Patents by Inventor Ivan Hartley

Ivan Hartley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for reducing off-grade product production during reaction transitions
    Publication number: 20060276603
    Abstract: In some embodiments, a method for determining initial conditions for a transition from an initial reaction to a target reaction to minimize (or substantially minimize) the amount of off-grade material produced during the transition, and optionally also process control variables for implementing the transition. Some embodiments also include the steps of setting the reaction conditions to determined initial conditions and then implementing the transition.
    Type: Application
    Filed: June 3, 2005
    Publication date: December 7, 2006
    Inventors: Ivan Hartley, John Parrish, Rich Stolz
  • Use of instantaneous split to improve reactor control
    Publication number: 20050228150
    Abstract: A method of manufacturing a polymer composition that includes initiating a polymerization reaction at an initial set of polymerization parameters, determining an instantaneous split of the at least one property of an intermediate polymer composition, and adjusting the initial set of polymerization parameters based on the instantaneous split of the at least one property to obtain a desired distribution of the at least one property in the polymer composition.
    Type: Application
    Filed: April 13, 2005
    Publication date: October 13, 2005
    Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION
    Inventors: John Parrish, William Sachs, Ivan Hartley, Paul Samples