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:
Jan. 30, 1996
Filed:
Aug. 12, 1994
Applicant:
Inventors:
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568454 ; 568426 ; 568429 ; 568451 ; 568455 ;
Abstract
Process for the hydroformylation of ethylenically unsaturated compounds, by reaction with carbon monoxide and hydrogen in the presence of a catalyst based on a metal of the platinum group, a source of anions and a bidentate ligand of the formula R.sup.1 R.sup.2 M.sup.1 RM.sup.2 R.sup.3 R.sup.4 wherein M.sup.1 and M.sup.2 are phosphorus, arsenic or antimony, R is a bivalent organic bridging group with 1 to 4 atoms in the bridge, R.sup.1 and R.sup.2 together represent a bivalent cyclic group and R.sup.3 and R.sup.4 independently represent an optionally substituted hydrocarbyl group or together have the same meaning as R.sup.1 and R.sup.2.