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. 06, 1976
Filed:
Jun. 28, 1974
Applicant:
Inventor:
Nobukazu Okamoto, Ohi, JA;
Assignee:
Toa Nenryo Kogyo Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 252 / ; 2602 / ; 2604 / ;
Abstract
An ashless detergent dispersant for hydrocarbon oils which comprises a mixture of ester-amide-imide compounds obtained by reacting (A) one mole of an alkenyl dibasic acid or alkenyl dibasic acid anhydride having at least 40 carbon atoms in the alkenyl moiety, with (B) 0.05 to 0.65 mole of an alkanolamine of formula