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:
Feb. 17, 2009
Filed:
Mar. 22, 2005
Tomoaki Tsuji, Kashima-gun, JP;
Hideharu Iwasaki, Kurashiki, JP;
Tomoaki Tsuji, Kashima-gun, JP;
Hideharu Iwasaki, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki, JP;
Abstract
Bisphosphite(s) represented by the following general formula (I): wherein Arand Arare each independently a substituted or unsubstituted arylene group; R, R, Rand Rare each independently a substituted or an unsubstituted alkyl group, a substituted or an unsubstituted aryl group or a substituted or an unsubstituted heterocyclic group, or Rand Ror Rand Rmay together form a ring with their associated oxygen atoms and phosphor atom; and R, R, Rand Rare each independently a hydrogen atom or an alkyl group, with the proviso that the carbon atom bearing Rand Rand the carbon atom bearing Rand Rare bound to the respective arylene groups at the ortho position to the Ar—Arbond. Also provided is a process for producing aldehyde(s) using the bisphosphite and a Group 8 to 10 metal compound. A composition comprising the bisphosphite and a Group 8 to 10 metal compound is further provided.