Patents by Inventor Leo H. Broering

Leo H. Broering 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).

  • Process for regulating particle size of finely divided thermoplastic resins
    Patent number: 4252969
    Abstract: Powders of thermoplastic resins such as polyethylene homopolymer and ethylene-vinyl acetate copolymer having controlled average particle sizes are obtained by agitating molten resin in admixture with water in the presence of a dispersing amount of a polyalkylene oxide surface active agent and a particle size-controlling amount of an alkanolamide surface active agent.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: February 24, 1981
    Assignee: National Distillers and Chemical Corp.
    Inventors: Leo H. Broering, Gary W. Duncan
  • Melt dispersion saponification of ethylene-vinyl acetate polymer
    Patent number: 4104453
    Abstract: This invention relates to a new and useful process for the production of saponified ethylene-vinyl acetate polymers in the form of finely divided particles by dispersing the saponified polymer in the presence of an ethylene oxide-propylene oxide block copolymer and at least one other anionic dispersant selected from the group consisting of the salt of a polycarboxylic acid and a condensed arylsulfonate salt.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: August 1, 1978
    Assignee: National Distillers and Chemical Corporation
    Inventors: Leo H. Broering, Gary W. Duncan