JP2001080658A - Synthetic resin cap - Google Patents
Synthetic resin capInfo
- Publication number
- JP2001080658A JP2001080658A JP26124399A JP26124399A JP2001080658A JP 2001080658 A JP2001080658 A JP 2001080658A JP 26124399 A JP26124399 A JP 26124399A JP 26124399 A JP26124399 A JP 26124399A JP 2001080658 A JP2001080658 A JP 2001080658A
- Authority
- JP
- Japan
- Prior art keywords
- cap
- synthetic resin
- container
- inner seal
- top plate
- 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.)
- Pending
Links
Landscapes
- Closures For Containers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、口部外周に雄ネジ
が形成された容器に螺子嵌合して該容器口部を閉止する
合成樹脂製キャップに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin cap for closing a container mouth by screwing into a container having an external thread formed on the outer periphery of the mouth.
【０００２】[0002]
【従来の技術】従来、合成樹脂製キャップとしては、例
えば図１に示す構造のものが知られている。ここに例示
される合成樹脂製キャップ２１は、通常ワンピースキャ
ップと呼ばれるタイプのもので、円板状の天板部２２
と、その周縁から垂下する筒部２３とを備え、筒部２３
は水平スコア２６によって水平スコア２６より上部の主
部２８と多数の細いブリッジ２７によって該主部２８の
下端に連結されたＴＥリング部２９とに区画されてい
る。主部２８の内壁面には容器口部の雄ネジに螺合する
ネジ部３０が形成されている。ＴＥリング部２９の内壁
面には、キャップ２１を開栓する際に容器に設けられた
係合突起に係止してＴＥリング部２９の移動を阻止する
複数の薄板状のウィング３１と、これらウイング３１に
隣接して設けられたビード３２が設けられている。2. Description of the Related Art Conventionally, as a cap made of synthetic resin, for example, a cap having a structure shown in FIG. 1 is known. The synthetic resin cap 21 exemplified here is of a type generally called a one-piece cap, and has a disc-shaped top plate portion 22.
And a tubular portion 23 hanging down from the periphery thereof.
Is divided by a horizontal score 26 into a main portion 28 above the horizontal score 26 and a TE ring portion 29 connected to the lower end of the main portion 28 by a number of narrow bridges 27. On an inner wall surface of the main portion 28, a screw portion 30 to be screwed with a male screw of the container mouth portion is formed. On the inner wall surface of the TE ring portion 29, there are provided a plurality of thin wings 31 which are engaged with engaging projections provided on the container to prevent the movement of the TE ring portion 29 when the cap 21 is opened. A bead 32 provided adjacent to the wing 31 is provided.
【０００３】天板部２２の内面側には、キャップ２１を
容器口部に装着した際に容器口部内に嵌入される環状の
内側シール部３５が下方に向けて突出形成されている。
内側シール部３５下部の外周には、径方向外方に突出し
た環状凸部３６が形成されている。内側シール部３５
は、容器口部内に嵌入した際に、環状凸部３６が容器口
部の内壁面に当接するようになっている。上記キャップ
２１の構成材料としては、通常、ポリエチレン、ポリプ
ロピレンなどが用いられる。[0003] On the inner surface side of the top plate 22, an annular inner seal portion 35 that is fitted into the container mouth when the cap 21 is attached to the container mouth is formed to protrude downward.
On the outer periphery of the lower portion of the inner seal portion 35, an annular convex portion 36 protruding radially outward is formed. Inner seal part 35
Is designed such that when fitted into the container mouth, the annular convex portion 36 comes into contact with the inner wall surface of the container mouth. As a constituent material of the cap 21, polyethylene, polypropylene or the like is usually used.
【０００４】このキャップ２１は、容器口部に被せて閉
栓方向に回し、ネジ部３０を容器口部の雄ネジに螺着す
ることによって容器口部に装着される。この際、内側シ
ール部３５は容器口部内部に嵌入し、環状凸部３６が内
側シール部３５の弾性力によって容器口部の内壁に隙間
なく当接し、これによって容器口部は密封される。[0004] The cap 21 is attached to the container opening by turning the cap 21 over the container opening in the closing direction and screwing the screw portion 30 into a male screw of the container opening. At this time, the inner seal portion 35 is fitted into the inside of the container mouth, and the annular convex portion 36 abuts on the inner wall of the container mouth without any gap by the elastic force of the inner seal portion 35, whereby the container mouth is sealed.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記キ
ャップ２１において、その構成材料としてポリエチレン
を用いた場合には、キャップ２１の耐熱性が低くなる。
このため、高温の内容液を充填することなどによりキャ
ップ２１が高温となると、変形が起こりやすくなり、落
下などによる衝撃に起因する変形により内側シール部３
５の容器口部内壁に対するシール性が不十分となり、密
封性が低くなることがあった。またポリプロピレンを用
いた場合には、耐熱性は高くなるものの、弾性が比較的
低くなる。このため、容器口部の寸法精度が低く口部内
径にばらつきがある場合には、内側シール部３５の容器
口部内壁に対するシール性が不十分となり、密封性が低
くなることがあった。本発明は上記事情に鑑みてなされ
たもので、容器口部の密封性を向上させることができる
合成樹脂製キャップを提供することを目的とする。However, when polyethylene is used as the constituent material of the cap 21, the heat resistance of the cap 21 is reduced.
For this reason, when the cap 21 is heated to a high temperature, for example, by filling with a high-temperature content liquid, the cap 21 is likely to be deformed, and the inner seal portion 3 is deformed due to an impact due to a drop or the like.
In some cases, the sealing performance on the inner wall of the container mouth of No. 5 was insufficient, and the sealing performance was sometimes reduced. When polypropylene is used, the heat resistance is high, but the elasticity is relatively low. For this reason, when the dimensional accuracy of the container mouth is low and the inner diameter of the mouth varies, the sealing property of the inner seal portion 35 to the inner wall of the container mouth may be insufficient, and the sealing property may be reduced. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a synthetic resin cap capable of improving the sealing property of a container mouth.
【０００６】[0006]
【課題を解決するための手段】本発明の合成樹脂製キャ
ップは、天板部とその周縁から垂下した筒部を備え、天
板部内面に、容器口部内に嵌入される環状の内側シール
部が下方に向けて突出形成された合成樹脂製キャップで
あって、該キャップの構成材料が、ポリオレフィン系エ
ラストマを１０〜３０重量％含むポリプロピレンである
ことを特徴とする。ポリオレフィン系エラストマとして
は、エチレンプロピレンラバーおよび／またはエチレン
ブタジエンラバーを用いるのが好ましい。According to the present invention, there is provided a synthetic resin cap comprising a top plate portion and a cylindrical portion hanging down from the periphery thereof, and an annular inner seal portion fitted into a container mouth portion on an inner surface of the top plate portion. Is a synthetic resin cap protruding downward, wherein the constituent material of the cap is polypropylene containing 10 to 30% by weight of a polyolefin-based elastomer. As the polyolefin-based elastomer, it is preferable to use ethylene propylene rubber and / or ethylene butadiene rubber.
【０００７】[0007]
【発明の実施の形態】以下、本発明の合成樹脂製キャッ
プの一実施形態を、図１ないし図３を利用して説明す
る。本実施形態の合成樹脂製キャップ２１は、円板状の
天板部２２と、その周縁から垂下する筒部２３とを備
え、筒部２３は水平スコア２６によって水平スコア２６
より上部の主部２８と多数の細いブリッジ２７によって
該主部２８の下端に連結されたＴＥリング部２９とに区
画されている。主部２８の内壁面には容器口部４１ａの
雄ネジ４２に螺合するネジ部３０が形成されている。Ｔ
Ｅリング部２９の内壁面には、キャップ本体２４を開栓
する際に容器４１に設けられた係合突起４３に係止して
ＴＥリング部２９の移動を阻止する複数の薄板状のウィ
ング３１と、これらウイング３１に隣接して設けられた
ビード３２が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a synthetic resin cap according to the present invention will be described below with reference to FIGS. The synthetic resin cap 21 of the present embodiment includes a disk-shaped top plate portion 22 and a tubular portion 23 hanging down from the periphery thereof.
It is divided into an upper main part 28 and a TE ring part 29 connected to the lower end of the main part 28 by a number of narrow bridges 27. On the inner wall surface of the main part 28, a screw part 30 to be screwed with the male screw 42 of the container mouth part 41a is formed. T
On the inner wall surface of the E-ring portion 29, a plurality of thin wings 31 are engaged with engagement projections 43 provided on the container 41 to prevent the movement of the TE ring portion 29 when the cap body 24 is opened. And a bead 32 provided adjacent to these wings 31.
【０００８】天板部２２の内面側には、キャップ２１を
容器口部に装着した際に容器口部内に嵌入される環状の
内側シール部３５が下方に向けて突出形成されている。
内側シール部３５下部の外周には、径方向外方に突出し
た環状凸部３６が形成されている。環状凸部３６は、外
径が容器口部４１ａ内径よりも若干大きくなるように形
成されており、内側シール部３５が容器口部４１ａ内に
嵌入した際に、内側シール部３５の弾性力によって環状
凸部３６が容器口部４１ａの内壁面に押しつけられるよ
うになっている。On the inner surface side of the top plate portion 22, an annular inner seal portion 35 which is fitted into the container opening when the cap 21 is attached to the container opening is formed so as to protrude downward.
On the outer periphery of the lower portion of the inner seal portion 35, an annular convex portion 36 protruding radially outward is formed. The annular convex portion 36 is formed so that the outer diameter is slightly larger than the inner diameter of the container mouth portion 41a, and when the inner seal portion 35 is fitted into the container mouth portion 41a, the elastic force of the inner seal portion 35 causes The annular convex portion 36 is pressed against the inner wall surface of the container opening 41a.
【０００９】内側シール部３５の突出長さ、すなわち図
２に示す長さａは、２〜６ｍｍとするのが好ましい。ま
た内側シール部３５の厚さｂは、１〜２ｍｍとするのが
好ましい。また環状凸部３６の突出高さｃは、０．１〜
０．５ｍｍとするのが好ましい。The length of the protrusion of the inner seal portion 35, that is, the length a shown in FIG. 2, is preferably 2 to 6 mm. The thickness b of the inner seal portion 35 is preferably set to 1 to 2 mm. The protruding height c of the annular convex portion 36 is 0.1 to
It is preferably 0.5 mm.
【００１０】また、内側シール部３５よりもやや外周側
の天板部２２には、キャップ２１を容器口部４１ａに装
着した際に容器口部４１ａの外周面に当接するように下
方に向けて突出する環状の外側シール部３８が形成され
ている。In addition, the top plate portion 22 slightly outer peripheral side than the inner seal portion 35 is directed downward so as to contact the outer peripheral surface of the container opening 41a when the cap 21 is mounted on the container opening 41a. A protruding annular outer seal portion 38 is formed.
【００１１】本実施形態のキャップ２１の構成材料は、
ポリオレフィン系エラストマを１０〜３０重量％含むポ
リプロピレンである。ポリオレフィン系エラストマとし
ては、エチレンプロピレンラバー（エチレン−プロピレ
ン共重合体、以下、ＥＰＲという）および／またはエチ
レンブタジエンラバー（エチレン−ブタジエン共重合
体、以下、ＥＢＲという）を用いるのが好ましい。ＥＰ
Ｒを用いる場合には、ＥＰＲ中のエチレン含有量を３０
〜７０重量％とするのが好ましい。ＥＢＲを用いる場合
には、ＥＢＲ中のエチレン含有量を３０〜７０重量％と
するのが好ましい。The constituent material of the cap 21 of the present embodiment is as follows.
Polypropylene containing 10 to 30% by weight of a polyolefin-based elastomer. As the polyolefin-based elastomer, it is preferable to use ethylene propylene rubber (ethylene-propylene copolymer, hereinafter referred to as EPR) and / or ethylene butadiene rubber (ethylene-butadiene copolymer, hereinafter referred to as EBR). EP
When R is used, the ethylene content in the EPR is 30
It is preferable to set it to 70% by weight. When EBR is used, the ethylene content in EBR is preferably set to 30 to 70% by weight.
【００１２】ポリオレフィン系エラストマの含有量は、
１０〜３０重量％（好ましくは１０〜２５重量％、さら
に好ましくは１５〜２０重量％）とされる。この含有量
が１０重量％未満であると、内側シール部３５の曲げ弾
性が不足し、内側シール部３５の容器口部内壁に対する
シール性が不十分となり、密封性が低くなることがあ
る。また含有量が３０重量％を越えると、キャップ２１
の耐熱性が低下し、高温の内容液を充填することなどに
よりキャップ２１が高温となった場合に、内側シール部
３５の変形が起こりやすくなり、内側シール部３５の変
形に起因して内側シール部３５の容器口部内壁に対する
シール性が不十分となり、密封性が低くなることがあ
る。The content of the polyolefin elastomer is as follows:
The content is 10 to 30% by weight (preferably 10 to 25% by weight, more preferably 15 to 20% by weight). If the content is less than 10% by weight, the bending elasticity of the inner seal portion 35 is insufficient, and the sealing property of the inner seal portion 35 with respect to the inner wall of the container mouth becomes insufficient, so that the sealing property may be reduced. If the content exceeds 30% by weight, cap 21
When the cap 21 is heated to a high temperature, for example, by filling a high-temperature content liquid, the inner seal portion 35 is easily deformed, and the inner seal portion 35 is deformed. In some cases, the sealing performance of the portion 35 with respect to the inner wall of the container mouth becomes insufficient, and the sealing performance is reduced.
【００１３】このキャップ２１を容器口部４１ａに装着
すると、内側シール部３５は容器口部４１ａの内部に嵌
入する。この際、内側シール部３５は、容器口部４１ａ
によってわずかに内方に弾性的に曲げ変形し、その復元
力によって環状凸部３６が容器口部４１ａの内壁面に押
しつけられ、これによって環状凸部３６が容器口部４１
ａの内壁に隙間なく当接し、容器口部４１ａは密封され
る。また、筒部２３上端部の外側シール部３８は、容器
口部４１ａの外周面に当接し、密封性が高められる。When the cap 21 is attached to the container opening 41a, the inner seal portion 35 fits inside the container opening 41a. At this time, the inner seal portion 35 is
And the annular convex portion 36 is pressed against the inner wall surface of the container mouth portion 41a by the restoring force, whereby the annular convex portion 36 is pushed into the container mouth portion 41a.
The container mouth 41a is hermetically sealed by contacting the inner wall of the container a without any gap. Further, the outer seal portion 38 at the upper end portion of the cylindrical portion 23 comes into contact with the outer peripheral surface of the container mouth portion 41a, and the sealing performance is improved.
【００１４】本実施形態のキャップ２１にあっては、該
キャップ２１の構成材料が、ポリオレフィン系エラスト
マを１０〜３０重量％含むポリプロピレンであるので、
該構成材料としてポリプロピレンのみを用いた場合に比
べ内側シール部３５の曲げ弾性を高めることができる。
このため、容器口部４１ａの内面形状によらず、環状凸
部３６が内側シール部３５の弾性力によって容器口部４
１ａ内壁に隙間なく当接するようになる。また構成材料
としてポリエチレンのみを用いた場合に比べ耐熱性を高
め、キャップが高温となった場合でも内側シール部３５
の変形が起こりにくくすることができる。このため、落
下などにより衝撃が加わった場合においても、環状凸部
３６が容器口部４１ａ内壁に隙間なく当接するようにな
る。従って、内側シール部３５の容器口部内壁に対する
シール性を高め、容器口部４１ａの密封性を向上させる
ことができる。In the cap 21 of the present embodiment, since the constituent material of the cap 21 is polypropylene containing 10 to 30% by weight of a polyolefin-based elastomer,
The bending elasticity of the inner seal portion 35 can be increased as compared with the case where only polypropylene is used as the constituent material.
For this reason, regardless of the inner surface shape of the container opening 41 a, the annular convex portion 36 is formed by the elastic force of the inner seal portion 35 and the container opening 4
1a comes into contact with the inner wall without any gap. Further, the heat resistance is increased as compared with the case where only polyethylene is used as a constituent material, and even when the cap is heated to a high temperature, the inner seal portion 35 is formed.
Can be made less likely to occur. Therefore, even when an impact is applied due to a drop or the like, the annular convex portion 36 comes into contact with the inner wall of the container opening 41a without any gap. Therefore, the sealing performance of the inner seal portion 35 with respect to the inner wall of the container mouth can be improved, and the sealing performance of the container mouth 41a can be improved.
【００１５】[0015]
【実施例】（試験例１）ＥＰＲを含有するポリプロピレ
ン材料を用いて、図１に示すものと同様のキャップを１
０個作製し、これらキャップの密封性を次に示すように
して調べた。キャップの口内径（ネジ谷径）は２７．５
ｍｍとし、内側シール部３５の突出長さａは４ｍｍ、厚
さｂは１．５ｍｍ、環状凸部３６の突出高さｃは０．２
ｍｍとした。これら１０個のキャップを、それぞれ８７
℃の温水を充填したＰＥＴボトル（口部上端の外径２
４．１ｍｍ、内径１９．３ｍｍ、容量３５０ｍｌのも
の）の口部に装着し、これらキャップおよび容器の外面
に、８５℃の温水をシャワー状にして２０分間にわたっ
て連続的に供給し、キャップおよび容器を加温した。こ
れらキャップおよび容器を室温まで冷却した後、キャッ
プを下に向けた倒立状態で１ｍの高さから落下させ、キ
ャップに衝撃を与えた。EXAMPLES (Test Example 1) A cap similar to that shown in FIG.
Zero caps were produced and the sealing properties of these caps were examined as follows. Cap inner diameter (screw root diameter) is 27.5
mm, the protrusion length a of the inner seal portion 35 is 4 mm, the thickness b is 1.5 mm, and the protrusion height c of the annular protrusion 36 is 0.2.
mm. Each of these 10 caps is 87
PET bottle filled with warm water at ℃
4.1 mm, an inner diameter of 19.3 mm, and a capacity of 350 ml), and hot water of 85 ° C. was continuously supplied as a shower to the outer surfaces of the cap and the container over a period of 20 minutes. Was heated. After cooling the cap and the container to room temperature, the cap was dropped from a height of 1 m in an inverted state with the cap facing down, and the cap was impacted.
【００１６】次に、各キャップからの内容液漏れの有無
を調べ、１０個のうち内容液漏れが生じたものの数を調
べた。結果を表１に示す。また、これらキャップを取り
外し、内側シール部３５の曲げ弾性率（ＪＩＳＫ ６９
０２に準拠）を測定した結果を表１に併せて示す。また
キャップ材料の融点を表１に併せて示す。Next, the presence / absence of leakage of the contents liquid from each cap was examined, and the number of the contents liquid leakage out of the ten caps was examined. Table 1 shows the results. Further, these caps are removed, and the flexural modulus of the inner seal portion 35 (JISK 69
Table 2 also shows the results of the measurements. Table 1 also shows the melting point of the cap material.
【００１７】（試験例２〜１２）キャップ構成材料を表
１に示すとおりとすること以外は試験例１と同様にして
キャップを作製し、該キャップを、試験例１と同様の密
封性試験に供した。また同様に曲げ弾性率、融点を調べ
た。なお、表中、ＰＰとはポリプロピレンを指し、ＨＤ
ＰＥとは高密度ポリエチレンを指す。また、ＥＰＲ中の
エチレン含有量は５０重量％とし、ＥＢＲ中のエチレン
含有量は５０重量％とした。(Test Examples 2 to 12) A cap was prepared in the same manner as in Test Example 1 except that the constituent materials of the cap were as shown in Table 1, and the cap was subjected to the same sealing test as in Test Example 1. Provided. Similarly, the flexural modulus and the melting point were examined. In the table, PP means polypropylene and HD
PE refers to high density polyethylene. The ethylene content in EPR was 50% by weight, and the ethylene content in EBR was 50% by weight.
【００１８】[0018]
【表１】 [Table 1]
【００１９】上記試験の結果から、ポリオレフィン系エ
ラストマを１０〜３０重量％含むポリプロピレンをキャ
ップの構成材料として用いた場合には、材料の融点が高
いため耐熱性に優れ、しかも十分な曲げ弾性を示し、液
漏れが起こりにくくなったことが確認された。From the results of the above tests, it was found that when polypropylene containing 10 to 30% by weight of a polyolefin-based elastomer was used as a constituent material of the cap, the material had a high melting point, was excellent in heat resistance, and exhibited sufficient bending elasticity. It was confirmed that liquid leakage hardly occurred.
【００２０】[0020]
【発明の効果】以上説明したように、本発明の合成樹脂
製キャップは、天板部とその周縁から垂下した筒部を備
え、天板部内面に、該キャップを容器口部に装着した際
に該容器口部内に嵌入される環状の内側シール部が下方
に向けて突出形成された合成樹脂製キャップであって、
該キャップの構成材料が、ポリオレフィン系エラストマ
を１０〜３０重量％含むポリプロピレンであるので、構
成材料としてポリプロピレンのみを用いた場合に比べ内
側シール部の曲げ弾性を高めることができる。また構成
材料としてポリエチレンのみを用いた場合に比べ耐熱性
を高め、キャップが高温となった場合でも内側シール部
が変形しにくくすることができる。従って、内側シール
部の容器口部内壁に対するシール性を高め、容器口部の
密封性を向上させることができる。As described above, the synthetic resin cap of the present invention includes the top plate and the cylindrical portion hanging down from the periphery thereof, and the cap is attached to the inner surface of the top plate at the container opening. A synthetic resin cap in which an annular inner seal portion fitted into the container mouth portion is formed to project downward.
Since the constituent material of the cap is polypropylene containing 10 to 30% by weight of a polyolefin-based elastomer, the bending elasticity of the inner seal portion can be increased as compared with the case where only polypropylene is used as the constituent material. Further, the heat resistance can be increased as compared with the case where only polyethylene is used as the constituent material, and the inner seal portion can be made hard to be deformed even when the cap becomes high temperature. Therefore, the sealing property of the inner seal portion with respect to the inner wall of the container mouth can be enhanced, and the sealing property of the container mouth can be improved.
【図１】 本発明に係る合成樹脂製キャップの一実施形
態を示す断面図である。FIG. 1 is a sectional view showing an embodiment of a synthetic resin cap according to the present invention.
【図２】 図１に示す合成樹脂製キャップの要部拡大図
である。FIG. 2 is an enlarged view of a main part of the synthetic resin cap shown in FIG.
【図３】 図１に示す合成樹脂製キャップが容器に装着
された状態を示す断面図である。FIG. 3 is a cross-sectional view showing a state where the synthetic resin cap shown in FIG. 1 is attached to a container.
２１・・・キャップ、２２・・・天板部、２３・・・筒部、３５・
・・内側シール部21: cap, 22: top plate, 23: cylinder, 35
..Inner seals
Claims (2)
え、天板部内面に、容器口部内に嵌入される環状の内側
シール部が下方に向けて突出形成された合成樹脂製キャ
ップであって、 該キャップの構成材料が、ポリオレフィン系エラストマ
を１０〜３０重量％含むポリプロピレンであることを特
徴とする合成樹脂製キャップ。1. A synthetic resin cap comprising a top plate portion and a cylindrical portion hanging down from the periphery thereof, and an annular inner seal portion fitted into a container mouth protruding downward from an inner surface of the top plate portion. A cap made of a synthetic resin, wherein the constituent material of the cap is polypropylene containing 10 to 30% by weight of a polyolefin-based elastomer.
ンプロピレンラバーおよび／またはエチレンブタジエン
ラバーであることを特徴とする請求項１記載の合成樹脂
製キャップ。2. The synthetic resin cap according to claim 1, wherein the polyolefin-based elastomer is ethylene propylene rubber and / or ethylene butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26124399A JP2001080658A (en) | 1999-09-14 | 1999-09-14 | Synthetic resin cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26124399A JP2001080658A (en) | 1999-09-14 | 1999-09-14 | Synthetic resin cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001080658A true JP2001080658A (en) | 2001-03-27 |
Family
ID=17359137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26124399A Pending JP2001080658A (en) | 1999-09-14 | 1999-09-14 | Synthetic resin cap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001080658A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009102026A (en) * | 2007-10-22 | 2009-05-14 | Maruichi Fujii:Kk | Container made of fluororesin |
| US11505371B2 (en) | 2015-10-23 | 2022-11-22 | Husky Injection Molding Systems Ltd. | Containers and closures |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02191166A (en) * | 1989-01-11 | 1990-07-27 | Japan Crown Cork Co Ltd | Container lid for germ free packing container |
| JPH1036588A (en) * | 1996-07-17 | 1998-02-10 | Tosoh Corp | Polypropylene-based resin composition and cap |
| JPH10291550A (en) * | 1997-04-22 | 1998-11-04 | Toppan Printing Co Ltd | Cap made of polypropylene |
| JPH11278519A (en) * | 1998-03-31 | 1999-10-12 | Japan Crown Cork Co Ltd | Resin cap with pouring port excellent in anti-dripping property |
-
1999
- 1999-09-14 JP JP26124399A patent/JP2001080658A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02191166A (en) * | 1989-01-11 | 1990-07-27 | Japan Crown Cork Co Ltd | Container lid for germ free packing container |
| JPH1036588A (en) * | 1996-07-17 | 1998-02-10 | Tosoh Corp | Polypropylene-based resin composition and cap |
| JPH10291550A (en) * | 1997-04-22 | 1998-11-04 | Toppan Printing Co Ltd | Cap made of polypropylene |
| JPH11278519A (en) * | 1998-03-31 | 1999-10-12 | Japan Crown Cork Co Ltd | Resin cap with pouring port excellent in anti-dripping property |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009102026A (en) * | 2007-10-22 | 2009-05-14 | Maruichi Fujii:Kk | Container made of fluororesin |
| US11505371B2 (en) | 2015-10-23 | 2022-11-22 | Husky Injection Molding Systems Ltd. | Containers and closures |
| US11801976B2 (en) | 2015-10-23 | 2023-10-31 | Husky Injection Molding Systems Ltd. | Containers and closures |
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