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. 13, 1976
Filed:
Mar. 10, 1975
Applicant:
Inventors:
Dennis R Robitaille, Detroit, MI (US);
Mark S Vukasovich, Ann Arbor, MI (US);
Henry F Barry, Ann Arbor, MI (US);
Assignee:
The Sherwin-Williams Company, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C / ; C09C / ;
U.S. Cl.
CPC ...
106292 ; 106 14 ; 106306 ; 1062 / ; 106309 ;
Abstract
A method for preparing an extended corrosion inhibiting pigment for use in formulating protective coatings for ferrous substrates in which a particulated inert carrier is slurried in an aqueous solution in the presence of molybdic oxide, to which a metal oxide of zinc, calcium, strontium and/or barium is added in a manner to effect a deposition of the corresponding metal molybdate on the carrier particles, whereafter the coated carrier is separated, dried and calcined at an elevated temperature.