×

Holographic film and method for forming

  • US 5,643,678 A
  • Filed: 10/10/1995
  • Issued: 07/01/1997
  • Est. Priority Date: 04/04/1994
  • Status: Expired due to Fees
First Claim
Patent Images

1. A composite sheet comprising:

  • (a) a thermoplastic substrate;

    (b) a release coating having a thickness of 0.025 microns to 5 microns affixed to said substrate;

    (c) a coating of hard lacquer having a thickness in the range of 0.5 microns to 5 microns affixed to said release coating, said hard lacquer having a glass transition temperature of at least 80°

    C.;

    (d) a coating of soft lacquer having a thickness in the range of 0.5 microns to 5 microns affixed to said hard lacquer coating, said soft lacquer having a glass transition temperature no higher than 70°

    C.;

    (e) a layer of metal having a thickness in the range of 20 millimicrons to 100 millimicrons affixed to said soft lacquer coating; and

    (f) an embossment receiving coating having a thickness in the range of 0.025 micron to 1 micron affixed to said layer of metal, said embossment receiving coating being an esterified montan wax.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×