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:
Sep. 28, 1999
Filed:
Jan. 24, 1997
Applicant:
Inventors:
Ryong Ryoo, Taejon, KR;
Ji Man Kim, Taejon, KR;
Assignee:
YuKong Limited, Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423705 ; 423713 ; 423326 ; 4233281 ;
Abstract
Noncrystalline mesoporous molecular sieve substances are prepared using alkyltrimethylammonium halide as a surfactant in combination with water-soluble organic or inorganic salts capable of binding to a monovalent cation. The sieve substances are superior to the M41S series in thermal stability and hydrothermal stability. The sieve substances are structurized in such a manner that channels uniform in diameter are randomly arranged interconnecting with one another in a three-dimensional way so as to allow reactants to readily diffuse therein.