Dispenser package

Claim 2

A dispensing package for a flowable product comprising a flexible top member having at least one layer and secured to a rigid or semi-rigid base member at marginal edge portions to form a pocket, for containment of a flowable product, said base member comprising an outer layer having a cut score area and an imperforate, uniaxially oriented polymeric film attached to the outer surface of the second layer, the imperforate film being oriented to the extent that it exhibits a tear strength differential between the orientation direction and the direction perpendicular to the orientation direction, the oriented film being so positioned on said rigid or semi-rigid member that the orientation direction of the film extends substantially parallel to the cut score area, whereby said score area and said imperforate film rupture to open the package upon bending the base member in a direction toward the pocket.

Claim 3

A package, as defined in claim 1, in which said cut scored area is a single uninterrupted score line extending across said base member.

Claim 4

A package, as defined in claim 1, in which said cut scored area is an interrupted series of cuts forming a series of tongues extending across said base member.

Claim 5

A package, as defined in claim 1, in which said top and base members are multilayer laminates.

Claim 6

A package, as defined in claim 1, in which said imperforate oriented film is selected from the group consisting of high density polyethylene, polypropylene, low density polyethylene, and polyesters.

Claim 7

A package, as defined in claim 1, in which said flexible top member comprises materials selected from the group consisting of polyethylene, metal foil, polypropylene, polyethylene terephthalate, paper and combinations thereof.

Claim 8

A package, as defined in claim 1, in which said base member comprises materials selected from the group consisting of polystyrene, methyl methacrylate polyester of acrylonitrile butadiene-styrene terpolymer, copolymers of acylonitrile-methylacrylate and butadiene-acrylonitrile, and combinations thereof.

Claim 9

A package, as defined in claim 1, wherein said flexible top member has a crease line, positioned therein to correspond to the position of the score in said base member, said crease line functioning to facilitate bending of the flexible top during opening of the package.

Claim 10

A package, as defined in claim 1, wherein said base member is bent into a V about an axis toward the pocket so that said flexible top portion and said flowable product in said pocket are between the arms of said V as said arms are forced together thereby causing said flowable product to flow from said pocket through said package opening.

Claim 11

A dispensing package for a flowable product comprising: (1) a multilayer flexible top member comprising an outer layer of polyethylene terephthalate copolymer adhered to aluminum foil and an inner heat sealing layer of polyethylene; secured to (2) a multilayer rigid or semi-rigid base member secured to said flexible member at marginal edge portions to form a pocket for containment of a flowable product; said base member comprising an outer layer of a polymer of acrylonitrile-methylacrylate and butadiene-acrylonitrile, the outer layer having a single, straight, uninterrupted cut pattern extending across its surface, and (3) an imperforate, uniaxially oriented film of high density polyethylene attached to the outer layer of the base member; said polyethylene film being oriented to the extent that it exhibits a tear strength differential between the orientation direction and the direction perpendicular to the orientation direction, said oriented polyethylene film being so positioned on said base member that the orientation direction of the film extends substantially parallel to the cut pattern, whereby said scored area and said polyethylene film rupture to open the package upon bending the base member in a direction toward the pocket, said oriented film providing moisture barrier properties to said rigid base member.

Claim 12

A dispensing package for a flowable product comprising: (1) a multilayer flexible top member comprising an outer layer of polyethylene terephthalate copolymer adhered to aluminum foil and an inner heat sealing layer of polyethylene; secured to (2) a multilayer rigid or semi-rigid base member secured to said flexible member at marginal edge portions to form a pocket for containment of a flowable product; said base member comprising an outer layer of a polymer of acrylonitrile-methylacrylate and butadiene-acrylonitrile, the outer layer having a single, straight, uninterrupted cut pattern extending across its surface, and (3) an imperforate, uniaxially oriented film of high density polyethylene attached to the outer layer of the base member; said polyethylene film being oriented to the extent that it exhibits a tear strength differential between the orientation direction and the direction perpendicular to the orientation direction, said oriented polyethylene film being so positioned on said base member that the orientation direction of the film extends substantially parallel to the cut pattern, whereby said scored area and said polyethylene film rupture to open the package upon bending the base member in a direction toward the pocket, said oriented film providing moisture barrier properties to said rigid base member.

Claim 13

A package as defined in claim 10 wherein the marginal edge portions of said top member and said base member are heat sealed one to the other to form a pocket for the flowable product.

Claim 14

In a dispensing package for a flowable substance having a relatively rigid or semi-rigid flat side and a flexible arched side secured to one side of said flat side and forming between said flat side and said arched side a pocket for containing a flowable product and wherein the flat side has a cut score area forming an opening when the flat side is bent in a direction toward said pocket, the improvement which comprises an imperforate, uniaxially oriented polymeric film attached to the outer surface of the scored flat side, said film being oriented to the extent that it exhibits a tear strength differential between the orientation direction and the direction perpendicular to the orientation direction, said film being so positioned on said scored flat side that the orientation direction of the film extends substantially parallel to the cut score area; said film providing moisture barrier properties and improved strength to said package and rupturing to provide a package opening upon bending the base member in a direction toward the pocket.

Claim 15

In a dispensing package for a flowable substance having a relatively rigid or semi-rigid flat side and a flexible arched side secured to one side of said flat side and forming between said flat side and said arched side a pocket for containing a flowable product and wherein the flat side has a cut score area forming an opening when the flat side is bent in a direction toward said pocket, the improvement which comprises an imperforate, uniaxially oriented polymeric film attached to the outer surface of the scored flat side, said film being oriented to the extent that it exhibits a tear strength differential between the orientation direction and the direction perpendicular to the orientation direction, said film being so positioned on said scored flat side that the orientation direction of the film extends substantially parallel to the cut score area; said film providing moisture barrier properties and improved strength to said package and rupturing to provide a package opening upon bending the base member in a direction toward the pocket.

Claim 16

The improvement of claim 12 wherein said imperforate, oriented film is selected from the group consisting of high density polyethylene, polypropylene, polyesters and low density polyethylene.

Claim 17

The improvement of claim 12 wherein said uniaxially oriented imperforate film is high density polyethylene.