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:
May. 17, 2005
Filed:
Nov. 26, 2001
Luis A. Chu, Forsyth, IL (US);
Lucy M. Clarkson, Kennett Square, PA (US);
Norman Herron, Newark, DE (US);
Ronald J. Mckinney, Wilmington, DE (US);
Kenneth G. Moloy, Hockessin, DE (US);
Zeru Tekie, Beaumont, TX (US);
Luis A. Chu, Forsyth, IL (US);
Lucy M. Clarkson, Kennett Square, PA (US);
Norman Herron, Newark, DE (US);
Ronald J. McKinney, Wilmington, DE (US);
Kenneth G. Moloy, Hockessin, DE (US);
Zeru Tekie, Beaumont, TX (US);
Invista North America S.A.R.L., Wilmington, DE (US);
Abstract
A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.