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. 18, 2007
Filed:
Feb. 26, 2004
Yasutaka Ishii, Takatsuki, JP;
Tatsuya Nakano, Himeji, JP;
Yasutaka Ishii, Takatsuki, JP;
Tatsuya Nakano, Himeji, JP;
Daicel Chemical Industries Ltd., Sakai-Shi, Osaka, JP;
Abstract
An aromatic compound (C) is reacted with carbon monoxide (D) and molecular oxygen (E) in the presence of a palladium compound catalyst (A) and a catalyst (B) and thereby yields a aromatic carboxylic acid corresponding to the aromatic compound (C) except with one or more carboxyl groups bonded to its aromatic ring. The catalyst (B) contains a heteropolyacid or a salt thereof (B) or a mixture of oxo acids and/or salts thereof (B), and the mixture (B) contains, as a whole, one of P and Si and at least one selected from V, Mo and W.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile