PTP packaging sheets and PTP packaging bodies

Abstract

The objective is to provide PTP packaging sheets and PTP packaging bodies that exhibit high adhesive strength to sealing materials and high fracture strength, while also using resin materials that are environmentally friendly. [Solution] A PTP packaging sheet comprising at least one resin layer containing polypropylene and biomass-derived polyethylene, wherein the resin layer further contains a styrene-based elastomer, the total content of polypropylene and biomass-derived polyethylene in the resin layer is 70% by weight or more, and the styrene content of the styrene-based elastomer is 40% by weight or less.

Claims

1. The material comprises at least one resin layer containing polypropylene and biomass-derived polyethylene, The aforementioned resin layer further contains a styrene-based elastomer, The total content of polypropylene and biomass-derived polyethylene in the aforementioned resin layer is 70% by weight or more. A PTP packaging sheet wherein the styrene content of the styrene-based elastomer is 40% by weight or less.

2. The PTP packaging sheet according to claim 1, wherein the content ratio of polypropylene to biomass-derived polyethylene in the resin layer is 99:1 to 60:

40.

3. The PTP packaging sheet according to claim 1 or 2, wherein the content of styrene-based elastomer in the resin layer is 1% by weight or more and 30% by weight or less.

4. The PTP packaging sheet according to claim 1 or 2, wherein the styrene-based elastomer is a styrene-ethylene-butylene-styrene block copolymer.

5. The PTP sheet according to claim 1 or 2, wherein the biomass-derived polyethylene is biomass-derived low-density polyethylene (LDPE).

6. A PTP packaging body comprising a PTP packaging sheet according to claim 1 or 2 and a sealing material laminated together.

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