Patents by Inventor Gerald W. Ernest

Gerald W. Ernest 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).

  • Free flowing rigid PVC resin powder compositions
    Patent number: 4310451
    Abstract: The free-flow characteristics and processing performance of filled, rigid powder compositions of mass-polymerized PVC resin are improved by incorporating a minor quantity of glycerin into the formulation during the blending operation, said quantity of glycerin ranging from about 0.1 part to 0.5 part per 100 parts of resin, by weight.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: January 12, 1982
    Assignee: Diamond Shamrock Plastics Corporation
    Inventors: Gerald W. Ernest, James R. DeFife