Film with improved antiblocking and adhesion properties

1 . A multilayer plastic film including a core layer and opposed skin layers, one of said skin layers including a blend of more than 50% by weight of the skin layer of a high-density ethylene polymer and less than 50% by weight of the skin layer of a polar polymer, said one of said skin layers being sufficiently active to effectively bond to an extruded, heat-sealable layer of a polar, ionomer resin without a primer between said skin layer and ionomer resin.

2 . The plastic film of claim 1 , said one of said skin layers being sufficiently active to bond to an extruded, heat-sealable layer of a polar, ionomer resin with a bond strength in excess of 200 grams/inch without a primer between said skin layer and ionomer resin.

3 . The plastic film of claim 1 , said one of said skin layers being sufficiently active to bond to an extruded, heat-sealable layer of a polar, ionomer resin with a bond strength in excess of 600 grams/inch without a primer between said skin layer and ionomer resin.

4 . The plastic film of claim 1 , said one of said skin layers being sufficiently active to bond to an extruded, heat-sealable layer of a polar, ionomer resin with a bond strength in excess of 1000 grams/inch without a primer between said skin layer and ionomer resin.

5 . The plastic film of claim 1 , including a heat-sealable layer of a polar, ionomer resin on said one of said skin layers.

6 . The plastic film of claim 2 , including a heat-sealable layer of a polar, ionomer resin on said one of said skin layers.

7 . The plastic film of claim 3 , including a heat-sealable layer of a polar, ionomer resin on said one of said skin layers.

8 . The plastic film of claim 4 , including a heat-sealable layer of a polar, ionomer resin on said one of said skin layers.

9 . The plastic film of claim 1 , wherein said polar polymer is a functionally modified ethylene copolymer.

10 . The plastic film of claim 2 , wherein said polar polymer is a functionally modified ethylene copolymer.

11 . The plastic film of claim 3 , wherein said polar polymer is a functionally modified ethylene copolymer.

12 . The plastic film of claim 4 , wherein said polar polymer is a functionally modified ethylene copolymer.

13 . The plastic film of claim 1 , wherein said polar polymer is an acid modified ethylene acrylate.

14 . The plastic film of claim 2 , wherein said polar polymer is an acid modified ethylene acrylate.

15 . The plastic film of claim 1 , wherein said polar polymer is an ethylene methyl acrylate.

16 . The plastic film of claim 2 , wherein said polar polymer is an ethylene methyl acrylate.

17 . The plastic film of claim 1 , wherein said high density ethylene polymer has a melt index of greater than 0.5 g/10 minutes.

18 . The plastic film of claim 1 , wherein said high density ethylene polymer has a melt index of at least 2.0 g/10 minutes.

19 . The plastic film of claim 1 , wherein said high density ethylene polymer has a melt index of at least 5.0 g/10 minutes.

20 . The plastic film of claim 1 , wherein said one of said skin layers includes a blend of at least 75% by weight of the skin layer of a high-density ethylene polymer and no more than 25% by weight of the skin layer of a polar polymer.

21 . The plastic film of claim 1 , wherein said one of said skin layers includes a blend of more than 75% by weight of the skin layer of a high-density ethylene polymer and less than 25% by weight of the skin layer of a polar polymer.

22 . The plastic film of claim 1 , wherein said one of said skin layers includes a blend of at least 87.5% by weight of the skin layer of a high-density ethylene polymer and no more than 12.5% by weight of the skin layer of a polar polymer.

23 . The plastic film of claim 1 , wherein said one of said skin layers includes a blend of more than 90% by weight of the skin layer of a high-density ethylene polymer and less than 10% by weight of the skin layer of a polar polymer.

24 . The plastic film of claim 2 , wherein said one of said skin layers includes a blend of at least 75% by weight of the skin layer of a high-density ethylene polymer and no more than 25% by weight of the skin layer of a polar polymer.

25 . The plastic film of claim 2 , wherein said one of said skin layers includes a blend of more than 75% by weight of the skin layer of a high-density ethylene polymer and less than 25% by weight of the skin layer of a polar polymer.

26 . The plastic film of claim 2 , wherein said one of said skin layers includes a blend of at least 87.5% by weight of the skin layer of a high-density ethylene polymer and no more than 12.5% by weight of the skin layer of a polar polymer.

27 . The plastic film of claim 2 , wherein said one of said skin layers includes a blend of more than 90% by weight of the skin layer of a high-density ethylene polymer and less than 10% by weight of the skin layer of a polar polymer.

28 . The plastic film of claim 3 , wherein said one of said skin layers includes a blend of at least 75% by weight of the skin layer of a high-density ethylene polymer and no more than 25% by weight of the skin layer of a polar polymer.

29 . The plastic film of claim 3 , wherein said one of said skin layers includes a blend of more than 75% by weight of the skin layer of a high-density ethylene polymer and less than 25% by weight of the skin layer of a polar polymer.

30 . The plastic film of claim 3 , wherein said one of said skin layers includes a blend of at least 87.5% by weight of the skin layer of a high-density ethylene polymer and no more than 12.5% by weight of the skin layer of a polar polymer.

31 . The plastic film of claim 3 , wherein said one of said skin layers includes a blend of more than 90% by weight of the skin layer of a high-density ethylene polymer and less than 10% by weight of the skin layer of a polar polymer.

32 . The plastic film of claim 5 , wherein said one of said skin layers includes a blend of at least 75% by weight of the skin layer of a high-density ethylene polymer and no more than 25% by weight of the skin layer of a polar polymer.

33 . The plastic film of claim 5 , wherein said one of said skin layers includes a blend of more than 75% by weight of the skin layer of a high-density ethylene polymer and less than 25% by weight of the skin layer of a polar polymer.

34 . The plastic film of claim 5 , wherein said one of said skin layers includes a blend of at least 87.5% by weight of the skin layer of a high-density ethylene polymer and no more than 12.5% by weight of the skin layer of a polar polymer.

35 . The plastic film of claim 5 , wherein said one of said skin layers includes a blend of more than 90% by weight of the skin layer of a high-density ethylene polymer and less than 10% by weight of the skin layer of a polar polymer.

36 . The plastic film of claim 7 , wherein said one of said skin layers includes a blend of at least 75% by weight of the skin layer of a high-density ethylene polymer and no more than 25% by weight of the skin layer of a polar polymer.

37 . The plastic film of claim 7 , wherein said one of said skin layers includes a blend of more than 75% by weight of the skin layer of a high-density ethylene polymer and less than 25% by weight of the skin layer of a polar polymer.

38 . The plastic film of claim 7 , wherein said one of said skin layers includes a blend of at least 87.5% by weight of the skin layer of a high-density ethylene polymer and no more than 12.5% by weight of the skin layer of a polar polymer.

39 . The plastic film of claim 7 , wherein said one of said skin layers includes a blend of more than 90% by weight of the skin layer of a high-density ethylene polymer and less than 10% by weight of the skin layer of a polar polymer.

40 . The plastic film of claim 1 , including a metal layer on the skin layer opposed to said one skin layer.

41 . The plastic film of claim 2 , including a metal layer on the skin layer opposed to said one skin layer.

42 . The plastic film of claim 3 , including a metal layer on the skin layer opposed to said one skin layer.

43 . The plastic film of claim 5 , including a metal layer on the skin layer opposed to said one skin layer.

44 . The plastic film of claim 7 , including a metal layer on the skin layer opposed to said one skin layer.

45 . The plastic film of claim 9 , including a metal layer on the skin layer opposed to said one skin layer.