Patents Assigned to Schoeller Technical Papers Company
  • Textured photographic base paper process and product
    Patent number: 3959546
    Abstract: A polyolefin coated photographic base paper having a silk-like textured surface is prepared by extrusion coating the polyethylene on the photographic paper and, while the polyolefin is still plastic, forming the surface of the polyolefin on an engraved chill roll. Pattern depths of 0.4 to 0.7 mils can be produced on the polyolefin surface by this process using polyolefin films as thin as one mil.
    Type: Grant
    Filed: April 15, 1974
    Date of Patent: May 25, 1976
    Assignee: Schoeller Technical Papers Company
    Inventor: John A. Hill