Patents Assigned to Agrium, Inc.
  • Controlled release fertilizer employing epoxidized fatty acid triglyceride oil as a coating additive
    Patent number: 10202314
    Abstract: 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: Grant
    Filed: August 9, 2006
    Date of Patent: February 12, 2019
    Assignee: Agrium, Inc.
    Inventors: Baozhong Xing, Leslie L. Carstens, Nick P. Wynnyk
  • CONTROLLED RELEASE FERTILIZER COMPOSITION
    Publication number: 20120240648
    Abstract: 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: Application
    Filed: May 4, 2012
    Publication date: September 27, 2012
    Applicant: Agrium, Inc.
    Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
  • PROCESS AND APPARATUS FOR COATING A CONTROLLED RELEASE PRODUCT IN A ROTATING DRUM
    Publication number: 20100186470
    Abstract: 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: Application
    Filed: April 8, 2010
    Publication date: July 29, 2010
    Applicant: Agrium, Inc.
    Inventors: Boazhong Xing, Lawrence Arthur Wilms, Nick Peter Wynnyk, Robert Glen Ford, Nicolette Mary Babiak, J. David Eastham
  • Controlled Release Fertilizer And Method For Production Thereof
    Publication number: 20070137274
    Abstract: 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: Application
    Filed: September 5, 2006
    Publication date: June 21, 2007
    Applicant: AGRIUM, INC.
    Inventors: Nick Wynnyk, Eugene Stelmack, Nicolette Babiak, Leslie Carstens, Baozhong Xing, Albert Geiger, J. Eastham
  • Controlled release fertilizer and method for production thereof
    Patent number: 6663686
    Abstract: 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: Grant
    Filed: June 27, 2000
    Date of Patent: December 16, 2003
    Assignee: Agrium, Inc.
    Inventors: Albert J. Geiger, Eugene G. Stelmack, Nicolette M. Babiak
  • Process for the recovery of phosphate from phosphate rock
    Patent number: 6562308
    Abstract: 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: Grant
    Filed: November 15, 2000
    Date of Patent: May 13, 2003
    Assignee: Agrium, Inc.
    Inventors: Leslie L. Carstens, Nick P. Wynnyk
  • Enhancement of conifer seedling growth
    Patent number: 5640803
    Abstract: A method for growing a conifer seedling includes selecting and treating a conifer seed, prior to planting thereof, with a Coryneform, Pseudomonas or Serratia bacterial strain that enhances the root growth of that conifer seedling. Additionally, transplanted conifer seedlings may be grown by treating their roots with root growth-enhancing Coryneform, Pseudomonas and Serratia strains and conifer seeds may be modified by treatment with those strains.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: June 24, 1997
    Assignee: Agrium, Inc.
    Inventors: Joseph W. Kloepper, Elizabeth M. Tipping