초록 ▼

Retortable packaging is made entirely with polymeric materials. The improved heat sealable structure has an inner heat seal layer of linear low density polyethylene. The second or adjacent layer is linear low density polyethylene with an optional 0% to 80% medium density polyethylene blended into it

Retortable packaging is made entirely with polymeric materials. The improved heat sealable structure has an inner heat seal layer of linear low density polyethylene. The second or adjacent layer is linear low density polyethylene with an optional 0% to 80% medium density polyethylene blended into it. A third layer is anhydride modified medium density polyethylene. Fourth, fifth and sixth layers respectively are nylon, ethylene vinyl alcohol and nylon. An optional layer between the second and third layers is at least 20% linear low density polyethylene and up to 80% medium density polyethylene. The entire multiple layer structure is firmly adhered together so that the layers mutually support each other in the unitary package.

대표청구항 ▼

A laminated multiple layer flexible packaging structure, wherein the layers are firmly adhered to each other in face to face contact, the structure comprising, in order: (a) a first layer of linear low density polyethylene; (b) a second layer of linear low density polyethylene; (c) a third layer of

A laminated multiple layer flexible packaging structure, wherein the layers are firmly adhered to each other in face to face contact, the structure comprising, in order: (a) a first layer of linear low density polyethylene; (b) a second layer of linear low density polyethylene; (c) a third layer of anhydride modified medium density polyethylene; and (d) fourth, fifth and sixth layers respectively of nylon, ethylene vinyl alcohol, and nylon. A pouch made from the packaging structure of claim 1, 2, 3, or 4.