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. 23, 2007
Filed:
Mar. 30, 2001
Hiroyuki Miura, Takasago, JP;
Hitoshi Watanabe, Himeji, JP;
Akihiro Kuwana, Himeji, JP;
Mami Shimamura, Himeji, JP;
Naruhisa Hirai, Himeji, JP;
Hiroyuki Miura, Takasago, JP;
Hitoshi Watanabe, Himeji, JP;
Akihiro Kuwana, Himeji, JP;
Mami Shimamura, Himeji, JP;
Naruhisa Hirai, Himeji, JP;
Daicel Chemical Industries, Ltd., Osaka, JP;
Abstract
A reaction mixture obtained by reacting a substrate in the presence of an imide compound having an imide unit represented by the formula () can be efficiently separated through crystallization and/or extraction with a specific solvent into the imide compound and a reaction product. (In the formula, X represents oxygen, hydroxyl, or acyloxy.) Furthermore, a mixture comprising the imide compound and a metal catalyst can be efficiently separated through crystallization, adsorption, and/or extraction into the imide compound and the metal catalyst.