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:
Aug. 21, 1990
Filed:
Aug. 01, 1988
Applicant:
Inventors:
Charles J Hinrichsen, Houston, TX (US);
Frederick W Valone, Houston, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ; E21B / ;
U.S. Cl.
CPC ...
422 15 ; 252 80 ; 252-8552 ; 252-8555 ; 25238922 ; 562 12 ;
Abstract
A series of water-dispersible corrosion and scale inhibiting solutions are disclosed which contain the reaction product of a phosphonate compound containing at least two phosphonate groups of the formula ##STR1## and an ethoxylated, propoxylated alkylphenol amine represented by the formula ##STR2## wherein R is an alkyl group containing about 5 to about 12 carbon atoms, X equals about 1 to about 20, and z equals about 1 to about 20.