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. 26, 1981
Filed:
Jun. 18, 1979
Louis de Vries, Greenbrae, CA (US);
Chevron Research Company, San Francisco, CA (US);
Abstract
Hydrocarbylethyl sulfonyl fluorides in which the hydrocarbyl substituent contains at least 3 carbon atoms, can be prepared by reacting 2-mercaptoethanol with chlorine to form chloroethyl sulfonyl chloride which is treated with aqueous potassium fluoride to yield chloroethyl sulfonyl fluoride, followed by treatment with magnesium oxide to yield vinyl sulfonyl fluoride. The vinyl sulfonyl fluoride is adducted to a hydrocarbyl substituent precursor, such as an olefin or halogenated olefin. A representative compound is polyisobutenyl sulfonyl fluoride. The hydrocarbylethyl sulfonamide products for which the hydrocarbylethyl sulfonyl fluorides are intermediates are useful as additives for lubricating oils.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile