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:
Nov. 18, 1986
Filed:
Jul. 16, 1985
Applicant:
Inventors:
Siegfried Rosenberger, Riehen, CH;
Werner Stegmann, Liestal, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 15 ;
Abstract
Compounds of the formula I ##STR1## wherein R.sup.1 and R.sup.2 independently of one another are each tert-butyl, R.sup.3 is C.sub.1 -C.sub.20 -alkyl, or C.sub.2 -C.sub.20 -alkyl interrupted by --O-- or --S--, and n is the number 1 or 2, can be obtained, with a very high degree of yield and purity, by reaction of a phenol of the formula II ##STR2## with formaldehyde and a mercaptan of the formula III
Rosenberger, Siegfried. (1986). Process for producing phenolic thiocarboxylic esters (U.S. Patent No. 4623745). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4623745
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile