Patents Assigned to Agrium, Inc.
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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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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: 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: 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
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Patent number: 7771505Abstract: 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: July 16, 2008Date of Patent: August 10, 2010Assignee: Agrium Inc.Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
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Publication number: 20100186470Abstract: 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: ApplicationFiled: April 8, 2010Publication date: July 29, 2010Applicant: Agrium, Inc.Inventors: Boazhong Xing, Lawrence Arthur Wilms, Nick Peter Wynnyk, Robert Glen Ford, Nicolette Mary Babiak, J. David Eastham
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Patent number: 7713326Abstract: Thiol ester compositions, methods of making the thiol ester compositions, and methods of using the thiol ester compositions are provided. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters and cross-linked thiol esters. The thiol ester composition can be used to produce cross-linked thiol esters, sulfonic acid-containing esters, sulfonate containing esters and thioacrylate containing esters. The thiol ester compositions can be used to produce polythiourethanes. The polythiourethanes can be used in fertilizers and fertilizer coatings.Type: GrantFiled: February 17, 2005Date of Patent: May 11, 2010Assignee: Agrium Inc.Inventors: Leslie E. Carstens, Baozhong Xing, Mitchell D. Refvik, Jim D. Byers
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Publication number: 20080236228Abstract: 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.Type: ApplicationFiled: June 10, 2008Publication date: October 2, 2008Applicant: AGRIUM INC.Inventors: Albert J. Geiger, Eugene G. Stelmack, Nicolette M. Babiak
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Publication number: 20070137274Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating comprising at least one substantially homogeneous layer of a urethane-containing compound and an organic additive. With appropriate selection of the additive, the shape and duration of the release profile can be modified to suit a wide variety of applications.Type: ApplicationFiled: September 5, 2006Publication date: June 21, 2007Applicant: AGRIUM, INC.Inventors: Nick Wynnyk, Eugene Stelmack, Nicolette Babiak, Leslie Carstens, Baozhong Xing, Albert Geiger, J. Eastham
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Publication number: 20040045331Abstract: 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.Type: ApplicationFiled: September 11, 2003Publication date: March 11, 2004Applicant: Agrium Inc.Inventors: Albert J. Geiger, Eugene G. Stelmack, Nicolette M. Babiak
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Patent number: 6663686Abstract: 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.Type: GrantFiled: June 27, 2000Date of Patent: December 16, 2003Assignee: Agrium, Inc.Inventors: Albert J. Geiger, Eugene G. Stelmack, Nicolette M. Babiak
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Patent number: 6562308Abstract: There is disclosed a wet process for the recovery of phosphate from phosphate rock which comprises leaching finely divided particles of phosphate rock with a protic acid at a temperature and for a time that favours dissolution, into a leachate, of the phosphate in relation to an impurity, and, isolating the leachate. An appropriate combination of particle size, leach time and leach temperature can achieve high phosphate recovery while reducing the amount of impurities.Type: GrantFiled: November 15, 2000Date of Patent: May 13, 2003Assignee: Agrium, Inc.Inventors: Leslie L. Carstens, Nick P. Wynnyk
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Patent number: 5935839Abstract: In accordance with the present invention it has been found that the growth of conifer seedlings in the greenhouses and in the field can be enhanced when inocula comprising selected bacterial strain are employed. In particular, bacterial strains Arthrobacter sp. 44-9 ATCC 55035 and Pseudomonas fluorescencs 36-43 ATCC 55034. Bacterial strains can promote the growth of conifer seedlings at cold temperature and mildly acidic environments characteristic of conifer soils.Type: GrantFiled: June 23, 1997Date of Patent: August 10, 1999Assignee: Agrium Inc.Inventors: Joseph W. Kloepper, Elizabeth M. Tipping