JPH07258617A - Coating film-protective film and coating film protecting method - Google Patents
Coating film-protective film and coating film protecting methodInfo
- Publication number
- JPH07258617A JPH07258617A JP5571394A JP5571394A JPH07258617A JP H07258617 A JPH07258617 A JP H07258617A JP 5571394 A JP5571394 A JP 5571394A JP 5571394 A JP5571394 A JP 5571394A JP H07258617 A JPH07258617 A JP H07258617A
- Authority
- JP
- Japan
- Prior art keywords
- film
- coating film
- coating
- pressure
- sensitive adhesive
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、塗膜を一時的に保護す
る塗膜保護フィルム及び塗膜保護方法に関する。例え
ば、塗装完成車を保護フィルムで覆い、車体を一時的に
保護することに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating film protective film for temporarily protecting a coating film and a coating film protecting method. For example, the present invention relates to temporarily protecting a vehicle body by covering a painted vehicle with a protective film.
【０００２】[0002]
【従来の技術】塗装完成車の輸送又は保管中における塗
膜の損傷、ツヤボケ、変色等が問題になっている。この
対策として、従来、塗装完成車にワックスを塗布する方
法がなされてきたが、汚れやすいこと、酸性雨に弱いこ
と及びワックス塗布時又は除去時の環境への悪影響等多
くの欠点を有している。このような問題を解決するた
め、様々な検討がなされてきた。例えば、特開昭５３−
５５２９２号公報には、加熱した熱可塑性樹脂フィルム
で自動車全体を覆い、車体とフィルムとの間を減圧にし
てフィルムを車体へ密着させ、自動車を包装する方法が
開示されている。2. Description of the Related Art Damage, paint loss, discoloration, etc. of a coating film during the transportation or storage of a painted vehicle has become a problem. As a countermeasure against this, a method of applying wax to a finished car has been conventionally used, but it has many drawbacks such as being easily soiled, vulnerable to acid rain, and adversely affecting the environment when wax is applied or removed. There is. Various studies have been made to solve such problems. For example, JP-A-53-
Japanese Patent No. 55292 discloses a method of covering an entire automobile with a heated thermoplastic resin film, reducing the pressure between the vehicle body and the film to bring the film into close contact with the vehicle body, and packaging the automobile.
【０００３】また、特開平２−３００２８１号公報に
は、感圧再剥離型粘着剤層を有するプラスチックフィル
ムの包覆、加熱により、目的とする形状に収縮させた熱
収縮型プラスチックフィルムによる包覆等を行うことで
塗装完成車の塗装面を一時的に保護する方法が開示され
ている。特開平４−５５４８８号公報には、密度０．９
２g/cm3 以下、メルトインデックス１〜２０g/10分のポ
リエチレン又はエチレン−α−オレフィン共重合体で粘
着剤層が形成された表面保護フィルムが開示されてい
る。Further, in Japanese Patent Application Laid-Open No. 2-300281, a plastic film having a pressure-sensitive removable pressure-sensitive adhesive layer is wrapped and covered with a heat-shrinkable plastic film which is shrunk to a desired shape by heating. The method of temporarily protecting the painted surface of the finished painted vehicle by performing the above is disclosed. Japanese Patent Laid-Open No. 4-55488 discloses a density of 0.9.
A surface protective film having a pressure-sensitive adhesive layer formed of polyethylene or an ethylene-α-olefin copolymer having a melt index of 2 g / cm 3 or less and a melt index of 1 to 20 g / 10 min is disclosed.
【０００４】しかし、このような塗膜表面をフィルムで
包覆し、長期間あるいは高温下に放置しておくと、フィ
ルムが塗膜表面に密着した部分とそうでない部分とで、
塗膜表面状態に差が生じ、密着した面の端部が光沢の異
なる模様となって観察されることがしばしばある。However, when such a coating film surface is covered with a film and left for a long period of time or at a high temperature, a portion where the film adheres to the coating film surface and a portion which does not adhere to the coating film surface,
There are often differences in the surface condition of the coating film, and the edges of the adhered surface are often observed as a pattern with different gloss.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、塗装
完成車が輸送又は屋外保管期間中に受ける程度の高温
（約９０℃）下でも、密着程度が極めて小さく、密着し
た面の端部の光沢が異なるような悪影響を及ぼさない塗
膜保護フィルム及び塗膜保護方法を提供することであ
る。SUMMARY OF THE INVENTION An object of the present invention is to obtain a very small degree of adhesion even at a high temperature (about 90 ° C.) that a finished vehicle is subjected to during transportation or outdoor storage, and the end of the adhered surface is very small. It is intended to provide a coating film protective film and a coating film protecting method which do not exert such a bad influence that the gloss of the film is different.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、このため
鋭意検討を重ねた結果、粘着剤層を形成する主成分とし
て、炭素数３〜６の直鎖状α−オレフィンから選ばれる
ポリオレフィンからなる非晶性又は低結晶性の単独重合
体又は共重合体を用いると、塗膜表面に対して良好な感
熱接着性を有し、かつ塗膜表面に対する影響が小さいこ
とを見出し、本発明を完成した。すなわち、本発明は、
基材層フィルムの片面に、炭素数３〜６の直鎖状α−オ
レフィンから選ばれる単量体の単独重合体又は共重合体
で、かつ非晶性又は低結晶性である重合体を含有する粘
着剤層を有することを特徴とする塗膜保護フィルム及び
塗膜表面に粘着剤層が接するように、上記塗膜保護フィ
ルムで覆い、該フィルム端部を塗膜表面に加熱接着させ
て固定する塗膜保護方法、並びに上記粘着剤を、塗膜表
面にホットメルト塗工し、その塗工表面を基材層フィル
ムで覆って該フィルムを該粘着剤に固定させて塗膜表面
を保護することを特徴とする塗膜保護方法である。The inventors of the present invention have made extensive studies for this reason, and as a result, as a main component forming the pressure-sensitive adhesive layer, a polyolefin selected from linear α-olefins having 3 to 6 carbon atoms. It was found that the use of an amorphous or low-crystalline homopolymer or copolymer consisting of has good heat-sensitive adhesiveness to the coating film surface, and has a small effect on the coating film surface. Was completed. That is, the present invention is
One side of the base layer film contains a homopolymer or copolymer of a monomer selected from linear α-olefins having 3 to 6 carbon atoms and a polymer which is amorphous or low crystalline And a coating film protective film characterized by having a pressure-sensitive adhesive layer to be covered with the above-mentioned coating film protective film so that the pressure-sensitive adhesive layer is in contact with the coating film surface, and the film end is fixed by heating and adhering to the coating film surface. The method for protecting a coating film and the above-mentioned pressure-sensitive adhesive are applied to the surface of the coating film by hot-melt coating, the coated surface is covered with a base layer film, and the film is fixed to the pressure-sensitive adhesive to protect the surface of the coating film. This is a method for protecting a coating film.
【０００７】以下、本発明を詳細に説明する。The present invention will be described in detail below.
【０００８】本発明に用いる保護フィルムの基材は特に
種類を限定しないが、コスト的にはポリオレフィン系フ
ィルムが好ましく、中でもポリエチレン、ポリプロピレ
ン又はエチレン−プロピレン共重合体がより好ましい。
また、粘着剤層と接触するフィルム表面は、粘着剤層と
の接着を向上させるために、改質するのが好ましく、こ
のためコロナ処理又は下塗剤が適用される。フィルム基
材の厚さは、１〜１０００μm が適当であり、特に２０
〜５０μm が好ましい。The base material of the protective film used in the present invention is not particularly limited, but a polyolefin film is preferable in terms of cost, and among them, polyethylene, polypropylene or ethylene-propylene copolymer is more preferable.
Also, the film surface in contact with the pressure-sensitive adhesive layer is preferably modified in order to improve the adhesion with the pressure-sensitive adhesive layer, and thus a corona treatment or a primer is applied. The suitable thickness of the film substrate is 1 to 1000 μm, and particularly 20
.About.50 .mu.m is preferred.
【０００９】本発明の粘着剤層を形成する主たる成分
は、炭素数３〜６の直鎖状α−オレフィンから選ばれる
１種又は２種以上の単量体の単独重合体又は共重合体
で、かつ非晶性又は低結晶性の比較的低分子量のオレフ
ィン系重合体である。これら重合体を適当に混合して使
用することが好ましい。塗膜表面に対し、適度の接着性
を有し、剥離した際粘着剤の残留が無く、塗膜面に対し
て影響のない粘着剤としては、密度が０．８５〜０．９
０g/cm3 の範囲の非晶性又は低結晶性オレフィン系共重
合体が好ましい。特に、プロピレン−１−ブテン共重合
体が好ましい。いわゆる、フィルム用途のエチレン−α
−オレフィン又はプロピレン−α−オレフィン共重合体
のような比較的結晶化度が高く、密度が０．９０g/cm3
以上のものでは、塗膜面への接着性は期待できない。な
お、本発明においては非晶性又は低結晶性とは、示差走
差熱量計で測定した融解熱が１cal/g 未満のものをい
う。The main component forming the pressure-sensitive adhesive layer of the present invention is a homopolymer or copolymer of one or more monomers selected from linear α-olefins having 3 to 6 carbon atoms. And an amorphous or low crystalline olefin polymer having a relatively low molecular weight. It is preferable to use these polymers by appropriately mixing them. As a pressure-sensitive adhesive that has appropriate adhesiveness to the surface of the coating film and does not remain on the surface of the coating film when peeled off, the density is 0.85 to 0.9.
Amorphous or low crystalline olefinic copolymers in the range of 0 g / cm 3 are preferred. Particularly, a propylene-1-butene copolymer is preferable. So-called film-use ethylene-α
A relatively high degree of crystallinity such as an olefin or a propylene-α-olefin copolymer and a density of 0.90 g / cm 3
With the above, the adhesiveness to the coating film surface cannot be expected. In the present invention, the term “amorphous or low crystalline” means that the heat of fusion measured by a differential scanning calorimeter is less than 1 cal / g.
【００１０】本発明の粘着剤には、本発明の目的を損な
わない範囲において、凝集力向上のために熱可塑性エラ
ストマーを、接着性向上のためにタッキファイヤーを、
安定性向上のために紫外線防止剤又は酸化防止剤等を、
その他充填剤等の各種添加剤をそれぞれ添加することが
できる。In the pressure-sensitive adhesive of the present invention, a thermoplastic elastomer for improving cohesive strength and a tackifier for improving adhesiveness are used within a range not impairing the object of the present invention.
In order to improve the stability, use an anti-UV agent or an antioxidant,
In addition, various additives such as a filler can be added.
【００１１】本発明の塗膜保護フィルムは、上記粘着剤
を、一般的に粘着テープを製造するのに用いられる塗工
機で、フィルム基材上にコーティングし、粘着剤層を形
成して作製することができる。また、フィルム基材層と
粘着剤層は、インフレーション法やＴダイ法等により共
押出しすることによって、積層フィルムとして調製する
こともできる。粘着剤層の厚さは、１〜１００μm が適
当であり、特に、５〜２０μm が好ましい。本発明の塗
膜保護フィルムを、塗装された塗膜面に適用するには、
塗膜表面に粘着剤層が接するように、塗膜保護フィルム
で覆い、フィルム端部を塗膜表面に加熱接着して保護フ
ィルムを固定させて行う。The coating film protective film of the present invention is produced by coating the above-mentioned pressure-sensitive adhesive on a film substrate with a coating machine generally used for manufacturing a pressure-sensitive adhesive tape to form a pressure-sensitive adhesive layer. can do. The film base material layer and the pressure-sensitive adhesive layer can also be prepared as a laminated film by co-extruding the film substrate layer and the pressure-sensitive adhesive layer by the inflation method or the T-die method. The thickness of the pressure-sensitive adhesive layer is appropriately 1 to 100 μm, and particularly preferably 5 to 20 μm. To apply the coating film protective film of the present invention to a coated coating surface,
The coating layer is covered with a coating film protective film so that the pressure-sensitive adhesive layer is in contact with the coating film surface, and the film edge is heated and adhered to the coating film surface to fix the protective film.
【００１２】また、本発明の粘着剤を塗膜表面にホット
メルト塗工し、その塗工表面を基材層フィルムで覆っ
て、粘着剤塗工表面に固定させて、塗膜表面を保護する
ことができるが、この塗膜保護方法において使用するフ
ィルムは、塗膜表面に対して影響の小さい、例えば、前
記のフィルム基材等を用いるかあるいは密着しないよう
にすることが好ましい。本発明の粘着剤層の第１の目的
は保護する塗膜表面と基材フィルムを加熱接着し、フィ
ルムを塗装面に固定させるものである。第２の目的は、
基材フィルムと塗膜表面が直接接触するのを防ぐ役割を
している。Further, the pressure-sensitive adhesive of the present invention is hot-melt coated on the surface of the coating film, the coated surface is covered with a base layer film, and fixed on the surface of the pressure-sensitive adhesive coating to protect the surface of the coating film. However, it is preferable that the film used in this coating film protection method has a small influence on the coating film surface, for example, the above-mentioned film substrate or the like is used or is not adhered. The first purpose of the pressure-sensitive adhesive layer of the present invention is to heat-bond the coating film surface to be protected and the base film to fix the film to the coated surface. The second purpose is
It plays the role of preventing direct contact between the base film and the coating surface.
【００１３】加熱接着させるための粘着剤の融着温度
は、塗装完成車の塗装面に悪影響を及ぼさない温度、通
常１５０℃以下が望ましい。好ましくは８０〜１３０℃
である。加熱方法としては、加熱プレス等の限定した部
位だけ加熱できる方法が好ましい。The fusing temperature of the pressure-sensitive adhesive for heat-bonding is preferably a temperature which does not adversely affect the coated surface of a finished vehicle, usually 150 ° C. or less. Preferably 80-130 ° C
Is. As a heating method, a method capable of heating only a limited part such as a heating press is preferable.
【００１４】粘着剤を形成する主成分として、炭素数３
〜６の直鎖状α−オレフィンから選ばれる１種又は２種
以上の単量体の単独重合体又は共重合体であり、かつ非
晶性又は低結晶性の重合体を用いると、塗膜表面に対し
て良好な感熱接着性を有し、かつ塗膜面に対する影響が
小さくなる。The main component forming the adhesive has 3 carbon atoms.
~ 6 is a homopolymer or copolymer of one or more kinds of monomers selected from linear α-olefins, and when an amorphous or low crystalline polymer is used, a coating film is obtained. It has good heat-sensitive adhesiveness to the surface and has less influence on the coating surface.
【００１５】[0015]
【実施例】以下に実施例を挙げて本発明を更に具体的に
説明するが、これによって本発明の範囲を限定するもの
ではない。The present invention will be described in more detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.
【００１６】実施例１ 低結晶性の共重合体として、プロピレンと１−ブテンの
共重合体（宇部レキセン社製、商品名：ＡＰＡＯ ＵＴ
２７３０）２０重量部を、トルエン８０重量部に添加し
て混合溶解し、粘着剤溶液を調製した。エチレン−プロ
ピレン共重合体フィルムのコロナ処理面に、粘着剤溶液
を塗工し、厚さ１０μm の粘着剤層を形成して、塗膜保
護フィルムを作製した。この保護フィルムを、塗装完成
車と同様の塗装処理した試験板に貼付し、加熱圧着装置
（富士インパルス社製、商品名：ＰＫ−１０１）を用
い、１kgf/cm2 の圧力で１２０℃、１〜２秒加熱融着さ
せた。そして、この試験板を９０℃の恒温槽に２４時間
静置した後、保護フィルムを剥離し、粘着剤の残留、塗
膜表面の異状（変色、ツヤボケ、はりあと）を観察して
評価した。その結果、粘着剤の残留はなく、塗膜表面の
異状も認められなかった。Example 1 As a low crystalline copolymer, a copolymer of propylene and 1-butene (manufactured by Ube Lexen, trade name: APAO UT
2730) 20 parts by weight was added to 80 parts by weight of toluene and mixed and dissolved to prepare an adhesive solution. A pressure-sensitive adhesive solution was applied to the corona-treated surface of the ethylene-propylene copolymer film to form a pressure-sensitive adhesive layer having a thickness of 10 μm, to prepare a coating film protective film. This protective film is attached to a test plate that has been subjected to the same coating treatment as that for a finished car, and a thermocompression bonding apparatus (Fuji Impulse, trade name: PK-101) is used at a pressure of 1 kgf / cm 2 at 120 ° C. Heat fused for ~ 2 seconds. Then, this test plate was allowed to stand for 24 hours in a constant temperature bath at 90 ° C., then the protective film was peeled off, and the residue of the adhesive and the abnormalities on the surface of the coating film (discoloration, glossiness, post-sticking) were observed and evaluated. As a result, there was no residual adhesive, and no abnormalities on the coating film surface were observed.
【００１７】実施例２ 低結晶性の共重合体として、プロピレンと１−ブテンの
共重合体（ＡＰＡＯＵＴ２７３０）２０重量部及びプロ
ピレンとエチレンの共重合体（宇部レキセン社製、商品
名：ＡＰＡＯ ＵＴ２３８５）２０重量部を、トルエン
１６０重量部に添加して混合溶解し、粘着剤溶液を調製
した。エチレン−プロピレン共重合体フィルムのコロナ
処理面に、粘着剤溶液を塗工し、厚さ１０μm の粘着剤
層を形成して、塗膜保護フィルムを作製した。得られた
塗膜保護フィルムを実施例１と同様に評価した。その結
果、粘着剤の残留はなく、塗膜表面の異状も認められな
かった。Example 2 As a low crystalline copolymer, 20 parts by weight of a copolymer of propylene and 1-butene (APAOUT2730) and a copolymer of propylene and ethylene (manufactured by Ube Lexen, trade name: APAO UT2385). 20 parts by weight was added to 160 parts by weight of toluene and mixed and dissolved to prepare an adhesive solution. A pressure-sensitive adhesive solution was applied to the corona-treated surface of the ethylene-propylene copolymer film to form a pressure-sensitive adhesive layer having a thickness of 10 μm, to prepare a coating film protective film. The coating protective film obtained was evaluated in the same manner as in Example 1. As a result, there was no residual adhesive, and no abnormalities on the coating film surface were observed.
【００１８】実施例３〜１０ 実施例１の配合に、表１に示した熱可塑性エラストマー
１０重量部又はタッキファイヤー２重量部をそれぞれ添
加した以外は実施例１と同様に塗膜保護フィルムを作製
し、評価した。その結果を表２に示した。なお、実施例
１０は、充填剤としてシリカ微粉末４重量部を更に添加
したものである。Examples 3 to 10 A coating film protective film was prepared in the same manner as in Example 1 except that 10 parts by weight of the thermoplastic elastomer or 2 parts by weight of tackifier shown in Table 1 were added to the formulation of Example 1. And evaluated. The results are shown in Table 2. In addition, in Example 10, 4 parts by weight of fine silica powder was further added as a filler.
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【表２】 [Table 2]
【００２１】実施例１１ 低結晶性の共重合体としてプロピレンと１−ブテンの共
重合体（ＡＰＡＯ ＵＴ２７３０）を、アプリケーター
として小型ハンドガンを用い、溶融温度を１４０℃に設
定し、塗装完成車と同様の塗装処理した試験板に幅２０
mm、厚さ約２０μm で塗工した。次にあらかじめ低結晶
性共重合体（宇部レキセン社製、商品名：ＡＰＡＯ Ｕ
Ｔ２２８０）を５μm の厚さで塗工したエチレン−プロ
ピレン共重合体フィルムで試験板を覆い、接着剤とフィ
ルムを圧着した。そして、この試験板を９０℃恒温槽に
２４時間静置した後、保護フィルムを剥離し、粘着剤の
残留、塗装面の異状（変色、ツヤボケ、はりあと）を観
察し、評価した。その結果、粘着剤の残留はなく、塗装
面の異状も認められなかった。Example 11 A copolymer of propylene and 1-butene (APAO UT2730) was used as a low crystalline copolymer, a melting temperature was set to 140 ° C. using a small hand gun as an applicator, and the same as that of a finished vehicle. Width 20 on the test plate that has been painted
mm, thickness about 20 μm. Next, a low crystallinity copolymer (manufactured by Ube Lexen Co., Ltd., trade name: APAO U
The test plate was covered with an ethylene-propylene copolymer film coated with T2280) to a thickness of 5 μm, and the adhesive and the film were pressure-bonded. Then, this test plate was allowed to stand in a 90 ° C. constant temperature bath for 24 hours, then the protective film was peeled off, and the residual adhesive and the irregularity of the coated surface (discoloration, glossiness, post-sticking) were observed and evaluated. As a result, no adhesive remained, and no abnormalities were observed on the coated surface.
【００２２】比較例１〜３ 表３に示した、比較的結晶性が高く、密度が０．９０g/
cm2 以上のフィルム用途のエチレン−プロピレン共重合
体から、Ｔダイ法により厚さ４０μm のフィルムを作製
し、これを塗膜保護フィルムとして実施例１と同様に評
価した。その評価結果を表２に示す。Comparative Examples 1 to 3 As shown in Table 3, the crystallinity is relatively high and the density is 0.90 g /
A film having a thickness of 40 μm was produced from the ethylene-propylene copolymer for film use having a size of cm 2 or more by the T-die method, and the film was evaluated as a coating film protective film in the same manner as in Example 1. The evaluation results are shown in Table 2.
【００２３】[0023]
【表３】 [Table 3]
【００２４】[0024]
【発明の効果】以上のとおり、本発明の塗膜保護フィル
ムは、塗膜表面に対して良好な感熱接着性を有し、かつ
塗膜表面に対する影響が小さいので、塗装完成品の商品
価値を落とすことなく、簡便な方法で塗膜を保護するこ
とができる。As described above, the coating film protective film of the present invention has good heat-sensitive adhesiveness to the coating film surface and has little influence on the coating film surface. The coating film can be protected by a simple method without dropping it.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｊ 123/10 ＪＢＸ 123/20 ＪＢＺ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location C09J 123/10 JBX 123/20 JBZ
Claims (3)
の直鎖状α−オレフィンから選ばれる単量体の単独重合
体又は共重合体で、かつ非晶性又は低結晶性である重合
体を含有する粘着剤層を有することを特徴とする塗膜保
護フィルム。1. A substrate having a carbon number of 3 to 6 on one surface thereof.
A homopolymer or copolymer of a monomer selected from the linear α-olefins, and having a pressure-sensitive adhesive layer containing a polymer that is amorphous or low crystalline Protective film.
項１の塗膜保護フィルムで覆い、該フィルム端部を塗膜
表面に加熱接着させて固定する塗膜保護方法。2. A method for protecting a coating film, which is obtained by covering the surface of the coating film with the coating film protective film according to claim 1 so that the pressure-sensitive adhesive layer is in contact therewith, and fixing the end portion of the film by heating and adhering the film surface.
ら選ばれる単量体の単独重合体又は共重合体であり、か
つ非晶性又は低結晶性である重合体を含有する粘着剤
を、塗膜表面にホットメルト塗工し、その塗工表面を基
材層フィルムで覆って該フィルムを該粘着剤に固定させ
て塗膜表面を保護することを特徴とする塗膜保護方法。3. An adhesive containing a homopolymer or copolymer of a monomer selected from linear α-olefins having 3 to 6 carbon atoms and containing an amorphous or low crystalline polymer. A hot-melt coating agent is applied to the surface of the coating film, the coating surface is covered with a base layer film, and the film is fixed to the adhesive to protect the coating film surface. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5571394A JPH07258617A (en) | 1994-03-25 | 1994-03-25 | Coating film-protective film and coating film protecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5571394A JPH07258617A (en) | 1994-03-25 | 1994-03-25 | Coating film-protective film and coating film protecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07258617A true JPH07258617A (en) | 1995-10-09 |
Family
ID=13006526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5571394A Pending JPH07258617A (en) | 1994-03-25 | 1994-03-25 | Coating film-protective film and coating film protecting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07258617A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009119883A1 (en) * | 2008-03-27 | 2009-10-01 | リンテック株式会社 | Reattachable adhesive sheet |
-
1994
- 1994-03-25 JP JP5571394A patent/JPH07258617A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009119883A1 (en) * | 2008-03-27 | 2009-10-01 | リンテック株式会社 | Reattachable adhesive sheet |
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