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:
Mar. 02, 1976
Filed:
Sep. 23, 1971
Applicant:
Inventors:
Gerald L Tucker, Yazoo City, MI (US);
Elmer Ladelle Blanton, Yazoo City, MI (US);
Assignee:
Mississippi Chemical Corporation, Yazoo City, MS (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C05C / ; C07C / ;
U.S. Cl.
CPC ...
71 28 ; 71 6 / ; 71 6 / ; 71 6 / ; 2605 / ;
Abstract
Urea particles uniformly coated with zinc oxide having excellent adherence and uniformity of the zinc oxide coating are obtained by using a zinc oxide composition characterized by having a purity of 90 to 99% zinc oxide and a uniform particle size of at least 90% smaller than 12 microns and at least 95% smaller than 37 microns. Outstanding coatings are obtained if the zinc oxide composition additionally contains traces of carbon, iron oxide, magnesium oxide, or calcium oxide. High zinc-content coatings of excellent uniformity and adherence may be obtained with these coating compositions.