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:
Nov. 28, 2000
Filed:
Oct. 02, 1998
Applicant:
Inventors:
Masahiro Motoyuki, Osaka, JP;
Koji Yamamoto, Kobe, JP;
Shingo Yoshida, Osaka, JP;
Yonezo Matsumoto, Osaka, JP;
Hisako Nakashima, Osaka, JP;
Midori Kumazawa, Osaka, JP;
Masaaki Matsuda, Osaka, JP;
Assignee:
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; B01D / ;
U.S. Cl.
CPC ...
585821 ; 585825 ; 95 84 ;
Abstract
In a method for separating at least one alkylnaphthalene from a stock mixture containing at least two alkylnaphthalenes selected from the group consisting of monoalkylnaphthalenes and dialkylnaphthalenes, a column packed with an optically active chromatographic packing is used for separation. The method can effectively separate a variety of alkylnaphthalenes from a mixture thereof.