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. 26, 1988
Filed:
Jan. 30, 1987
James B Heather, Hercules, CA (US);
Stauffer Chemical Company, Westport, CT (US);
Abstract
A method for the preparation of benzyl mercaptan is disclosed which comprises reacting a benzyl halide of the formula ##STR1## wherein X is chlorine or bromine, with an alkali metal hydrosulfide salt, at a temperature and for a sufficient period of time to cause formation of the benzyl mercaptan, said reaction being conducted under a hydrogen sulfide atmosphere at a temperature of about 50.degree. C. until approximately 90% of the starting material is converted to the benzyl mercaptan, then increasing the temperature to about 80.degree. C. for the balance of the reaction, the initial concentration of said hydrosulfide salt in solution being between about 5% and about 30% by weight.