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:
May. 18, 1993
Filed:
Oct. 09, 1991
Applicant:
Inventors:
Arthur R Shirley, Jr, Florence, AL (US);
Keith D Cochran, Florence, AL (US);
Terence B Lynch, London, CA;
Russell I Derrah, Oakville, CA;
Sayeeda J Quadir, Etobicoke, CA;
Zdzislaw M Tulimowski, Sarnia, CA;
Assignee:
ICI Canada, Inc., Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427213 ; 427221 ; 71 6402 ; 71 6406 ; 71 6407 ; 118303 ; 118D / ;
Abstract
An apparatus and method for continuously producing polymer coated particles, and in particular, a polymer coated fertilizer, wherein the coating material used is, for example, an aqueous film forming latex. The coating process is conducted with a plurality of fluidized beds, connected in series, under conditions such that, preferably, the relative humidity of the air in the initial coating zones is maintained below the critical relative humidity of the particle to be coated.