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:
Sep. 30, 1997
Filed:
Jul. 01, 1996
Applicant:
Inventor:
John A Schield, Chesterfield, MO (US);
Assignee:
Petrolite Corporation, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10L / ; C10L / ;
U.S. Cl.
CPC ...
44386 ; 44393 ; 44394 ; 44397 ; 44412 ; 44422 ;
Abstract
A composition having increased electrical conductivity, comprising a liquid hydrocarbon and an anti-static amount of a hydrocarbon soluble copolymer of an alkylvinyl monomer and a cationic vinyl monomer. The copolymer has an alkylvinyl monomer unit to cationic vinyl monomer unit ratio of from about 1:1 to about 10:1, and has an average molecular weight of from about 800 to about 1,000,000. Other related compositions and methods for measuring electrical conductivity of liquids are also disclosed.