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1. US20040045331 - Controlled release fertilizer and method for production thereof

Office
United States of America
Application Number 10659432
Application Date 11.09.2003
Publication Number 20040045331
Publication Date 11.03.2004
Publication Kind A1
IPC
C05C 9/00
CCHEMISTRY; METALLURGY
05FERTILISERS; MANUFACTURE THEREOF
CNITROGENOUS FERTILISERS
9Fertilisers containing urea or urea compounds
C05G 3/00
CCHEMISTRY; METALLURGY
05FERTILISERS; MANUFACTURE THEREOF
GMIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C0595; MIXTURES OF ONE OR MORE FERTILISERS WITH ADDITIVES NOT HAVING A SPECIFIC FERTILISING ACTIVITY; FERTILISERS CHARACTERISED BY THEIR FORM
3Mixtures of one or more fertilisers with additives not having a specifically fertilising activity
C05G 5/00
CCHEMISTRY; METALLURGY
05FERTILISERS; MANUFACTURE THEREOF
GMIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C0595; MIXTURES OF ONE OR MORE FERTILISERS WITH ADDITIVES NOT HAVING A SPECIFIC FERTILISING ACTIVITY; FERTILISERS CHARACTERISED BY THEIR FORM
5Fertilisers characterised by their form
C08G 18/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
C08G 18/36
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
30Low-molecular-weight compounds
36Hydroxylated esters of higher fatty acids
Applicants Agrium Inc.
Inventors Geiger Albert J.
Stelmack Eugene G.
Babiak Nicolette M.
Agents PATENT ADMINSTRATOR KATTEN MUCHIN ZAVIS ROSENMAN
Title
(EN) Controlled release fertilizer and method for production thereof
Abstract
(EN)

A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating which is the reaction product of a mixture comprising: a polyol, an isocyanate and an organic wax.