JPH0393434U - - Google Patents
Info
- Publication number
- JPH0393434U JPH0393434U JP77090U JP77090U JPH0393434U JP H0393434 U JPH0393434 U JP H0393434U JP 77090 U JP77090 U JP 77090U JP 77090 U JP77090 U JP 77090U JP H0393434 U JPH0393434 U JP H0393434U
- Authority
- JP
- Japan
- Prior art keywords
- metal
- polypropylene
- plastic lid
- gas barrier
- layer made
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004033 plastic Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 3
- 229920000578 graft copolymer Polymers 0.000 claims 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims 2
- 229920005673 polypropylene based resin Polymers 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Containers Opened By Tearing Frangible Portions (AREA)
Description
第１図は本考案のプラスチツク蓋の一実施例が
装着された容器を示す断面図、第２図はプラスチ
ツク蓋の要部を拡大して示す断面図、第３図は同
プラスチツク容器のガスバリア層を形成する複合
フイルムを示す断面図、第４図は従来の金属製容
器を示す断面図、第５図は従来のプラスチツク製
容器を示す断面図、第６図は同従来例のガスバリ
ア層を形成する複合フイルムを示す断面図である
。
３０……金属缶、３１……プラスチツク蓋、３
２……外層部、３３……ガスバリア層、３６……
弱化線、３７……中央部、３９……アルミニウム
箔、４１……共押出フイルム、４１ａ……ポリプ
ロピレンフイルム、４１ｂ……ポリプロピレン・
無水マレイン酸共重合体製フイルム。
Fig. 1 is a sectional view showing a container fitted with an embodiment of the plastic lid of the present invention, Fig. 2 is an enlarged sectional view showing the main parts of the plastic lid, and Fig. 3 is a gas barrier layer of the same plastic container. 4 is a sectional view showing a conventional metal container, FIG. 5 is a sectional view showing a conventional plastic container, and FIG. 6 is a sectional view showing a gas barrier layer of the same conventional example. FIG. 2 is a sectional view showing a composite film. 30...Metal can, 31...Plastic lid, 3
2... Outer layer portion, 33... Gas barrier layer, 36...
Weakening line, 37... Central portion, 39... Aluminum foil, 41... Coextruded film, 41a... Polypropylene film, 41b... Polypropylene.
Film made of maleic anhydride copolymer.
Claims (1)
のガスバリヤ層が設けられると共に、外層部に形
成された弱化線によつて被開封部が区画された、
金属製の缶容器の開口を閉止するために用いられ
る金属缶用プラスチツク蓋であつて、 前記缶容器の開口側端部と接する部分にポリプ
ロピレン・無水マレイン酸グラフト共重合体から
なる層を設けたことを特徴とする金属缶用プラス
チツク蓋。 (2) 前記ガスバリヤ層が、ポリプロピレン系樹
脂製フイルムの表裏両面にポリプロピレン・無水
マレイン酸グラフト共重合体製フイルムが積層さ
れてなるフイルムが金属箔に積層されてなるもの
であることを特徴とする請求項１記載の金属缶用
プラスチツク蓋。[Claims for Utility Model Registration] (1) A gas barrier layer made of metal foil is provided on the inner surface of the outer layer made of plastic, and the portion to be opened is divided by weakened lines formed on the outer layer.
A plastic lid for a metal can used to close the opening of a metal can, wherein a layer made of a polypropylene/maleic anhydride graft copolymer is provided in a portion that contacts the opening side end of the can. A plastic lid for a metal can. (2) The gas barrier layer is characterized in that a film made of a polypropylene-based resin film and a polypropylene/maleic anhydride graft copolymer film laminated on both sides thereof is laminated on a metal foil. A plastic lid for a metal can according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990000770U JPH084416Y2 (en) | 1990-01-09 | 1990-01-09 | Plastic lid for metal can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990000770U JPH084416Y2 (en) | 1990-01-09 | 1990-01-09 | Plastic lid for metal can |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0393434U true JPH0393434U (en) | 1991-09-24 |
| JPH084416Y2 JPH084416Y2 (en) | 1996-02-07 |
Family
ID=31504712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990000770U Expired - Lifetime JPH084416Y2 (en) | 1990-01-09 | 1990-01-09 | Plastic lid for metal can |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH084416Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125445A (en) * | 1982-01-12 | 1983-07-26 | 東洋製罐株式会社 | Manufacturing method for easy-to-open container lids |
-
1990
- 1990-01-09 JP JP1990000770U patent/JPH084416Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125445A (en) * | 1982-01-12 | 1983-07-26 | 東洋製罐株式会社 | Manufacturing method for easy-to-open container lids |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH084416Y2 (en) | 1996-02-07 |
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