hydroxide, and magnesium hydroxide wherein a ratio of an amount of magnesium to a total of an amount of calcium and an amount of magnesium is in the range of 0.05 to 0.80, a total hydroxide content in the whole particles is in the range of 1 to 20 weight % and the porous particles have a BET specific surface area of 50 m/g or more.