US 5,683,774 A · Durable, tamper resistant security laminate

Abstract

A security laminate comprising (1) a protective layer having a first and a second surface, (2) a pattern of low adhesion coating bonded to a portion of the second surface of the protective layer, (3) at least one emblem bonded to a portion of the low adhesion coating/protective layer composite, (4) an adhesive bonded to the emblem layer/low adhesion coating/protective layer composite, and (5) a primer is not included between the low adhesion coating and emblem layers; wherein the bond between the emblem and the protective layer and the bond between the adhesive layer and protective layer are the most tenacious bonds, and the bond between the low adhesion coating and the protective layer is the least tenacious, whereby the emblems and adhesive layers are damaged in the pattern of the low adhesion coating during delamination. Also, secured documents comprising such security laminates and a method for securing documents utilizing such security laminates.

Claims17

Dependent claims

A security laminate comprising:

(a) a protective layer having a major surface,
(b) a patterned low adhesion coating layer bonded to a portion of said major surface,
(c) a discontinuous emblem layer comprising at least one emblem, a portion of which is bonded to the major surface and a portion of which is bonded to the coating layer, and
(d) an adhesive layer bonded to the emblem layer, for bonding the laminate to an object;
wherein the bond between the coating layer and the protective layer is less tenacious than the bond between any other two layers of the laminate, whereby the emblem layer is damaged in the pattern of the low adhesion coating during delamination of the protective layer from the object to provide an indication of tampering.

2 more elements

Dependencies are inferred from the claim text.

Durable, tamper resistant security laminate

Life of this patent

Durable, tamper resistant security laminate

Life of this patent

Abstract

Claims17