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:
Jul. 21, 1987
Filed:
Feb. 11, 1985
Applicant:
Inventors:
Dennis C Annarelli, Newtown, PA (US);
Frank J Dominiani, Jr, Flemington, NJ (US);
Assignee:
FMC Corporation, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558112 ;
Abstract
The alcoholysis and phenolysis of phosphorus pentasulfide is accelerated by reacting the phosphorus pentasulfide with an alcohol or phenol in the presence of a catalytic amount of a catalyst consisting essentially of water, phosphoric acid, a phosphate salt, sulfuric acid or mixtures thereof. The dialkyl- or diaryldithiophosphoric acids produced are useful in the production of such products as motor oil additives, insecticides, etc.