Patents by Inventor Alvin W. Baker

Alvin W. Baker 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).

  • Toughening of cured vinyl ester resins by inclusion in the uncured resins of oligomeric vinyl-reactive urethanes which phase out upon curing
    Patent number: 4824919
    Abstract: Vinyl ester/styrene mixtures are flexibilized by addition thereto of minor amounts of urethanes which (1) comprise at least one polyglycol moiety and two urethane groups and are terminated by vinyl-reactive end groups, and (2) form a dispersed second phase in the cured mixture. The flexibilized compositions otherwise largely retain the characteristic properties of the unflexibilized mixtures.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: April 25, 1989
    Assignee: The Dow Chemical Company
    Inventors: Alvin W. Baker, Patrick H. Martin
  • Method of converting resin solution to aqueous dispersion
    Patent number: 4383056
    Abstract: Solutions of amine-salified phosphoresins and the free amine in organic solvents are converted to stable dispersions of the salified resins in water by steam stripping under conditions such that at least part of the water is provided as condensed steam.
    Type: Grant
    Filed: December 10, 1981
    Date of Patent: May 10, 1983
    Assignee: The Dow Chemical Company
    Inventors: Alvin W. Baker, Robert DeVellis, Patrick H. Martin, Robin A. Withers