Polymeric films
Multi-layer polymeric films having at least one skin layer comprising at least one polyhydroxyether component or a combination of at least one polyhydroxyether component and at least polyester component are provided. The multi-layer films exhibit advantages such as high surface energy contributing to improved printability, barrier properties, and metallization. Additionally, the films exhibit improved adhesion between the skin layer and other layers of multi-layer film structures. In certain embodiments, the at least one skin layer incorporates from about 70 wt. % to about 100 wt. % of the at least one polyhydroxyether component or the combination of the at least one polyhydroxyether component and the at least one polyester component. The combination of the at least one polyhydroxyether component and the at least one polyester component incorporates from about 1 wt. % to about 99.0 wt. % of the at least one polyhydroxyether component and from about 1 wt. % to about 99 wt. % of the at least one polyester component.
1. A multilayer polymer film comprising:
(a) a film substrate comprising a tie layer, said tie layer comprising a tie resin having acid or anhydride functional groups; and
(b) a first skin layer comprising at least one polyhydroxyether having hydroxyl groups;
wherein said multilayer polymer film is biaxially oriented, and wherein the peel strength between said first skin layer and said film substrate is greater than 40.0 g/cm.
2. The multilayer polymer film of claim 1 , wherein said at least one polyhydroxyether is selected from the group consisting of poly(hydroxyl amino ether), poly(hydroxyl amide ether), poly(hydroxyl ether of Bisphenol A), and blends thereof.
3. The multilayer polymer film of claim 2 , wherein said first skin layer further comprises at least one polyester.
4. The multilayer polymer film of claim 3 , wherein said at least one polyester is selected from the group consisting of homopolyesters, copolyesters, and blends thereof.
5. The multilayer polymer film of claim 3 , wherein said at least one polyhydroxyether is selected from the group consisting of poly(hydroxyl amino ether), poly(hydroxyl amide ether), and blends thereof, said at least one polyester is poly(ethylene terephthalate glycol).
6. The multilayer polymer film of claim 1 , wherein said polyhydroxyether comprising about 70 wt. % to about 100 wt. % of said first skin layer.
7. The multilayer polymer film of claim 3 , wherein said combination of at least one polyhydroxyether and at least one polyester comprises from about 1 wt. % to about 99 wt. % of said at least one polyhydroxyether and from about 1 wt. % to about 99 wt. % of said at least one polyester.
8. The multilayer polymer film of claim 3 , wherein said combination of said at least one polyhydroxyether and at least one polyester comprises from about 1 wt. % to about 30 wt. % of said at least one polyhydroxyether and from about 70 wt. % to about 99 wt. % of said at least one polyester.
9. The multilayer polymer film of claim 3 , wherein the oxygen transmission rate of the multilayer polymer film produced is below 1,700 cc/m 2 /24 hr at 23° C. (73.4° F.) and 0% RH.
10. The multilayer polymer film of claim 1 , wherein said film substrate further comprises a first polymeric material selected from the group consisting of propylene homopolymers, propylene copolymers, ethylene homopolymers, ethylene copolymers, polar modified polyolefins, polyesters, polyamides, polystyrenes, ethylene-vinyl alcohol copolymers, and blends thereof.
11. The multilayer polymer film of claim 10 , wherein said film substrate further comprises a second polymeric material selected from the group consisting of propylene homopolymers, propylene copolymers, ethylene homopolymers, ethylene copolymers, polar modified polyolefins, polyesters, polyamides, polystyrenes, ethylene-vinyl alcohol copolymers, and blends thereof.
12. The multilayer polymer film of claim 1 , wherein said film substrate further comprises a core layer, said core layer comprising propylene homopolymers, propylene copolymers, or blends thereof.
13. The multilayer polymer film of claim 12 , wherein said tie layer is disposed between the core layer and the first skin layer.
14. The multilayer polymer film of claim 1 , wherein said peel strength is greater than 50.0 g/cm.
15. The multilayer polymer film of claim 1 , wherein said film substrate further comprises a second skin layer opposite the first skin layer, the second skin layer comprising a second polymeric material selected from the group consisting of propylene homopolymers, propylene copolymers, ethylene homopolymers, ethylene copolymers, ethylene/propylene/butene terpolymers, polar modified polyolefins, and blends thereof.
16. The multilayer polymer film of claim 1 , wherein said multilayer polymer film is opaque.
17. The multilayer polymer film of claim 1 , wherein said at least one substrate layer is voided.
18. A package comprising said multilayer polymer film of claim 1 , wherein said multilayer polymer film is formed into a package.
19. A label comprising said multilayer polymer film of claim 1 , wherein said multilayer polymer film is formed into a label.
20. A multilayer polymer film comprising:
(a) a film substrate comprising at least one tie layer, said tie layer comprising a tie resin having acid or anhydride functional groups;
(b) a first skin layer comprising a combination of at least one polyhydroxyether and at least one polyester, said polyhydroxyether having hydroxyl groups, wherein said at least one polyhydroxyether is selected from the group consisting of poly(hydroxyl amino ether), poly(hydroxyl amide ether), and blends thereof;
wherein said multilayer polymer film is biaxially oriented, wherein the peel strength between said first skin layer and said film substrate is greater than 40.0 g/cm; and
whereby the oxygen transmission rate of the multilayer polymer film produced is below 1,700 cc/m 2 /24 hr at 23° C. (73.4° F.) and 0% RH.
21. The multilayer polymer film of claim 20 , wherein at least one polyester is poly(ethylene terephthalate glycol).
22. The multilayer polymer film of claim 20 , wherein said combination of at least one polyhydroxyether and at least one polyester comprises from about 1 wt. % to about 99 wt. % of said at least one polyhydroxyether and from about 1 wt. % to about 99 wt. % of said at least one polyester.
23. A package comprising said multilayer polymer film of claim 20 , said multilayer polymer film is formed into a package.
24. A label comprising said multilayer polymer film of claim 20 , said multilayer polymer film is formed into a label.