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:
Aug. 05, 2014
Filed:
Nov. 08, 2011
Applicants:
Srirakrishna Maruvada, Birmingham, AL (US);
Nick Peter Wynnyk, Edmonton, CA;
Baozhong Xing, Loveland, CO (US);
Inventors:
Srirakrishna Maruvada, Birmingham, AL (US);
Nick Peter Wynnyk, Edmonton, CA;
Baozhong Xing, Loveland, CO (US);
Assignee:
Agrium Advanced Technologies (U.S.) Inc., Loveland, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C05D 9/00 (2006.01); C05D 9/02 (2006.01); C01C 1/18 (2006.01); A01N 25/00 (2006.01); C05G 3/00 (2006.01); C05C 9/00 (2006.01); C08G 18/36 (2006.01); C08G 18/38 (2006.01); C08G 75/04 (2006.01); C08G 75/26 (2006.01); C08G 75/00 (2006.01); C07C 327/22 (2006.01);
U.S. Cl.
CPC ...
C05G 3/0029 (2013.01); C05G 3/0035 (2013.01); C05G 3/0023 (2013.01); C05C 9/00 (2013.01); C08G 18/36 (2013.01); C08G 18/3868 (2013.01); C08G 75/04 (2013.01); C08G 75/26 (2013.01); C08G 75/00 (2013.01); C07C 327/22 (2013.01);
Abstract
A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating including a mixture of a cross-linked polyol and an isocyanate, and optionally a wax, is described. In some embodiments, the cross-linked polyol can be cross-linked with sulfur, oxygen, and/or a peroxide cross-linking moiety. In one embodiment the cross-linked polyol is castor oil cross-linked with sulfur.