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:
Feb. 04, 1997
Filed:
Sep. 23, 1994
Applicant:
Inventor:
John H Detrick, Birmingham, AL (US);
Assignee:
RLC Technologies, L.L.C., Sylacauga, AL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C05C / ; C05G / ;
U.S. Cl.
CPC ...
71 28 ; 71 6407 ; 71 6411 ; 71 6413 ;
Abstract
The present invention describes a sulfur-coated urea slow release granular fertilizer having a uniform, durable polymeric coating over the sulfur-coating. The polymer coating is formed by the direct in situ co-polymerization of diethylene glycol-triethanolamine polyol and a diisocyanate on the surface of the sulfur-coated urea granule. The polymeric coating provides improved impact resistance of the composite coated granule.