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. 20, 1976
Filed:
Jul. 18, 1974
Applicant:
Inventor:
William G Whalley, Vancouver, WA (US);
Assignee:
Crown Zellerbach Corporation, San Francisco, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ; 260608 ;
Abstract
A selective process for producing mercaptophenols is achieved by reducing the polysulfides which result from contacting phenols with sulfur chloride in a polar solvent reaction medium including a hydrogen chloride promoter, wherein the concentration of phenols is relatively dilute. The process selectivity promotes the sulfurization of phenols to polysulfides which are reducible to mercaptophenols.