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:
Oct. 15, 2002
Filed:
Oct. 12, 2000
Applicant:
Inventors:
Toshiyuki Hakata, Hiroshima, JP;
Tomoko Okita, Hiroshima, JP;
Assignee:
Toda Kogyo Corporation, Hiroshima-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2/118 ; B01J 2/302 ; C04B 3/500 ; C04B 3/526 ; B32B 1/502 ;
U.S. Cl.
CPC ...
B01J 2/118 ; B01J 2/302 ; C04B 3/500 ; C04B 3/526 ; B32B 1/502 ;
Abstract
Porous composite particles contain 80 to 98% by weight of a filling material and 2 to 20% by weight of carbon, and have an average pore diameter of not more than 5 nm when measured with respect to pores existing in both the surface and inside portions thereof, an average particle size of 1 to 1,000 &mgr;m and a specific surface area of 45 to 200 m /g. These porous composite particles individually contain the filling material in as large an amount as possible, so they have not only a high catalytic but also a high adsorption ability, thereby exhibiting an excellent catalytic activity.