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. 02, 1991
Filed:
May. 12, 1989
Applicant:
Inventor:
William K Stephenson, Sugar Land, TX (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44340 ; 44388 ; 44400 ; 210708 ; 210733 ; 210734 ; 210727 ; 208188 ;
Abstract
A method of dehazing a contained body of petroleum distillate by removing suspended water droplets from the distillate phase, or releasing free water trapped in an emulsion settled from the distillate phase, a detergent having been added to the petroleum distillate, comprising the step of adding to the distillate an effective amount of a vinyl copolymer which includes both a hydrophilic and hydrophobic monomer.