JPH05170241A - Polyester container - Google Patents

Polyester container

Info

Publication number
JPH05170241A
JPH05170241A JP33846691A JP33846691A JPH05170241A JP H05170241 A JPH05170241 A JP H05170241A JP 33846691 A JP33846691 A JP 33846691A JP 33846691 A JP33846691 A JP 33846691A JP H05170241 A JPH05170241 A JP H05170241A
Authority
JP
Japan
Prior art keywords
container
polyester
resin
flange portion
flange
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
Application number
JP33846691A
Other languages
Japanese (ja)
Inventor
Toshiaki Kawasumi
俊明 川澄
Naoki Yukita
直樹 雪田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP33846691A priority Critical patent/JPH05170241A/en
Publication of JPH05170241A publication Critical patent/JPH05170241A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023—Neck construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023—Neck construction
    • B65D1/0246—Closure retaining means, e.g. beads, screw-threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2001/00—Articles provided with screw threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

PURPOSE:To improve the heat resistance and mechanical strength of a mouth cap part for a polyester container which consists of a container main body part made of a polyester resin, and a mouth cap part and support ring at least the outer peripheral surface parts of which are made of a heat resistant resin. CONSTITUTION:A support ring 3 is constituted by combining a first flange part 3a made of a polyester resin 7, which is integrally provided with a container main body 1, and a second flange part 3b made of a heat resistant resin, which is integrally provided with a mouth cap part 2 at the bottom part of the mouth cap part 2, which are put together. Since the mouth cap part is superior in heat resistance and mechanical strength, the title container is extremely useful for industrial use as a container, etc., in which a content requiring a heat sterilization is encalsulated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明はポリエステル容器に係
り、詳しくは、口栓部の耐熱性、機械的強度が改良され
たポリエステル容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyester container, and more particularly to a polyester container having improved heat resistance and mechanical strength at its spout.

【０００２】[0002]

【従来の技術】ジュース等の液体封入用容器として、図
１に示す如く、大径筒状で、上部が窄まっている容器本
体部（胴部）１と、該容器本体部１の上部に連なってい
る小径筒状の口栓部２とを有し、容器本体部１と口栓部
２との境界付近に外向き鍔状のサポートリング３が周設
されている容器１０が既に実用化されている。2. Description of the Related Art As a container for enclosing a liquid such as juice, as shown in FIG. 1, a container main body (body) 1 having a large-diameter cylindrical shape and a narrowed upper part, and an upper part of the container main body 1 are provided. A container 10 having a continuous small-diameter cylindrical plug part 2 and an outward flanged support ring 3 provided around the boundary between the container body 1 and the plug part 2 has already been put into practical use. Has been done.

【０００３】なお、この容器１０は、少なくとも容器本
体１がポリエチレンテレフタレート樹脂を主体とするポ
リエステル樹脂製であり、口栓部２のサポートリング３
上方の外周面にはキャップ装着のためのねじ４及び段差
部５が形成されている。At least the container body 1 of the container 10 is made of a polyester resin containing polyethylene terephthalate resin as a main component, and the support ring 3 of the plug portion 2 is used.
A screw 4 for mounting the cap and a step portion 5 are formed on the upper outer peripheral surface.

【０００４】このようなポリエステル容器のうち、天然
果汁入りのジュース等の熱殺菌を必要とする内容物を充
填する容器は、従来、容器本体部１を高温で熱処理しな
がら成形し、また、口栓部２を結晶化処理するか、或い
は、該ポリエステル樹脂よりガラス転移温度の高い耐熱
性樹脂で構成するか、この耐熱性樹脂とポリエステル樹
脂との多層構造とすることにより、耐熱性を向上させて
いる。具体的には、図１１に示す如く、サポートリング
３より上の口栓部２を耐熱性樹脂６製としたり、図１２
に示す如く、耐熱性樹脂６とポリエステル樹脂７との２
層構造としたり、図１３に示す如く、サポートリング３
を含む口栓部２を耐熱性樹脂６とポリエステル樹脂７と
の２層構造としている。Among such polyester containers, the containers for filling the contents requiring heat sterilization such as juice containing natural fruit juice are conventionally formed by heat-treating the container body 1 at a high temperature, and The heat resistance is improved by crystallizing the plug portion 2 or by constructing the heat resistant resin having a glass transition temperature higher than that of the polyester resin, or by forming a multilayer structure of the heat resistant resin and the polyester resin. ing. Specifically, as shown in FIG. 11, the plug portion 2 above the support ring 3 is made of heat-resistant resin 6, or
As shown in Figure 2, the heat-resistant resin 6 and the polyester resin 7
The support ring 3 may have a layered structure or, as shown in FIG.
The plug portion 2 including is made to have a two-layer structure of a heat resistant resin 6 and a polyester resin 7.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、口栓部
を結晶化処理する方法では、口栓部の白化及び耐衝撃性
の低下等の問題がある。また、口栓部を多層化する方法
では、耐熱性が十分でなかったり、或いは、ポリエステ
ル樹脂と耐熱性樹脂との接合が不十分であるため、容器
に内容物を充填した後、キャッピングを行う際の圧力に
より、口栓部のサポートリング部分の界面部よりポリエ
ステル樹脂と耐熱性樹脂の剥離が生じやすいという問題
がある。However, the method of crystallizing the plug portion has problems such as whitening of the plug portion and deterioration of impact resistance. Further, in the method of forming the multi-layered spout part, the heat resistance is not sufficient or the polyester resin and the heat resistant resin are not sufficiently joined, so that the container is capped after filling the contents. There is a problem that the polyester resin and the heat-resistant resin are easily peeled off from the interface portion of the support ring portion of the spout portion due to the pressure at the time.

【０００６】因みに、図１１〜１３に示す従来のポリエ
ステル容器のうち、図１１、１２のポリエステル容器で
は、サポートリング３の部分の耐熱性に劣るため、熱殺
菌した内容物を充填してキャッピングを行う場合、欠陥
が生じ易い。また、図１３のポリエステル容器では、サ
ポートリング３部分の耐熱性は一応確保できるが、容器
本体部１と連続したポリエステル樹脂７の層がサポート
リング３の端面で接触していないため、キャッピング時
の圧力により、エッジ部８の部分での剥離が発生し易く
不適当である。Incidentally, among the conventional polyester containers shown in FIGS. 11 to 13, in the polyester containers shown in FIGS. 11 and 12, the heat resistance of the portion of the support ring 3 is inferior. If done, defects are likely to occur. Further, in the polyester container of FIG. 13, the heat resistance of the support ring 3 portion can be secured for the time being, but since the layer of the polyester resin 7 continuous with the container body portion 1 is not in contact with the end surface of the support ring 3, The pressure is apt to cause peeling at the edge portion 8 and is inappropriate.

【０００７】本発明は上記従来の問題点を解決し、口栓
部の耐熱性、機械的強度が改良されたポリエステル容器
を提供することを目的とする。An object of the present invention is to solve the above conventional problems and to provide a polyester container in which the heat resistance and mechanical strength of the spout are improved.

【０００８】[0008]

【課題を解決するための手段】請求項１のポリエステル
容器は、大径筒状であると共に上部が窄まっている容器
本体部と、該容器本体部の該上部に連なっている小径筒
状の口栓部とを有し、該容器本体部と該口栓部との境界
付近には外向き鍔状のサポートリングが周設されている
容器であって、該容器本体部は、ポリエチレンテレフタ
レート樹脂を主体とするポリエステル樹脂製であり、前
記口栓部は、少なくとも外周面部分が該ポリエステル樹
脂よりも耐熱性の高い耐熱性樹脂製であるポリエステル
容器において、前記容器本体部の上部に、該容器本体部
と同材質の樹脂よりなる第１のフランジ部が設けられ、
前記口栓部の下部に、前記耐熱性樹脂と同材質の樹脂よ
りなる第２のフランジ部が設けられ、該第１のフランジ
部と第２のフランジ部とが重なり合って結合されること
によって前記サポートリングが構成されていることを特
徴とする。A polyester container according to claim 1 has a large-diameter cylindrical shape and a container main body having a narrowed upper portion, and a small-diameter cylindrical shape connected to the upper portion of the container main body. A container having a spout part, and an outward flange-shaped support ring provided around the boundary between the container body part and the spout part, wherein the container body part is made of polyethylene terephthalate resin. In a polyester container mainly made of a polyester resin in which at least the outer peripheral surface portion is made of a heat-resistant resin having a higher heat resistance than the polyester resin, the container is provided on the upper part of the container body. A first flange portion made of resin of the same material as the main body portion is provided,
A second flange portion made of a resin of the same material as the heat-resistant resin is provided under the spout portion, and the first flange portion and the second flange portion are overlapped and coupled to each other, It is characterized in that a support ring is configured.

【０００９】請求項２のポリエステル容器は、請求項１
のポリエステル容器において、前記第１及び第２のフラ
ンジ部のうち一方のフランジ部は他方のフランジ部より
も大径であり、この大径のフランジ部の外周縁部が小径
のフランジ部の外周端面に被さっていることを特徴とす
る。The polyester container of claim 2 is the polyester container of claim 1.
In the polyester container, one of the first and second flange portions has a larger diameter than the other flange portion, and the outer peripheral edge portion of the large-diameter flange portion is the outer peripheral end surface of the small-diameter flange portion. It is characterized by covering the.

【００１０】請求項３のポリエステル容器は、請求項２
のポリエステル容器において、前記大径のフランジ部
は、前記小径のフランジ部の外周端縁を回り込み、重な
り合ったフランジ面と反対側のフランジ面を被覆する被
覆部を有していることを特徴とする。The polyester container of claim 3 is the polyester container of claim 2.
In the polyester container described above, the large-diameter flange portion has a covering portion that wraps around the outer peripheral edge of the small-diameter flange portion and covers the overlapping flange surface and the opposite flange surface. ..

【００１１】請求項４のポリエステル容器は、請求項１
ないし３のいずれか１項のポリエステル容器において、
前記口栓部の外周面側が前記耐熱性樹脂製であり、該口
栓部の内周面側が前記容器本体部と同材質のポリエステ
ル樹脂製であって、且つこの内周面側のポリエステル樹
脂が前記容器本体部のポリエステル樹脂に連なっている
ことを特徴とする。The polyester container according to claim 4 is the polyester container according to claim 1.
In the polyester container according to any one of 1 to 3,
The outer peripheral surface side of the spout is made of the heat-resistant resin, the inner peripheral surface side of the spout is made of polyester resin of the same material as the container body, and the polyester resin on the inner peripheral surface side is It is characterized in that it is connected to the polyester resin of the container body.

【００１２】なお、本発明の少なくとも容器本体部を構
成するポリエステル樹脂は、ポリエチレンテレフタレー
トのホモポリマーを主成分とするが、テレフタル酸成分
の一部を例えばイソフタル酸、ナフタリンジカルボン
酸、ジフェニルジカルボン酸、ジフェノキシエタンジカ
ルボン酸、ジフェニルエーテルジカルボン酸、ジフェニ
ルスルホンジカルボン酸等の芳香族ジカルボン酸、ヘキ
サヒドロテレフタル酸、ヘキサヒドロイソフタル酸等の
脂環族ジカルボン酸、アジピン酸、セバチン酸、アゼラ
イン酸等の脂肪族ジカルボン酸、Ｐ−β−ヒドロキシエ
トキシ安息香酸等のオキシ酸等の二官能性カルボン酸等
で置換したものであっても良い。また、エチレングリコ
ール成分の一部を、例えばトリメチレングリコール、テ
トラメチレングリコール、ヘキサメチレングリコール、
デカメチレングリコール、ネオペンチルグリコール、ジ
エチレングリコール、１，１−シクロヘキサンジメチロ
ール、１，４−シクロヘキサンジメチロール、２，２−
ビス（４’−β−ヒドロキシエトキシフェニル）プロパ
ン、ビス（４’−β−ヒドロキシエトキシフェニル）ス
ルホン酸等の他のグリコール及びこれらの機能的誘導体
の多官能化合物で置換したものであっても良い。これら
二官能性カルボン酸成分、グリコール成分の置換割合
は、通常、各々、１５モル％以下、好ましくは５モル％
以下である。The polyester resin constituting at least the container body of the present invention contains a homopolymer of polyethylene terephthalate as a main component, but a part of the terephthalic acid component is, for example, isophthalic acid, naphthalene dicarboxylic acid, diphenyl dicarboxylic acid, Aromatic dicarboxylic acids such as diphenoxyethane dicarboxylic acid, diphenyl ether dicarboxylic acid, diphenyl sulfone dicarboxylic acid, alicyclic dicarboxylic acids such as hexahydroterephthalic acid and hexahydroisophthalic acid, aliphatic compounds such as adipic acid, sebacic acid and azelaic acid It may be substituted with a difunctional carboxylic acid such as dicarboxylic acid or oxyacid such as P-β-hydroxyethoxybenzoic acid. In addition, a part of the ethylene glycol component, for example, trimethylene glycol, tetramethylene glycol, hexamethylene glycol,
Decamethylene glycol, neopentyl glycol, diethylene glycol, 1,1-cyclohexane dimethylol, 1,4-cyclohexane dimethylol, 2,2-
Other glycols such as bis (4'-β-hydroxyethoxyphenyl) propane and bis (4'-β-hydroxyethoxyphenyl) sulfonic acid, and those substituted with polyfunctional compounds of their functional derivatives may be used. .. The substitution ratio of these bifunctional carboxylic acid component and glycol component is usually 15 mol% or less, preferably 5 mol% each.
It is below.

【００１３】また、かかるポリエステル樹脂の固有粘度
は、成形性の面から、通常、０．４〜２．０、好ましく
は０．５〜１．２の範囲から選択される。The intrinsic viscosity of the polyester resin is usually selected from the range of 0.4 to 2.0, preferably 0.5 to 1.2 from the viewpoint of moldability.

【００１４】一方、本発明のポリエステル容器の口栓部
に用いる耐熱性樹脂としては、ポリカーボネート、ポリ
アリレート、結晶化ポリエチレンテレフタレート樹脂、
結晶化ポリブチレンテレフタレート、ガラス強化ポリエ
チレンテレフタレート樹脂の如く、８０〜１００℃にお
ける耐熱性が、実質上非晶質の前記のポリエチレンテレ
フタレートを主体とするポリエステル樹脂より優れてい
る樹脂が挙げられる。On the other hand, as the heat resistant resin used for the plug portion of the polyester container of the present invention, polycarbonate, polyarylate, crystallized polyethylene terephthalate resin,
Resins such as crystallized polybutylene terephthalate and glass-reinforced polyethylene terephthalate resin, which have heat resistance at 80 to 100 ° C. superior to the above-mentioned substantially amorphous polyester resin mainly composed of polyethylene terephthalate, may be mentioned.

【００１５】本発明のポリエステル容器は、通常の成形
法、即ち、射出成形にてプリフォームを成形し、更に二
軸延伸ブロー成形にて製造される。具体的には、例え
ば、２台の射出成形機を用いてポリエステル樹脂と耐熱
性樹脂とを別々に可塑化し、金型の同一キャビティー内
で該２種の樹脂を遂次射出する方法、或いは、予め所定
の形状に成形した耐熱性樹脂を、１次成形品であるプリ
フォームの口栓部に被着した後に、プリフォームを２軸
延伸ブロー成形することにより容器の口栓部の耐熱性を
向上させる方法等が例示される。The polyester container of the present invention is manufactured by a usual molding method, that is, by molding a preform by injection molding and further by biaxial stretching blow molding. Specifically, for example, a method of plasticizing a polyester resin and a heat-resistant resin separately by using two injection molding machines, and successively injecting the two resins in the same cavity of the mold, or The heat resistance of the plug part of the container is obtained by applying a heat-resistant resin that has been molded in a predetermined shape to the plug part of the preform, which is the primary molded product, and then performing biaxial stretch blow molding of the preform. Examples of methods for improving

【００１６】[0016]

【作用】本発明のポリエステル容器においては、サポー
トリングが、ポリエステル樹脂製の第１のフランジ部と
耐熱性樹脂製の第２のフランジ部とを重なり合わせて結
合させることにより構成される。このため、サポートリ
ング部の耐熱性は耐熱性樹脂製の第２のフランジ部で十
分に確保される。一方、キャッピング圧力に対する耐圧
性は、ポリエステル樹脂製の第２のフランジ部で十分に
確保される。In the polyester container of the present invention, the support ring is constructed by joining the first flange portion made of polyester resin and the second flange portion made of heat resistant resin so as to overlap each other. Therefore, the heat resistance of the support ring portion is sufficiently secured by the second flange portion made of heat resistant resin. On the other hand, the pressure resistance against the capping pressure is sufficiently secured by the second flange portion made of polyester resin.

【００１７】従って、口栓部の耐熱性及び機械的強度が
共に著しく改善されたポリエステル容器が提供される。Therefore, a polyester container in which both the heat resistance and the mechanical strength of the spout are remarkably improved is provided.

【００１８】請求項２，３，４のポリエステル容器によ
れば、口栓部の機械的強度はより一層改善される。According to the polyester container of claims 2, 3 and 4, the mechanical strength of the spout is further improved.

【００１９】[0019]

【実施例】以下、図面を参照して本発明の実施例につき
具体的に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.

【００２０】図１は本発明の実施例に係るポリエステル
容器の口栓部近傍の正面図であり、図２〜図１０は各々
異なる実施例に係るポリエステル容器の口栓部近傍の縦
断面図である。各図において、１は容器本体部、２は口
栓部、３はサポートリング、４はねじ、５は段差部、６
は耐熱性樹脂、７はポリエステル樹脂、１０Ａ〜１０Ｉ
はポリエステル容器を示す。FIG. 1 is a front view of the vicinity of the mouth plug portion of a polyester container according to an embodiment of the present invention, and FIGS. 2 to 10 are vertical sectional views of the vicinity of the mouth plug portions of polyester containers according to different embodiments. is there. In each drawing, 1 is a container body, 2 is a spigot, 3 is a support ring, 4 is a screw, 5 is a step, 6
Is a heat resistant resin, 7 is a polyester resin, 10A to 10I
Indicates a polyester container.

【００２１】図２に示すポリエステル容器１０Ａは、ポ
リエステル樹脂７製容器本体部１の上部に容器本体部１
と一体に設けられたポリエステル樹脂７製の第１のフラ
ンジ部３ａと、耐熱性樹脂６製口栓部２の下部に、口栓
部２と一体に設けられた耐熱性樹脂６製の第２のフラン
ジ部３ｂとが重なり合って結合されることによって、サ
ポートリング３が構成されたものである。A polyester container 10A shown in FIG. 2 has a container body 1 formed on the top of a container body 1 made of polyester resin 7.
A first flange portion 3a made of polyester resin 7 integrally provided with the second flange 2a made of heat resistant resin 6 integrally provided with the stopper portion 2 at a lower portion of the mouth plug portion 2 made of heat resistant resin 6. The support ring 3 is configured by overlapping and coupling with the flange portion 3b of.

【００２２】図３に示すポリエステル容器１０Ｃは、図
２に示すポリエステル容器１０Ａに対して、耐熱性樹脂
６製の第２のフランジ部３ｂを、ポリエステル樹脂７製
の第１のフランジ部３ａよりも大径とし、この大径の第
２のフランジ部３ｂの外周縁部３ｃを小径の第１のフラ
ンジ部３ａの外周端面に被さるようにしたものである。The polyester container 10C shown in FIG. 3 is different from the polyester container 10A shown in FIG. 2 in that the second flange portion 3b made of the heat-resistant resin 6 is more than the first flange portion 3a made of polyester resin 7. The diameter is large, and the outer peripheral edge portion 3c of the large-diameter second flange portion 3b is covered with the outer peripheral end surface of the small-diameter first flange portion 3a.

【００２３】逆に、図４に示すポリエステル容器１０Ｃ
は、図２に示すポリエステル容器１０Ａに対して、ポリ
エステル樹脂７製の第１のフランジ部３ａを、耐熱性樹
脂６製の第２のフランジ部３ｂよりも大径とし、この大
径の第１のフランジ部３ａの外周縁部３ｃを小径の第２
のフランジ部３ｂの外周端面に被さるようにしたもので
ある。On the contrary, the polyester container 10C shown in FIG.
In the polyester container 10A shown in FIG. 2, the first flange portion 3a made of the polyester resin 7 has a larger diameter than the second flange portion 3b made of the heat-resistant resin 6, and the first The outer peripheral edge portion 3c of the flange portion 3a of the second
The outer peripheral end surface of the flange portion 3b is covered.

【００２４】また、図５、図６、図７に示すポリエステ
ル容器１０Ｄ，１０Ｅ，１０Ｆは、それぞれ、図１，図
２，図３に示すポリエステル容器１０Ａ，１０Ｂ，１０
Ｃに対して、口栓部２の口栓部の外周層２ａを耐熱性樹
脂６製とし、内周層２ｂを容器本体部１と同材質のポリ
エステル樹脂７製とし、これらポリエステル樹脂７製の
口栓部２の内周層２ｂ、第１のフランジ部３ｂ及び容器
本体部１を一体に形成したものである。The polyester containers 10D, 10E and 10F shown in FIGS. 5, 6 and 7 are polyester containers 10A, 10B and 10 shown in FIGS. 1, 2 and 3, respectively.
With respect to C, the outer peripheral layer 2a of the stopper portion of the stopper portion 2 is made of heat-resistant resin 6, the inner peripheral layer 2b is made of polyester resin 7 of the same material as the container body portion 1, and these polyester resin 7 The inner peripheral layer 2b of the spout part 2, the first flange part 3b, and the container body part 1 are integrally formed.

【００２５】図８に示すポリエステル容器１０Ｇは、図
５に示すポリエステル容器１０Ｄにおいて、口栓部の上
端縁部２ｃをポリエステル樹脂７製とし、この上端縁部
２ｃ，内周層２ｂ，第１のフランジ部３ａ及び容器本体
部１を一体に形成したものである。A polyester container 10G shown in FIG. 8 is the same as the polyester container 10D shown in FIG. 5, except that the upper edge 2c of the spigot is made of polyester resin 7, and the upper edge 2c, the inner peripheral layer 2b, and the first outer layer 2c. The flange portion 3a and the container body 1 are integrally formed.

【００２６】図９，図１０に示すポリエステル容器１０
Ｈ，１０Ｉは、それぞれ、図４，図７に示すポリエステ
ル容器１０Ｃ，１０Ｆにおいて、大径の第１のフランジ
部１ａを小径の第２のフランジ部１ｂの外周端縁に回り
込ませ、重なり合ったフランジ面と反対側のフランジ面
を被覆する被覆部３ｅを形成し、容器本体１、第１のフ
ランジ部３ａ，３ｄ及び被覆部３ｅ（図１０のポリエス
テル容器１０Ｉにおいては、更に、口栓部２の内周層２
ｂ）を、ポリエステル樹脂７で一体に形成したものであ
る。Polyester container 10 shown in FIGS. 9 and 10.
H and 10I are, in the polyester containers 10C and 10F shown in FIGS. 4 and 7, respectively, the large-diameter first flange portion 1a is wrapped around the outer peripheral edge of the small-diameter second flange portion 1b, and the overlapped flanges are formed. A covering portion 3e for covering the flange surface opposite to the surface is formed, and the container body 1, the first flange portions 3a and 3d, and the covering portion 3e (in the polyester container 10I of FIG. Inner layer 2
b) is integrally formed of polyester resin 7.

【００２７】いずれのポリエステル容器においても、サ
ポートリングが、ポリエステル樹脂製の第１のフランジ
部と耐熱性樹脂製の第２のフランジ部とを重なり合わせ
て結合させることにより構成されるため、サポートリン
グ部の耐熱性は耐熱性樹脂製の第２のフランジ部で十分
に確保される。一方、キャッピング圧力に対する耐圧性
は、ポリエステル樹脂製の第２のフランジ部で十分に確
保されるため、キャッピング時のポリエステル樹脂層と
耐熱性樹脂層との界面における圧力が緩和され、両層間
の界面剥離が防止される。In any of the polyester containers, the support ring is constructed by joining the first flange portion made of polyester resin and the second flange portion made of heat-resistant resin so as to overlap each other, and thus the support ring is formed. The heat resistance of the part is sufficiently ensured by the second flange part made of heat resistant resin. On the other hand, since the pressure resistance against the capping pressure is sufficiently secured by the second flange portion made of polyester resin, the pressure at the interface between the polyester resin layer and the heat resistant resin layer at the time of capping is relaxed, and the interface between both layers is relaxed. Peeling is prevented.

【００２８】なお、本発明において、ポリエステル樹脂
製の第１のフランジ部と耐熱性樹脂製の第２のフランジ
部とは、サポートリングをほぼ水平に上下２層に分離す
るように形成するのが好ましい。In the present invention, the first flange portion made of polyester resin and the second flange portion made of heat-resistant resin are formed so that the support ring is separated substantially horizontally into upper and lower two layers. preferable.

【００２９】また、口栓部を耐熱性樹脂製の外周層と、
ポリエステル樹脂製の内周層とで構成する場合、口栓部
の耐熱性を十分に確保するために、耐熱性樹脂製の外周
層の層厚さを、ポリエステル樹脂製の内周層の層厚さよ
りも厚くすることが好ましい。具体的には、図５に示す
如く、口栓部のねじ４及び段差部５を除く基層部分にお
いて、耐熱性樹脂製外周層２ａの厚さｄ1 を、ポリエス
テル樹脂製内周層２ｂの厚さｄ2 よりも厚くするのが好
ましい。In addition, the spout part is made of a heat-resistant resin outer peripheral layer,
When configured with an inner peripheral layer made of polyester resin, the layer thickness of the outer peripheral layer made of heat resistant resin should be the same as the layer thickness of the inner peripheral layer made of polyester resin in order to ensure sufficient heat resistance of the spout. It is preferable that the thickness is larger than that. Specifically, as shown in FIG. 5, in the base layer portion excluding the screw 4 and the step portion 5 of the spout portion, the thickness d 1 of the heat-resistant resin outer peripheral layer 2a is set to the thickness of the polyester resin inner peripheral layer 2b. The thickness is preferably thicker than d 2 .

【００３０】このように、口栓部に十分な耐熱性樹脂層
の厚さを確保することにより、口栓部の耐熱性を向上さ
せると共に、予め所定形状に成形した耐熱性樹脂製外周
層構成部を用いて、ポリエステル樹脂の射出成形により
容器を成形する際の、射出圧力による耐熱性樹脂製外周
層構成部の変形を防止することができ、工業的に極めて
有利である。By thus ensuring a sufficient thickness of the heat-resistant resin layer in the spout part, the heat resistance of the spout part is improved, and at the same time, the heat-resistant resin outer peripheral layer formed in a predetermined shape in advance. It is possible to prevent deformation of the heat-resistant resin outer peripheral layer forming portion due to injection pressure when molding a container by injection molding of a polyester resin by using the portion, which is extremely advantageous industrially.

【００３１】[0031]

【発明の効果】以上詳述した通り、本発明のポリエステ
ル容器は、口栓部の耐熱性及び機械的強度に優れている
ため、熱殺菌を要する内容物を封入する容器等として、
工業的に極めて有用である。As described in detail above, since the polyester container of the present invention is excellent in heat resistance and mechanical strength of the spigot, it can be used as a container for enclosing contents requiring heat sterilization.
It is extremely useful industrially.

【００３２】特に、請求項２，３，４のポリエステル容
器によれば、口栓部の機械的強度はより一層改善され
る。In particular, according to the polyester container of claims 2, 3 and 4, the mechanical strength of the spout is further improved.

【図面の簡単な説明】[Brief description of drawings]

【図１】ポリエステル容器の口栓部近傍の正面図であ
る。FIG. 1 is a front view of the vicinity of a spigot portion of a polyester container.

【図２】本発明のポリエステル容器の一実施例を示す口
栓部近傍の縦断面図である。FIG. 2 is a vertical cross-sectional view showing the vicinity of a spigot portion showing an embodiment of the polyester container of the present invention.

【図３】本発明のポリエステル容器の一実施例を示す口
栓部近傍の縦断面図である。FIG. 3 is a vertical cross-sectional view showing the vicinity of a spigot portion showing an embodiment of the polyester container of the present invention.

【図４】本発明のポリエステル容器の一実施例を示す口
栓部近傍の縦断面図である。FIG. 4 is a vertical cross-sectional view of the vicinity of a spigot part showing an embodiment of the polyester container of the present invention.

【図５】本発明のポリエステル容器の一実施例を示す口
栓部近傍の縦断面図である。FIG. 5 is a vertical cross-sectional view of the vicinity of a spigot portion showing an embodiment of the polyester container of the present invention.

【図６】本発明のポリエステル容器の一実施例を示す口
栓部近傍の縦断面図である。FIG. 6 is a vertical cross-sectional view of the vicinity of a spigot portion showing an embodiment of the polyester container of the present invention.

【図７】本発明のポリエステル容器の一実施例を示す口
栓部近傍の縦断面図である。FIG. 7 is a vertical cross-sectional view of the vicinity of a spigot portion showing an embodiment of the polyester container of the present invention.

【図８】本発明のポリエステル容器の一実施例を示す口
栓部近傍の縦断面図である。FIG. 8 is a vertical cross-sectional view showing the vicinity of a spigot portion showing an embodiment of the polyester container of the present invention.

【図９】本発明のポリエステル容器の一実施例を示す口
栓部近傍の縦断面図である。FIG. 9 is a vertical cross-sectional view showing the vicinity of a spigot portion showing an embodiment of the polyester container of the present invention.

【図１０】本発明のポリエステル容器の一実施例を示す
口栓部近傍の縦断面図である。FIG. 10 is a vertical cross-sectional view showing the vicinity of a spigot portion showing an embodiment of the polyester container of the present invention.

【図１１】従来のポリエステル容器を示す口栓部近傍の
縦断面図である。FIG. 11 is a vertical cross-sectional view showing a conventional polyester container in the vicinity of a spigot portion.

【図１２】従来のポリエステル容器を示す口栓部近傍の
縦断面図である。FIG. 12 is a vertical sectional view showing a conventional polyester container in the vicinity of a spigot portion.

【図１３】従来のポリエステル容器を示す口栓部近傍の
縦断面図である。FIG. 13 is a vertical cross-sectional view showing a conventional polyester container in the vicinity of a spigot portion.

【符号の説明】[Explanation of symbols]

１ 容器本体部 ２ 口栓部 ３ サポートリング ４ ねじ ５ 段差部 ６ 耐熱性樹脂 ７ ポリエステル樹脂 １０ ポリエステル容器 1 Container Main Body 2 Port Plug 3 Support Ring 4 Screw 5 Step 6 Heat Resistant Resin 7 Polyester Resin 10 Polyester Container

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 大径筒状であると共に上部が窄まってい
る容器本体部と、該容器本体部の該上部に連なっている
小径筒状の口栓部とを有し、該容器本体部と該口栓部と
の境界付近には外向き鍔状のサポートリングが周設され
ている容器であって、 該容器本体部は、ポリエチレンテレフタレート樹脂を主
体とするポリエステル樹脂製であり、前記口栓部は、少
なくとも外周面部分が該ポリエステル樹脂よりも耐熱性
の高い耐熱性樹脂製であるポリエステル容器において、 前記容器本体部の上部に、該容器本体部と同材質の樹脂
よりなる第１のフランジ部が設けられ、 前記口栓部の下部に、前記耐熱性樹脂と同材質の樹脂よ
りなる第２のフランジ部が設けられ、 該第１のフランジ部と第２のフランジ部とが重なり合っ
て結合されることによって前記サポートリングが構成さ
れていることを特徴とするポリエステル容器。1. A container main body having a large-diameter cylindrical main body whose upper part is narrowed and a small-diameter cylindrical spigot connected to the upper part of the container main body. A container in which an outward flange-shaped support ring is provided in the vicinity of the boundary between the container and the mouth plug part, wherein the container body is made of a polyester resin containing polyethylene terephthalate resin as a main component. The plug portion is a polyester container in which at least an outer peripheral surface portion is made of a heat-resistant resin having higher heat resistance than the polyester resin, wherein a first resin made of the same material as the container body is provided on the container body. A flange portion is provided, and a second flange portion made of a resin of the same material as the heat resistant resin is provided below the spout portion, and the first flange portion and the second flange portion are overlapped with each other. By being combined Polyester container whose serial support ring is characterized by being composed. 【請求項２】 請求項１のポリエステル容器において、
前記第１及び第２のフランジ部のうち一方のフランジ部
は他方のフランジ部よりも大径であり、この大径のフラ
ンジ部の外周縁部が小径のフランジ部の外周端面に被さ
っていることを特徴とするポリエステル容器。2. The polyester container according to claim 1, wherein
One of the first and second flange portions has a larger diameter than the other flange portion, and the outer peripheral edge portion of the large diameter flange portion covers the outer peripheral end surface of the small diameter flange portion. A polyester container characterized by. 【請求項３】 請求項２のポリエステル容器において、
前記大径のフランジ部は、前記小径のフランジ部の外周
端縁を回り込み、重なり合ったフランジ面と反対側のフ
ランジ面を被覆する被覆部を有していることを特徴とす
るポリエステル容器。3. The polyester container according to claim 2, wherein
The polyester container characterized in that the large-diameter flange portion has a covering portion that wraps around the outer peripheral edge of the small-diameter flange portion and covers the overlapping flange surface and the opposite flange surface. 【請求項４】 請求項１ないし３のいずれか１項のポリ
エステル容器において、前記口栓部の外周面側が前記耐
熱性樹脂製であり、該口栓部の内周面側が前記容器本体
部と同材質のポリエステル樹脂製であって、且つこの内
周面側のポリエステル樹脂が前記容器本体部のポリエス
テル樹脂に連なっていることを特徴とするポリエステル
容器。4. The polyester container according to any one of claims 1 to 3, wherein the outer peripheral surface side of the plug portion is made of the heat resistant resin, and the inner peripheral surface side of the plug portion is the container main body portion. A polyester container made of the same material as the polyester resin, wherein the polyester resin on the inner peripheral surface side is continuous with the polyester resin of the container body.
JP33846691A 1991-12-20 1991-12-20 Polyester container Pending JPH05170241A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33846691A JPH05170241A (en) 1991-12-20 1991-12-20 Polyester container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33846691A JPH05170241A (en) 1991-12-20 1991-12-20 Polyester container

Publications (1)

Publication Number Publication Date
JPH05170241A true JPH05170241A (en) 1993-07-09

Family

ID=18318433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33846691A Pending JPH05170241A (en) 1991-12-20 1991-12-20 Polyester container

Country Status (1)

Country Link
JP (1) JPH05170241A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005085078A1 (en) * 2004-02-27 2005-09-15 Graham Packaging Pet Technologies Inc. Plastic container with handle and method of making
EP1577081A2 (en) * 2004-03-18 2005-09-21 Schütz GmbH & Co. KGaA Process for making synthetic containers for liquids
IT202100025718A1 (en) * 2021-10-07 2023-04-07 Labrenta S R L BOTTLE MOUTH AND ITS CAP

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005085078A1 (en) * 2004-02-27 2005-09-15 Graham Packaging Pet Technologies Inc. Plastic container with handle and method of making
EP1577081A2 (en) * 2004-03-18 2005-09-21 Schütz GmbH & Co. KGaA Process for making synthetic containers for liquids
EP1577081A3 (en) * 2004-03-18 2007-04-18 Schütz GmbH & Co. KGaA Process for making synthetic containers for liquids
IT202100025718A1 (en) * 2021-10-07 2023-04-07 Labrenta S R L BOTTLE MOUTH AND ITS CAP

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