Patents by Inventor Stephen B. Wallace

Stephen B. Wallace 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).

  • Patent number: 9695271
    Abstract: A continuous process comprising a) separating an epoxy novolac resin comprising oligomers having an average functionality of greater than 2.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: July 4, 2017
    Assignee: BLUE CUBE IP LLC
    Inventors: William W. Fan, Dennis W. Jewell, Stephen B. Wallace, Marvin L. Dettloff, Travis H. Larsen
  • Patent number: 9644067
    Abstract: A continuous process comprising: a) separating a starting epoxy novolac resin comprising oligomers having an average functionality of greater than 2.5 and a hydrolyzable chlorine content of less than 450 ppm with a first continuous evaporator apparatus under a vaporization temperature in the range of from 150° C. to 250° C. and an absolute pressure of from 0.05 to 1 mmHg absolute to form a first vapor fraction comprising epoxy novolac resin having more than 95 weight percent of 2-functional components and wherein the mass of the first vapor fraction is in the range of from 5 to 20 weight percent of the starting epoxy novolac resin; and a first bottom fraction comprising epoxy novolac resin having a lower weight percent of 2-functional components in comparison with the weight percent of 2-functional components of the starting epoxy novolac resin; b) recovering the first bottom fraction; and c) condensing from 95 weight percent to 99.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 9, 2017
    Assignee: BLUE CUBE IP LLC
    Inventors: William W. Fan, Dennis W. Jewell, Stephen B. Wallace, Travis H. Larsen
  • Publication number: 20160304660
    Abstract: A continuous process comprising a) separating an epoxy novolac resin comprising oligomers having an average functionality of greater than 2.
    Type: Application
    Filed: December 17, 2014
    Publication date: October 20, 2016
    Inventors: William W. Fan, Dennis W. Jewell, Stephen B. Wallace, Marvin L. Dettloff, Travis H. Larsen
  • Publication number: 20160304661
    Abstract: A continuous process comprising: a) separating a starting epoxy novolac resin comprising oligomers having an average functionality of greater than 2.5 and a hydrolyzable chlorine content of less than 450 ppm with a first continuous evaporator apparatus under a vaporization temperature in the range of from 150° C. to 250° C. and an absolute pressure of from 0.05 to 1 mmHg absolute to form a first vapor fraction comprising epoxy novolac resin having more than 95 weight percent of 2-functional components and wherein the mass of the first vapor fraction is in the range of from 5 to 20 weight percent of the starting epoxy novolac resin; and a first bottom fraction comprising epoxy novolac resin having a lower weight percent of 2-functional components in comparison with the weight percent of 2-functional components of the starting epoxy novolac resin; b) recovering the first bottom fraction; and c) condensing from 95 weight percent to 99.
    Type: Application
    Filed: December 17, 2014
    Publication date: October 20, 2016
    Inventors: William W. Fan, Dennis W. Jewell, Stephen B. Wallace, Travis H. Larsen
  • Patent number: 4568418
    Abstract: Thermoplastic polymer solutions in organic solvents are converted to granules of relatively uniform sizes and a narrow distribution range by passing the polymer solution through a jet nozzle to form a high velocity stream, injecting super heated steam into the high velocity stream to form a suspension of fine polymer particulates in a gas stream, passing the particulates into a heated agglomeration tube having a series of adjoining circular turns of at least 180.degree. wherein the particulates are substantially completely agglomerated into granules and the granules are recovered from the gas stream.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: February 4, 1986
    Assignee: The Dow Chemical Company
    Inventors: Lee E. Walko, Stephen B. Wallace, Norman Swanson, Roy M. Cook