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

Claim 0:
1. 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 defining an outermost surface of the laminated polyolefin-based film structure; and

a second film ply comprising:
a multilayer coextrusion, the multilayer coextrusion comprising:
a third layer formed of a polyolefin-based polymer 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, the first surface of the third layer facing toward the second surface of the first layer;
a fourth layer formed of a polyolefin-based polymer containing at least 90% by weight polyolefin homopolymers, copolymers, or terpolymers and less than 10% by weight other polymer compositions;
a polymer barrier layer disposed between the third layer and the fourth layer;
an optional first tie layer disposed intermediate the third layer and the barrier layer;
an optional second tie layer disposed intermediate the barrier layer and the fourth layer; 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, wherein the inorganic barrier layer is disposed between the first film ply and the multilayer coextrusion of the second film ply;

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