초록 ▼

The present invention provides a hollow foamed polyolefin-based resin container comprising an inner layer and an outer layer, at least one of the inner and outer layers being formed of a foamed polyolefin-based resin sheet, wherein at least a side wall part of the container has a hollow portion betw

The present invention provides a hollow foamed polyolefin-based resin container comprising an inner layer and an outer layer, at least one of the inner and outer layers being formed of a foamed polyolefin-based resin sheet, wherein at least a side wall part of the container has a hollow portion between the inner and outer layer and a process for produciong the same, and the like. The hollow foamed polyolefin-based resin container can be used as containers for retorted food products and other containers.

대표청구항 ▼

1. A hollow foamed polyolefin-based resin container comprising an inner layer and an outer layer, at least one of the inner and outer layers being formed of a foamed multi-layered polyolefin-based resin sheet, comprising a foamed layer with a non-foamed polyolefin-based resin layer having a thicknes

1. A hollow foamed polyolefin-based resin container comprising an inner layer and an outer layer, at least one of the inner and outer layers being formed of a foamed multi-layered polyolefin-based resin sheet, comprising a foamed layer with a non-foamed polyolefin-based resin layer having a thickness of from 5 to 100 μm on each side of the foamed layer wherein at least a side wall part of the container has a hollow portion between the inner and outer layers, wherein the hollow portion extends throughout the entire side wall part. 2. The hollow foamed polyolefin-based resin container according to claim 1 wherein the foamed polyolefin-based resin sheet is a sheet in which at least two layers are laminated wherein each of the layers is composed of a three-layer structure of non-foamed polyolefin-based resin layer/foamed polyolefin-based resin layer/non-foamed polyolefin-based resin layer. 3. The hollow foamed polyolefin-based resin container according to any one of claim 1 or 2 wherein the foamed polyolefin-based resin sheet further comprises at least one gas barrier layer. 4. The hollow foamed polyolefin-based resin container according to claim 1 or 2 wherein the non-foamed layer in the foamed polyolefin-based resin sheet is formed of a polyolefin-based resin having a long-chain branch. 5. The hollow foamed polyolefin-based resin container according to any claim 4, wherein the foamed polyolefin-based resin sheet further comprises at least one gas barrier layer. 6. The hollow foamed polyolefin-based resin container according to claim 4 wherein the polyolefin-based resin has a branching index [A] satisfying