JPH08192871A - Press-through pack - Google Patents

Abstract

PURPOSE: To obtain a press-through pack package superior in moistureproofness, transparency, and the like and free from generation of chlorine gas and the like at the time of incineration treatment. CONSTITUTION: In a press-through pack consisting of a synthetic resin bottom material with a recessed part for containing a content and a cover material for sealing the recessed part of the bottom material for containing a content a film or sheet of a cyclic polyolefin resin, a film or sheet of a blend of a cyclic polyolefin resin and a polyolefin resin, or a laminate of a film or sheet of a cyclic polyolefin resin and a film or sheet of a polyolefin resin is used as the bottom material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-through pack, and more particularly to a press-through pack which can be suitably used for a package of foods, medicines and the like.

[0002]

2. Description of the Related Art Conventionally, as a packaging body for pharmaceutical products such as tablets and capsules, generally, a synthetic resin bottom material having a recessed portion for storing the content and a content storing material in the bottom material are used. A press-through pack composed of a lid material that closes the recessed portion is used.

As the bottom material, a film or sheet of polyvinyl chloride resin is generally used. If the contents are easily altered by moisture, polyvinyl chloride laminated with polyvinylidene chloride resin is used. Films or sheets of resin are used. Further, recently, instead of a polyvinyl chloride resin film or sheet as a bottom material, a part of a polypropylene resin film or sheet having higher moisture-proof property has begun to be used.

Further, as the lid member, an aluminum foil which is easy to break by pressure is generally used.

In this press-through pack, the lid material is broken by pressing the synthetic resin bottom material in the package through the contents, and the contents such as tablets in the package are taken out and used. .

[0006]

By the way, a polyvinyl chloride resin film or sheet or a polyvinyl chloride resin film or sheet laminated with a polyvinylidene chloride resin is used as the bottom material. in case of,
When it is discarded after use, it is generally incinerated, but chlorine gas is generated at this time, which is said to be a cause of acid rain, and has been regarded as a problem from the viewpoint of environmental consideration in recent years.

When a polyvinyl chloride resin film or sheet laminated with a polyvinylidene chloride resin is used, first, a composition containing the polyvinylidene chloride resin is prepared, and then the composition is prepared. Is coated several times on a polyvinyl chloride resin film or sheet to produce a polyvinyl chloride resin film or sheet in which a polyvinylidene chloride resin is laminated. The manufacturing process is complicated and, if anything, the cost of the film or sheet is increased.

Furthermore, when an aluminum foil is used as the lid material, not only the transparency of the package is impaired, but also
Since the aluminum foil is a non-combustible material, there is a problem that unburned residue is generated during the incineration process, which is not environmentally friendly.

On the other hand, the present invention is to provide a press-through pack which is excellent in transparency, moisture resistance and the like, is easy to dispose of and is environmentally friendly.

[0010]

In order to achieve such an object, the present inventor, as a result of various studies, focused on a cyclic polyolefin resin, and the film or sheet thereof was used as a base for a press-through pack. The present invention has been completed by finding that a press-through pack having extremely excellent properties can be obtained by applying it as a material.

That is, the present invention relates to a press-through pack comprising a synthetic resin bottom material having a recess for storing contents and a lid member for closing the recess for storing contents in the bottom material. A film or sheet of a cyclic polyolefin resin as a bottom material, or a film or sheet comprising a blend composition of the cyclic polyolefin resin and a polyolefin resin, or a film or sheet of the cyclic polyolefin resin. The present invention relates to a press-through pack comprising a laminate of a sheet and a polyolefin resin film or sheet.

[0012]

In the present invention, a film or sheet of a cyclic polyolefin resin as a bottom material, or a film or sheet made of a blend composition of the cyclic polyolefin resin and the polyolefin resin, or a cyclic polyolefin resin. Since a laminate of a resin film or sheet and a polyolefin resin film or sheet is used, first of all, it is excellent in moldability when manufacturing a bottom material, and the molded product is transparent. It is possible to see through the contents, and further to eliminate generation of chlorine gas and the like during incineration after use.

[0013]

The present invention will be described in more detail below.

First, in the present invention, the film or sheet of the cyclic polyolefin resin is a ring-opening polymer derived from a cyclic olefin, a ring-opening copolymer thereof, hydrogen of the polymer or the copolymer. A film or sheet made of a resin such as an additive or an addition polymer made of a cyclic olefin and an ethylene component can be used.

In the above, as the cyclic olefin,
For example, bicyclo [2.2.1] hept-2-ene, 6
-Methylbicyclo [2.2.1] hept-2-ene,
5.6-Dimethylbicyclo [2.2.1] hept-2-
Ene, 1-methylbicyclo [2.2.1] hept-2-
Ene, 6-ethylbicyclo [2.2.1] hept-2-
Ene, 6-n-butylbicyclo [2.2.1] hept-
2-ene, 6-isobutyl bicyclo [2.2.1] hep
To-2-ene, 7-methylbicyclo [2.2.1] hep
Bicyclo [2.2.1] hept-2-, such as to-2-ene
Ene derivative: tetracyclo [4.4.0.1^2,5. 1
^7,10] -3-Dodecene, 5.10-dimethyltetracycline
B [4.4.0.1^2,5. 1^7,10] -3-dodecene,
2.10-Dimethyltetracyclo [4.4.0.
1^2,5. 1^7,10] -3-Dodecene, 11.12-Dimethy
Rutetracyclo [4.4.0.1^2,5. 1^7,10] -3-
Dodecene, 2.7.9-trimethyltetracyclo [4.
4.0.1^2,5. 1^7,10] -3-Dodecene, 9.11.
12-trimethyltetracyclo [4.4.0.1^2,5.
1^7,10] -3-Dodecene, 9-ethyl-2.7-dimethyl
Rutetracyclo [4.4.0.1^2,5. 1^7,10] -3-
Dodecene, 9-isoputyl-2.7-dimethyltetrasi
Black [4.4.0.1^2,5. 1^7,10] -3-dodecene,
9-ethyl-11.12-dimethyltetracyclo [4.
4.0.1^2,5. 1^7,10] -3-Dodecene, 9-isobu
Chill-11.12-dimethyltetracyclo [4.4.
0.1^2,5. 1^7,10] -3-Dodecene, 5.89.1
0-tetramethyltetracyclo [4.4.0.1^2,5.
1^7,10] -3-Dodecene, 8-methyltetracyclo
[4.4.0.1^2,5. 1^7,10] -3-Dodecene, 8-
Ethyl tetracyclo [4.4.0.1^2,5. 1^7,10]-
3-dodecene, 8-propyltetracyclo [4.4.
0.1^2,5. 1^7,10] -3-Dodecene, 8-hexylte
Tracyclo [4.4.0.1^2,5. 1^7,10] -3-Dode
Sene, 8-stearyltetracyclo [4.4.0.1
^2,5. 1^7,10] -3-Dodecene, 8.9-dimethyltet
Lacyclo [4.4.0.1^2,5. 1 ^7,10] -3-Dodese
8-methyl-9-ethyltetracyclo [4.4.
0.1^2,5. 1^7,10] -3-Dodecene, 8-chloroteto
Lacyclo [4.4.0.1^2,5. 1^7,10] -3-Dodese
8-bromotetracyclo [4.4.0.1^2,5. 1
^7,10] -3-Dodecene, 8-fluorotetracyclo
[4.4.0.1^2,5. 1^7,10] -3-Dodecene, 8.
9-dichlorotetracyclo [4.4.0.1^2,5. 1
^7,10] -3-Dodecene, 8-cyclohexyl tetracycline
B [4.4.0.1^2,5. 1^7,10] -3-Dodecene, 8
-Isobutyltetracyclo [4.4.0.1^2,5. 1
^7,10] -3-Dodecene, 8-ethylidene tetracyclo
[4.4.0.1^2,5. 1^7,10] -3-Dodecene, 8-
Ethylidene-9-methyltetracyclo [4.4.0.1
^2,5. 1^7,10] -3-Dodecene, 8-ethylidene-9-
Ethyl tetracyclo [4.4.0.1^2,5. 1^7,10]-
3-dodecene, 8-ethylidene-9-isopropyl tet
Lacyclo [4.4.0.1^2,5. 1^7,10] -3-Dodese
8-ethylidene-9-butyltetracyclo [4.
4.0.1^2,5. 1^7,10] -3-Dodecene, 8-n-p
Lopylidene tetracyclo [4.4.0.1^2,5.
1^7,10] -3-Dodecene, 8-n-propylidene-9-
Methyl tetracyclo [4.4.0.1^2,5. 1^7,10]-
3-dodecene, 8-n-propylidene-9-ethylteto
Lacyclo [4.4.0.1^2,5. 1^7,10] -3-Dodese
8-n-propylidene-9-isopropyltetracyne
Black [4.4.0.1^2,5. 1^7,10] -3-dodecene,
8-n-propylidene-9-butyltetracyclo [4.
4.0.1^2,5. 1^7,10] -3-Dodecene, 8-isop
Ropylidene-9-methyltetracyclo [4.4.0.1
^2,51^7,10] -3-Dodecene, 8-isopropylidene-
9-Ethyltetracyclo [4.4.0.1^2,5.
1^7,10] -3-Dodecene, 8-isopropylidene-9-
Isopropyltetracyclo [4.4.0.1^2,5. 1
^7,10] -3-Dodecene, 8-isopropylidene-9-bu
Cyltetracyclo [4.4.0.1^2,5. 1^7,10] -3
-Tetracyclo [4.4.0.1 such as dodecene^2,5. 1
^7,10] -3-Dodecene derivative: hexacyclo [6.6.
1.1^3,6. 1^10,13. 0^2,7. 0^9,14] -4-Hepta
Decene, 12-methylhexacyclo [6.6.1.1
^3,6. 1^10,13. 0^2,7. 0^9,14] -4-Heptadese
12-ethylhexacyclo [6.6.1.1^3,6.
1^10,13. 0^2,7. 0^9,14] -4-heptadecene, 12
-Isopropylhexacyclo [6.6.1.1^3,6. 1
^10,13. 0^2,7. 0^9,14] -4-Heptadecene, 1.
6.10. -Trimethyl-12-isopropyl hexacy
Black [6.6.1.1^3,6. 1^10,13. 0^2,7.
0^9,14] -4-Heptadecene and other hexacyclo [6.
6.1.1^3,6. 1^10,13. 0^2,7. 0^9,14] -4-
Ptadecene derivative: octacyclo [8.8.0.
1^2,9. 1^4,7. 1^11,18. 1^13,16. 0^3,8. 0
^12,17] -5-dococene, 15-methyloctacyclo
[8.8.0.1^2,9. 1^4,7. 1^11,18. 1^13,16.
0^3,8. 0^12,17] -5-dococene, 15-ethyloc
Tacyclo [8.8.0.1^2,9. 1^4,7. 1^11,18. 1
^13,16. 0^3,8. 0^12,17] -5-octa such as docosene
Cyclo [8.8.0.1^2,9. 1^4,7. 1^11,18. 1
^13,16. 0^3,8. 0^12,17] -5-dococene derivative:
Ntacyclo [6.6.1.1^3,6. 0^2,7. 0^9,14]-
4-hexadecene, 1.3-dimethylpentacyclo
[6.6.1.1^3,6. 0^2,7. 0^9,14] -4-Hexa
Decene, 1.6-dimethylpentacyclo [6.6.1.
1^3,6. 0^2,7. 0^9,14] -4-Hexadecene, 15.
16-Dimethylpentacyclo [6.6.1.1^3,6. 0
^2,7. 0^9,14] -4-pentacyclo such as hexadecene
[6.6.1.1^3,6. 0^2,7. 0^9,14] -4-Hexa
Decene derivative: heptacyclo [8.7.0.1^2,9. 1
^4,7. 1^11,17. 0^3,8. 0^12,16] -5-icosene,
Heptacyclo [8.7.0.1^2,9. 1^4,7.
1^11,18. 0^3,8. 0^12,17] -5-hen Eikosen etc.
Heptacyclo-5-icosene derivative or heptasi
Chloro-5-heneicosene derivative: tricyclo [4.
3.0.1^2,5] -3-decene, 2-methyltricyclo
[4.3.0.1^2,5] -3-decene, 5-methyltri
Cyclo [4.3.0.1^2,5] -3-Tridecene etc.
Black [4.3.0.1^2,5] -3-decene derivative: tri
Cyclo [4.4.0.1^2,5] -3-Undecene, 10
-Methyltricyclo [4.4.0.1^2,5] -3-un
Tricyclo [4.4.0.1 such as decene^2,5] -3-C
Ndecene derivative: pentacyclo [6.5.1.1^3,6.
0^2,7. 0^9,13] -4-Pentadecene, 1.3-Dimethy
Lupentacyclo [6.5.1.1^3,6. 0^2,7.
0^9,13] -4-Pentadecene, 1.6-Dimethylpenta
Cyclo [6.5.1.1^3,6. 0^2,7. 0^9,13] -4-
Pentadecene, 14.15-dimethylpentacyclo
[6.5.1.1^3,6. 0^2,7. 0^9,13] -4-Penta
Pentacyclo [6.5.1.1 such as decene^3,6.
0^2,7. 0^9,13] -4-Pentadecene derivative: Pentasi
Black [6.5.1.1^3,6. 0^2,7. 0^9,13] -4.1
Gen compounds such as 0-pentadecagen: pentacyclo
[4.7.0.1^2,5. 0^8,13. 1^9,12] -3-Penta
Decene, methyl-substituted pentacyclo [4.7.0.
1^2,5. 0^8,13. 1^9,12] -3-Pentadecene and other pens
Tacyclo [4.7.0.1^2,5. 0^8,13. 1^9,12] -3
-Pentadecene derivative: heptacyclo [7.8.0.1
^3,5. 0^2,7. 1^10,17. 0^11,16. 1^12,15] -4-
Eicosane, dimethyl-substituted heptacyclo [7.8.0.
1^3,5. 0^2,7. 1^10,17. 0^11,16. 1^12,15] -4
-Heptacyclo [7.8.0.1] such as eicosane^3,5.
0^2,7. 1^10,17. 0^11,16. 1^12,15] -4-Eiko
Sun derivative: nanocyclo [9.1.10.1.1]^4,7. 0
^3,8. 0^2,10. 0^12,21. 1^13,20. 0^14,19. 1
^15,18] -5-Pentacocene, Trimethyl Substituted Nanosic
[9.10.1.1^4,7. 0^3,8. 0^2,10.
0^12,21. 1^13,20. 0^14,19. 1^15,18] -5-pen
Nanocyclo such as tacocene, etc. Nanocyclo [9.10.1.
1^4,7. 0^3,8. 0^2,10. 0^12,21. 1^13,20. 0
^14,19. 1^15,18] -5-Pentacocene Derivatives: Other
5-phenyl-bicyclo [2.2.1] hept-2-e
5-methyl-5-phenyl-bicyclo [2.2.
1] hept-2-ene, 5-benzyl-bicyclo [2.
2.1] Hept-2-ene, 5-tolyl-bicyclo
[2.2.1] hept-2-ene, 5- [ethylpheny
Ru] -bicyclo [2.2.1] hept-2-ene, 5-
[Isopropylphenyl] -bicyclo [2.2.1] f
Put-2-ene, 1.4-methano-1.1a. 4.4a
-Tetrahydrofluorene, 1.4-methano-1.4.
4a. 5.10.10a-hexahydroanthracene,
Cyclopentadiene-acenaphthylene adduct, 5- [α
-Naphthyl] -bicyclo [2.2.1] hept-2-e
5- [acetoracenyl] -bicyclo [2.2.1]
Hept-2-ene etc. can be mentioned.

These cyclic olefins can be used alone or in combination.

In the present invention, the above-mentioned cyclic olefins are used alone or in combination to carry out ring-opening polymerization by a known method to produce a ring-opening polymer or a ring-opening copolymer, whereby the cyclic olefin of the present invention is produced. A polyolefin resin can be manufactured.

Further, since a double bond remains in the above ring-opening polymer of cyclic olefin, hydrogenation of the double bond is carried out by a known method to form a cyclic polyolefin resin comprising a hydrogenated product. Can be obtained.

Further, in the present invention, the cyclic polyolefin resin can be obtained by addition-polymerizing the above-mentioned cyclic olefin and ethylene component.

In the above, as the ethylene component, for example, in addition to ethylene, propylene, 1-butene, 4-methyl-1-pentene, 1-hexene, 1-octene, 1
Examples thereof include α-olefins having 2 to 20 carbon atoms such as -decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene and 1-eicosane.

Next, in the present invention, a method for producing a film or sheet from the cyclic polyolefin resin obtained above will be explained. The cyclic polyolefin resin or the composition thereof produced above is subjected to known T-die molding. A film or sheet having a thickness of about 0.1 mm to 1 mm can be manufactured by a method or the like.

In the present invention, the thickness is more preferably about 0.15 mm to 0.35 mm. Further, at this time, it is preferable that the screw arrangement is of a slow compression type because the generation of gel and the like can be suppressed.

The unstretched film or sheet produced above can be used as a base material in the present invention by adopting, for example, a plug assist vacuum forming method.

Further, in the present invention, the film or sheet obtained above may be biaxially stretched, for example, at a temperature higher than the glass transition temperature successively or simultaneously at a ratio of 1.1 to 2.0. For example, the film or sheet of the cyclic polyolefin resin used in the present invention may be biaxially stretched by a roll stretching method, a tenter stretching method or the like.

Next, in the present invention, as a film or sheet comprising a blend composition of a cyclic polyolefin resin and a polyolefin resin, first, various polyolefin resins are added to the cyclic polyolefin resin obtained above. The film or sheet of the present invention can be obtained by blending and then film-forming or sheeting the composition in the same manner as described above.

In the above, examples of the polyolefin resin include, for example, various types of polyethylene such as low density, medium density, high density, and straight chain, ionomer, polypropylene, polymethylbutene-1, poly-4-methylpentene-. 1,
Polybutene-1, a copolymer of ethylene and α-olefin and the like can be used.

The amount of the above polyolefin resin to be used can be selected in consideration of its moldability, transparency, etc.
Considering moldability and transparency, it is 1 to 40 wt%, preferably 5 to 30% based on the cyclic polyolefin resin.
wt%.

Next, in the present invention, a laminate of a film or sheet of a cyclic polyolefin resin and a film or sheet of a polyolefin resin is, for example, the above cyclic polyolefin resin and the above polyolefin. By co-extrusion molding with a resin, a laminate composed of both can be obtained.

Alternatively, the cyclic polyolefin-based resin film or sheet and the polyolefin-based resin film or sheet can also be produced by a method of laminating both using an ordinary adhesive or the like. .

In the present invention, the film or sheet obtained above may be used by itself or a heat seal layer,
A gas barrier layer, a protective layer, an antistatic layer, etc. may be laminated as desired, and then concave portions may be formed by vacuum forming, pressure forming, or other forming method to be used as a bottom material for a press-through pack. .

On the other hand, in the present invention, the aluminum foil which has been used so far can be used as the cover material of the press-through pack.

However, in this case, when incinerated after use, aluminum remains as a non-combustible material, which is not preferable for environmental protection. Therefore, in the present invention, a synthetic resin film or a synthetic resin film is used as a cover material for a press-through pack. See
Can be used.

Specifically, it is possible to use a lid member having a slit or a large number of scratches formed by laser processing on a part of the synthetic resin film or sheet. In the above, it is preferable that the slits or scratches do not penetrate the film or the sheet, and if necessary, a protective layer or the like may be formed thereon.

In the above, the slit forming method by laser processing will be described. For example, the strength of the laser beam is adjusted to burn off the surface of the film or sheet, or the type of material. By utilizing the difference in the absorbency of different lasers, the surface of the film or sheet can be burned out. Further, in the above, as a method of forming a scratch or the like, for example, a cylindrical rotating grindstone, a wire-brush, a sheet material containing a grindstone,
This can be carried out by a method of pressing or rubbing the surface of the film or sheet with an abrasive such as an abrasive grain adhesive sheet. The slit or the scratch may have any shape such as a linear shape or a cross shape, and its position may correspond to the concave portion of the bottom material.

In the present invention, the lid material may be optionally laminated with a gas barrier layer, an antistatic layer and the like as in the above-mentioned bottom material, and is used for adhesion to the bottom material. A heat seal layer or the like can be laminated on the above.

In the above, as the heat seal layer,
Known materials, for example, polyolefin resin layers such as polyethylene resins and polypropylene resins, polyester resin layers, polyurethane resin layers, and modified resin layers thereof can be used.

The gas barrier layer may be a known one, for example, a resin layer made of an ethylene-vinyl alcohol copolymer resin, or a vapor deposited film of an inorganic material such as silica.

As the protective layer, a known material such as a coating film of a composition containing a thermoplastic or thermosetting resin such as acrylic, polyester or polyamide can be applied.

Further, as the antistatic layer, known ones,
For example, a coating film of a composition containing one or more kinds of various surfactants such as amphoteric, negative or positive can be applied.

In the present invention, a stretched synthetic resin film or sheet may be used as the lid material.

For example, polyethylene, polypropylene,
Polyolefin resin film or sheet such as polystyrene, polyester resin film or sheet such as polyethylene terephthalate, polyamide resin film or sheet, polycarbonate resin film or sheet A uniaxially or biaxially stretched film or sheet such as a sheet can be used.

[0042]

EXAMPLES Next, the present invention will be described in more detail with reference to examples of the press-through pack of the present invention.

Example 1 As a cyclic polyolefin resin, ethylene and 8-ethyltetracyclo [4.4.0.1 ^2,5 . 1 ^7,10 ] -3-
A copolymer with dodecene was used and was extruded by a T-die method at a temperature of 250 ° C. to obtain a sheet for bottom material having a thickness of about 200 μm. This sheet was indirectly heated with a heater at 300 ° C. and vacuum-formed into a shape suitable for tablets (diameter 10 mm) to form recesses, and then the tablets were filled in the recesses, and then aluminum foil (thickness 20 μm) coated with a modified polyolefin heat sealant at 8 g / m ^{2 and} heat-sealed at a sheet-sealing temperature of 160 ° C.
A pack package was obtained. This package is 40 ℃, RH 90%
When stored for 30 days underneath, the tablets did not absorb moisture. Further, even when the sheet for bottom material was incinerated, generation of chlorine gas was not recognized.

Example 2 The same cyclic polyolefin resin as that described in Example 1 was used, and this and a polypropylene resin (KT-012P, manufactured by Showa Denko KK) were cyclic polyolefin: polypropylene resin = 85 wt%: 15 wt
%, And extruded with a T-die at an extrusion temperature of 270 ° C. to obtain a bottom sheet having a thickness of 200 μm. A recess was formed in this sheet in the same manner as in Example 1, and after filling the recess with a tablet, an aluminum foil (thickness: 20 μm) laminated with a modified polyolefin heat seal agent at 8 g / m ²
Was heat-sealed at a heat-sealing temperature of 160 ° C. to obtain a press-sle pack package. This package is 40 ℃,
When stored for 30 days under 90% RH, the tablets did not absorb moisture. Further, even when the sheet for bottom material was incinerated, generation of chlorine gas was not recognized.

Example 3 The same cyclic polyolefin resin as described in Example 1 was used, and this was mixed with a high-density polyethylene resin at a weight ratio of 85:15, and the extrusion temperature was 28.
It was extruded with a T die at 0 ° C. to obtain a sheet for bottom material having a thickness of 200 μm. This sheet was processed in the same manner as in Example 1 to obtain a press-sle pack package. This package is 40 ℃,
When stored for 30 days under 90% RH, the tablets did not absorb moisture. Further, even when the sheet for bottom material was incinerated, generation of chlorine gas was not recognized.

Example 4 The same cyclic polyolefin resin as described in Example 1 was used, and a polypropylene resin (KT-012P, manufactured by Showa Denko KK) was used. Three layers are co-extruded with a T-die so that polypropylene resin layers are laminated on both sides of the resin layer, and a polypropylene resin layer of 50 μm, a cyclic polyolefin resin layer of 100 μm, and a polypropylene resin layer 5 are formed.
A laminated body having a thickness of 0 μm was obtained and used as a sheet for the bottom material. Using this sheet, a press-sle pack package was obtained in the same manner as in Example 1. This package is 40 ℃,
When stored for 30 days under 90% RH, the tablets did not absorb moisture. Further, even when the sheet for bottom material was incinerated, generation of chlorine gas was not recognized.

Example 5 As the cyclic polyolefin-based resin, the same one as described in Example 1 was used, and this and a high-density polyethylene resin were used. Three layers are co-extruded with a T-die so that the polyethylene resin layers are laminated, and the high-density polyethylene resin layer 50 μm, the cyclic polyolefin resin layer 100 μ
m, and a high-density polyethylene resin layer of 50 μm was obtained, which was used as a bottom sheet. Using this sheet, a press-sle pack package was obtained in the same manner as in Example 1. This package is 30 at 40 ℃ and 90% RH.
When stored for a day, the tablets did not absorb moisture. Further, even when the sheet for bottom material was incinerated, generation of chlorine gas was not recognized.

Example 6 The same cyclic polyolefin resin as that described in Example 1 was used, and this was extruded into an amorphous polyethylene terephthalate sheet (thickness: 100 μm). To 100 μm of cyclic polyolefin resin layer and 100 μm of amorphous polyethylene terephthalate sheet layer.
A laminated body made of m was obtained, and this was used as a bottom sheet.
Using this sheet, a press-sle pack package was obtained in the same manner as in Example 1. This package is 40 ℃, RH
When stored under 90% for 30 days, the tablets did not absorb moisture. Further, even when the sheet for bottom material was incinerated, generation of chlorine gas was not recognized.

Example 7 As the cyclic polyolefin resin, the same resin as described in Example 1 was applied to an amorphous polyethylene terephthalate sheet (thickness: 50 μm) and a modified polyester anchor coat. The laminate was extruded with a coating agent to obtain a laminate comprising a cyclic polyolefin resin layer of 100 μm and an amorphous polyethylene terephthalate sheet layer of 50 μm. Further, the same amorphous polyethylene terephthalate sheet as the above is dry laminated on the surface of the cyclic polyolefin resin layer of this laminate using a modified polyester dry laminate agent to form a laminate of three layers. It was manufactured and used as a sheet for bottom material. Using this sheet, a concave portion was formed by vacuum forming into a shape suitable for a tablet (diameter: 10 mm) in the same manner as in Example 1, and then the tablet was filled in the concave portion, and then the modified polyester sheet sheet was used. An aluminum foil (thickness 20 μm) laminated with a sealing agent was heat-sealed at a heat-sealing temperature of 170 ° C. to obtain a press-sle pack package.
When this package was stored at 40 ° C. and RH 90% for 30 days, the tablets did not absorb moisture. Further, even when the sheet for bottom material was incinerated, generation of chlorine gas was not recognized.

Example 8 The same cyclic polyolefin resin as that described in Example 1 was used, and this was converted into a transparent grade polypropylene resin sheet (thickness: 50 μm) and a modified urethane anchor. -Extrusion coating was carried out using a coating agent to obtain a laminate comprising a cyclic polyolefin resin layer 100 μm and a polypropylene resin sheet layer 50 μm. Further, the same polypropylene-based resin sheet as described above is dry-laminated on the surface of the cyclic polyolefin-based resin layer of this laminate using a modified urethane dry-laminate agent to produce a laminate of three layers, which is then bottomed. The sheet was used as a material. Using this sheet, a press-sle pack package was obtained in the same manner as in Example 1. When this package was stored at 40 ° C. and RH 90% for 30 days, the tablets did not absorb moisture. Further, even when the sheet for bottom material was incinerated, generation of chlorine gas was not recognized.

Example 9 As a cyclic polyolefin resin, ethylene and tetrasyl were used.
Black [4.4.0.1 ^2,5. 1^7,10] -3-With dodecene
Using a copolymer of
The blended composition was prepared by blending at a weight ratio of 85:15.
Manufactured, and the composition was extruded by a T-die method at an extrusion temperature of 270
The sheet was molded at 0 ° C. to obtain a bottom sheet having a thickness of about 200 μm.
Using this sheet, press in the same manner as in Example 1.
A through-pack package was obtained. This package is 40 ℃, RH
When stored under 90% for 30 days, the tablets absorb moisture
did not exist. Even if the bottom sheet is incinerated, chlorine gas
No outbreak was observed.

Example 10 The bottom material of Example 1 was used, and instead of the aluminum foil laminated with a heat seal agent as a lid material, a modified olefin type heat seal agent on the polyethylene side was 8 g / m 2. ^{2 A} film made of laminated polyethylene terephthalate, 12μ / anchor coating agent / polyethylene, 13μ, and a cross shape (5mm x 5mm) on the surface of the polyethylene terephthalate layer with an infrared laser. Put a half cut, and further har
Align the recessed part of the bottom with the cut part and heat seal,
A press through-pack package was obtained. 40 this package
When stored for 30 days at 90 ° C. and RH of 90%, the tablets were slightly hygroscopic. In addition, even after the contents were taken out and the packaging material for press-through packs was incinerated, generation of chlorine gas or the like was not observed.

Example 11 The bottom material of Example 9 was used, and instead of an aluminum foil laminated with a heat seal agent as a lid material, a modified olefin type heat seal agent on the polyethylene side was 8 g / m 2. ^{2 A} film made of laminated polyethylene terephthalate, 12μ / anchor coating agent / polyethylene, 13μ, and a cross shape (5mm x 5mm) on the surface of the polyethylene terephthalate layer with an infrared laser. Put a half cut, and further har
Align the recessed part of the bottom with the cut part and heat seal,
A press through-pack package was obtained. 40 this package
When stored for 30 days at 90 ° C. and RH of 90%, the tablets were slightly hygroscopic. In addition, even after the contents were taken out and the packaging material for press-through packs was incinerated, generation of chlorine gas or the like was not observed.

Comparative Example 1 A polyvinyl chloride resin sheet (thickness: 200 μm) was used as the sheet for the bottom material, and the same procedure as in Example 1 was performed to obtain a press-sle pack package. This packaging 4
When stored at 0 ° C. and 90% RH for 30 days, the tablets were hygroscopic. Further, when the sheet for bottom material was incinerated, generation of chlorine gas and the like was recognized.

Comparative Example 2 As a sheet for a bottom material, a polyvinylidene chloride resin (thickness: 5 μm) laminated by coating a composition containing a polyvinylidene chloride resin to form a polyvinyl chloride resin sheet.
(Thickness 205 μm) was manufactured. Using this, the same procedure as in Example 1 was performed to obtain a press-sle pack package. When this package was stored at 40 ° C. and RH 90% for 30 days, the tablets did not absorb moisture. Also,
When the sheet for bottom material was incinerated, generation of chlorine gas and the like was recognized.

Experiment 1 For each of the press-through pack packages of Examples 1 to 10 and Comparative Examples 1 and 2, the moisture permeability of the sheet for the bottom material, the transparency of the package, and the generation of chlorine gas. The presence or absence of the

The results are summarized in Tables 1 and 2.

[0058]

[Table 1]

[Table 2]

As is clear from Table 1, all the products according to the present examples are excellent in moisture permeability, transparency, etc., and generation of chlorine gas etc. was not recognized.

[0060]

From the above results, the effect of the present invention is clear. That is, in the present invention, high moisture resistance is realized, and deterioration of the contents over time is prevented. Also,
The present invention can provide a press-through pack package having excellent transparency. Further, it is possible to provide a press-through pack package capable of preventing generation of chlorine gas and the like. that's all

Claims (1)

[Claims] 1. A press-through pack comprising a synthetic resin bottom member having a recess for storing contents and a lid member closing the recess for storing contents in the bottom member, as a bottom member. Cyclic polyolefin resin film or sheet, film or sheet comprising a blend composition of the cyclic polyolefin resin and polyolefin resin, or cyclic polyolefin resin film or sheet and polyolefin resin A press-through pack comprising a laminate with the film or sheet described in 1.