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. 11, 2011
Filed:
May. 10, 2006
Satoshi Takamizawa, Yokohama, JP;
Satoshi Takamizawa, Yokohama, JP;
Yokohama City University, Yokohama-shi, Kanagawa, JP;
Abstract
A large single crystal of a complex such as an organic carboxylic acid metal complex, which crystal is useful as an adsorbent of various gases and vapors of organic solvents and as a hydrogen-absorbing material, as well as a process for producing the crystal, is disclosed. Two layers wherein an upper layer thereof is constituted by a solution containing a metal salt and an organic carboxylic acid having a conjugated system, or a solution containing a metal salt of the organic carboxylic acid having a conjugated system, and wherein a lower layer of the two layers is constituted by a solvent which is not miscible with the solvent of the solution, is formed. Vapor of pyrazine or a substituted pyrazine from a solution of pyrazine or the substituted pyrazine is introduced into the upper layer to allow reaction, thereby forming a large single crystal(s) of the organic carboxylic acid metal complex at the interface between the two layers, which crystal(s) has(have) a longer side with a size of not less than 0.8 mm.