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. 22, 2018
Filed:
Aug. 31, 2016
Applicant:
Eastman Chemical Company, Kingsport, TN (US);
Inventor:
Thomas James Devon, Longview, TX (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 15/14 (2006.01); C07C 41/30 (2006.01); C07C 1/32 (2006.01);
U.S. Cl.
CPC ...
C07C 41/30 (2013.01); C07C 1/326 (2013.01); C07C 2531/22 (2013.01);
Abstract
The disclosure relates to the efficient preparation of aromatic hydrocarbons useful as intermediates for di-, tri-, tetra- and poly-dentate organophosphorus ligands having value in particular as hydroformylation catalysts. The use of triarylphosphine halide catalysts have been found to be more efficient in forming these intermediates by the use of excess triarylphosphine in an amount beyond what is required to form a coordination complex.
Quick Actions:
Devon, Thomas. (2018). Efficient catalyst for the formation of polyaryl hydrocarbons suitable as precursors for polydentate organophosphorus catalyst ligands (U.S. Patent No. 9975833). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9975833
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile