JPS6327538A - Thin film of polyvinyl chloride subjected to releasing treatment - Google Patents
Thin film of polyvinyl chloride subjected to releasing treatmentInfo
- Publication number
- JPS6327538A JPS6327538A JP16930286A JP16930286A JPS6327538A JP S6327538 A JPS6327538 A JP S6327538A JP 16930286 A JP16930286 A JP 16930286A JP 16930286 A JP16930286 A JP 16930286A JP S6327538 A JPS6327538 A JP S6327538A
- Authority
- JP
- Japan
- Prior art keywords
- thin film
- polyvinyl chloride
- vinyl acetate
- ethylene
- acetate copolymer
- 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
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 28
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 28
- 239000010409 thin film Substances 0.000 title claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 27
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 21
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000003522 acrylic cement Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 abstract description 15
- 238000012546 transfer Methods 0.000 abstract description 5
- 238000011109 contamination Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 abstract 3
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- -1 alkyl isocyanate Chemical class 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QWDQYHPOSSHSAW-UHFFFAOYSA-N 1-isocyanatooctadecane Chemical compound CCCCCCCCCCCCCCCCCCN=C=O QWDQYHPOSSHSAW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 。[Detailed description of the invention] Industrial application field.
本発明は、エチレン−酢酸ビニル共重合体系剥離性処理
剤で処理されてなり、表面保護材や粘着テープにおける
基材あるいは剥離テープなどとして好適なポリ塩化ビニ
ルの薄葉体に関する。The present invention relates to a polyvinyl chloride thin film treated with an ethylene-vinyl acetate copolymer release treatment agent and suitable as a surface protection material, a base material in an adhesive tape, a release tape, etc.
従来の技術及び問題点
従来、ステンレス板等の保護を目的とした表面保護材や
粘着テープにおける基材、あるいは剥離テープなどとし
て、シリコーン系又はポリビニルアルコール−長鎖アル
キルイソシアネート系の剥離性処理剤で処理されてなる
ポリ塩化ビニルの薄葉体が知られていた。Conventional technologies and problems Conventionally, silicone-based or polyvinyl alcohol-long chain alkyl isocyanate-based release agents have been used as surface protection materials for the purpose of protecting stainless steel plates, base materials for adhesive tapes, or release tapes. Thin sheets of processed polyvinyl chloride have been known.
しかしながら、これらの剥離性処理剤で処理されたポリ
塩化ビニルの薄葉体にあっては、その剥離性処理膜がポ
リ塩化ビニルに対する接着性に劣って脱落しやす（、例
えば表面保護材の巻取り物を巻戻す際などのように剥離
性処理面に貼着した粘着剤層を引剥がす際に、剥離性処
理膜がポリ塩化ビニル側より粘着剤側に転写される問題
点かあった。剥離性処理膜の粘着剤側への転写は、粘着
剤面の接着力を低下させる原因となる。加えて、表面保
護材の場合には転写物の残存で被着体が汚染されること
となり、その除去工程が必要になって作業効率を低下せ
しめることとなる。そのため、剥離性処理剤の使用量を
できるだけ少なくして汚染の防止をはかっている実状で
あるが、満足できる解決策とはなっていない。However, in the case of polyvinyl chloride thin sheets treated with these releasable treatment agents, the releasable treatment film has poor adhesion to the polyvinyl chloride and easily falls off (for example, when the surface protection material is rolled up). When peeling off the adhesive layer stuck to the releasable treated surface, such as when unwinding an object, there was a problem that the releasable treated film was transferred from the polyvinyl chloride side to the adhesive side. Transfer of the treated film to the adhesive side causes a decrease in the adhesive strength of the adhesive surface.In addition, in the case of surface protection materials, the adherend may be contaminated by residual transfer material. This requires a removal process, which reduces work efficiency.Therefore, efforts are being made to minimize the amount of stripping agents used to prevent contamination, but this is not a satisfactory solution. Not yet.
問題点を解決するための手段
本発明者らは、上記の転写現象としての脱落問題を克服
し、剥離性処理膜を実用上満足できる接着状態で有する
ポリ塩化ビニルの薄葉体を開発するために鋭意研究を重
ねた結果、エチレン−酢酸ビニル共重合樹脂ないしその
配合物をｉｌｌ ｉ！！性処理剤として用いることによ
りその目的を達成しうろことを見出し、本発明をなすに
至った。Means for Solving the Problems The present inventors have developed a thin film of polyvinyl chloride that overcomes the above-mentioned problem of falling off as a transfer phenomenon and has a peelable treated film in a practically satisfactory adhesion state. As a result of extensive research, ill i! ! It was discovered that the purpose could be achieved by using it as a sex treatment agent, and the present invention was completed.
すなわち、本発明は、エチレン−酢酸ビニル共重合体系
剥離性処理剤で処理されてなることを特徴とするポリ塩
化ビニルの薄葉体を提供するものである。That is, the present invention provides a thin film of polyvinyl chloride, which is characterized by being treated with an ethylene-vinyl acetate copolymer stripping agent.
本発明において用いられるエチレン−酢酸ビニル共重合
体系剥離性処理剤としては、エチレン−酢酸ビニル共重
合樹脂又はこれに他種の剥離性処理剤を配合したものを
あげることができる。Examples of the ethylene-vinyl acetate copolymer release treatment agent used in the present invention include ethylene-vinyl acetate copolymer resins or mixtures thereof with other release treatment agents.
エチレン−酢酸ビニル共重合１樹脂としては、酢酸ビニ
ル含量１２〜６５重量％、殊にエチレン−酢酸ビニル共
重合樹脂の単独系で剥離性処理剤を構成する場合には１
２〜５０重量％、就中１４〜４０重量％、メルトインデ
ックス１−５０
・である゛。酢酸ビニル含量が１２重量％未満であると
ポリ塩化ビニルの薄葉体に対する接着力が不充分・ で
、剥離性処理膜の脱落を伴う場合があり、６５重量％を
超えると剥離性が不充分となる。また、酢酸ビニル含量
が前記範囲外であると得゛られる剥離性処理膜がポリ塩
化ビニル、殊に軟質ポリ塩化ビニルの薄葉体の伸び（通
常、３〜１０％）に対する追随性に劣り、これがため脱
落する場合がある。The ethylene-vinyl acetate copolymer 1 resin has a vinyl acetate content of 12 to 65% by weight, especially when the release treatment agent is composed of the ethylene-vinyl acetate copolymer resin alone.
2 to 50% by weight, especially 14 to 40% by weight, and a melt index of 1 to 50. If the vinyl acetate content is less than 12% by weight, the adhesion of the polyvinyl chloride to the thin film may be insufficient, which may cause the releasable treated film to fall off, and if it exceeds 65% by weight, the releasability may be insufficient. Become. Furthermore, if the vinyl acetate content is outside the above range, the releasable treated film obtained will have poor ability to follow the elongation (usually 3 to 10%) of the thin film of polyvinyl chloride, especially soft polyvinyl chloride. It may fall off.
なお、軟質ポリ塩化ビニルの薄葉体に対しでは酢酸ビニ
ル含量が多いほど接着力に優れるものとすることができ
る。一方、メルトインデックスが前記範囲外のものは塗
工性あるいは形成される！ＩＩ離性処理膜の強度などの
点で好ましくない。Note that the higher the vinyl acetate content, the better the adhesive force for a thin sheet of soft polyvinyl chloride. On the other hand, if the melt index is outside the above range, it will not be easy to coat or form! II is unfavorable in terms of the strength of the releasable film.
エチレン−酢酸ビニル共重合樹脂に配合される他種の剥
離性処理剤としては、ポリビニルアルコール−長鎖アル
キルイソシアネート系のものなどをあげることができる
。これは、例えばポリビニルアルコールと長鎖アルキル
イソシアネートとの反応生成物をケン化する方法（特願
昭６０−第２２７２−４３号）などで得ることができる
。剥離性の向上を目的とする場合における他種の剥離性
処理剤の配合量は、エチレン−酢酸ビニル共重合樹脂１
００重量部あたり５〜３０重量部が適当である。その配
合量が５重量部未満であると配合効果（剥離性の向上）
に乏しいし、３０重量部を超えると他種の剥離性処理剤
に対するエチレン−酢酸ビニル共重合樹脂のバインダー
作用が相対的に低下してポリ塩化ビニルの薄葉体に対す
る接着力が低下し、主に他種の剥離性処理剤の脱落現象
がみられるようになる。従って、表面保護材の場合には
被着体の汚染を惹起する。Other types of releasable treatment agents to be added to the ethylene-vinyl acetate copolymer resin include those based on polyvinyl alcohol-long chain alkyl isocyanate. This can be obtained, for example, by a method of saponifying a reaction product of polyvinyl alcohol and a long-chain alkyl isocyanate (Japanese Patent Application No. 2272-43/1982). When the purpose is to improve the releasability, the amount of other releasability treatment agents is 1 part of the ethylene-vinyl acetate copolymer resin.
5 to 30 parts by weight per 00 parts by weight is suitable. If the amount of the compound is less than 5 parts by weight, the compounding effect (improvement of releasability)
If the amount exceeds 30 parts by weight, the binder action of the ethylene-vinyl acetate copolymer resin against other types of releasable treatment agents will be relatively reduced, and the adhesive strength of polyvinyl chloride to the thin film will be reduced. A phenomenon in which other types of releasable treatment agents come off is observed. Therefore, in the case of a surface protection material, it causes contamination of the adherend.
本発明においてポリ塩化ビニルの薄葉体としては、表面
保護材、粘着テープあるいは剥離テープ等における基材
などとして適用されるものが用いられる。一般には、厚
さ５馴以下のテープ、フィルムないしシートなどが用い
られる。ポリ塩化ビニルの薄葉体は、ポリ塩化ビニルの
みからなるものであってもよいし、例えばポリ塩化ビニ
ルの薄葉体のラミネート体のように積層体ないし複合体
などであってもよい。なお、ポリ塩化ビニルの薄葉体に
設ける剥離性処理剤の層厚は通例であってよい。In the present invention, the polyvinyl chloride thin film used is one that is used as a base material for surface protection materials, adhesive tapes, release tapes, and the like. Generally, a tape, film or sheet having a thickness of 5 mm or less is used. The polyvinyl chloride thin film may be made of only polyvinyl chloride, or may be a laminate or a composite such as a laminate of polyvinyl chloride thin films. Note that the layer thickness of the releasable treatment agent provided on the polyvinyl chloride thin film body may be a customary thickness.
本発明の剥離性処理されたポリ塩化ビニルの薄葉体は、
アクリル系粘着剤に対して優れた剥離性を示すが、適用
可能な粘着剤はこれに限定されない。The releasable polyvinyl chloride thin film body of the present invention is
Although it exhibits excellent releasability to acrylic adhesives, applicable adhesives are not limited thereto.
発明の効果
本発明のポリ塩化ビニルからなる薄葉体は、その剥離性
処理をエチレン−酢酸ビニル共重合体系剥離性処理剤で
行ったので、その処理膜の薄葉体に対する接着力に優れ
ている。その結果、剥離性処理膜の薄葉体からの脱落に
よる粘着剤層への転写、ひいては粘若剤面の接着力低下
、表面保護材の場合の被着体の汚染が有効に防止される
。Effects of the Invention Since the thin film made of polyvinyl chloride of the present invention was subjected to releasability treatment using an ethylene-vinyl acetate copolymer-based releasable treatment agent, the treated film has excellent adhesive strength to the thin film. As a result, transfer to the adhesive layer due to detachment of the releasable treated film from the thin film, a decrease in adhesive strength on the adhesive surface, and contamination of the adherend in the case of a surface protection material are effectively prevented.
また、剥離性処理膜に文字等を書（ことが可能で良好な
印字性を有している。In addition, it is possible to write characters on the removable treated film, and it has good printing properties.
さらに、剥離性処理膜は摩擦係数が大きくて滑りに＜（
、表面保護材とした場合にステンレス板等の被着体の安
定した重ね置きが可能でその保管安全性に優れるなどの
利点も有している。Furthermore, the releasable treated film has a large coefficient of friction, making it difficult to slip.
When used as a surface protection material, it also has the advantage that adherends such as stainless steel plates can be stacked stably and the storage safety thereof is excellent.
実施例
実施例１〜４
酢酸ビニル含量、メルトインデックスの異なる４種のエ
チレン−酢酸ビニル共重合樹脂の１重量％トルエン溶液
を調製し、これを厚さ１２０μｍ１幅１００＋ａｍのポ
リ塩化ビニルフィルムの片面に、固形分塗布量が０．２
ｇ／−となるように均一塗布し、乾燥させて剥離性処
理テープを作製した。Examples Examples 1 to 4 A 1% by weight toluene solution of four types of ethylene-vinyl acetate copolymer resins having different vinyl acetate contents and melt indexes was prepared, and this was applied to one side of a polyvinyl chloride film with a thickness of 120 μm and a width of 100+ am. , solid content coating amount is 0.2
g/- and dried to prepare a releasable treated tape.
実施例５
重合度１４００ 、ケン化度８８％のポリビニルアルコ
ールｔｏｏｉ量部と、オクタデシルイソシアネート５８
０重量部との反応生成物（水酸基含量１％以下）からな
るポリビニルアルコール−長鎖アルキルイソシアネート
系剥離ｉ生処理剤を、実施例４で用いたエチレン−酢酸
ビニル共重合樹脂１００重量部あたり２０重量部配合し
てなる配合系剥離性処理剤を用いたほかは実施例１に準
じて剥離性処理テープを作製した。Example 5 Too many parts of polyvinyl alcohol with a degree of polymerization of 1400 and a degree of saponification of 88% and 58 parts of octadecyl isocyanate
0 parts by weight of polyvinyl alcohol-long chain alkyl isocyanate-based peeling agent consisting of a reaction product (hydroxyl group content of 1% or less) at 20 parts by weight per 100 parts by weight of the ethylene-vinyl acetate copolymer resin used in Example 4. A releasable treated tape was prepared in accordance with Example 1, except that a compounded releasable treatment agent containing the following parts by weight was used.
比較例１
酢酸ビニル含量８重量％、メルトインデックス１．７ｇ
／１０分のエチレン−酢酸ビニル共重合樹脂を用いたほ
かは実施例１に準じて剥離性処理テープを作製した。Comparative Example 1 Vinyl acetate content 8% by weight, melt index 1.7g
A releasable treated tape was prepared in the same manner as in Example 1, except that an ethylene-vinyl acetate copolymer resin of /10 minutes was used.
比較例２
付加型シリコーンエマルジョンからなる剥離性処理剤を
用いたほかは実施例１に準じて剥離性処理テープを作製
した。Comparative Example 2 A releasably treated tape was produced in the same manner as in Example 1, except that a releasably treated agent consisting of an addition type silicone emulsion was used.
比較例３
実施例５で用いたポリビニルアルコール−長鎖アルキル
イソシアネート系剥離性処理剤を単独で使用したほかは
実施例１に準じて剥離性処理テープを作製した。Comparative Example 3 A releasably treated tape was prepared in accordance with Example 1, except that the polyvinyl alcohol-long chain alkyl isocyanate releasable agent used in Example 5 was used alone.
評価試験
実施例及び比較例で得た剥離性処理テープについて下記
の試験を行った。結果を表に示した。The following tests were conducted on the peelable treated tapes obtained in the evaluation test examples and comparative examples. The results are shown in the table.
Ｌ剥離力Ｊ
２ ｋｇのローラを１往復させる方式で、アクリル系粘
着剤層を設けたポリエステル粘着テープ（Ｎｏ。A polyester adhesive tape with an acrylic adhesive layer (No.
３１Ｂ；日東電気工業社製）に試験片をその剥離性処理
面を介して貼着したのち、２０℃下に２４時間保持した
ものにつき１８０度ビール値（２０℃、引張速度３００
ｍｍ／分）を測定した。31B (manufactured by Nitto Electric Industry Co., Ltd.) through its releasable treated surface, and then held at 20°C for 24 hours.
mm/min) was measured.
〔非脱落性］
２０ ｇ ／ ｃｒｉの荷重を負荷したフェルトを載せ
てｌＯ往復させたのちの剥離性処理面につき上記と同様
にして剥離力を測定し、剥離力が増加した場合を×、そ
れ以外の場合を○として評価した。[Non-shedding property] Peeling force was measured in the same manner as above on the peelable treated surface after placing a felt loaded with a load of 20 g/cri and reciprocating 1O, and when the peeling force increased, it was marked as ×. Cases other than the above were evaluated as ○.
［印字性］
剥離性処理面に油性ボールペン及び水性ボールペンで文
字を書き、その文字の鮮明さを目視で判断して、判読が
十分に可能である場合を○、それ以外の場合を×として
評価した。[Printability] Characters are written on the releasable surface with an oil-based ballpoint pen or a water-based ballpoint pen, and the clarity of the characters is visually judged.If the characters are sufficiently legible, the characters are evaluated as ○, otherwise as ×. did.
＊：ＶＡｃ＝酢酸ビニル含量
＊：Ｍ、１．＝メルトインデックス
表より、エチレン−酢酸ビニル共重合体系！ＩＩ ｉ性
処理剤で処理したポリ塩化ビニルからなる実施例の剥離
性処理テープは、非脱落性と印字性の両方を有している
ことがわかる。*:VAc=vinyl acetate content*:M, 1. = From the melt index table, ethylene-vinyl acetate copolymer system! It can be seen that the releasable treated tape of the example made of polyvinyl chloride treated with the II i treatment agent has both non-shedding properties and printability.
Claims (1)
理されてなることを特徴とするポリ塩化ビニルの薄葉体
。 ２、エチレン−酢酸ビニル共重合体系剥離性処理剤がエ
チレン−酢酸ビニル共重合樹脂又はこれに他種の剥離性
処理剤を配合してなるものである特許請求の範囲第１項
記載の薄葉体。 ３、エチレン−酢酸ビニル共重合樹脂における酢酸ビニ
ル含量が１２〜６５重量％である特許請求の範囲第２項
記載の薄葉体。 ４、ポリ塩化ビニルの薄葉体がこれに粘着剤層を設けて
なる表面保護材、粘着テープにおける基材の状態にある
特許請求の範囲第１項記載の薄葉体。 ５、粘着剤層がアクリル系粘着剤からなるものである特
許請求の範囲第４項記載の薄葉体。[Scope of Claims] 1. A polyvinyl chloride thin film treated with an ethylene-vinyl acetate copolymer stripping agent. 2. The thin film body according to claim 1, wherein the ethylene-vinyl acetate copolymer-based releasable treatment agent is an ethylene-vinyl acetate copolymer resin or a mixture thereof with another type of releasable treatment agent. . 3. The thin film body according to claim 2, wherein the vinyl acetate content in the ethylene-vinyl acetate copolymer resin is 12 to 65% by weight. 4. The thin film material according to claim 1, which is a thin film material of polyvinyl chloride provided with an adhesive layer thereon and serves as a base material in a surface protection material or adhesive tape. 5. The thin film body according to claim 4, wherein the adhesive layer is made of an acrylic adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16930286A JPS6327538A (en) | 1986-07-18 | 1986-07-18 | Thin film of polyvinyl chloride subjected to releasing treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16930286A JPS6327538A (en) | 1986-07-18 | 1986-07-18 | Thin film of polyvinyl chloride subjected to releasing treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6327538A true JPS6327538A (en) | 1988-02-05 |
| JPH0416494B2 JPH0416494B2 (en) | 1992-03-24 |
Family
ID=15884008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16930286A Granted JPS6327538A (en) | 1986-07-18 | 1986-07-18 | Thin film of polyvinyl chloride subjected to releasing treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6327538A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123129A (en) * | 1999-10-25 | 2001-05-08 | Nitto Denko Corp | Non-silicone-based peelabie substrate and adhesive sheets |
| WO2008004503A1 (en) * | 2006-07-06 | 2008-01-10 | Nitto Denko Corporation | Release liners, pressure-sensitive adhesive tape, and pressure-sensitive adhesive tape roll |
| JP2015020405A (en) * | 2013-07-23 | 2015-02-02 | 日東電工株式会社 | Multilayer film, and tacky-adhesive tape |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501152A (en) * | 1973-05-02 | 1975-01-08 | ||
| JPS5023057A (en) * | 1973-07-04 | 1975-03-12 | ||
| JPS593227A (en) * | 1982-06-28 | 1984-01-09 | Shimadzu Corp | Direct ratio photometric type spectrophotometer |
-
1986
- 1986-07-18 JP JP16930286A patent/JPS6327538A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501152A (en) * | 1973-05-02 | 1975-01-08 | ||
| JPS5023057A (en) * | 1973-07-04 | 1975-03-12 | ||
| JPS593227A (en) * | 1982-06-28 | 1984-01-09 | Shimadzu Corp | Direct ratio photometric type spectrophotometer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123129A (en) * | 1999-10-25 | 2001-05-08 | Nitto Denko Corp | Non-silicone-based peelabie substrate and adhesive sheets |
| JP4528391B2 (en) * | 1999-10-25 | 2010-08-18 | 日東電工株式会社 | Non-silicone peelable substrates and adhesive sheets |
| WO2008004503A1 (en) * | 2006-07-06 | 2008-01-10 | Nitto Denko Corporation | Release liners, pressure-sensitive adhesive tape, and pressure-sensitive adhesive tape roll |
| JP2008012798A (en) * | 2006-07-06 | 2008-01-24 | Nitto Denko Corp | Release liner, adhesive tape, and adhesive tape-wound body |
| JP2015020405A (en) * | 2013-07-23 | 2015-02-02 | 日東電工株式会社 | Multilayer film, and tacky-adhesive tape |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0416494B2 (en) | 1992-03-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |