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:
Oct. 23, 1990
Filed:
Apr. 21, 1989
Applicant:
Inventor:
Raymond C Schlicht, Fishkill, NY (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 38 ; 252 39 ; 252 41 ; 252 32 ; 252 334 ;
Abstract
A process for preparing a borated, overbased metal detergent additive for lubricants which comprises dissolving a metal salt in a hydrocarbon solvent, adding a metal base and a polar solvent, treating with an acid gas, filtering the mixture to form a filtrate to which boric acid is added, heating the boric acid/filtrate mixture, stripping the cooled boric acid/filtrate reaction mixture and recovering the borated metal detergent additive therefrom.