JPS59230022A - Biaxially oriented polyester hollow molded article - Google Patents
Biaxially oriented polyester hollow molded articleInfo
- Publication number
- JPS59230022A JPS59230022A JP10494483A JP10494483A JPS59230022A JP S59230022 A JPS59230022 A JP S59230022A JP 10494483 A JP10494483 A JP 10494483A JP 10494483 A JP10494483 A JP 10494483A JP S59230022 A JPS59230022 A JP S59230022A
- Authority
- JP
- Japan
- Prior art keywords
- hollow molded
- polyester
- molded article
- mol
- component
- 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
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は厚さむらの少ないポリエステル二軸延伸中空成
形体に関する。更に詳しくはテレフタル酸を含む分岐ポ
リエステルからなる二軸延伸中空成形体に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a biaxially stretched polyester hollow molded article with little thickness unevenness. More specifically, the present invention relates to a biaxially stretched hollow molded body made of a branched polyester containing terephthalic acid.
ポリエチレンテレフタレート樹脂（以下％ＰＥＴと呼ぶ
場合がある）の二軸延伸成形品は、機械的強度、剛性、
耐熱性、耐薬品性、耐油性、軽量性、透明性等の優れた
性質を活かして、フィルム、シートあるいは容器等の包
装材料として広く用いられている。Biaxially stretched polyethylene terephthalate resin (hereinafter sometimes referred to as %PET) molded products have mechanical strength, rigidity,
Due to its excellent properties such as heat resistance, chemical resistance, oil resistance, light weight, and transparency, it is widely used as a packaging material for films, sheets, containers, etc.
しかしながらＰＥＴを主体とした二軸延伸中空成形体に
も欠点がないわけではなく、例えば充分な熱固定ができ
ないこと、耐ガス透過性が充分でないこと、あるいは底
部に比べ胴部の厚さがかなり薄くなること等の欠点を有
している。中でも厚さむらと耐ガス透過性の不充分さは
、ＰＥＴ本来の材質に基因するものであり、成形加工に
より解決することは困難であった。However, biaxially stretched hollow molded products made mainly of PET are not without their drawbacks, such as the inability to heat-set them sufficiently, the gas permeability resistance being insufficient, or the body being considerably thicker than the bottom. It has drawbacks such as being thin. Among these, the uneven thickness and insufficient gas permeability are caused by the original material of PET, and it has been difficult to solve them by molding.
ＰＥＴの二輪延伸中空成形体の耐ガス透過性あるいは機
械的強度等は通常最も厚さが薄い胴部の厚さに依存する
ので、耐ガス透過性や機械的強度を改善するために胴部
の厚さを増す、すなわちより厚い予備中空成形体を用い
ることになり、結果として得られる二軸延伸中空成形体
の重量（目付）が重くなり、ポリエステル樹脂本来の特
徴である軽量性が損われる虞れがあった。そのことは、
ガス透過性を改良するために、共重合に用いるテレフタ
ル酸の一部をインフタル酸に代えた共重合ポリエステル
樹脂において、特に胴部の厚さが薄くなる傾向が大きく
、耐ガス透過性と目付のバランスがとれた二軸延伸中空
成形体が得難かった。The gas permeability or mechanical strength of a PET two-wheel stretched hollow molded product usually depends on the thickness of the body, which is the thinnest part, so in order to improve the gas permeability and mechanical strength, Increasing the thickness, that is, using a thicker pre-hollow molded body, increases the weight (fabric weight) of the resulting biaxially oriented hollow molded body, which may impair the lightness that is the original characteristic of polyester resin. There was that. The thing is,
In order to improve gas permeability, in copolymerized polyester resins in which part of the terephthalic acid used in the copolymerization is replaced with inphthalic acid, there is a strong tendency for the thickness of the body to become thinner, resulting in a decrease in gas permeability and basis weight. It was difficult to obtain a well-balanced biaxially stretched hollow molded body.
一方、ポリエステルの製造方法において、トリメチロー
ルプロパン、ペンタエリスリトール等の多官能性ヒドロ
キシ化合物を共重合させて分岐ポリエステルを製造し、
該ポリエステルを押出中空成形に用いることは、例えば
特開昭５５−９４５９６号公報、特開昭５４−１３７０
９５号公報、特開昭５５−９２７３０号公報等に記載さ
れている。しかしながらこれらの技術はポリエステルを
溶融押出し、次いで゛未だ溶融状態（融点以上）にある
パリソンを金型で挾み、該パリソン内に加圧ガスを吹込
んで金型内面に密着させて中空容器となす、所謂中空成
形に関するものであり、得られた容器は全く延伸も配向
もなされておらず、二軸延伸中空成形方法、すなわち射
出成形あるいは押出成形により成形された予備中空成形
体を融点未満の温度で縦及び横方向に延伸して中空成形
体を製造することに関しては全く開示されていないので
ある。On the other hand, in a method for producing polyester, a branched polyester is produced by copolymerizing a polyfunctional hydroxy compound such as trimethylolpropane or pentaerythritol,
The use of the polyester in extrusion blow molding is described, for example, in JP-A-55-94596 and JP-A-54-1370.
This method is described in Japanese Patent Application Laid-open No. 95-92730 and others. However, these techniques involve melt-extruding polyester, then sandwiching the parison, which is still in a molten state (above the melting point), between molds, and blowing pressurized gas into the parison to make it adhere tightly to the inner surface of the mold to form a hollow container. , which relates to so-called blow molding, in which the resulting container is not stretched or oriented at all, and the preliminary blow molded body formed by the biaxially stretched blow molding method, that is, injection molding or extrusion molding, is heated to a temperature below the melting point. There is no disclosure at all about producing a hollow molded body by stretching in the longitudinal and transverse directions.
本発明者は、かかる状況に鑑み、厚さむらの少ないポリ
エステルニ軸延伸中空成形体を得るべく種々検討した結
果、テレフタル酸、イソフタル酸及びエチレングリコー
ルとからなるポリエステルに少なくとも３つのヒドロキ
シ基を有する多官能性ヒドロキシ化合物を特定量共重合
させた分岐ポリエステルを用いると、厚さむらの少ない
ポリエステルニ軸延伸中空成形体が得られることが分か
り、本発明を完成するに至った。In view of this situation, the present inventor conducted various studies in order to obtain a polyester biaxially stretched hollow molded product with less unevenness in thickness. It was found that by using a branched polyester copolymerized with a specific amount of a polyfunctional hydroxy compound, a biaxially stretched polyester hollow molded article with less uneven thickness could be obtained, and the present invention was completed.
すなわち本発明は、ボ１へエステルニ軸延伸中空成形体
において、該ポリエステルが、ジカルボン酸成分単位に
対してテレフタル酸：８０ないし９５モル％とイソフタ
ル酸：２０ないし５モル％とからなるジカルボン酸成分
（Ａ）、エチレングリコールを主成分とするグリコール
成分（Ｂ）、及びジカルボン酸成分（〜単位１００モル
部に対して少なくとも６つのヒドロキシ基を有する多官
能ヒドロキシ化合物（Ｃ） ： ０−０５ないし１６０
モル部とから構成される分岐ポリエステルであることを
特徴とする厚さむらの少ないポリエステルニ軸延伸中空
成形体を提供するものである。That is, the present invention provides a biaxially stretched hollow molded article in which the polyester contains a dicarboxylic acid component consisting of 80 to 95 mol% of terephthalic acid and 20 to 5 mol% of isophthalic acid based on the dicarboxylic acid component unit. (A), a glycol component (B) whose main component is ethylene glycol, and a dicarboxylic acid component (a polyfunctional hydroxy compound (C) having at least 6 hydroxy groups per 100 mole parts of units): 0-05 to 160
The object of the present invention is to provide a polyester biaxially stretched hollow molded article with little thickness unevenness, which is characterized by being a branched polyester composed of molar parts.
本発明に用いる分岐ポリエステルを構成するジカルボン
酸成分（〜は、ジカルボン酸成分単位に対して、テレフ
タル酸：８０ないし９５モル％、好ましくは８５ないし
９０モル％とインフタル酸：２０ないし５モル％、好ま
しくは１５ないし１０モル％とからなる。イソフタル酸
が２０モル％を越えると非品性樹脂となり二軸延伸中空
成形が不可能となる、また５モル％未満では、耐ガス透
過性に優れた二軸延伸中空成形体は得られない。また前
記ジカルボン酸成分（埒は、本発明の目的を損わない範
囲で、少量の他のジカルボン酸成分、具体的には、例え
ばジフェニルエーテル−４，４′−ジカルボン酸−ナフ
タリン−１，４または２，６−ジカルボン酸等の芳香族
ジカルボン酸、シュウ酸、コハク酸、アジピン酸、セバ
シン酸、ウンデカシカルどン酸等の脂肪族ジカルボン酸
、ヘキサヒドロテレフタル酸等の脂環族ジカルボン酸等
を含んでいてもよい。The dicarboxylic acid components constituting the branched polyester used in the present invention (~ are terephthalic acid: 80 to 95 mol%, preferably 85 to 90 mol%, and inphthalic acid: 20 to 5 mol%, based on the dicarboxylic acid component unit) Preferably, the content is from 15 to 10 mol%.If the content of isophthalic acid exceeds 20 mol%, the resin becomes a poor quality and cannot be biaxially stretched and blow-molded.If it is less than 5 mol%, the resin has excellent gas permeation resistance. A biaxially oriented hollow molded body cannot be obtained.Also, the dicarboxylic acid component (the dicarboxylic acid component) may include a small amount of other dicarboxylic acid components, specifically, for example, diphenyl ether-4,4 '-Dicarboxylic acid - Aromatic dicarboxylic acids such as naphthalene-1,4 or 2,6-dicarboxylic acid, aliphatic dicarboxylic acids such as oxalic acid, succinic acid, adipic acid, sebacic acid, undecacical acid, hexahydroterephthal It may contain alicyclic dicarboxylic acids such as acids.
本発明に用いる分岐ポリエステルを構成するグリコール
成分（Ｂ）は、エチレングリコールを主成分、通常全グ
リコール成分単位に対して８０ないし１００モル％、好
ましくは９０ないし１００モル％とするものである。残
余のグリコール成分としては、プロピレングリコール、
１，４−ブタンジオール、ジエチレングリコール等の直
鎖状脂肪族グリコール、あるいはビス・フェノールＡ等
の芳香族ジヒドロキシ化合物等が挙げられるが、ネオペ
ンチルグリコール等の分岐状脂肪族グリコールあるいは
シクロヘキサンジメタツール等の脂環族グリコールは耐
ガス透過性を低下させるので好ましくない。The glycol component (B) constituting the branched polyester used in the present invention is mainly composed of ethylene glycol, usually in an amount of 80 to 100 mol%, preferably 90 to 100 mol%, based on the total glycol component units. The remaining glycol components include propylene glycol,
Examples include linear aliphatic glycols such as 1,4-butanediol and diethylene glycol, and aromatic dihydroxy compounds such as bisphenol A, but branched aliphatic glycols such as neopentyl glycol, cyclohexane dimetatool, etc. Alicyclic glycols are not preferred because they reduce gas permeability.
本発明に用いる分岐ポリエステルを構成する多官能ヒド
ロキシ化合物（Ｃ）は、少なくとも６つのヒドロキシ基
を有する化合物であり、具体的には、例えばトリメチロ
ールエタン、トリメチロールプロパン、トリメチロール
ヘキサン、グリセリン、ソルビトール、１，２１６−ヘ
キサン上りオール、ペンタエリスリトール等が挙げられ
る。これらの中ではトリメチロールプロパン及びグリセ
リンが好ましい。該多官能ヒドロキシ化合物（Ｃ）の分
岐ポリエステルに占める量は、ジカルボン酸成分（Ａ）
単位１００モル部に対して０．０５ないし１．０モル部
、好ましくは０．１ないし０．５モル部の範囲である。The polyfunctional hydroxy compound (C) constituting the branched polyester used in the present invention is a compound having at least six hydroxy groups, and specifically, for example, trimethylolethane, trimethylolpropane, trimethylolhexane, glycerin, sorbitol. , 1,216-hexane alcohol, pentaerythritol, and the like. Among these, trimethylolpropane and glycerin are preferred. The amount of the polyfunctional hydroxy compound (C) in the branched polyester is the dicarboxylic acid component (A).
The amount is in the range of 0.05 to 1.0 mol part, preferably 0.1 to 0.5 mol part, per 100 mol parts of units.
０．０５モル部未満では、厚さむらの改良効果が少なく
、１．０モル部を越えるとポリエステルがゲル化して、
溶解しなくなり、二軸延伸中空成形する前の予備中空成
形体の成形ができなくなったり、中空成形体の収縮が著
しく大きくなるので好ましくない。If it is less than 0.05 mole part, the effect of improving thickness unevenness will be small, and if it exceeds 1.0 mole part, the polyester will gel.
This is undesirable because it becomes insoluble, making it impossible to form a preliminary hollow molded body before biaxially stretched blow molding, and shrinkage of the hollow molded body significantly increases.
本発明に用いる分岐ポリエステルは通常フェノール／テ
トラクロルエタン−１７１重量比溶媒中、２５°Ｃで測
定した極限粘度〔η〕が０．６ないし１．５ｄ（１／
ｇ％好ましくは０．８ないし＋、２ａｎ／ｇの範囲であ
る。The branched polyester used in the present invention usually has an intrinsic viscosity [η] of 0.6 to 1.5 d (1/
The g% is preferably in the range of 0.8 to +2 an/g.
本発明に用いる分岐ポリエステルは、ポリエチレンテレ
フタレートの製造に使用されている従来から公知の重縮
合の方法に準じて製造することができる。The branched polyester used in the present invention can be produced according to the conventionally known polycondensation method used for producing polyethylene terephthalate.
本発明に用いる分岐ポリエステルには、本発明の目的を
損わない範囲で耐熱安定剤、耐候安定剤、滑剤、核剤、
顔料、染料、無機あるいは有機充填剤を添加しておいて
もよい。The branched polyester used in the present invention includes heat stabilizers, weather stabilizers, lubricants, nucleating agents,
Pigments, dyes, inorganic or organic fillers may also be added.
本発明のポリエステル二軸延伸中空成形体は前記分岐ポ
リエステルからなる。該中空成形体は、通常縦方向に２
ないし６倍、好ましくは２・６ないし２．８倍、横方向
に３ないし５倍、好ましくは６．５ないし４．５倍に延
伸されてなる。また厚さは用途に応じて種々決定される
べきであるが、通常中空体胴部で２００ないし８００μ
、好ましくは４００ないし６００μの範囲内にあるのが
実用的である。また延伸の際に胴部密度が１．３５ ｇ
／ｃＷＩ′以上になるように延伸すると、剛性に優れた
中空成形体となるので好ましい。The polyester biaxially stretched hollow molded article of the present invention is made of the branched polyester described above. The hollow molded body usually has two parts in the longitudinal direction.
It is stretched by 6 to 6 times, preferably 2.6 to 2.8 times, and 3 to 5 times in the transverse direction, preferably 6.5 to 4.5 times. The thickness should be determined depending on the application, but it is usually 200 to 800 μm for a hollow body.
, preferably within the range of 400 to 600μ. Also, during stretching, the body density is 1.35 g.
/cWI' or more is preferable because it results in a hollow molded body with excellent rigidity.
本発明のポリエステル二軸延伸中空成形体は、従来のＰ
ＩＥＴの二軸延伸中空成形方法に準じて製造することが
できる。すなわち、通常の射出成形機により成形された
予備中空成形体（パリソン）あるいは押出成形機により
成形されたパイプの一端を有底化して得られたパリソン
を分岐ポリエステルの延伸温度である１１０ないし１５
０°Ｃ（分岐ポリエステルの融点は約２６０ないし２５
５°Ｃ）で中空成形金型内で軸方向に移動するロッドと
、加圧気体の吹込み圧力により、縦方向に１．５ないし
２．５倍及び横方向に２ないし５倍に延伸する方法が例
示できる。また成形方法としてはコールドパリソンによ
る２ステ一ジ方式、或いはホットパリソン方式のいずれ
でもよいが、コールドパリソンによる方法が延伸温度を
より正確に制御することができるので好ましい。The polyester biaxially stretched hollow molded article of the present invention is different from conventional P
It can be manufactured according to IET's biaxial stretching blow molding method. That is, a pre-hollow molded body (parison) molded by a normal injection molding machine or a parison obtained by bottoming one end of a pipe molded by an extrusion molding machine is stretched at a temperature of 110 to 15, which is the stretching temperature of branched polyester.
0°C (The melting point of branched polyester is approximately 260 to 25
Stretched by 1.5 to 2.5 times in the longitudinal direction and 2 to 5 times in the transverse direction by a rod moving axially in a blow mold at 5°C) and blowing pressure of pressurized gas. The method can be exemplified. The molding method may be either a two-stage method using a cold parison or a hot parison method, but the method using a cold parison is preferred because the stretching temperature can be controlled more accurately.
本発明のポリエステル二軸延伸中空成形体は、前記分岐
ポリエステルから構成されるが、再に耐ガス透過性、印
刷性、紫外線カットを改良する目的で、ポリ塩化ビニリ
デン、エチレン・酢酸ビニル共重合体鹸化物等を積層し
てもよい。The polyester biaxially stretched hollow molded article of the present invention is composed of the branched polyester described above, but in order to improve gas permeability, printability, and UV protection, polyvinylidene chloride and ethylene/vinyl acetate copolymer are also added. A saponified material or the like may be laminated.
本発明のポリエステル二軸延伸中空成形体は、従来のポ
リエチレンテレフタレートからなる直鎖ポリエステルか
らなる成形体に比べ、厚さむらが少ないので、更に軽量
化が計れ、とくにイソフタレートを共重合させた分岐ポ
リエステルは軽量で衝撃性が良好で且つ耐ガス透過性に
優れているので、ビール容器、炭酸飲料容器等に特に好
適である。The polyester biaxially stretched hollow molded product of the present invention has less unevenness in thickness compared to conventional molded products made of linear polyester made of polyethylene terephthalate, so it can be further reduced in weight. Polyester is lightweight, has good impact resistance, and has excellent gas permeation resistance, so it is particularly suitable for beer containers, carbonated beverage containers, and the like.
次に実施例を挙げて本発明を更に具体的に説明する。Next, the present invention will be explained in more detail with reference to Examples.
実施例１
テレフタル酸（以下、ＴＡと略す）：９０モル％、イソ
フタル酸（以下、ＩＡと略す）：１０モル％、エチレン
グリコール（以下、ＥＧと略す）：１００モル％及びグ
リセリン（以下、Ｇｃと略す）＝０．６モル部の割合で
共重合されてなる〔η〕：１．０５ ｄｌ／ｇの分岐ポ
リエステルを１５０℃の温度で４時間乾燥し、胴部肉厚
’：４ｍｍ、重量＝４５ｇのプリフォームを射出成形機
（名機製作所製：ダイナメルタＭ１００ＤＭ）を用いて
成形し、ｐＥ’１’延伸ブロー成形機（コーホプラスト
社製）により、前記プリフォームを１２０〜１６０°Ｃ
に加熱し、縦方向に２．５倍、横方向に４倍に延伸し、
１１の二軸延伸中空成形製を得た。次いで得られた成形
製にドライアイスを２６°Ｃで内圧５ ｋＬｊ／１Ｍ２
になるように封入後、該成形製を２３°Ｃで放置し、経
時の重量変化より、ＣＯ２透過係数を算出したところ、
Ｏ−６５ｃｃ／ ｄａｙ−ａｔｍであった。Example 1 Terephthalic acid (hereinafter abbreviated as TA): 90 mol%, isophthalic acid (hereinafter abbreviated as IA): 10 mol%, ethylene glycol (hereinafter abbreviated as EG): 100 mol%, and glycerin (hereinafter abbreviated as Gc A branched polyester copolymerized at a ratio of 0.6 mole part [η]: 1.05 dl/g was dried at a temperature of 150°C for 4 hours, body wall thickness': 4 mm, weight = 45 g of preform was molded using an injection molding machine (manufactured by Meiki Manufacturing Co., Ltd.: Dynamelta M100DM), and the preform was heated at 120 to 160°C using a pE'1' stretch blow molding machine (manufactured by Kohoplast Co., Ltd.).
, stretched 2.5 times in the vertical direction and 4 times in the horizontal direction,
No. 11 biaxially stretched blow molded product was obtained. Next, dry ice was added to the resulting molded product at 26°C with an internal pressure of 5 kLj/1M2.
After enclosing the molded product so that
It was O-65cc/day-atm.
実施例２．６
実施例１で用いた分岐ポリエステルの代わりにＧＣをト
リメチロールプロパン（以下ＴＭＰと略す）に代えた分
岐ポリエステル（〔η） ： ＬＯ７ａｌ／ｇ）、及び
ＧＯの量を０６２モル１とした分岐ポリエステル（〔９
９８１，０４６１７ｇ）を用いる以外は実施例１と同様
に行った。結果を第１表に示す。Example 2.6 A branched polyester ([η): LO7al/g) in which GC was replaced with trimethylolpropane (hereinafter abbreviated as TMP) in place of the branched polyester used in Example 1, and the amount of GO was 062mol1 branched polyester ([9
The same procedure as in Example 1 was carried out except that 981,04617 g) was used. The results are shown in Table 1.
比較例１〜４
ＴＡ、、ＩＡ及びＧＣを第１表の如く代えたポリエステ
ルを用いる以外は実施例１と同様に行った。Comparative Examples 1 to 4 Comparative Examples 1 to 4 were conducted in the same manner as in Example 1 except that polyesters were used in which TA, IA, and GC were changed as shown in Table 1.
結果を第１表に示す。尚各々の〔η〕は、比較例１：
ｌ−０１ａｌ／ｇ ％比較例２ ： ＬＯ４ｄＡ’／ｇ
、比較例３：１−０７ｉ／ｇ及び比較例４ ： １．０
９ｄｌ／ｇであった。The results are shown in Table 1. In addition, each [η] is Comparative Example 1:
l-01al/g% Comparative example 2: LO4dA'/g
, Comparative Example 3: 1-07i/g and Comparative Example 4: 1.0
It was 9 dl/g.
比較例５
実施例１で用いた分岐ポリエステルを用いて、通常の中
空成形方法、すなわち４０ｍｍφ押出機より溶融状態の
ｉ、６ｍｍ厚の円形パリソンを押出し、次いで金型で型
締し、吹込み成形することにより、無延伸の１４中空成
形瓶を得た。該成形製の評価結果を第１表に示す。Comparative Example 5 Using the branched polyester used in Example 1, a circular parison with a thickness of 6 mm was extruded in a molten state from a 40 mmφ extruder using the usual blow molding method, then the mold was clamped with a mold, and blow molding was performed. By doing so, 14 non-stretched blow molded bottles were obtained. Table 1 shows the evaluation results for the molded products.
比較例６．７Comparative example 6.7
Claims (1)
“リエステルが、ジカルボン酸成分単位に対してテレフ
タル酸：８０ないし９５モル％とイソフタル酸＝２０な
いし５モル％とからなるジカルボン酸成分（Ａ）、エチ
レングリコールを主成分とするグリコール成分（Ｂ）、
及びジカルボン酸成分（Ａ）単位１００モル部に対して
少なくとも３つのヒドロキシ基を有する多官能ヒドロキ
シ化合物（ｃ） ： ０．０５ないし１．０モル部とか
ら構成される分岐ポリエステルであることを特徴とする
ポリエステル二軸延伸中空成形体。(1) In a polyester biaxially stretched hollow molded article, the polyester contains a dicarboxylic acid component (A ), glycol component (B) whose main component is ethylene glycol,
and a branched polyester comprising 0.05 to 1.0 mole parts of a polyfunctional hydroxy compound (c) having at least three hydroxy groups per 100 mole parts of dicarboxylic acid component (A) units. A polyester biaxially stretched hollow molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10494483A JPS59230022A (en) | 1983-06-14 | 1983-06-14 | Biaxially oriented polyester hollow molded article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10494483A JPS59230022A (en) | 1983-06-14 | 1983-06-14 | Biaxially oriented polyester hollow molded article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59230022A true JPS59230022A (en) | 1984-12-24 |
| JPH0331126B2 JPH0331126B2 (en) | 1991-05-02 |
Family
ID=14394194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10494483A Granted JPS59230022A (en) | 1983-06-14 | 1983-06-14 | Biaxially oriented polyester hollow molded article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59230022A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995018171A1 (en) * | 1993-12-24 | 1995-07-06 | Bhp Steel (Jla) Pty. Ltd. | Thermosetting polyester resin |
| KR20010084816A (en) * | 2000-02-29 | 2001-09-06 | 양갑석 | Low crystalline PET resin manufacturing method for large packaging and big bottle |
| WO2002079310A3 (en) * | 2001-03-28 | 2002-12-19 | Ciba Sc Holding Ag | Process for preparing a stabilized polyester |
| WO2006069150A1 (en) * | 2004-12-21 | 2006-06-29 | E.I. Du Pont De Nemours And Company | Poly(trimethylene terephthalate) composition and shaped articles prepared therefrom |
| EP2270065A3 (en) * | 2004-12-21 | 2011-03-09 | E. I. du Pont de Nemours and Company | Poly(trimethylene terephthalate) composition and shaped articles prepared therefrom |
| CN104448264A (en) * | 2014-11-10 | 2015-03-25 | 浙江恒逸高新材料有限公司 | High-shrinkage hydrophilic polyester chip as well as preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535261A (en) * | 1976-07-06 | 1978-01-18 | Toray Industries | Oriented hollow transparent molded article |
| JPS5374570A (en) * | 1976-12-14 | 1978-07-03 | Teijin Ltd | Production of polyester container |
| JPS59129227A (en) * | 1983-01-14 | 1984-07-25 | Kuraray Co Ltd | Heat-resistant biaxially orientated hollow container and its production |
-
1983
- 1983-06-14 JP JP10494483A patent/JPS59230022A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535261A (en) * | 1976-07-06 | 1978-01-18 | Toray Industries | Oriented hollow transparent molded article |
| JPS5374570A (en) * | 1976-12-14 | 1978-07-03 | Teijin Ltd | Production of polyester container |
| JPS59129227A (en) * | 1983-01-14 | 1984-07-25 | Kuraray Co Ltd | Heat-resistant biaxially orientated hollow container and its production |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995018171A1 (en) * | 1993-12-24 | 1995-07-06 | Bhp Steel (Jla) Pty. Ltd. | Thermosetting polyester resin |
| US5620801A (en) * | 1993-12-24 | 1997-04-15 | Bhp Steel (Jla) Pty. Ltd. | Thermosetting polyester resin |
| CN1061057C (en) * | 1993-12-24 | 2001-01-24 | Bhp钢铁(Jla)有限公司 | Thermosetting polyester resin |
| KR20010084816A (en) * | 2000-02-29 | 2001-09-06 | 양갑석 | Low crystalline PET resin manufacturing method for large packaging and big bottle |
| WO2002079310A3 (en) * | 2001-03-28 | 2002-12-19 | Ciba Sc Holding Ag | Process for preparing a stabilized polyester |
| JP2004523637A (en) * | 2001-03-28 | 2004-08-05 | チバ スペシャルティ ケミカルズ ホールディング インコーポレーテッド | Method for preparing stabilized polyester |
| WO2006069150A1 (en) * | 2004-12-21 | 2006-06-29 | E.I. Du Pont De Nemours And Company | Poly(trimethylene terephthalate) composition and shaped articles prepared therefrom |
| US7396896B2 (en) | 2004-12-21 | 2008-07-08 | E.I. Dupont De Nemours And Company | Poly(trimethylene terephthalate) composition and shaped articles prepared therefrom |
| EP2270065A3 (en) * | 2004-12-21 | 2011-03-09 | E. I. du Pont de Nemours and Company | Poly(trimethylene terephthalate) composition and shaped articles prepared therefrom |
| CN104448264A (en) * | 2014-11-10 | 2015-03-25 | 浙江恒逸高新材料有限公司 | High-shrinkage hydrophilic polyester chip as well as preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0331126B2 (en) | 1991-05-02 |
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