Patents Assigned to Agrium
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Controlled release fertilizer employing epoxidized fatty acid triglyceride oil as a coating additive
Patent number: 10202314Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by at least one coating comprising the reaction product of a mixture comprising a polyol, an isocyanate, a wax and an epoxidized fatty acid triglyceride oil.Type: GrantFiled: August 9, 2006Date of Patent: February 12, 2019Assignee: Agrium, Inc.Inventors: Baozhong Xing, Leslie L. Carstens, Nick P. Wynnyk -
Patent number: 9878959Abstract: The present invention is directed to a process for coating a substrate in a rotating drum, wherein a pocket is created in a substrate bed into which pocket coating materials are delivered. Also provided is a controlled release product produced according to this process, and an apparatus for carrying out the process.Type: GrantFiled: September 10, 2015Date of Patent: January 30, 2018Assignee: Agrium Inc.Inventors: Boazhong Xing, Lawrence A. Wilms, Nick P. Wynnyk, Robert G. Ford, Nicolette M. Babiak, J. David Eastham
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Publication number: 20160297725Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition. The controlled release fertilizer composition includes a fertilizer core that is coated with a polymeric layer, such as polyurethane, that includes a small molecule diol.Type: ApplicationFiled: May 16, 2014Publication date: October 13, 2016Applicant: Agrium U.S. Inc.Inventors: Young G No, Kai Chen, Sriramakrishna Maruvada
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Patent number: 8920829Abstract: A nutrient or medicinal composition for administration to ruminants, which includes a core of one or more biologically active substances coated with a film of polyurethane, overcoated with an “intermediate” wax is disclosed. This polyurethane/wax coating is resistant to rumen conditions, but will release the biologically active substance(s) in the abomasum and subsequent digestive tract of the ruminant animal.Type: GrantFiled: March 24, 2010Date of Patent: December 30, 2014Assignee: Agrium Advanced Technologies (U.S.) Inc.Inventor: Garrard L. Hargrove
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Patent number: 8888887Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating of a mixture including an isocyanate and a polyol, and further comprising a modified wax that may include a polyhydroxyl compound in which the wax and/or the polyhydroxyl compound are cross-linked with a sulfur or oxygen or a peroxide cross-linking moiety. In certain embodiments, the wax and polyhydroxyl compound are cross-linked at unsaturated sites in the wax or polyhydroxyl compound using heat, UV or ionizing radiation.Type: GrantFiled: November 8, 2011Date of Patent: November 18, 2014Assignee: Agrium Advanced Technologies (U.S.) Inc.Inventors: Garrard Lee Hargrove, Sriramakrishna Maruvada, Robert Scott Wilson, Nick Peter Wynnyk, Baozhong Xing
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Patent number: 8795406Abstract: 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.Type: GrantFiled: November 8, 2011Date of Patent: August 5, 2014Assignee: Agrium Advanced Technologies (U.S.) Inc.Inventors: Srirakrishna Maruvada, Nick Peter Wynnyk, Baozhong Xing
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Patent number: 8790437Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating which is the reaction product of a mixture including a cross-linked polyol, an isocyanate and a wax is described. The cross-linked polyol is a reaction product of a polyhydroxyl compound, such as glycerol, and a triglyceride and the monoglyceride and/or diglyceride products are cross-linked with sulfur, oxygen and/or a peroxide cross-linking moiety, or are directly cross-linked at unsaturated sites in the monoglycerides and/or diglycerides.Type: GrantFiled: November 8, 2011Date of Patent: July 29, 2014Assignee: Agrium Advanced Technologies (U.S.) Inc.Inventors: Romem Avdala, Leslie L. Carstens, Garrard Lee Hargrove, Sriramakrishna Maruvada, Baozhong Xing
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Patent number: 8741022Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.Type: GrantFiled: May 22, 2012Date of Patent: June 3, 2014Assignee: Agrium Inc.Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
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Patent number: 8741021Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.Type: GrantFiled: May 4, 2012Date of Patent: June 3, 2014Assignee: Agrium Inc.Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
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Publication number: 20120240648Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.Type: ApplicationFiled: May 4, 2012Publication date: September 27, 2012Applicant: Agrium, Inc.Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
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Publication number: 20120227451Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.Type: ApplicationFiled: May 22, 2012Publication date: September 13, 2012Applicant: Agrium Inc.Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
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Patent number: 8178161Abstract: The present invention relates to a process for producing a coated product comprising: (a) coating a substrate with a coating material to form a coated substrate; and (b) stabilizing the coated substrate to form the coated product; wherein the operating parameter of substrate-substrate contact and coated substrate-coated substrate contact differs between step a) and step b), such that in step b) the contact is minimized. An apparatus is also provided.Type: GrantFiled: March 22, 2010Date of Patent: May 15, 2012Assignee: Agrium Inc.Inventors: Baozhong Xing, J. David Eastham, Nick P. Wynnyk
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Publication number: 20120111075Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by, a coating of a mixture including an isocyanate and a polyol, and further comprising a modified wax that may include a polyhydroxyt compound in which the wax and/or the polyhydroxyl compound are cross-linked with a sulfur or oxygen or a peroxide cross-linking moiety. In certain embodiments, the wax and polyhydroxyl compound are cross-linked at unsaturated sites in the wax or polyhydroxyl compound using heat, UV or ionizing radiation.Type: ApplicationFiled: November 8, 2011Publication date: May 10, 2012Applicant: Agrium Advanced TechnologiesInventors: GARRARD LEE HARGROVE, Sriramakrishna Maruvada, Robert Scott Wilson, Nick Peter Wynnyk, Baozhong Xing
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Publication number: 20120111076Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating which is the reaction product of a mixture including a cross-linked polyol, an isocyanate and a wax is described. The cross-linked polyol is a reaction product of a polyhydroxyl compound, such as glycerol, and a triglyceride and the monoglyceride and/or diglyceride products are cross-linked with sulfur, oxygen and/or a peroxide cross-linking moiety, or are directly cross-linked at unsaturated sites in the monoglycerides and/or diglycerides.Type: ApplicationFiled: November 8, 2011Publication date: May 10, 2012Applicant: Agrium Advanced TechnologiesInventors: ROMEM AVDALA, Leslie L. Carstens, Garrard Lee Hargrove, Sriramakrishna Maruvada, Baozhong Xing
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Publication number: 20120111077Abstract: 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.Type: ApplicationFiled: November 8, 2011Publication date: May 10, 2012Applicant: Agrium Advanced TechnologiesInventors: Srirakrishna Maruvada, Nick Peter Wynnyk, Baozhong Xing
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Publication number: 20110296884Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.Type: ApplicationFiled: August 16, 2011Publication date: December 8, 2011Applicant: Agrium Inc.Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
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CONTROLLED RELEASE FERTILIZER EMPLOYING EPOXIDIZED FATTY ACID TRIGLYCERIDE OIL AS A COATING ADDITIVE
Publication number: 20100307211Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by at least one coating comprising the reaction product of a mixture comprising a polyol, an isocyanate, a wax and an epoxidized fatty acid triglyceride oil.Type: ApplicationFiled: August 9, 2006Publication date: December 9, 2010Applicant: AGRIUM INC.Inventors: Baozhong Xing, Leslie L. Carstens, Nick P. Wynnyk -
Publication number: 20100275665Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.Type: ApplicationFiled: July 9, 2010Publication date: November 4, 2010Applicant: AGRIUM INC.Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
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Publication number: 20100233325Abstract: A nutrient or medicinal composition for administration to ruminants, which includes a core of one or more biologically active substances coated with a film of polyurethane, overcoated with an “intermediate” wax is disclosed. This polyurethane/wax coating is resistant to rumen conditions, but will release the biologically active substance(s) in the abomasum and subsequent digestive tract of the ruminant animal.Type: ApplicationFiled: March 24, 2010Publication date: September 16, 2010Applicant: Agrium Advanced TechnologiesInventor: Garrard L. Hargrove
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Publication number: 20100233332Abstract: The present invention relates to a process for producing a coated product comprising: (a) coating a substrate with a coating material to form a coated substrate; and (b) stabilizing the coated substrate to form the coated product; wherein the operating parameter of substrate-substrate contact and coated substrate-coated substrate contact differs between step a) and step b), such that in step b) the contact is minimized. An apparatus is also provided.Type: ApplicationFiled: March 22, 2010Publication date: September 16, 2010Applicant: Agrium Inc.Inventors: Baozhong Xing, J. David Eastham, Nick P. Wynnyk