JP3203260B2 - Polyester sheet - Google Patents
Polyester sheetInfo
- Publication number
- JP3203260B2 JP3203260B2 JP26514791A JP26514791A JP3203260B2 JP 3203260 B2 JP3203260 B2 JP 3203260B2 JP 26514791 A JP26514791 A JP 26514791A JP 26514791 A JP26514791 A JP 26514791A JP 3203260 B2 JP3203260 B2 JP 3203260B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- polyester
- particles
- stretching
- transparency
- 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.)
- Expired - Lifetime
Links
Landscapes
- Cartons (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、シートを折り曲げ加工
して形成される透明ケースなどに使用される透明硬質ポ
リエステルシートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent rigid polyester sheet used for a transparent case formed by bending a sheet.
【０００２】[0002]
【従来の技術とその課題】無延伸の非晶質ポリエステル
シートは透明性に優れており、折り曲げ加工して化粧品
などのケースとする用途などが期待される。ところが、
ケースに加工する時などに枚葉シートで印刷機に供給す
る必要があるが、シートの滑りが悪く印刷機に供給トラ
ブルが発生するなどの問題がある。また、組み立て後の
ケース同士の滑りが悪くケース表面に傷が入りやすいと
いう問題もある。2. Description of the Related Art Unstretched amorphous polyester sheets are excellent in transparency, and are expected to be used as cases for cosmetics by bending. However,
When it is necessary to supply a printing sheet as a single sheet when processing it into a case, there is a problem that sheet slippage is poor and a supply trouble occurs in the printing press. In addition, there is also a problem that the cases after assembling are not easily slipped and the surface of the case is easily damaged.
【０００３】これらの問題点を改良するため、シートに
無機質微粒子を添加して滑り性を改良する方法が考えら
れるが、単に添加しただけでは滑り性改良効果が少ない
し、添加量を多くするとシートの透明性が低下する。ま
たシリコン系化合物などをシートに塗布する方法もある
が、印刷インクが密着しなかったり、ケースの組み立て
時の貼り合せができなくなる。また滑り剤をシート表面
に散布する方法もあるが、滑り剤が包装内容物に付着し
たりして好ましくない。In order to improve these problems, a method of improving the slipperiness by adding inorganic fine particles to the sheet can be considered. Of the polymer is reduced. There is also a method of applying a silicon-based compound or the like to the sheet. However, the printing ink does not adhere to the sheet or cannot be bonded at the time of assembling the case. There is also a method of spraying a slip agent on the sheet surface, but it is not preferable because the slip agent adheres to the package contents.
【０００４】[0004]
【課題を解決するための手段】本発明はポリエステル樹
脂に粒子を添加した無延伸シートに低倍率の延伸処理を
施すことにより、透明性、二次加工性を損なうことなく
滑り性を改良したものであって、その要旨は、ポリエス
テル樹脂１００重量部に対して、平均粒子径２０μｍ以
下の粒子を０．０１〜５重量部添加した実質上無配向の
シートを少なくとも１方向について１．０５〜２倍延伸
したポリエステルシートを所定形状に打ち抜き、折り曲
げ用の罫線を形成してなるシートである。According to the present invention, a non-stretched sheet in which particles are added to a polyester resin is subjected to a low-magnification stretching treatment to improve the slipperiness without impairing the transparency and the secondary workability. The gist of the invention is that a substantially non-oriented sheet containing 0.01 to 5 parts by weight of particles having an average particle diameter of 20 μm or less added to 100 parts by weight of a polyester resin in at least one direction is 1.05 to 2 parts. This is a sheet formed by punching a double-stretched polyester sheet into a predetermined shape and forming ruled lines for bending.
【０００５】以下本発明を詳しく説明する。図１は本発
明シートの使用例を示す平面図であって、ポリエステル
シート１を所定形状に打ち抜き、折り曲げ用の罫線２を
形成してある。このシート１を罫線２から折り曲げて、
接着代３で貼り合わせてケースを形成する。Hereinafter, the present invention will be described in detail. FIG. 1 is a plan view showing an example of use of the sheet of the present invention, in which a polyester sheet 1 is punched into a predetermined shape, and a ruled line 2 for bending is formed. This sheet 1 is bent from the ruled line 2,
The case is formed by bonding with the bonding allowance 3.
【０００６】このシート１を構成するポリエステル樹脂
としては、ジカルボン酸成分がテレフタル酸、イソフタ
ル酸など公知のジカルボン酸の一種もしくは２種以上か
らなり、ジオール成分がエチレングリコール、ジエチレ
ングリコールなど公知のジオール成分の１種または２種
以上からなるポリエステル樹脂、またはこれらポリエス
テル樹脂の２種以上の混合物を用いることができる。As a polyester resin constituting the sheet 1, the dicarboxylic acid component is composed of one or more known dicarboxylic acids such as terephthalic acid and isophthalic acid, and the diol component is a known diol component such as ethylene glycol and diethylene glycol. One or more polyester resins or a mixture of two or more of these polyester resins can be used.
【０００７】具体的には、ポリエチレンテレフタレー
ト、ポリエチレンナフタレート、ポリブチレンテレフタ
レート、テレフタル酸と１，４−シクロヘキサンジメタ
ノールとからなるポリエステル、あるいはこれらのエス
テルに少量の共重合成分を含む共重合ポリエステルなど
が好適である。Specifically, polyethylene terephthalate, polyethylene naphthalate, polybutylene terephthalate, polyester comprising terephthalic acid and 1,4-cyclohexanedimethanol, or copolymerized polyester containing a small amount of a copolymer component in these esters, etc. Is preferred.
【０００８】共重合ポリエステルを用いる場合には、エ
チレンテレフタレート成分を主成分とし、共重合成分と
してイソフタル酸をジカルボン酸成分の３〜１５モル％
含有させ、必要に応じジオール成分としてジエチレング
リコール、ポリアルキレングリコール、または１，４−
シクロヘキサンジメタノールを含有させた共重合ポリエ
ステルが工業的に安価に得られて好ましい。When a copolymerized polyester is used, an ethylene terephthalate component is used as a main component, and isophthalic acid is used as a copolymer component in an amount of 3 to 15 mol% of the dicarboxylic acid component.
Diol component, if necessary, diethylene glycol, polyalkylene glycol, or 1,4-
Copolyester containing cyclohexanedimethanol is preferred because it can be obtained industrially at low cost.
【０００９】ポリエステル樹脂の極限粘度は０．５以上
であることが好ましく、０．５よりも低いとシートの衝
撃強度などが弱くなり好ましくない。The intrinsic viscosity of the polyester resin is preferably 0.5 or more, and if it is lower than 0.5, the impact strength of the sheet becomes weak, which is not preferable.
【００１０】ポリエステル樹脂に均一に分散させる平均
粒子径２０μｍ以下の粒子としては、例えば、シリカ、
酸化チタン、炭酸カルシウム、酸化鉄、酸化アルミニウ
ム、酸化カルシウム、酸化マグネシウムなどの無機粒子
またはこれらの混合物；タルク、クレーなどの無機化合
物；高融点有機化合物や架橋ポリマなどの有機化合物な
ど各種不活性粒子を用いることができる。As particles having an average particle diameter of 20 μm or less uniformly dispersed in a polyester resin, for example, silica,
Inorganic particles such as titanium oxide, calcium carbonate, iron oxide, aluminum oxide, calcium oxide, and magnesium oxide or mixtures thereof; inorganic compounds such as talc and clay; various inert particles such as organic compounds such as high-melting organic compounds and cross-linked polymers Can be used.
【００１１】粒子としては、透明性を低下させないため
にポリエステル樹脂との親和性の高いことが望ましく、
この点からしてエチレンテレフタレート系ポリエステル
樹脂に対してはシリカが特に好適である。It is desirable that the particles have high affinity with the polyester resin so as not to lower the transparency.
From this point, silica is particularly suitable for the ethylene terephthalate polyester resin.
【００１２】これらの粒子の平均粒子径は０．１〜２０
μｍ、特に０．５〜１５μｍの範囲が好ましく、添加量
はポリエステル樹脂１００重量部に対し０．０１〜５重
量部、好ましくは０．０２〜１重量部の範囲である。The average particle size of these particles is from 0.1 to 20.
μm, particularly preferably 0.5 to 15 μm, and the addition amount is 0.01 to 5 parts by weight, preferably 0.02 to 1 part by weight based on 100 parts by weight of the polyester resin.
【００１３】平均粒子径が０．１μｍ未満の粒子では滑
り性改良効果があまりなく、２０μｍを越えるとシート
の透明性が悪くなる他、シート同士の接着やインクの均
一塗布が困難になる。ここで粒子の平均粒子径は、コー
ルタカウンター（日本科学機械社製）を用い、累積重量
分率が５０％となるときの粒子径をもって平均粒子径と
した。When the average particle diameter is less than 0.1 μm, the effect of improving the slipperiness is not so large. When the average particle diameter is more than 20 μm, the transparency of the sheet is deteriorated, and it becomes difficult to bond the sheets and to apply the ink uniformly. Here, the average particle diameter of the particles was determined by using a coulter counter (manufactured by Nippon Kagaku Kikai), and the particle diameter when the cumulative weight fraction became 50% was defined as the average particle diameter.
【００１４】粒子の添加量は、０．０１重量％未満では
滑り性改良効果がなく、５重量％を越えると透明性が低
下し、シート同士の接着性も低下する。If the amount of the particles is less than 0.01% by weight, the effect of improving the slip property is not obtained, and if it exceeds 5% by weight, the transparency is lowered and the adhesion between the sheets is also lowered.
【００１５】ポリエステル樹脂に粒子を配合する方法と
しては、重合時に添加する方法、重合後の樹脂にブレン
ダを用いて混合する方法などがあり特に限定するもので
はない。また必要に応じ、安定剤、滑剤、紫外線吸収
剤、顔料、他の熱可塑性樹脂などを添加することもでき
る。The method of blending the particles with the polyester resin includes a method of adding the particles at the time of polymerization and a method of mixing the resin after polymerization with a blender using a blender, and is not particularly limited. If necessary, stabilizers, lubricants, ultraviolet absorbers, pigments, and other thermoplastic resins can be added.
【００１６】樹脂のシート化は、公知の技術により実施
できる。すなわち、乾燥した樹脂を押出機に供給して溶
融し、Ｔダイから冷却ドラムに押し出して急冷し未延伸
シートにする。The resin sheet can be formed by a known technique. That is, the dried resin is supplied to an extruder, melted, extruded from a T-die into a cooling drum, and rapidly cooled to form an unstretched sheet.
【００１７】次に未延伸シートを延伸機に供給して少な
くとも一方向に延伸する。延伸は一方向について１．０
５倍以上、２倍以下の倍率で行う。好ましい延伸倍率は
１．１〜１．６倍である。Next, the unstretched sheet is supplied to a stretching machine and stretched in at least one direction. Stretching is 1.0 in one direction
Perform at a magnification of 5 times or more and 2 times or less. The preferred stretching ratio is 1.1 to 1.6 times.
【００１８】この延伸により、樹脂中の粒子がシート表
面に突出しやすくなり、少量の粒子添加で滑り性が大幅
に改善される。延伸倍率が１．０５倍未満では、滑り性
改良効果が少ない。また、２倍を越えると滑り性の改良
効果がそれ程向上しない割りには透明性の低下があり好
ましくなく、また一軸延伸した場合には、シートの特性
に方向性が現われる。By this stretching, the particles in the resin are more likely to protrude on the sheet surface, and the addition of a small amount of particles greatly improves the slipperiness. If the stretching ratio is less than 1.05, the effect of improving the slipperiness is small. On the other hand, when the ratio exceeds twice, the effect of improving the slipperiness is not so much improved, but the transparency is lowered, which is not preferable. In addition, when the film is uniaxially stretched, directionality appears in the properties of the sheet.
【００１９】２軸方向に延伸する場合には、各方向の延
伸倍率を１．４倍以下にするのがよい。延伸は従来公知
の装置により行うことができるが、実用上はロールによ
る縦一軸延伸が簡単でよい。延伸温度は、ポリエステル
樹脂の種類にもよるが、エチレンテレフタレート単位を
主成分とするポリエステル樹脂の場合、７５〜１３０℃
で行なうことができる。In the case of stretching in the biaxial direction, the stretching ratio in each direction is preferably 1.4 times or less. Stretching can be performed by a conventionally known device, but in practice, longitudinal uniaxial stretching by a roll may be simple. Although the stretching temperature depends on the type of the polyester resin, in the case of a polyester resin containing an ethylene terephthalate unit as a main component, the stretching temperature is 75 to 130 ° C.
Can be done at
【００２０】本発明においては、粒子の粒子径、添加量
および延伸倍率を前記範囲内で調整することにより、シ
ート表面に付与する凹凸の程度を調整することができ
る。一般的に好ましい表面粗さは、ＪＩＳ Ｂ０６０１
で規定する１０点平均粗さで０．２〜２μｍである。In the present invention, the degree of unevenness imparted to the sheet surface can be adjusted by adjusting the particle diameter, the amount added, and the stretching ratio of the particles within the above ranges. Generally preferred surface roughness is JIS B0601
Is 0.2 to 2 μm in terms of 10-point average roughness defined by
【００２１】本ポリエステルシートは、粒子添加層を表
面層とする多層シートとしてもよい。この場合、中間層
は粒子を添加しない層とするのが、透明性を高める意味
で好ましい。また表面層および中間層の材質は、層間接
着性、均一延伸性などの点からは同一樹脂とするのが好
ましいが、要求される特性に応じて異種のポリエステル
樹脂の組み合わせとすることもできる。The polyester sheet may be a multilayer sheet having a particle-added layer as a surface layer. In this case, the intermediate layer is preferably a layer to which no particles are added, from the viewpoint of increasing transparency. The materials of the surface layer and the intermediate layer are preferably the same resin in terms of interlayer adhesion, uniform stretchability, and the like, but may be a combination of different polyester resins according to the required characteristics.
【００２２】本シートの厚さは特に制限はないが、通常
５０〜５００μｍ、特に２００〜４００μｍ程度であ
る。多層シートの場合は、表面層の厚さを５〜５０μｍ
程度とするのがよい。Although the thickness of the present sheet is not particularly limited, it is usually about 50 to 500 μm, especially about 200 to 400 μm. In the case of a multilayer sheet, the thickness of the surface layer is 5 to 50 μm
It is good to be about.
【００２３】本発明シートは、実質上無配向のシートを
１．０５〜２倍、特に１．１〜１．６倍という低倍率で
延伸することにより、透明性を損なうことなく滑り性を
改良することができ、また無配向シートの持つ良好な二
次加工性を維持したものとなる。The sheet of the present invention has improved slipperiness without impairing transparency by stretching a substantially non-oriented sheet at a low magnification of 1.05 to 2 times, particularly 1.1 to 1.6 times. And the good secondary workability of the non-oriented sheet is maintained.
【００２４】[0024]
（実施例１）極限粘度０．６５のポリエチレンテレフタ
レートのペレットに、平均粒子径２．５μｍのシリカ微
粒子を０．２重量部添加し、ベント口が２ケ所ある同方
向二軸押出機により溶融、混練を行い、押出機先端に取
り付けたギアポンプで定量供給して口金より２８５℃で
シート状に押し出した。(Example 1) To a polyethylene terephthalate pellet having an intrinsic viscosity of 0.65, 0.2 parts by weight of silica fine particles having an average particle diameter of 2.5 µm was added, and the mixture was melted by a coaxial twin-screw extruder having two vent ports. The mixture was kneaded, supplied in a fixed amount by a gear pump attached to the tip of the extruder, and extruded at 285 ° C. from a die into a sheet.
【００２５】そのシートを６０℃の冷却ドラム上にキヤ
ストし、無延伸シートとした後、ロール法縦延伸機で長
さ方向に９０℃で表１に示す倍率で延伸し、厚さ２５０
μｍのポリエステルシートにした。また比較のため、縦
延伸を行わずに厚さ２５０μｍのポリエステルシートを
得た。The sheet was cast on a cooling drum at 60 ° C. to form a non-stretched sheet, and then stretched in a longitudinal direction at 90 ° C. by a roll method longitudinal stretching machine at a magnification shown in Table 1 to obtain a sheet having a thickness of 250 mm.
μm polyester sheet. For comparison, a polyester sheet having a thickness of 250 μm was obtained without longitudinal stretching.
【００２６】得られたシートの透明度（ヘーズ）、滑り
性（摩擦係数）を測定した結果を表１に示す。なお、ヘ
ーズはＪＩＳ Ｋ７１０５により、摩擦係数はＪＩＳ
Ｋ７２１５により測定した。The results of measuring the transparency (haze) and the slipperiness (coefficient of friction) of the obtained sheet are shown in Table 1. The haze is in accordance with JIS K7105, and the friction coefficient is in accordance with JIS.
It was measured by K7215.
【００２７】[0027]
【表１】 [Table 1]
【００２８】この結果から、延伸倍率１．０５〜２倍の
範囲で延伸したものは、ヘーズと滑り性のバランスがよ
く、特に延伸倍率１．１〜１．６倍の範囲が最良の結果
を示した。また本発明シートは、図１のように打ち抜
き、罫線付与して折り曲げたところ、良好な折り曲げ加
工性を示した。From these results, it was found that a film stretched at a draw ratio of 1.05 to 2 times had a good balance between haze and slipperiness, and the best result was obtained at a draw ratio of 1.1 to 1.6 times. Indicated. The sheet of the present invention was punched out as shown in FIG. 1, added with ruled lines, and bent, and showed good bending workability.
【００２９】（実施例２）実施例１と同様にして、表２
に示す平均粒子径（μｍ）のシリカ微粒子を表２に示す
割合（重量部）になるよう添加してシート状に押し出
し、ロール法縦延伸機で長さ方向に９０℃で１．５倍延
伸し、厚さ２５０μｍのポリエステルシートにした。ま
た比較のため、縦延伸を行わずに厚さ２５０μｍのポリ
エステルシートを得た。得られたシートの透明度（ヘー
ズ）、滑り性（摩擦係数）を測定した結果を表２に示
す。(Example 2) In the same manner as in Example 1, Table 2
The silica fine particles having an average particle diameter (μm) shown in Table 2 were added at the ratio (parts by weight) shown in Table 2, extruded into a sheet, and stretched 1.5 times at 90 ° C. in the length direction by a roll-type vertical stretching machine. Then, a polyester sheet having a thickness of 250 μm was obtained. For comparison, a polyester sheet having a thickness of 250 μm was obtained without longitudinal stretching. Table 2 shows the results of measuring the transparency (haze) and the slipperiness (friction coefficient) of the obtained sheet.
【００３０】[0030]
【表２】 [Table 2]
【００３１】以上の結果から、同じ粒子を添加したもの
でも、低倍率で延伸することにより、透明性を損なわず
に無延伸シートよりも滑り性を大幅に改善できることが
わかる。From the above results, it can be seen that even when the same particles are added, by stretching at a low magnification, the slipperiness can be significantly improved as compared with the unstretched sheet without impairing the transparency.
【００３２】（実施例３）２台の単軸押出機に各々、平
均粒子径２．５μｍのシリカ微粒子を０．２重量部添加
したポリエステル樹脂と、シリカ微粒子を添加しないポ
リエチレンテレフタレート樹脂を供給し、フイードブロ
ツクの付属したＴダイで、非添加のポリエチレンテレフ
タレート樹脂を中間層として３層ポリエステルシートを
押し出し、実施例１と同様にして縦延伸を行い厚さ２５
０μｍ（外層が各々２５μｍ、中間層が２００μｍ）の
シートとした。比較例のため、縦延伸を行わずに厚さ２
５０μｍのシートを得た。得られたシートの透明度（ヘ
ーズ）、滑り性（摩擦係数）を測定した結果を表３に示
す。Example 3 A polyester resin containing 0.2 parts by weight of silica fine particles having an average particle diameter of 2.5 μm and a polyethylene terephthalate resin not containing silica fine particles were supplied to two single screw extruders. Then, a three-layer polyester sheet was extruded with a non-added polyethylene terephthalate resin as an intermediate layer using a T-die provided with a feed block, and was longitudinally stretched in the same manner as in Example 1 to obtain a thickness of 25%.
A sheet having a thickness of 0 μm (the outer layer was 25 μm each and the intermediate layer was 200 μm) was obtained. For the comparative example, thickness 2 without longitudinal stretching
A 50 μm sheet was obtained. Table 3 shows the results of measuring the transparency (haze) and the slipperiness (friction coefficient) of the obtained sheet.
【００３３】なおＮｏ．１５〜１６は外層としてポリエ
チレンテレフタレートを用い、Ｎｏ．１７〜１８は、外
層として酸成分がテレフタル酸８０モル％とイソフタル
酸２０モル％とからなり、ジオール成分がエチレングリ
コールである共重合ポリエステルを用いた。No. Nos. 15 and 16 used polyethylene terephthalate as the outer layer. In Nos. 17 to 18, the outer layer used was a copolymerized polyester in which the acid component was composed of 80 mol% of terephthalic acid and 20 mol% of isophthalic acid, and the diol component was ethylene glycol.
【００３４】[0034]
【表３】 [Table 3]
【００３５】３層構造とした本発明シートも、滑り性と
透明性がともに良好である。また共重合ポリエステルを
外層として用いたＮｏ．１７は、滑り性と透明性におい
てはＮｏ．１６とほぼ同等であるが、Ｎｏ．１７のシー
トより図１の形状に打ち抜いたシートは、折り曲げ加工
してケースを形成する場合、有機溶剤（テトラヒドロフ
ランなど）のみで接着代３の貼り合わせが可能であり、
接着性の点で優れている。The sheet of the present invention having a three-layer structure also has good slipperiness and transparency. In addition, No. 1 using the copolymerized polyester as the outer layer. No. 17 is No. 17 in slipperiness and transparency. No. 16 but almost the same. The sheet punched out from the sheet No. 17 into the shape shown in FIG. 1 can be bonded with only an organic solvent (such as tetrahydrofuran) when forming a case by bending.
Excellent in adhesiveness.
【００３６】[0036]
【発明の効果】本発明シートは、ポリエステル樹脂に粒
子を添加して低倍率で延伸することにより、少量の粒子
添加でも表面に凹凸が形成され、透明性、二次加工性を
損なうことなく滑り性を改良することができる。The sheet of the present invention is formed by adding particles to a polyester resin and stretching it at a low magnification, whereby irregularities are formed on the surface even when a small amount of particles are added, and the sheet slides without impairing the transparency and the secondary workability. Properties can be improved.
【図１】本発明シートの使用例を示す平面図。FIG. 1 is a plan view showing a usage example of a sheet of the present invention.
１ ポリエステルシート ２ 罫線 ３ 接着代 1 Polyester sheet 2 Ruled line 3 Adhesion allowance
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０８Ｌ 67/00 Ｂ６５Ｄ 5/42 Ｚ // Ｂ２９Ｋ 67:00 Ｂ２９Ｌ 7:00 (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 55/00 - 55/30 C08J 5/18 B65D 5/00 - 5/76 B65D 75/28 - 75/36 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 identification code FI C08L 67/00 B65D 5/42 Z // B29K 67:00 B29L 7:00 (58) Fields surveyed (Int.Cl. 7 , (DB name) B29C 55/00-55/30 C08J 5/18 B65D 5/00-5/76 B65D 75/28-75/36
Claims (1)
平均粒子径２０μｍ以下の粒子を０．０１〜５重量部添
加した実質上無配向のシートを少なくとも１方向につい
て１．０５〜２倍延伸したポリエステルシートを所定形
状に打ち抜き、折り曲げ用の罫線を形成してなるシー
ト。(1) 100 parts by weight of a polyester resin,
For a substantially non-oriented sheet of the following particles with an average particle size 20μm was added 0.01 to 5 parts by weight in at least one direction
1 Preformed polyester sheet stretched from 05 to 2 times
A sheet formed by punching into a shape and forming a ruled line for bending .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26514791A JP3203260B2 (en) | 1991-10-15 | 1991-10-15 | Polyester sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26514791A JP3203260B2 (en) | 1991-10-15 | 1991-10-15 | Polyester sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05105776A JPH05105776A (en) | 1993-04-27 |
| JP3203260B2 true JP3203260B2 (en) | 2001-08-27 |
Family
ID=17413289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26514791A Expired - Lifetime JP3203260B2 (en) | 1991-10-15 | 1991-10-15 | Polyester sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3203260B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08324627A (en) * | 1995-05-26 | 1996-12-10 | Fuji Seal Co Ltd | Creased plastic sheet |
-
1991
- 1991-10-15 JP JP26514791A patent/JP3203260B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08324627A (en) * | 1995-05-26 | 1996-12-10 | Fuji Seal Co Ltd | Creased plastic sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05105776A (en) | 1993-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2059390B1 (en) | Multilayered aliphatic polyester film | |
| JP2004224051A (en) | Polyester film and its manufacturing method | |
| JP2006009023A (en) | Biaxially oriented polyester film and its production method | |
| KR20040067917A (en) | Polyester Film Having Improved Oxygen Barrier and Poly(m-xyleneadipamide)-containing Overlayer, Process for its Production and Its Use | |
| JP3203261B2 (en) | Polyester sheet for thermoforming | |
| JP2008142916A (en) | Antistatic polyester film | |
| JPH08244114A (en) | Polyester type shrinkable film | |
| JP3203260B2 (en) | Polyester sheet | |
| JP2005105255A (en) | Biaxially oriented polyester film | |
| JP2962975B2 (en) | Multilayer polyester sheet | |
| JP3510283B2 (en) | Adhesive film | |
| JP3960741B2 (en) | Heat-shrinkable polyester multilayer film | |
| JP3829295B2 (en) | Laminated polyester film | |
| JP2003340922A (en) | Method for manufacturing white heat-shrinkable polyester film for shrink label | |
| JP4804273B2 (en) | Antistatic polyester film | |
| JPH08323923A (en) | Laminate of liquid crystal polyester resin composition film and metal foil and printed wiring board using the same | |
| JPH05237926A (en) | Polyester sheet | |
| JPH07224176A (en) | Polyester sheet excellent in slip properties and package made of it | |
| JP6191360B2 (en) | Polylactic acid resin sheet and molded product | |
| JP3296022B2 (en) | White film | |
| JPH0732560A (en) | Multi-ply polyester sheet | |
| JP2004330476A (en) | Biaxially stretched laminated polyester film | |
| KR0185609B1 (en) | Transparent polyester multi-layer sheet | |
| JP3125542B2 (en) | Laminated polyester film | |
| JP2000280431A (en) | Multilayered polyester sheet and packaging container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080622 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 7 Free format text: PAYMENT UNTIL: 20080622 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090622 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20100622 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20100622 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110622 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110622 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20120622 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120622 Year of fee payment: 11 |