초록 ▼

There is described a sealed package (1, 15) for pourable food products, formed from a multilayer packaging material (2, 16) and having an opening (10, 26) closed, on the inside of the package (1, 15), by a sheet element (11, 27), and a removable opening tab (12, 28) joined to the sheet element (11,

There is described a sealed package (1, 15) for pourable food products, formed from a multilayer packaging material (2, 16) and having an opening (10, 26) closed, on the inside of the package (1, 15), by a sheet element (11, 27), and a removable opening tab (12, 28) joined to the sheet element (11, 27) and covering the opening (10, 26) on the outside of the package (1, 15); the opening (10, 26) extending close to the end portion (8,17) of the package (1,15) and along at least half the perimeter of the package (1, 15).

대표청구항 ▼

The invention claimed is: 1. A sealed package for pourable food products, formed from a multilayer packaging material; said package having an opening closed, on the inside of the package, by a sheet element; and a removable opening tab joined to said sheet element and covering said opening on the o

The invention claimed is: 1. A sealed package for pourable food products, formed from a multilayer packaging material; said package having an opening closed, on the inside of the package, by a sheet element; and a removable opening tab joined to said sheet element and covering said opening on the outside of said package; wherein said opening extends close to an end portion of said package and along at least half the perimeter of the package. 2. A package as claimed in claim 1, wherein said end portion is substantially wedge-shaped, and is defined by a transverse sealing band of the package; and in that said opening is elongated in a direction parallel to said transverse sealing band. 3. A package as claimed in claim 2, wherein being defined, on the opposite side to said wedge-shaped end portion, by a substantially rectangular, flat base wall, by two isosceles-trapezium-shaped first lateral walls projecting from respective opposite sides of said base wall and tapering towards the base wall, and by two triangular second lateral walls projecting from the other sides of said base wall and forming, with said first lateral walls, said wedge-shaped end portion; said opening extending along one of said first lateral walls. 4. A package as claimed in claim 1, wherein being in the form of a substantially parallelepiped-shaped box; said end portion being defined by an end wall of said package; and said opening extending along three consecutive lateral walls of the package. 5. A package as claimed in claim 4, wherein said opening extends, at each of said three consecutive lateral walls, parallel to the respective edge defined between the lateral wall and said end wall. 6. A package as claimed in claim 1, wherein said multilayer packaging material comprises at least one layer of thermoplastic material defining an inner surface of the package. 7. A package as claimed in claim 1, wherein said multilayer packaging material comprises at least one layer of polypropylene, in turn including a mineral inorganic filler. 8. A package as claimed in claim 6, wherein said sheet element is made of heat-seal material, is comparable in size with said opening, and is heat sealed to said layer of thermoplastic material of said multilayer packaging material about the opening. 9. A package as claimed in claim 8, wherein said tab is made of heat-seal material, and is heat sealed to said sheet element at said opening and along a sealing area defining a tear-off portion of and for tearing the sheet element as said tab is removed. 10. A package as claimed in claim 1, wherein comprising, about said opening, a further, multilayer, sheet element comprising at least a first and a second layer of plastic material sealed respectively to said tab and to the outside of the packaging material constituting the package; said first and said second layer of plastic material adhering to each other less firmly than to said tab and the packaging material of said package respectively. 11. A package as claimed in claim 10, wherein said first and said second layer of plastic material of said further sheet element are made of polypropylene and polyethylene respectively.