JP2002294179A - Double-coated pressure-sensitive adhesive tape for fixing abrasive - Google Patents
Double-coated pressure-sensitive adhesive tape for fixing abrasiveInfo
- Publication number
- JP2002294179A JP2002294179A JP2001093381A JP2001093381A JP2002294179A JP 2002294179 A JP2002294179 A JP 2002294179A JP 2001093381 A JP2001093381 A JP 2001093381A JP 2001093381 A JP2001093381 A JP 2001093381A JP 2002294179 A JP2002294179 A JP 2002294179A
- Authority
- JP
- Japan
- Prior art keywords
- sensitive adhesive
- pressure
- double
- adhesive tape
- polishing
- 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]
【発明の属する技術分野】本発明は、シリコンウエハ
ー、液晶用ガラス、ハードディスク、レンズ等の被研磨
材を研磨する際に研磨材の固定に用いられる両面粘着テ
ープに関し、特に、レンズ等の研磨紙の固定に好適に用
いられる両面粘着テーに関する。尚、本発明の研磨材固
定用両面粘着テープは、所謂粘着フィルムや粘着シート
を包含するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided pressure-sensitive adhesive tape used for fixing a polishing material when polishing a material to be polished such as a silicon wafer, a glass for liquid crystal, a hard disk, a lens, and the like. The present invention relates to a double-sided pressure-sensitive adhesive tape that is suitably used for fixing a tape. The double-sided pressure-sensitive adhesive tape for fixing abrasives of the present invention includes a so-called pressure-sensitive adhesive film or pressure-sensitive adhesive sheet.
【０００２】[0002]
【従来の技術】上記被研磨材の研磨に用いられる研磨材
は、通常、研磨紙、研磨布や研磨パッドの形態で用いら
れる。これを研磨装置の金属製又はセラミック製等の研
磨定盤に固定し、相対する研磨定盤に被研磨材料である
シリコンウエハー、液晶用ガラス、ハードディスク、レ
ンズ等を固定し、例えば、スラリー液の存在下で研磨材
と被研磨材料を圧着し、研磨定盤を回転させ、被研磨材
を研磨する。2. Description of the Related Art Abrasives used for polishing the above-mentioned material to be polished are usually used in the form of polishing paper, polishing cloth or polishing pad. This is fixed to a polishing plate made of metal or ceramic of a polishing apparatus, and a silicon wafer, a glass for liquid crystal, a hard disk, a lens, and the like to be polished are fixed to the opposing polishing plate, for example, a slurry liquid. The abrasive and the material to be polished are pressed in the presence, the polishing platen is rotated, and the material to be polished is polished.
【０００３】従来、合成樹脂フィルム、不織布等からな
る基材の両面に粘着剤層及び離型材がこの順に積層され
てなる両面粘着テープは、上記研磨材の固定用にも使用
されている。このような着テープが一面に貼付された研
磨材は、離型材を剥離して露３した粘着剤層を、例え
ば、ポリッシングマシンの上下一対の研磨定盤における
内側の所定の箇所に貼着し、定盤同士を当接させるよう
にして、シリコンウエハー、ハードディスク、レンズ等
を研磨する方法で使用される。Heretofore, a double-sided pressure-sensitive adhesive tape in which a pressure-sensitive adhesive layer and a release material are laminated in this order on both surfaces of a substrate made of a synthetic resin film, a nonwoven fabric or the like has also been used for fixing the abrasive. The abrasive material having such an adhesive tape adhered to one surface thereof is obtained by attaching an adhesive layer, which has been peeled off and released from the release material, to, for example, a predetermined location inside a pair of upper and lower polishing plates of a polishing machine. It is used in a method of polishing a silicon wafer, a hard disk, a lens, and the like so that the platens are brought into contact with each other.
【０００４】例えば、レンズ等の研磨に用いられる研磨
紙は、両面粘着テープと貼り合わされて、例えば所望の
形状に打ち抜かれた後、上記研磨定盤に貼着されてレン
ズ等を研磨し、研磨紙が或る程度磨り減った段階でテー
プと共に剥がされ、新しい研磨紙と交換される。For example, abrasive paper used for polishing a lens or the like is bonded to a double-sided adhesive tape, punched into a desired shape, for example, and then adhered to the polishing platen to polish the lens and the like. When the paper has worn to some extent, it is peeled off with the tape and replaced with fresh abrasive paper.
【０００５】この様な研磨材固定用両面粘着テープは、
従来、不織布やポリエチレンテレフタレート（ＰＥＴ）
などの固いフィルムの両面に厚さ約０．０２〜０．１０
ｍｍの粘着剤層を形成したものが用いられていたが、粘
着剤としてはコスト及び品質安定性の面からアクリル系
粘着剤が汎用されていた。しかし、アクリル系粘着剤を
両面粘着テープの粘着剤層として塗工する場合は、溶剤
型もしくはエマルジョン型の粘着剤を塗工で塗工乾燥し
て生産されるが、上記厚みの粘着剤層を形成するには、
塗工量が非常に多くなるために乾燥させる溶剤や水の量
も必然的に多くなり、その結果生産性が低いという問題
点があった。[0005] Such a double-sided adhesive tape for fixing abrasives,
Conventionally, non-woven fabric or polyethylene terephthalate (PET)
About 0.02-0.10 on both sides of a hard film such as
Although a pressure-sensitive adhesive layer having a thickness of 0.1 mm was used, an acrylic pressure-sensitive adhesive was widely used as a pressure-sensitive adhesive in terms of cost and quality stability. However, when applying an acrylic pressure-sensitive adhesive as a pressure-sensitive adhesive layer of a double-sided pressure-sensitive adhesive tape, it is produced by coating and drying a solvent-type or emulsion-type pressure-sensitive adhesive. To form
Since the coating amount is very large, the amount of the solvent and water to be dried is inevitably increased, resulting in a problem that the productivity is low.
【０００６】一方、研磨材固定用両面粘着テープに要求
される特性としては、研磨時に研磨定盤に接着する粘着
力と、研磨材の交換時に糊残り現象を生じたり基材が破
断しない再剥離性が挙げられていたが、これらの特性を
満足していても、レンズの被研磨面が滑らかに仕上らな
い場合があるという問題点があった。このような問題点
に対し、例えば、研磨材の有する硬度を特定することに
より、レンズ等の被研磨面の仕上りを良好にする試みが
提案されている（特開平５−５７６２２号公報参照）。On the other hand, the properties required of the double-sided adhesive tape for fixing abrasives include the adhesive force that adheres to the polishing platen during polishing, and the re-peeling that causes no adhesive residue or substrate breakage when replacing the abrasive. However, even if these properties are satisfied, there is a problem that the polished surface of the lens may not be finished smoothly. To solve such problems, for example, an attempt has been made to improve the finish of a surface to be polished such as a lens by specifying the hardness of the abrasive (see Japanese Patent Application Laid-Open No. 5-57622).
【０００７】[0007]
【発明が解決しようとする課題】しかし、本発明者の検
討によれば、レンズの被研磨面の良好な仕上り状態を確
保するには、単に研磨材の弾性等を特定するだけでは不
十分であって、本発明者は粘着剤層も含めた両面粘着テ
ープ全体の弾性が研磨の仕上りに対する重要な要素であ
るとの知見を得て本発明を完成した。本発明は、上記従
来の研磨材固定用両面粘着テープの問題点に鑑み、適度
の粘着力と、再剥離性を備えるとともに、レンズ等の被
研磨材が滑らかに研磨され得るような研磨材固定用両面
粘着テープを提供することを目的とする。However, according to the study of the present inventors, it is not enough to simply specify the elasticity or the like of the abrasive to secure a good finished state of the surface to be polished of the lens. The present inventor has found that the elasticity of the entire double-sided pressure-sensitive adhesive tape including the pressure-sensitive adhesive layer is an important factor for the polishing finish, and has completed the present invention. The present invention has been made in view of the above problems of the conventional double-sided adhesive tape for fixing abrasives, and has an appropriate adhesive force and removability, and also has an abrasive fixing such that a material to be polished such as a lens can be polished smoothly. The purpose of the present invention is to provide a double-sided adhesive tape for use.
【０００８】[0008]
【課題を解決するための手段】この目的を達成するため
に、本発明は、厚さが０．２〜０．５ｍｍで弾性率が１
５０〜１５００ＭＰａのフィルムからなる基材の両面
に、厚さが０．０２〜０．０７ｍｍの粘着剤層が設けら
れ、弾性率が２００〜２０００ＭＰａである研磨材固定
用両面粘着テープを提供する。In order to achieve this object, the present invention relates to a method for producing a thin film having a thickness of 0.2 to 0.5 mm and an elastic modulus of 1 to 0.5 mm.
An adhesive layer having a thickness of 0.02 to 0.07 mm is provided on both surfaces of a substrate made of a film of 50 to 1500 MPa and an elastic modulus of 200 to 2000 MPa is provided.
【０００９】基材を構成するフィルムの材質は、上記弾
性率を満たすものであれば特に限定されないが、例え
ば、ポリエチレン、ポリプロピレン、エチレン−酢酸ビ
ニル共重合体、軟質ポリ塩化ビニル、ポリウレタン、ポ
リエチレンテレフタレート（ＰＥＴ）に代表されるポリ
エステル等からなる合成樹脂フィルムや、不織布、織
布、セロハン、上質紙、クラフト紙、グラシン紙、コー
ト紙、キャストコート紙、樹脂含浸紙、金属箔ラミネー
トフィルム、金属蒸着フィルム等が挙げられる。[0009] The material of the film constituting the substrate is not particularly limited as long as it satisfies the above-mentioned elastic modulus. For example, polyethylene, polypropylene, ethylene-vinyl acetate copolymer, soft polyvinyl chloride, polyurethane, polyethylene terephthalate (PET) synthetic resin film, such as polyester, non-woven fabric, woven fabric, cellophane, woodfree paper, kraft paper, glassine paper, coated paper, cast-coated paper, resin-impregnated paper, metal foil laminate film, metal deposition Films and the like.
【００１０】特に、研磨紙固定用両面粘着テープとして
用いる場合は、弾性の異なる樹脂により多層化すると、
硬い層で研磨時の強度を確保し、柔軟な層で全体の弾性
をコントロールできるので好ましく、例えば、ポリプロ
ピレンフィルムの如く硬い層とエチレン−酢酸ビニル共
重合体フィルムの如く柔らかい層とからなる多層フィル
ムの場合は、両者の厚さの比は１：０．５〜１：４程度
が好ましい。Particularly, when used as a double-sided pressure-sensitive adhesive tape for fixing abrasive paper, it is preferable to form a multilayer structure using resins having different elasticities.
It is preferable because a hard layer secures the strength at the time of polishing and a flexible layer can control the entire elasticity. For example, a multilayer film composed of a hard layer such as a polypropylene film and a soft layer such as an ethylene-vinyl acetate copolymer film In this case, the thickness ratio between the two is preferably about 1: 0.5 to 1: 4.
【００１１】基材としてのフィルムは、厚さが０．２〜
０．５ｍｍで弾性率が１５０〜１５００ＭＰａとされ
る。基材フィルムの厚さや弾性率がこの範囲外である
と、一般的な粘着剤層を両面に設けて本発明の粘着テー
プを得ようとしても、テープ全体の弾性率が所定の範囲
となり難いからである。The film as the substrate has a thickness of 0.2 to
The elastic modulus is set to 150 to 1500 MPa at 0.5 mm. If the thickness and elastic modulus of the base film are out of this range, even if it is intended to obtain a pressure-sensitive adhesive tape of the present invention by providing a general pressure-sensitive adhesive layer on both surfaces, the elastic modulus of the entire tape is hardly in a predetermined range. It is.
【００１２】基材フィルムの両面に設けられる粘着剤層
の厚さは、各々０．０２〜０．０７ｍｍとされる。この
範囲の厚さにすることにより、例えば、汎用されるアク
リル系粘着剤を用いる場合でも工業的生産性を確保でき
るとともに、テープ全体の弾性率を所定の範囲とするこ
とができる。The thickness of each of the pressure-sensitive adhesive layers provided on both sides of the base film is 0.02 to 0.07 mm. By setting the thickness in this range, for example, even when a commonly used acrylic pressure-sensitive adhesive is used, industrial productivity can be ensured, and the elastic modulus of the entire tape can be set in a predetermined range.
【００１３】本発明のテープは、全体の弾性率が２００
〜２０００ＭＰａとされ、２００ＭＰａ未満では、被研
磨表面は鏡面になるものの、面全体の平坦度が安定しな
い。一方、２０００ＭＰａを越えると研磨中に微小な傷
（スクラッチ）が付いて研磨の仕上がり度が安定せず、
いずれにしても、レンズ等の被研磨面の仕上りが良好な
ものとならない。The tape of the present invention has an overall elastic modulus of 200.
If it is less than 200 MPa, the surface to be polished becomes a mirror surface, but the flatness of the entire surface is not stable. On the other hand, if it exceeds 2,000 MPa, fine scratches (scratch) are generated during polishing, and the finished degree of polishing is not stable.
In any case, the finish of the surface to be polished such as a lens is not good.
【００１４】基材フィルムには、粘着着剤との密着性を
向上させるために、例えば、コロナ放電処理等の下地処
理（前処理）が施されていても良い。The base film may be subjected to a base treatment (pretreatment) such as a corona discharge treatment in order to improve the adhesion to the adhesive.
【００１５】本発明においては、粘着剤層を構成する粘
着剤は特に限定されないが、上記基材に対する密着性、
塗工性、耐候性、耐久性等に優れ、取扱い時の汚れも少
ないため、アクリル系粘着剤（アクリル系樹脂からなる
もの）が好ましく用いられ、また、ゴム系粘着剤も使用
可能である。In the present invention, the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer is not particularly limited.
Acrylic pressure-sensitive adhesives (those made of acrylic resin) are preferably used because they are excellent in coating properties, weather resistance, durability, etc., and have little stain during handling, and rubber-based pressure-sensitive adhesives can also be used.
【００１６】上記アクリル系樹脂としては、例えば、ア
ルキル基の炭素数が１〜１２のアルキル基を有するアル
コールの（メタ）アクリル酸エステルモノマー、好まし
くは炭素数が４〜１２のアルキル基を有する（メタ）ア
クリル酸エステルモノマーの単独重合体もしくは（メ
タ）アクリル酸エステルモノマー同士の共重合体、又は
上記（メタ）アクリル酸エステルモノマーと該（メタ）
アクリル酸エステルモノマーと共重合可能な重合性モノ
マーとの共重合体等を主成分としてなるものが挙げられ
る。尚、本発明で言う（メタ）アクリレートとはアクリ
レートまたはメタクリレートを意味する。As the acrylic resin, for example, a (meth) acrylate monomer of an alcohol having an alkyl group having 1 to 12 carbon atoms, preferably having an alkyl group having 4 to 12 carbon atoms ( A homopolymer of a (meth) acrylate monomer or a copolymer of (meth) acrylate monomers, or the (meth) acrylate monomer and the (meth) acrylate
Examples include those containing, as a main component, a copolymer of an acrylic acid ester monomer and a polymerizable monomer copolymerizable therewith. In addition, (meth) acrylate referred to in the present invention means acrylate or methacrylate.
【００１７】上記アルキル基の炭素数が４〜１２のアル
キル基を有する（メタ）アクリル酸エステルモノマーと
しては、特に限定されず、例えば、（メタ）アクリル酸
ｎーブチル、（メタ）アクリル酸２ーエチルヘキシル、
（メタ）アクリル酸イソオクチル、（メタ）アクリル酸
ｎーオクチル、（メタ）アクリル酸イソノニル、（メ
タ）アクリル酸ラウリル等を挙げることができる。これ
らは、単独で、又は組み合わせて用いることができる
が、得られる粘着剤の粘着性や、粘着力と凝集性とのバ
ランスに優れたものとするために、通常、ホモポリマー
のガラス転移温度（Ｔｇ）がー５０℃以下の（メタ）ア
クリル酸アルキルエステルを主成分とし、更に、（メ
タ）アクリル酸メチル、（メタ）アクリル酸エチル等の
低級のアルコールの（メタ）アクリル酸エステルを併用
することが好ましい。The (meth) acrylate monomer having an alkyl group having 4 to 12 carbon atoms in the alkyl group is not particularly limited, and examples thereof include n-butyl (meth) acrylate and 2- (meth) acrylate. Ethylhexyl,
Examples thereof include isooctyl (meth) acrylate, n-octyl (meth) acrylate, isononyl (meth) acrylate, and lauryl (meth) acrylate. These can be used alone or in combination. However, in order to obtain a good balance between the adhesiveness of the resulting pressure-sensitive adhesive and the adhesive strength and cohesiveness, the glass transition temperature of the homopolymer is usually used. (Tg) whose main component is an alkyl (meth) acrylate having a temperature of -50 ° C or lower, and further used together with a (meth) acrylate of a lower alcohol such as methyl (meth) acrylate and ethyl (meth) acrylate. Is preferred.
【００１８】また、これらのビニルモノマー以外のこれ
らと共重合可能なモノマーとしては、（メタ）アクリル
酸、マレイン酸、フマル酸、イタコン酸等のカルボキシ
ル基含有モノマー又はその無水物や２−ヒドロキシエチ
ル（メタ）アクリレート、４−ヒドロオキシブチルアク
リレート、ポリオキシエチレン（メタ）アクリレート、
ポリオキシプロピレン（メタ）アクリレート、カプロラ
クトン変成（メタ）アクリレート等の水酸基含有モノマ
ー等が挙げられる。The monomers copolymerizable with these other than the vinyl monomers include carboxyl group-containing monomers such as (meth) acrylic acid, maleic acid, fumaric acid, and itaconic acid, anhydrides thereof, and 2-hydroxyethyl. (Meth) acrylate, 4-hydroxybutyl acrylate, polyoxyethylene (meth) acrylate,
Examples include hydroxyl group-containing monomers such as polyoxypropylene (meth) acrylate and modified caprolactone (meth) acrylate.
【００１９】上記粘着剤は、例えばイソシアネート系や
エポキシ系の、架橋剤を含有して粘着力が調節されてい
るものであってもよい。架橋剤の含有量は特に限定され
るものではなく、通常、粘着剤中の上記アクリルル系樹
脂に対して０．５〜４．０重量％、例えば、２−ヒドロ
キシアクリレートを構成単位として２重量％含むアクリ
ルル系共重合体に対して０．５〜４．０重量％程度配合
される。The pressure-sensitive adhesive may be, for example, an isocyanate-based or epoxy-based cross-linking agent having a controlled adhesive strength. The content of the crosslinking agent is not particularly limited, and is usually 0.5 to 4.0% by weight based on the acryl-based resin in the pressure-sensitive adhesive, for example, 2% by weight based on 2-hydroxyacrylate as a structural unit. About 0.5 to 4.0% by weight of the acrylyl copolymer is contained.
【００２０】また、上記粘着剤中には、さらに必要に応
じて、粘着性付与剤、無機もしくは有機充填剤、酸化防
止剤（老化防止剤）、熱安定剤、光安定剤、紫外線吸収
剤等各種の添加剤が添加されていても良い。In the above-mentioned pressure-sensitive adhesive, if necessary, a tackifier, an inorganic or organic filler, an antioxidant (anti-aging agent), a heat stabilizer, a light stabilizer, an ultraviolet absorber, etc. Various additives may be added.
【００２１】特に、例えば研磨材の貼り合わせ面となる
側の、接着性を高めたい場合は、熱活性のアクリル系接
着剤層、所謂ホットメルト接着剤層等を設けてもよい。In particular, when it is desired to enhance the adhesiveness on the side to be bonded to the abrasive, for example, a heat-active acrylic adhesive layer, a so-called hot melt adhesive layer, may be provided.
【００２２】粘着剤層に対し、一般に貼着される離型材
としては、特に限定されず、例えば、シリコーン樹脂系
離型剤や長鎖アルキル基ペンダント型グラフトポリマー
系離型剤等により、紙やプラスチックフィルム等の少な
くとも片面に離型処理を施して得られる離型紙や離型フ
ィルム等が挙げられる。The release material generally adhered to the pressure-sensitive adhesive layer is not particularly limited. For example, a silicone resin-based release agent or a long-chain alkyl group pendant graft polymer-based release agent may be used to remove paper or paper. A release paper or a release film obtained by subjecting at least one surface of a plastic film or the like to a release treatment is exemplified.
【００２３】[0023]
【発明の実施の形態】以下、本発明の実施例及び比較例
を示す。 （実施例１）ポリプロピレンとエチレン−酢酸ビニル共
重合体の多層共押出し複層フィルム（厚さ０．３ｍｍ、
厚さの比、ポリプロピレン：エチレン−酢酸ビニル共重
合体として、１：２．５程度、弾性率２００ＭＰａ、ア
キレス社製、商品名Ｐｏｖｉｃ−Ｔ）を基材として、両
面に、各々厚さ０．０５ｍｍのアクリル系粘着剤層（積
水化学工業社製の「ＷＨＤ」糊と日本ポリウレタン社製
の架橋剤「コロネートＬ−５５Ｅ」とからなるもの）を
設けた、両面粘着テープを用意した。この両面粘着テー
プの弾性率は２００ＭＰａであり、以下に示す通り、研
磨紙に貼着してレンズ研磨装置にてレンズを研磨したと
ころ、被研磨表面の仕上り状態は良好であった。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples and comparative examples of the present invention are shown below. Example 1 Multi-layer co-extruded multilayer film of polypropylene and ethylene-vinyl acetate copolymer (thickness 0.3 mm,
Thickness ratio, about 1: 2.5 as a polypropylene: ethylene-vinyl acetate copolymer, an elastic modulus of 200 MPa, trade name Povic-T manufactured by Achilles Co., Ltd. A double-sided pressure-sensitive adhesive tape provided with a 05 mm acrylic pressure-sensitive adhesive layer (composed of “WHD” paste manufactured by Sekisui Chemical Co., Ltd. and a cross-linking agent “Coronate L-55E” manufactured by Nippon Polyurethane) was prepared. The modulus of elasticity of this double-sided pressure-sensitive adhesive tape was 200 MPa. As shown below, when the lens was polished with a lens polisher by attaching to a polishing paper, the finished state of the surface to be polished was good.
【００２４】（実施例２）ポリプロピレンとエチレン−
酢酸ビニル共重合体の共押出し多層フィルム（厚さ０．
２ｍｍ、厚さの比、前記順に１：３．５程度、弾性率４
００ＭＰａ、オカモト社製、商品名エコロフィンスーパ
ー）を基材として、両面に、各々厚さ０．０５ｍｍのア
クリル系粘着剤層（積水化学工業社製の「ＷＨＤ」糊と
日本ポリウレタン社製の架橋剤「コロネートＬ−５５
Ｅ」とからなるもの）を設けた、両面粘着テープを用意
した。この両面粘着テープの弾性率は４２０ＭＰａであ
り、以下に示す通り、研磨紙に貼着してレンズ研磨装置
にてレンズを研磨したところ、被研磨表面の仕上り状態
は良好であった。(Example 2) Polypropylene and ethylene-
Coextruded multilayer film of vinyl acetate copolymer (thickness 0.
2 mm, thickness ratio, about 1: 3.5 in the above order, elastic modulus 4
Acrylic pressure-sensitive adhesive layers with a thickness of 0.05 mm on each side (“WHD” glue manufactured by Sekisui Chemical Co., Ltd. and cross-linked made by Nippon Polyurethane Co., Ltd.) Agent "Coronate L-55
E ") was prepared. The elastic modulus of this double-sided pressure-sensitive adhesive tape was 420 MPa. As shown below, when the lens was polished with a lens polishing device after being adhered to polishing paper, the finished state of the surface to be polished was good.
【００２５】（比較例１）ポリエチレンテレフタレート
フィルム（厚さ０．２ｍｍ、弾性率８０００ＭＰａ、三
菱樹脂社製、商品名ダイアラミー）を基材として、両面
に、各々厚さ０．０５ｍｍのアクリル系粘着剤層（積水
化学工業社製の「ＷＨＤ」糊と日本ポリウレタン社製の
架橋剤「コロネートＬ−５５Ｅ」とからなるもの）を設
けた、両面粘着テープを用意した。この両面粘着テープ
の弾性率は８０００ＭＰａであり、以下に示す通り、研
磨紙に貼着してレンズ研磨装置にてレンズを研磨したと
ころ、レンズの表面に微細な傷が無数に生じて平滑な表
面が確保されず、被研磨表面の仕上り状態は良好とは言
えないものであった。(Comparative Example 1) An acrylic pressure-sensitive adhesive having a thickness of 0.05 mm on both sides using a polyethylene terephthalate film (thickness 0.2 mm, elastic modulus 8000 MPa, manufactured by Mitsubishi Plastics Co., Ltd., trade name: Diaramy) as a base material A double-sided pressure-sensitive adhesive tape provided with a layer (consisting of "WHD" glue manufactured by Sekisui Chemical Co., Ltd. and a crosslinking agent "Coronate L-55E" manufactured by Nippon Polyurethane) was prepared. The elastic modulus of this double-sided pressure-sensitive adhesive tape was 8000 MPa, and as shown below, when the lens was polished with a lens polishing device after being adhered to polishing paper, a myriad of fine scratches were generated on the surface of the lens, resulting in a smooth surface. Was not secured, and the finished state of the polished surface was not good.
【００２６】〔弾性率の測定方法〕基材又は両面粘着テ
ープの弾性率は、ＡＳＴＭ Ｄ８８２に準拠して測定し
た。[Measurement Method of Elastic Modulus] The elastic modulus of the substrate or the double-sided pressure-sensitive adhesive tape was measured according to ASTM D882.
【００２７】〔研磨紙〕２ｄのナイロン繊維と１．５ｄ
のレーヨン繊維を略同じ割合で混用してなる、目付７０
ｇ／ｍ、厚さ０．３５ｍｍの不織布の表面に、砥粒を固
着して研磨紙（研磨用不織布）とした。 〔レンズの研磨〕研磨紙に貼着した両面テープの他面を
ポリッシングマシンの上下一対の研磨定盤のホルダーに
取り付け、相対する研磨定盤に被研磨材料であるレンズ
を固定し、研磨液の存在下で研磨材とレンズを圧着し、
研磨定盤を回転させることによりレンズを研磨した。[Abrasive paper] 2d nylon fiber and 1.5d
Of rayon fiber in approximately the same ratio.
Abrasive grains were fixed to the surface of a non-woven fabric having a thickness of 0.35 mm and g / m to obtain abrasive paper (non-woven fabric for polishing). [Polishing the lens] The other side of the double-sided tape attached to the polishing paper is attached to a pair of upper and lower polishing table holders of the polishing machine, and the lens to be polished is fixed to the opposing polishing table, and the polishing liquid Pressing the abrasive and lens in the presence,
The lens was polished by rotating the polishing platen.
【００２８】[0028]
【発明の効果】本発明の粘着テープは、従来から研磨材
固定用として要請される適度の粘着力と、再剥離性とを
備えるとともに、厚さと弾性率が特定された基材フィル
ムの両面に厚さが特定された粘着剤層が設けられ、弾性
率が特定されてなるので、本発明の研磨材固定用両面粘
着テープを用いることによって、レンズ等の被研磨材の
研磨仕上がり状態を滑らかな良好なものとすることが可
能である。The pressure-sensitive adhesive tape of the present invention has an appropriate adhesive force conventionally required for fixing abrasives and removability, and can be applied to both sides of a base film having a specified thickness and elastic modulus. Since the pressure-sensitive adhesive layer having the specified thickness is provided and the elastic modulus is specified, the use of the double-sided pressure-sensitive adhesive tape for fixing abrasives of the present invention makes it possible to smooth the polishing finish of the material to be polished such as a lens. It can be good.
Claims (1)
５０〜１５００ＭＰａのフィルムからなる基材の両面
に、厚さが０．０２〜０．０７ｍｍの粘着剤層が設けら
れ、弾性率が２００〜２０００ＭＰａであることを特徴
とする研磨材固定用両面粘着テープ。1. A thickness of 0.2 to 0.5 mm and an elastic modulus of 1
A double-sided adhesive for fixing abrasives, characterized in that a pressure-sensitive adhesive layer having a thickness of 0.02 to 0.07 mm is provided on both surfaces of a substrate made of a film of 50 to 1500 MPa and an elastic modulus is 200 to 2000 MPa. tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001093381A JP2002294179A (en) | 2001-03-28 | 2001-03-28 | Double-coated pressure-sensitive adhesive tape for fixing abrasive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001093381A JP2002294179A (en) | 2001-03-28 | 2001-03-28 | Double-coated pressure-sensitive adhesive tape for fixing abrasive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002294179A true JP2002294179A (en) | 2002-10-09 |
Family
ID=18947720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001093381A Pending JP2002294179A (en) | 2001-03-28 | 2001-03-28 | Double-coated pressure-sensitive adhesive tape for fixing abrasive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002294179A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007132881A1 (en) * | 2006-05-17 | 2007-11-22 | Sekisui Chemical Co., Ltd. | Double sided adhesive tape for fixing polishing pad |
| JP2016117854A (en) * | 2014-12-22 | 2016-06-30 | リンテック株式会社 | Pressure-sensitive adhesive sheet |
| US11207855B2 (en) * | 2016-06-17 | 2021-12-28 | Essilor International | Machine and method for manufacturing an ophthalmic article by casting |
-
2001
- 2001-03-28 JP JP2001093381A patent/JP2002294179A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007132881A1 (en) * | 2006-05-17 | 2007-11-22 | Sekisui Chemical Co., Ltd. | Double sided adhesive tape for fixing polishing pad |
| JP5134533B2 (en) * | 2006-05-17 | 2013-01-30 | 積水化学工業株式会社 | Double-sided tape for fixing polishing pad |
| JP2016117854A (en) * | 2014-12-22 | 2016-06-30 | リンテック株式会社 | Pressure-sensitive adhesive sheet |
| US11207855B2 (en) * | 2016-06-17 | 2021-12-28 | Essilor International | Machine and method for manufacturing an ophthalmic article by casting |
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