Patents by Inventor Stephen C. Lapin

Stephen C. Lapin 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).

  • Semi-interpenetrating polymer networks
    Patent number: 4654379
    Abstract: Semi-interpenetrating polymer networks which may be used as printing inks or as coatings are prepared by subjecting a mixture of a vinyl ether and a cellulose ester to irradiation from an electron beam. This mixture is curable with low energy dosages ranging from about 0.1 to about 10.0 Mrads, and from about 150 to about 300 Kev. The reaction is effected in the presence of a polymerization catalyst comprising an onium salt.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: March 31, 1987
    Assignee: Allied Corporation
    Inventor: Stephen C. Lapin