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. 10, 1990
Filed:
Apr. 03, 1989
Applicant:
Inventors:
Stanlay J Ciuba, Burnsville, MN (US);
Guillermo C Etienne, St. Louis Park, MN (US);
Assignee:
Drew Chemical Corporation, Boonton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
2523893 ; 2523894 ; 252387 ;
Abstract
A solid cast block of corrosion inhibitor composition, comprising: (i) about 5 to 20 wt-% silicate, calculated as sodium metasilicate pentahydrate; (ii) about 5 to 90 wt-% borate, calculated as sodium tetraborate pentahydrate; (iii) about 0.5 to 5 wt-% polymeric dispersant such as polyacrylamide; and (iv) a sufficient solidifying amount of water.