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. 21, 2003
Filed:
Mar. 20, 2001
Applicant:
Inventors:
Hajime Kato, Nagoya, JP;
Masahito Yoshikawa, Nagoya, JP;
Kazuyoshi Iwayama, Nagoya, JP;
Shinichi Sakaguchi, Nagoya, JP;
Naoyuki Uchiyama, Nagoya, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 3/948 ; B01J 2/906 ;
U.S. Cl.
CPC ...
C01B 3/948 ; B01J 2/906 ;
Abstract
A CFI-type zeolite where the atomic ratio of silicon to the heteroatom is 45 or less and the long axes of the crystals are 0.7 &mgr;m or less is useful as a catalyst for conversion reaction of aromatic compounds because the zeolite has a number of active sites and small crystals.