Patent ID: 9079374
Filing Date: 2015-07-14
Classification: B32B,Y10T

Abstract:
1. A sealable and peelable film coextrudate to facilitate sealing and peeling, consisting essentially of: a core layer; an outer sealing layer, wherein the outer sealing layer is positioned on a first side of the core layer, wherein the outer sealing layer is openable without creating a z-direction tear, a second layer, wherein the second layer is positioned on a second side of the core layer; and a peeling layer, wherein the peeling layer is positioned either between the core layer and the outer sealing layer or between the core layer and the second layer and wherein the peeling layer is directly adjacent to and in contact with the outer sealing layer or the second layer, wherein the peeling layer comprises at least one block copolymeric component comprising at least one olefinic component, wherein at least a substantial portion of the peeling layer is shielded from the external environment thereby enhancing the durability of the peeling layer, wherein the relative thickness ratio of the peeling layer to the outer sealing layer or the second layer is from about 1:8 to 3:1, wherein the thickness of the peeling layer is from 0.3 μm to 3 μm, wherein the film has a wide angle haze value of less than about 5, wherein the core layer is thicker than the outer sealing layer, second layer and peeling layer, and wherein the core layer, outer sealing layer, second layer and peeling layer are formed as a coextrudate.