Patents Represented by Attorney James P. O. O'Sullivan
  • Patent number: 4064312
    Abstract: A process for preparing a waterless lithographic printing master is provided. A suitable substrate, which is preferably ink accepting is first coated with a curable silicone which is curable at low or elevated temperature and a second different curable silicone deposited on said first silicone which can be preferentially cured at a lower temperature without curing the first silicone and which second silicone contains, in addition to its own catalyst, an amount of high temperature curing catalyst sufficient to cure the underlying silicone. The surface silicone is then preferentially cured at least on its surface to render it nontacky, but not the underlying silicone.
    Type: Grant
    Filed: March 14, 1975
    Date of Patent: December 20, 1977
    Assignee: Xerox Corporation
    Inventor: Richard G. Crystal