Patents by Inventor W. Steven Boom

W. Steven Boom 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 preparation of anion exchange resins having very low chlorine content
    Patent number: 4785020
    Abstract: A method of preparing low chloride strong-base anion exchange resin is disclosed. The method involves a two-step amination of the haloalkylated copolymer beads at temperatures below 60.degree. C.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: November 15, 1988
    Assignee: The Dow Chemical Company
    Inventor: W. Steven Boom
  • Ion exchange process having increased flow rates
    Patent number: 4724082
    Abstract: A process for the increasing of the capacity of kinetics limited ion exchange column wherein an ion exchange resin impregnated with an insoluble, inorganic compound is employed. Because of the increased kinetics and density of the impregnated ion exchange resin, flow rates of the ion-containing medium through the resin may be increased. In addition, the insoluble, inorganic compound often removes certain specific materials from the aqueous stream.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: February 9, 1988
    Assignee: The Dow Chemical Company
    Inventor: W. Steven Boom
  • Process for separating salts in aqueous streams
    Patent number: 4478722
    Abstract: An improved ion retardation method for separating mixtures of salts in aqueous solution is disclosed. In this method, an ion retardation resin containing excess strong base groups is employed wherein the strong base groups have associated therewith a counteranion for which the strong base group has less affinity than for the anion of the salt which is last eluted from the resin.
    Type: Grant
    Filed: October 4, 1983
    Date of Patent: October 23, 1984
    Assignee: The Dow Chemical Company
    Inventor: W. Steven Boom