Patent ID: 9636895
Date: 2017-05-02
CPC Classifications: B32B,C09J,G09F,Y10S,Y10T

Claim:
1. A polymeric film for labeling articles, comprising: (A) a core layer having an upper surface and a lower surface and comprising up to 90% by weight of a propylene homopolymer, a propylene copolymer, a high density polyethylene, or a mixture of any of the foregoing polymers; (B) a print skin layer comprising a propylene homopolymer, a propylene copolymer, a high density polyethylene, or a mixture of any of the foregoing polymers and from 10% to 40% by weight based on the weight of layer (B) of a metal salt of an alkene-unsaturated carboxylic acid or acid derivative copolymer or a mixture thereof, wherein the print skin layer overlies the upper surface of the core layer; (C) an adhesive skin layer comprising at least 90% by weight propylene homopolymer, wherein the adhesive skin layer has an upper surface and a lower surface wherein the upper surface of the adhesive skin layer underlies the lower surface of the core layer; and (D) an adhesive layer having an upper and a lower surface, wherein the upper surface of the adhesive layer is adhesively joined to the lower surface of layer (C), wherein the adhesive layer is a hot melt adhesive, wherein the composition of layer (C) is different from the composition of layer (A), wherein the polymeric film has been oriented by uniaxial stretching in a machine direction, and wherein the propylene homopolymer of layer (C) consists of an isotactic propylene homopolymer having an isotactic stereoregularity greater than 90%.