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. 14, 1989
Filed:
Aug. 06, 1987
Applicant:
Inventor:
William P Moore, Hopewell, VA (US);
Assignee:
Melamine Chemicals, Inc., Donaldsonville, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C05C / ; C05C / ;
U.S. Cl.
CPC ...
71 28 ; 71 29 ; 71 30 ; 71 6411 ; 71 6412 ;
Abstract
An attrition-resistant, controlled release fertilizer comprising a water-soluble central mass containing nucleophilic reactive functional groups surrounded and chemically bonded to a base coating formed by reacting a molecular excess of a coupling agent with the nucleophilic groups of the central particles, and a water-insoluble layer, surrounding and chemically bonded with the base coating, formed by the reaction and polymerization of the excess functional groups of the coupling agent used in forming the base coating is described. A preparation method is provided.