Patent ID: 11945198
Assignee: PROAMPAC HOLDINGS INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C | IPC B

Claim 10:
11. A laminated polyolefin-based film structure comprising:
a first film ply comprising:
a first layer formed of a polyolefin-based film containing at least 90% by weight polyolefin homopolymers, copolymers, or terpolymers and less than 10% by weight other polymer compositions, the first layer having a first surface and a second surface opposite the first surface; and
a second layer disposed on the first surface of the first layer, the second layer comprising an energy-cured coating; and

a second film ply comprising:
a third layer formed of a polyolefin-based film containing at least 90% by weight polyolefin homopolymers, copolymers, or terpolymers and less than 10% by weight other polymer compositions, the third layer having a first surface and a second surface opposite the first surface;

a third film ply interposed between the first film ply and the second film ply, the third film ply comprising:
a fourth layer formed of a polyolefin-based film containing at least 90% by weight polyolefin homopolymers, copolymers, or terpolymers and less than 10% by weight other polymer compositions, the fourth layer having a first surface and a second surface opposite the first surface; and
a first inorganic barrier layer selected from the group consisting of a metal oxide layer, a metallization layer, silicon oxide layer, an aluminum oxide layer, and an aluminum metallized layer;

a first adhesive layer interposed between the first film ply and the third film ply, the first adhesive layer laminating the first film ply to the third film ply, wherein the first surface of the fourth layer faces the second surface of the first layer;
a second adhesive layer interposed between the third film ply and the second film ply, the second adhesive layer laminating the third film ply to the second film ply, wherein the first surface of the third layer faces the second surface of the fourth layer; and
a printed layer disposed intermediate the first layer and the third layer.