JPH0741745A - Pressure-sensitive adhesive tape and its production - Google Patents
Pressure-sensitive adhesive tape and its productionInfo
- Publication number
- JPH0741745A JPH0741745A JP20371093A JP20371093A JPH0741745A JP H0741745 A JPH0741745 A JP H0741745A JP 20371093 A JP20371093 A JP 20371093A JP 20371093 A JP20371093 A JP 20371093A JP H0741745 A JPH0741745 A JP H0741745A
- Authority
- JP
- Japan
- Prior art keywords
- release agent
- silicone
- base material
- agent layer
- adhesive tape
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、合成樹脂フィルムを基
材とした粘着テープに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape having a synthetic resin film as a base material.
【０００２】[0002]
【従来の技術】従来、例えば布や紙製の基材を用いた粘
着テープについては、シリコーン系離型剤層を形成する
の背面処理を施しておくことで、巻き戻し時の滑らかな
粘着テープの引き出しができるようになっている。2. Description of the Related Art Conventionally, for example, a pressure-sensitive adhesive tape using a cloth or paper base material has been subjected to a back surface treatment for forming a silicone-based release agent layer so that the pressure-sensitive adhesive tape can be smoothly rewound. You can withdraw.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、合成樹
脂フィルムを基材とした粘着テープについては、基材面
へのシリコーン系離型剤層の充分な付着力が得られない
問題がある。However, the pressure-sensitive adhesive tape using a synthetic resin film as a base material has a problem that a sufficient adhesive force of the silicone type release agent layer to the base material surface cannot be obtained.
【０００４】シリコーン系離型剤層の付着力が弱いと、
製造過程での巻き上げ・巻き戻し時にシリコーン系離型
剤層が剥離し、製品とした後の巻き戻しがスムーズでな
くなるばかりか、背面への過剰な粘着によって、粘着テ
ープの引き出し時にテープ切れを生じる原因ともなる。If the adhesive force of the silicone type release agent layer is weak,
The silicone-based release agent layer peels off during winding and rewinding in the manufacturing process, and not only does the rewinding after the product become unsmooth, but excessive sticking to the back side causes tape breakage when the adhesive tape is pulled out. It can be a cause.
【０００５】このため、合成樹脂フィルムを基材とした
粘着テープについては、シリコーン系離型剤による背面
処理を用いることができず、他の背面処理によって巻き
戻し性を得ることが行われているが、シリコーン系離型
剤による背面処理に比して充分な巻き戻し性が得られて
いない。Therefore, with respect to the adhesive tape having the synthetic resin film as the base material, the back surface treatment with the silicone type release agent cannot be used, and the rewinding property is obtained by other back surface treatment. However, sufficient rewinding property is not obtained as compared with the back surface treatment with a silicone-based release agent.
【０００６】本発明は、このような問題点に鑑みてなさ
れたもので、合成樹脂フィルムを基材とした粘着テープ
において、基材に対してシリコーン系離型剤層を強固に
付着させ、シリコーン系離型剤の優れた離型作用によっ
て、巻き戻し性を向上させることを目的とする。The present invention has been made in view of the above problems, and in a pressure-sensitive adhesive tape having a synthetic resin film as a base material, a silicone-based release agent layer is firmly adhered to the base material to form a silicone-based release agent layer. The purpose of the present invention is to improve the rewindability by the excellent releasing action of the system release agent.
【０００７】[0007]
【課題を解決するための手段及び作用】このために本発
明で講じられた手段を図１で説明すると、請求項１の発
明では、合成樹脂フィルムである基材１の片面にシリコ
ーン系離型剤層２、基材１の他面に粘着剤層３を設け、
しかもシリコーン系離型剤層２付設側の基材１表面につ
いてのぬれ試験法による表面張力を３９ｄｙｎ／ｃｍ以
上としているものである。[Means and Actions for Solving the Problems] The means taken for this purpose in the present invention will be described with reference to FIG. 1. An adhesive layer 3 is provided on the other surface of the agent layer 2 and the base material 1,
In addition, the surface tension of the surface of the base material 1 on the side where the silicone-based release agent layer 2 is attached is set to 39 dyn / cm or more by the wetting test method.
【０００８】また、請求項２の発明では、合成樹脂フィ
ルムである基材１の片面に、ぬれ試験法による表面張力
を３９ｄｙｎ／ｃｍ以上とするコロナ放電処理を施し、
このコロナ放電処理面にシリコーン系離型剤を塗布硬化
させると共に、基材１の他面に粘着剤を付設しているも
のである。According to the second aspect of the present invention, one side of the base material 1 which is a synthetic resin film is subjected to corona discharge treatment having a surface tension of 39 dyn / cm or more by a wetting test method,
A silicone-based release agent is applied and cured on this corona discharge treated surface, and an adhesive is attached to the other surface of the base material 1.
【０００９】更に本発明を説明する。The present invention will be further described.
【００１０】まず、本発明で基材１として使用する合成
樹脂フィルムの種類は特に制限はなく、どのような用途
に用いるかに応じて選択すれば足る。例えば、発泡ポリ
スチレン製の箱に、内容物、規格、会社名等を表示する
ために貼付される粘着テープについては、粘着テープを
いちいち剥すことなく箱の再生利用ができるようにする
ために、ポリスチレン系フィルムが最適である。ポリス
チレン系フィルムとは、ポリスチレン、ブタジエン−ス
チレン共重合体やスチレン−アクリロニトリル共重合体
又はポリスチレンとこれらの共重合体の混合物からなる
フィルムである。First, the kind of the synthetic resin film used as the base material 1 in the present invention is not particularly limited, and may be selected according to the intended use. For example, for an adhesive tape that is attached to a box made of expanded polystyrene to display the contents, standards, company name, etc., in order to reuse the box without peeling the adhesive tape, A system film is most suitable. The polystyrene film is a film made of polystyrene, a butadiene-styrene copolymer, a styrene-acrylonitrile copolymer, or a mixture of polystyrene and these copolymers.
【００１１】以下、上記ポリスチレン系フィルムを基材
１とした場合を例に本発明を更に説明する。The present invention will be further described below with reference to the case where the above polystyrene film is used as the substrate 1.
【００１２】基材１として用いるポリスチレン系フィル
ムは延伸フィルムであることが好ましく、横方向の延伸
倍率をλＴD 、縦方向の延伸倍率をλＭD とした時に、
２≦λＴD ＜λＭD であることが好ましい。このように
すると、ポリスチレン系フィルムの脆性や引っ張り強度
が改良され、しかも得られる粘着テープが横方向の引き
裂き性に優れたものとなる。[0012] Preferably polystyrene film used as the substrate 1 is a stretched film, the stretching ratio in the transverse direction .lambda.T D, the longitudinal stretching ratio when a .lambda.M D,
It is preferable that 2 ≦ λT D <λM D. By doing so, the brittleness and tensile strength of the polystyrene-based film are improved, and the resulting adhesive tape has excellent lateral tearability.
【００１３】シリコーン系離型剤層２は硬化型のシリコ
ーン系離型剤を塗布硬化させることで形成されるもの
で、この硬化型のシリコーン系離型剤としては、付加型
シリコーン、白金系触媒及びアセチレン系硬化型遅延剤
を溶剤に混合分散したものが好ましい。溶剤としては、
ポリスチレン系フィルムに対する影響の少ないヘキサ
ン、ヘプタン又はこれらの混合物が好ましい。The silicone-based release agent layer 2 is formed by coating and curing a curable silicone-based release agent. Examples of the curable silicone-based release agent include addition-type silicone and platinum-based catalyst. It is preferable to mix and disperse the acetylene-based curable retarder in a solvent. As a solvent,
Hexane, heptane, or a mixture thereof, which has little influence on the polystyrene film, is preferable.
【００１４】上記好ましいシリコーン系離型剤の各成分
の配合量は、付加型シリコーン１００重量部に対して、
白金系触媒３〜７重量部、アセチレン系硬化遅延剤６〜
１４重量部、溶剤５００〜１５００重量部であることが
好ましい。The blending amount of each component of the above preferred silicone type release agent is 100 parts by weight of addition type silicone.
Platinum catalyst 3 to 7 parts by weight, acetylene cure retarder 6 to
It is preferable that the amount is 14 parts by weight and the solvent is 500 to 1500 parts by weight.
【００１５】シリコーン系離型剤は、基材１であるポリ
スチレン系フィルムの保護のため、塗布後直ちに溶剤を
除去（乾燥）させることが好ましい。塗布後３秒以内
に、離型剤として充分な程度に硬化するまで乾燥させる
ことが好ましい。In order to protect the polystyrene film which is the substrate 1, the silicone release agent is preferably removed (dried) of the solvent immediately after coating. It is preferable to dry the coating within 3 seconds after coating until it is sufficiently cured as a release agent.
【００１６】シリコーン系離型剤の塗布量は、上述の混
合液で５００ｍｇ／ｍ2 〜２０ｇ／ｍ2 であることが好
ましい。The coating amount of the silicone release agent is preferably 500 mg / m 2 to 20 g / m 2 in the above-mentioned mixed solution.
【００１７】本発明においては、上記シリコーン系離型
剤を塗布硬化させてシリコーン系離型剤層２を形成する
前に、少なくともこのシリコーン系離型剤層２を形成す
る側の基材１の表面を、ぬれ試験法による表面張力が３
９ｄｙｎ／ｃｍ以上となるようにしておくことが必要
で、好ましくは４２ｄｙｎ／ｃｍ以上である。このよう
な表面張力の調整を行っておくことによって、シリコー
ン系離型剤層２と基材１との付着力が向上し、シリコー
ン系離型剤層２の剥離を防止することができる。In the present invention, before the silicone type release agent is applied and cured to form the silicone type release agent layer 2, at least the base material 1 on the side where the silicone type release agent layer 2 is formed is formed. The surface has a surface tension of 3 according to the wetting test method.
It is necessary to be 9 dyn / cm or more, preferably 42 dyn / cm or more. By adjusting the surface tension in this way, the adhesive force between the silicone-based release agent layer 2 and the substrate 1 is improved, and the silicone-based release agent layer 2 can be prevented from peeling off.
【００１８】尚、本発明におけるぬれ試験法とは、ＪＩ
Ｓ・Ｋ・６７６８「ポリエチレン及びポリプロピレンフ
ィルムのぬれ試験方法」を、使用する基材１のフィルム
に対して適用したぬれ試験法をいう。The wetting test method in the present invention is defined by JI
S.K.6768 "Wetness test method for polyethylene and polypropylene films" is applied to the film of the base material 1 to be used.
【００１９】基材１の表面張力の調整は、シリコーン系
離型剤層２の付設面のみではなく、後述する粘着剤層３
の付設面についても行うことができる。粘着剤層３の付
設面についても表面張力の調整を行っておくと、粘着剤
層３の基材１に対する付着力を向上させることができ
る。The surface tension of the substrate 1 is adjusted not only on the surface on which the silicone type release agent layer 2 is attached, but also on the pressure-sensitive adhesive layer 3 described later.
It can also be done on the attachment surface. If the surface tension of the attached surface of the pressure-sensitive adhesive layer 3 is also adjusted, the adhesive force of the pressure-sensitive adhesive layer 3 to the base material 1 can be improved.
【００２０】基材１の表面張力の調整は、コロナ放電処
理によって行うことができる。The surface tension of the substrate 1 can be adjusted by corona discharge treatment.
【００２１】上記コロナ放電処理は、高電圧発生器に接
続した電極と、例えばポリエステル、ハイパロン、ＥＰ
ラバー等でカバーした金属ロールとの間に、０．５〜
０．６ｍｍ程度の隙間を開けると共に数百Ｋｃ／ｓの高
周波を数千〜数万Ｖの高電圧で印加し、この隙間に基材
１を一定速度で走らせる通常の方法で行うことができ
る。具体的には、例えば春日電機社製の「ＨＦ４０３
型」等の装置で容易に行うことができる。The corona discharge treatment is performed by using an electrode connected to a high voltage generator and, for example, polyester, hypalon, EP.
Between the metal roll covered with rubber etc., 0.5 ~
It can be performed by an ordinary method in which a gap of about 0.6 mm is opened and a high frequency of several hundred Kc / s is applied at a high voltage of several thousand to tens of thousands of V, and the base material 1 runs in this gap at a constant speed. . Specifically, for example, "HF403 manufactured by Kasuga Denki Co., Ltd.
It can be easily performed by a device such as a “mold”.
【００２２】粘着剤層３を構成する粘着剤としては、ア
クリル系、天然ゴム系、ウレタン系、合成ゴム系、ビニ
ル系のホモポリマー又はいずれかを５０重量％以上含む
コポリマー等があり、形態としては４０〜６０重量％の
エマルジョン型、ホットメルト型、２０〜４５重量％の
溶剤型等がある。The pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 3 may be an acrylic, natural rubber-based, urethane-based, synthetic rubber-based, vinyl-based homopolymer, or a copolymer containing 50% by weight or more of any of them. There are 40 to 60% by weight of emulsion type, hot melt type and 20 to 45% by weight of solvent type.
【００２３】更に具体的には、天然ゴム系のエマルジョ
ン型には、セメダイン社の「ＣＴ１１６」、合成ゴム系
のホットメルト型にはセメダイン社の「ＨＭ６５５」、
「ＨＭ６５０」、ビニル系共重合体系のエマルジョン型
には日栄化工社の「ライフボンドＡＶ−６５０シリー
ズ」等がある。More specifically, the natural rubber emulsion type "CT116" manufactured by Cemedine, the synthetic rubber hot melt type "HM655" manufactured by Cemedine,
"HM650", emulsion type vinyl based copolymers include "Lifebond AV-650 series" manufactured by Nieei Kako.
【００２４】上記粘着剤の基材１への塗布量は、５ｇ／
ｍ2 以上であることが好ましい。５ｇ／ｍ2 未満では粘
着強度が不足しがちとなる。The coating amount of the above-mentioned adhesive on the substrate 1 is 5 g /
It is preferably m 2 or more. If it is less than 5 g / m 2 , the adhesive strength tends to be insufficient.
【００２５】ところで、粘着テープには、経時的に巻き
が軸方向にずれて、芯（例えば紙管）に巻かれた粘着テ
ープが芯から軸方向にずれ出て来る、所謂竹の子現象を
生じるものがある。この竹の子現象を防止するために
は、粘着剤層３の保持力が６０分以上のものであること
が好ましい。このような粘着剤層３の形成は、前述の粘
着剤中の成分の弾性体の重合度の調節、粘着付与剤や軟
化剤の添加量の調節によって行うことができる。By the way, the adhesive tape causes a so-called bamboo shoot phenomenon in which the winding is axially displaced with time, and the adhesive tape wound around a core (for example, a paper tube) is axially displaced from the core. There is. In order to prevent this bamboo shoot phenomenon, it is preferable that the adhesive layer 3 have a holding force of 60 minutes or more. Such formation of the pressure-sensitive adhesive layer 3 can be performed by adjusting the degree of polymerization of the elastic body of the above-mentioned components in the pressure-sensitive adhesive and adjusting the addition amount of the tackifier or the softener.
【００２６】尚、上記保持力は、ＪＩＳ・Ｚ・０２３７
「粘着テープ・粘着シート試験方法」に示される保持力
の測定方法に基づいて測定した値をいう。Incidentally, the holding force is JIS Z 0237.
It means the value measured based on the measuring method of the holding force shown in "Adhesive tape / adhesive sheet test method".
【００２７】シリコーン系離型剤と粘着剤の付設は、基
材１の表面張力を調整した後、基材を一定の速度で移動
させつつ、片面にシリコーン系離型剤塗布硬化させると
共に他面に粘着剤を塗布乾燥させることで行うことがで
きる。The silicone-based releasing agent and the pressure-sensitive adhesive are attached by adjusting the surface tension of the base material 1 and then moving the base material at a constant speed while coating and curing the silicone-based release agent on one surface and the other surface. It can be carried out by applying an adhesive to and drying.
【００２８】[0028]
実施例１〜４ 厚さ４０μｍ、λＴD ＝２、λＭD ＝６の延伸ポリスチ
レンフィルム（旭化成工業社製の「ＯＰＳフィルム」）
を基材とし、春日電機社製「ＨＦ４０３」型のコロナ放
電処理装置を用い、処理電力変えてこの基材にコロナ放
電処理を施した。Examples 1 to 4 Stretched polystyrene film having a thickness of 40 μm, λT D = 2, and λM D = 6 (“OPS film” manufactured by Asahi Kasei Corporation)
Was used as a base material and a corona discharge treatment device of "HF403" type manufactured by Kasuga Denki Co., Ltd. was used.
【００２９】得られた基材のコロナ放電処理面の表面張
力を表１に示す。Table 1 shows the surface tension of the corona discharge treated surface of the obtained base material.
【００３０】各基材のコロナ放電処理面に、５０ｍ／ｍ
ｉｎの速度で基材を移動させながら、シリコーンの７重
量％ペプタン溶液に触媒と遅延剤を加えた硬化型のシリ
コーン系離型剤をメイヤーバー（＃１０）で６ｇ／ｍ2
（ウエット）塗布し、各々１００℃でキュアした。ま
た、キュア時間は表１に示されるように、１０〜４０秒
の間で変化させた。50 m / m on the corona discharge treated surface of each substrate
While moving the base material at a speed of in, a curable silicone type release agent obtained by adding a catalyst and a retarder to a 7% by weight silicone solution in peptane was added to a Mayer bar (# 10) at 6 g / m 2
(Wet) coating, and each was cured at 100 ° C. Further, the curing time was changed from 10 to 40 seconds as shown in Table 1.
【００３１】得られたシリコーン系離型剤層を有する延
伸ポリスチレンフィルムについて、シリコーン系離型剤
層の付着状態を評価した。この評価は、シリコーン系離
型剤層面を指先で擦った後、当該箇所に市販のセロハン
テープを付着させ、引き剥した時の状態から行った。With respect to the obtained stretched polystyrene film having a silicone-based release agent layer, the adhesion state of the silicone-based release agent layer was evaluated. This evaluation was performed from the state when the surface of the silicone type release agent layer was rubbed with a fingertip, a commercially available cellophane tape was attached to the location, and the tape was peeled off.
【００３２】結果を表１に示す。The results are shown in Table 1.
【００３３】尚、評価基準は次の通りである。The evaluation criteria are as follows.
【００３４】◎：大きな抵抗力なく剥れ、しかもセロハ
ンテープの粘着面へのシリコーン系離型剤層の付着が認
められなかったもの。⊚: Peeling off without great resistance and no adhesion of the silicone type release agent layer to the adhesive surface of the cellophane tape.
【００３５】○：多少引き剥し時の抵抗力の増加が感じ
られたが、セロハンテープの粘着面へのシリコーン系離
型剤層の付着はほとんど見られなかったもの。◯: The resistance when peeled off was slightly increased, but almost no adhesion of the silicone-based release agent layer to the adhesive surface of the cellophane tape was observed.
【００３６】△：部分的に引き剥し時の抵抗力の増加が
感じられ、しかもセロハンテープの粘着面へのシリコー
ン系離型剤層の付着が認められたもの。Δ: An increase in resistance at the time of peeling was partially felt, and adhesion of the silicone release agent layer to the adhesive surface of the cellophane tape was observed.
【００３７】×：全体的に引き剥し時の抵抗力が大きく
増大し、しかもセロハンテープの粘着面の広い範囲に亙
ってシリコーン系離型剤層の付着が認められたもの。X: The resistance force at the time of peeling was greatly increased as a whole, and the adhesion of the silicone type release agent layer was recognized over a wide range of the adhesive surface of the cellophane tape.
【００３８】比較例１ コロナ放電処理を行わなかった点を除いて実施例１と同
様にしてシリコーン系離型剤層の形成を行い、実施例１
と同様にしてシリコーン系離型剤層の付着状態を評価し
た。Comparative Example 1 A silicone type release agent layer was formed in the same manner as in Example 1 except that the corona discharge treatment was not performed.
The adhesion state of the silicone type release agent layer was evaluated in the same manner as in.
【００３９】結果を表１に示す。The results are shown in Table 1.
【００４０】[0040]
【表１】 [Table 1]
【００４１】[0041]
【発明の効果】本発明は、以上説明した通りのものであ
り、シリコーン系離型剤層２を基材１に強固に付設する
ことができ、このシリコーン系離型剤層２の剥離を生じ
ないので、シリコーン系離型剤層２によって良好な巻き
戻し性を得ることができるものである。The present invention is as described above, and it is possible to firmly attach the silicone-based release agent layer 2 to the base material 1 and to cause the release of the silicone-based release agent layer 2. Since the silicone-based release agent layer 2 does not exist, good rewinding property can be obtained.
【図１】本発明に係る粘着テープの縦断面図である。FIG. 1 is a vertical sectional view of an adhesive tape according to the present invention.
１ 基材 ２ シリコーン系離型剤層 ３ 粘着剤層 1 Base Material 2 Silicone Release Agent Layer 3 Adhesive Layer
Claims (2)
リコーン系離型剤層、基材の他面に粘着剤層が設けられ
ており、しかもシリコーン系離型剤層付設側の基材表面
についてのぬれ試験法による表面張力が３９ｄｙｎ／ｃ
ｍ以上であることを特徴とする粘着テープ。1. A base material, which is a synthetic resin film, has a silicone release agent layer on one surface and an adhesive layer on the other surface of the base material, and the surface of the base material on which the silicone release agent layer is provided. Has a surface tension of 39 dyn / c according to the wetting test method.
An adhesive tape having a length of m or more.
ぬれ試験法による表面張力を３９ｄｙｎ／ｃｍ以上とす
るコロナ放電処理を施し、このコロナ放電処理面にシリ
コーン系離型剤を塗布硬化させると共に、基材の他面に
粘着剤を付設することを特徴とする粘着テープの製造方
法。2. One side of a base material which is a synthetic resin film,
Characterized by corona discharge treatment with a surface tension of 39 dyn / cm or more according to the wetness test method, applying a silicone release agent on the corona discharge treated surface and curing it, and attaching an adhesive to the other surface of the base material. And a method for producing an adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20371093A JPH0741745A (en) | 1993-07-27 | 1993-07-27 | Pressure-sensitive adhesive tape and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20371093A JPH0741745A (en) | 1993-07-27 | 1993-07-27 | Pressure-sensitive adhesive tape and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0741745A true JPH0741745A (en) | 1995-02-10 |
Family
ID=16478573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20371093A Pending JPH0741745A (en) | 1993-07-27 | 1993-07-27 | Pressure-sensitive adhesive tape and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0741745A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003041216A (en) * | 2001-08-02 | 2003-02-13 | Nitto Denko Corp | Surface protecting sheet and method for manufacturing the same |
| JP2009046647A (en) * | 2007-08-16 | 2009-03-05 | Toray Saehan Inc | Polyester film excellent in peeling-strength stability with time and manufacturing method thereof |
| JP2011102400A (en) * | 2011-01-27 | 2011-05-26 | Nitto Denko Corp | Surface protection sheet and method for producing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6386786A (en) * | 1986-09-30 | 1988-04-18 | Nitto Electric Ind Co Ltd | Tacky adhesive tape for sealing corrugated box |
| JPH03211049A (en) * | 1990-01-16 | 1991-09-13 | Honshu Paper Co Ltd | Release film and preparation thereof |
-
1993
- 1993-07-27 JP JP20371093A patent/JPH0741745A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6386786A (en) * | 1986-09-30 | 1988-04-18 | Nitto Electric Ind Co Ltd | Tacky adhesive tape for sealing corrugated box |
| JPH03211049A (en) * | 1990-01-16 | 1991-09-13 | Honshu Paper Co Ltd | Release film and preparation thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003041216A (en) * | 2001-08-02 | 2003-02-13 | Nitto Denko Corp | Surface protecting sheet and method for manufacturing the same |
| JP4694061B2 (en) * | 2001-08-02 | 2011-06-01 | 日東電工株式会社 | Surface protective sheet and manufacturing method thereof |
| JP2009046647A (en) * | 2007-08-16 | 2009-03-05 | Toray Saehan Inc | Polyester film excellent in peeling-strength stability with time and manufacturing method thereof |
| JP2011102400A (en) * | 2011-01-27 | 2011-05-26 | Nitto Denko Corp | Surface protection sheet and method for producing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19980407 |