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:
Apr. 10, 1990
Filed:
Nov. 04, 1986
Applicant:
Inventors:
Timothy R Diephouse, Midland, MI (US);
Robert M Strom, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
552304 ; 2604105 ; 558335 ; 558339 ; 558340 ; 560-8 ; 560106 ; 560186 ; 560188 ; 560221 ; 560254 ; 564389 ; 568430 ; 568432 ; 568435 ; 568607 ; 568644 ; 568662 ; 568764 ; 568774 ;
Abstract
Paramethyl-substituted hindered phenols are selectively oxidized by contacting with an oxidizing agent at elevated temperatures in the presence of a heterogeneous oxidative coupling catalyst. In the absence of an optional nucleophile the products comprise carbon-carbon oxidative coupling products. In the presence of a nucleophile, addition products result that may be further oxidized by continued exposure to the oxidizing agent to yield substituted p-hydroxybenzaldehydes.
Diephouse, Timothy. (1990). Oxidation products of paramethyl-substituted hindered phenols (U.S. Patent No. 4915875). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4915875
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile