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:
Aug. 12, 1986
Filed:
Sep. 03, 1985
Kwoliang D Tau, Corpus Christi, TX (US);
Celanese Corporation, New York, NY (US);
Abstract
A continuous process for hydroformylating butene-2 so as to produce 2-methylbutanal in the presence of an halogen-free rhodium complex catalyst of the formula RhH.sub.m (CO).sub.n L.sub.p, wherein 'L' is a trialkyl (including cycloalkyl) phosphine ligand having a cone angle within the range of 159 to 171 degrees and wherein the frequency of the A.sub.1 carbonyl mode of the Ni(CO).sub.3 L in dichloromethane is within the range of 2056.1 to 2061.1 cm.sup.-1, there being no substantial excess of free phosphorous ligand.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile