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. 09, 1976
Filed:
Dec. 05, 1975
Nobukazu Okamoto, Ohimachi, JA;
Michihide Tokashiki, Kawagoe, JA;
Toa Nenryo Kogyo Kabushiki Kaisha, Tokyo, JA;
Abstract
The invention comprises an oil-soluble ashless detergent dispersant consisting of a reaction product obtained by reacting (a) an alkenyl dibasic acid or its anhydride (the alkenyl group having at least 40 carbon atoms) with (b) an alcohol of the hindered type and then reacting the so obtained intermediate with (c) an amine or its derivative or analogue [the sum of moles of primary and secondary amino groups of (c) not exceeding the sum of moles of the ester linkage formed by the reaction between (a) and (b)], or consisting of a borated or phosphosulfided product obtained by reacting the above reaction product with boric acid (or its anhydride) or phosphorus pentasulfide.