CROSS-LINKED POLYOL COATED RELEASE FERTILIZERS - AGRIUM ADVANCED TECHNOLOGIES

Title:

CROSS-LINKED POLYOL COATED RELEASE FERTILIZERS

Document Type and Number:

WIPO Patent Application WO/2012/064730

Kind Code:

A3

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.

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Inventors:

MARUVADA SRIRAMAKRISHNA (US)
WYNNYK NICK P (CA)
XING BAOZHONG (US)

Application Number:

PCT/US2011/059766

Publication Date:

March 28, 2013

Filing Date:

November 08, 2011

Export Citation:

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Assignee:

AGRIUM ADVANCED TECHNOLOGIES (US)
MARUVADA SRIRAMAKRISHNA (US)
WYNNYK NICK P (CA)
XING BAOZHONG (US)

International Classes:

C05G3/00; C08G71/04

Domestic Patent References:

WO2005080325A2	2005-09-01
WO2008106637A1	2008-09-04

Foreign References:

US20060111520A1	2006-05-25
DE102008000595A1	2009-09-17

Attorney, Agent or Firm:

BUSSE, Paul W. et al. (PLLCSuite 200, Maple Island Building,221 Main Street Nort, Stillwater Minnesota, US)

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