JP3668322B2 - Film protection sheet - Google Patents
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- JP3668322B2 JP3668322B2 JP12916696A JP12916696A JP3668322B2 JP 3668322 B2 JP3668322 B2 JP 3668322B2 JP 12916696 A JP12916696 A JP 12916696A JP 12916696 A JP12916696 A JP 12916696A JP 3668322 B2 JP3668322 B2 JP 3668322B2
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- coating film
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Description
【０００１】
【発明の技術分野】
本発明は、塗膜を変質、変色させにくくて、自動車のボディーや部品、塗装鋼板等の表面保護に好適な塗膜保護用シートに関する。
【０００２】
【従来の技術】
塗装を終えた自動車ないしその部品等をトラックや船に荷積して海外等の遠隔地に移送する際などにおける塵や埃、雨等の種々の浮遊物ないし衝突物による塗膜の損傷や艶ボケないし変色等を予防する手段が求められている。
従来、かかる予防手段としてワックスを主成分とする塗膜材料を５〜４０μm厚で塗布したものが知られていた。しかしながら、ワックス塗膜を均一厚に形成することが困難で一様な保護が得られないこと、汚れやすいこと、酸性雨に弱いこと、塗装塗膜にワックス等が浸透して変色等の原因になること、ワックス塗膜の付与とその除去に多大な労力を要し、溶剤の使用や廃液の処理など環境問題を誘発しやすいことなどの問題点があった。
【０００３】
一方、支持基材上に粘着層を設けてなる種々の表面保護用シートが知られており、塗膜を有する被着体用のものとしては、ガラス転移点を低くした放射線硬化粘着剤層やポリイソブチレン等のゴム系粘着剤層を設けたものが提案されている（特開平２−１９９１８４号公報、特開平６−７３３５２号公報）。かかるシート方式によれば前記した問題点は克服しうる。しかしながら、塗膜面を接着保護していた保護用シートを剥がした際に塗膜が変質していたり変色していたりして、容易に除去できない汚損が発生している場合のある問題点があった。
【０００４】
【発明の技術的課題】
本発明者らは、前記の問題点を克服するために鋭意研究を重ねる中で前記した塗膜の変質や変色問題が、塗膜面に保護用シートを接着する際に水分が混入して長期に封入されることが原因であることを究明した。しかし、雨水の如き大粒の水滴で容易に知覚できる水分では事前の払拭処理や、事後の張替処理でその作業手間の増大は格別、水分の長期混入を容易に回避しうるが、霧状の水滴の如き知覚が困難な水分の混入にても同様の塗膜変色等を生じるため水分混入の根絶は困難である。
【０００５】
従って本発明は、水分を含む状態で塗膜面を接着保護して長期に継続しても塗膜の変質や変色を生じず、その保護用シートを剥がすことなくそのまま接着状態を継続できる塗膜保護用シートの開発を課題とする。
【０００６】
【課題の解決手段】
本発明は、支持基材に粘着層を設けてなり、水滴遮蔽性で透湿度が１０〜２０００ｇ／ｍ2・２４時間であることを特徴とする塗膜保護用シートを提供するものである。
【０００７】
【発明の効果】
透湿度を制御した上記構成の塗膜保護用シートにより、水分を含む状態で塗膜面を接着保護しても、その塗膜保護用シートを介し水分が蒸発して揮散し、当該シートの接着状態をそのまま継続しても塗膜の変質や変色を防止でき、従って水分を混入した状態で接着保護しても剥がす必要がなく、張替処理の必要がない塗膜保護用シートを得ることができる。また水滴遮蔽性により、雨水等の浸入を防止することができる。
【０００８】
【発明の実施形態】
本発明の塗膜保護用シートは、支持基材に粘着層を設けてなり、水滴遮蔽性で透湿度が１０〜２０００ｇ／ｍ2・２４時間のものである。混入水分の蒸発性や雨水等の浸入防止などの点より好ましい透湿度は、１５〜１８００ｇ／ｍ2・２４時間、特に２０〜１５００ｇ／ｍ2・２４時間である。
【０００９】
従って支持基材としては、少なくとも前記した透湿度を示す適宜なものが用いられる。好ましくは、５０ｇ／ｍ2・２４時間以上、就中５００〜５００００ｇ／ｍ2・２４時間、特に１０００〜１００００ｇ／ｍ2・２４時間の透湿度を示す水滴遮蔽性のものである。かかる点より好ましく用いうる支持基材は、プラスチックからなる多孔質フィルムである。
【００１０】
多孔質フィルムを形成するプラスチックは、適宜なものであってよく、耐水性等に優れるものが好ましい。ちなみにその例としては、ポリエチレンやポリプロピレンの如きポリオレフィン、ポリエステルやポリウレタン、エチレン・酢酸ビニル共重合体やポリテトラフルオロエチレン、ポリ塩化ビニルやポリ塩化ビニリデン、ポリアミドやアセタール系樹脂、ポリスチレンやポリカーボネートなどがあげられる。
【００１１】
多孔質フィルムは、例えば乳化液等の分散液をキャスティングする方式、フィルムを延伸成形する方式、除去用微粒子混入のフィルムよりその混入微粒子を溶出処理等により除去する方式、フィルムにエンボス加工等の穿孔処理を施す方式、樹脂粉末を加熱下に融着処理する焼結方式などの適宜な方式で形成したものであってよい。混入水分の蒸発性や雨水等の浸入防止などの点よりは、平均孔径が１０μm以下、就中５μm以下、特に０．００１〜２μmのものが好ましい。支持基材の厚さは５〜５００μm以下、就中１０〜３００μm、２０〜２００μmが一般的であるが、これに限定されない。
【００１２】
粘着層の形成には、例えばゴム系やアクリル系などの適宜な粘着剤を用いうる。ゴム系粘着剤では、性能の長期安定性などの点より不飽和結合を有しないか、その含有量の少ないゴム系ポリマーを用いたものが好ましい。そのゴム系ポリマーの例としては、ポリイソブチレンやブチルゴム、あるいはスチレン−エチレン・ブチレン共重合体−スチレンやスチレン−ブタジエン−スチレン、就中その水添処理物からなるＡ−Ｂ−Ａ型ブロックポリマーなどがあげられる。
【００１３】
ゴム系粘着剤の調製に際しては１種又は２種以上のゴム系ポリマーを用いることができる。また粘着特性の制御等を目的に必要に応じて例えばα−ピネンやβ−ピネン重合体、ジテルペン重合体やα−ピネン・フェノール共重合体等のテルペン系樹脂、脂肪族系や芳香族系、脂肪族・芳香族共重合体系等の炭化水素系樹脂、その他、ロジン系樹脂やクマロンインデン系樹脂、（アルキル）フェノール系樹脂やキシレン系樹脂、アルキド系樹脂などの適宜な粘着付与剤を配合することができる。
【００１４】
さらに例えば、ポリイソブチレンに対する低分子量のポリイソブチレンや、Ａ−Ｂ−Ａ型ブロックポリマーに対するパラフィン系オイルなどの如くゴム系ポリマーに応じた適宜な軟化剤も必要に応じ配合して粘着特性等を制御することができる。加えて粘着層、特にゴム系粘着層における透湿度の向上を目的に、例えば吸水性樹脂や乳化剤などの高極性・親水性・吸水性の化合物を配合することもできる。その他、例えば充填剤や顔料、老化防止剤や安定剤などの適宜な添加剤も必要に応じて配合することができる。
【００１５】
一方、粘着層を多孔層として形成する方式にても透湿度の向上を図ることができる。多孔層からなる粘着層の形成は、例えばメルトブロー方式やカーテンスプレ方式等により粘着剤を繊維化してそれを不織布状等に堆積させる方法や、粘着剤を点状等に部分塗工する方法などの適宜な方法にて行うことができる。
【００１６】
塗膜保護用シートの形成は例えば、粘着剤の溶剤による溶液や粘着剤の熱溶融液を支持基材に塗布する方法、セパレータ上に形成した粘着層を移着する方法などの公知の接着シートの形成方法に準じて行うことができる。形成する粘着層の厚さは適宜に決定してよく、一般には２００μm以下、就中５〜５０μmとされる。粘着層は必要に応じて、実用に供されるまでの間、セパレータなどを仮着して保護される。
【００１７】
塗膜保護用シートにおける粘着層は、水滴遮蔽性の点より連続膜構造が好ましいが、前記の如く多孔層とすることもできる。多孔層からなる粘着層の場合にも、その多孔状態により透湿性かつ水滴遮蔽性の粘着層を形成することは可能である。また本発明にては支持基材のみに水滴遮蔽性の機能をもたせる方式にても目的を達成することができる。従って本発明にては、塗膜保護用シートの全体で水滴遮蔽性が達成されていればよい。なお水滴遮蔽性は、雨水等の水滴の浸入を防止する機能を意味し、霧状以下の水分の浸入は許容される。
【００１８】
本発明の塗膜保護用シートは、例えばメラミン・アルキッド系やメラミン・アクリル系、ないしウレタン系などの塗膜で塗装処理された自動車のボディーやその部品、あるいは鋼板等の金属板やその成形品などからなる塗膜を有する被着体に対する微小物の衝突や薬品等からの表面保護などに好ましく用いられる。特に、保護用シートの接着時に水分が混入しやすい場合や、屋外保管等で雨水等がシート・塗膜界面に浸入しやすい場合などに有利に用いることができる。
【００１９】
【実施例】
実施例１
粘度平均分子量が１００万のポリイソブチレン９０部（重量部、以下同じ）と粘度平均分子量が８万のポリイソブチレン１０部の混合物からなるゴム系粘着剤のトルエン溶液をポリエチレンからなる厚さ９０μmで、透湿度が３６００ｇ／ｍ2・２４時間の多孔質フィルム（徳山ソーダ社製、ポーラム＃７０）に塗布し、８０℃で２分間乾燥処理して厚さ１５μmの粘着層を有する塗膜保護用シートを得た。
【００２０】
実施例２
ゴム系粘着剤にアニオン系乳化剤（ドデシルベンゼンスルホン酸ナトリウム）５部を配合したほかは実施例１に準じて塗膜保護用シートを得た。
【００２１】
実施例３
ゴム系粘着剤に脱イオン水吸収能が２００ｇ／ｇで、最大粒径が１０μmの吸水性樹脂（日本触媒社製、アクアリックＣＡ ＭＬ−１００）１０部を配合したほかは実施例１に準じて塗膜保護用シートを得た。
【００２２】
実施例４
ゴム系粘着剤として、スチレン−エチレン・ブチレン共重合体−スチレンからなるＡ−Ｂ−Ａ型ブロックポリマー（シェル化学社製、クレイトンＧ−１６５７）１００部と、水添石油系樹脂（荒川化学社製、アルコンＰ−１００）４０部の混合物からなるものを用いたほかは実施例１に準じて塗膜保護用シートを得た。
【００２３】
実施例５
実施例４で得たゴム系粘着剤をニーダにて１６０℃で混練してそれをチップ化し、そのチップをダイスに入れメルトブロー方式で平均径約２０μmに繊維化してセパレータ上に坪量２０ｇ／ｍ2の多孔層として堆積させた多孔性粘着層を用いたほかは実施例１に準じて塗膜保護用シートを得た。なお前記のメルトブローは、ダイス温度２００℃、熱風温度２１０℃、熱風圧力１．０〜２．０kg／cm2、コンベアによるライン速度３ｍ／分の条件で行った。
【００２４】
比較例１
支持基材に、ポリプロピレン／ポリエチレン（重量比：９／１）からなる厚さ４０μmのフィルム（無多孔物）を用いたほかは実施例１に準じて塗膜保護用シートを得た。
【００２５】
比較例２
比較例１で得た塗膜保護用シートに、直径約０．５mmの貫通孔を６個／cm2の割合で形成した塗膜保護用シートを得た。
【００２６】
評価試験
実施例、比較例で得た塗膜保護用シートについて下記の試験を行った。
透湿度
ＪＩＳ Ｋ ０２０８に準拠して透湿度を調べた。
【００２７】
水分揮散性
鉄板上のメラミン・アクリル塗膜の上に水を吹き付けてその上より塗膜保護用シートを接着し、４０℃で４８時間放置したのち塗膜保護用シートを剥離除去して、塗膜上に水分が残存するか否かを調べた。
【００２８】
水滴遮蔽性
鉄板上のメラミン・アクリル塗膜の上に塗膜保護用シートを直径約１cmの気泡部を作りながら接着し、その上よりシャワー水を１０分間散布して塗膜保護用シートを剥離し、気泡部部分に水が浸入しているか否かを調べた。
【００２９】
前記の結果を次表に示した。
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sheet for protecting a coating film, which makes it difficult to change or discolor a coating film and is suitable for protecting the surface of automobile bodies, parts, coated steel sheets and the like.
[0002]
[Prior art]
Damage or gloss of paint film due to various floating or colliding objects such as dust, dust, rain, etc. when the painted automobile or its parts are loaded on trucks and ships and transferred to remote places such as overseas. Means for preventing blurring or discoloration are required.
Conventionally, as a preventive measure, a coating material containing a wax as a main component and having a thickness of 5 to 40 μm is known. However, it is difficult to form a wax coating with a uniform thickness, so that uniform protection cannot be obtained, it is easy to get dirty, it is vulnerable to acid rain, and the wax penetrates into the paint coating, causing discoloration, etc. In other words, a great deal of labor is required for the application and removal of the wax coating, and environmental problems such as the use of solvents and the treatment of waste liquids are easily induced.
[0003]
On the other hand, various surface protection sheets having an adhesive layer provided on a supporting substrate are known, and for an adherend having a coating film, a radiation-cured adhesive layer having a low glass transition point, There have been proposed those provided with a rubber-based pressure-sensitive adhesive layer such as polyisobutylene (JP-A-2-199184, JP-A-6-73352). According to such a sheet system, the above-mentioned problems can be overcome. However, there is a problem in that when the protective sheet that protects the surface of the coating film is peeled off, the coating film may be altered or discolored, resulting in contamination that cannot be easily removed. It was.
[0004]
[Technical Problem of the Invention]
The inventors of the present invention have made extensive studies to overcome the above-described problems, and the above-mentioned alteration and discoloration problems of the coating film are caused by moisture mixing when the protective sheet is adhered to the coating film surface. It was investigated that it was caused by being sealed in. However, with water that can be easily perceived by large drops of water such as rainwater, the increase in labor is exceptional in advance wiping and subsequent reworking, and long-term contamination of water can be easily avoided. Even if moisture such as water droplets is difficult to perceive, it is difficult to eradicate the water contamination because the same coating discoloration occurs.
[0005]
Accordingly, the present invention provides a coating film that can protect the coating surface in a moisture-containing state and maintain the adhesive state as it is without peeling off the protective sheet even if it is continued for a long time. The challenge is to develop protective sheets.
[0006]
[Means for solving problems]
The present invention provides a sheet for protecting a coating film, which is provided with an adhesive layer on a supporting substrate, has a water droplet shielding property, and has a moisture permeability of 10 to 2000 g / m 2 · 24 hours.
[0007]
【The invention's effect】
Even if the coating film surface is adhesively protected in a state containing moisture, the moisture is evaporated and evaporated through the coating film protection sheet by the coating film protecting sheet having the above-described configuration with controlled moisture permeability, and the adhesion of the sheet Even if the state is continued as it is, the coating film can be prevented from being altered or discolored.Therefore, it is not necessary to peel off even if adhesive protection is performed in the presence of moisture. it can. Moreover, the infiltration of rainwater and the like can be prevented by the water droplet shielding property.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The sheet for protecting a coating film of the present invention is provided with an adhesive layer on a supporting substrate, has a water droplet shielding property, and has a moisture permeability of 10 to 2000 g / m 2 · 24 hours. The moisture permeability is more preferably 15 to 1800 g / m 2 · 24 hours, particularly 20 to 1500 g / m 2 · 24 hours, from the viewpoint of evaporating mixed water and preventing rainwater and the like from entering.
[0009]
Accordingly, as the support base material, an appropriate material showing at least the above-mentioned moisture permeability is used. Preferably, 50g / m 2 · 24 hours or more, especially 500~50000g / m 2 · 24 hours, but the water droplet shielding exhibit particularly moisture permeability of 1000~10000g / m 2 · 24 hours. The support base material which can be preferably used from this point is a porous film made of plastic.
[0010]
The plastic forming the porous film may be an appropriate one, and is preferably excellent in water resistance and the like. Examples include polyolefins such as polyethylene and polypropylene, polyesters and polyurethanes, ethylene / vinyl acetate copolymers and polytetrafluoroethylene, polyvinyl chloride and polyvinylidene chloride, polyamides and acetal resins, polystyrene and polycarbonate, etc. It is done.
[0011]
The porous film is, for example, a method of casting a dispersion such as an emulsion, a method of stretching the film, a method of removing the mixed fine particles from the film mixed with the fine particles for removal by an elution process, and perforation such as embossing on the film. It may be formed by an appropriate method such as a method for performing the treatment or a sintering method in which the resin powder is fusion-treated under heating. From the viewpoint of evaporating mixed water and preventing rainwater and the like from entering, it is preferable that the average pore diameter is 10 μm or less, especially 5 μm or less, especially 0.001 to 2 μm. The thickness of the supporting substrate is generally 5 to 500 μm or less, especially 10 to 300 μm, 20 to 200 μm, but is not limited thereto.
[0012]
For the formation of the pressure-sensitive adhesive layer, for example, a suitable pressure-sensitive adhesive such as rubber or acrylic can be used. The rubber-based pressure-sensitive adhesive preferably uses a rubber-based polymer that does not have an unsaturated bond or has a small content in terms of long-term stability of performance. Examples of the rubber-based polymer include polyisobutylene, butyl rubber, styrene-ethylene-butylene copolymer-styrene, styrene-butadiene-styrene, and in particular, an ABA block polymer composed of a hydrogenated product thereof. Can be given.
[0013]
In preparing the rubber-based pressure-sensitive adhesive, one or two or more rubber-based polymers can be used. Further, for the purpose of controlling the adhesive properties, for example, terpene resins such as α-pinene and β-pinene polymers, diterpene polymers and α-pinene / phenol copolymers, aliphatic and aromatic, Contains appropriate tackifiers such as aliphatic and aromatic copolymer hydrocarbon resins, rosin resins, coumarone indene resins, (alkyl) phenol resins, xylene resins, alkyd resins, etc. can do.
[0014]
In addition, suitable softeners according to rubber polymers such as low molecular weight polyisobutylene for polyisobutylene and paraffinic oil for ABA type block polymer are blended as needed to control adhesive properties. can do. In addition, for the purpose of improving the moisture permeability in the pressure-sensitive adhesive layer, particularly the rubber-based pressure-sensitive adhesive layer, for example, a highly polar, hydrophilic or water-absorbing compound such as a water-absorbing resin or an emulsifier can be blended. In addition, appropriate additives such as fillers, pigments, anti-aging agents and stabilizers can be blended as necessary.
[0015]
On the other hand, the moisture permeability can be improved even when the adhesive layer is formed as a porous layer. The formation of the pressure-sensitive adhesive layer comprising a porous layer includes, for example, a method of fiberizing a pressure-sensitive adhesive by a melt-blow method or a curtain spray method and depositing it on a nonwoven fabric, a method of partially coating a pressure-sensitive adhesive, etc. It can be performed by an appropriate method.
[0016]
Formation of the coating film protective sheet is, for example, a known adhesive sheet such as a method of applying a solution of a pressure-sensitive adhesive or a hot melt of the pressure-sensitive adhesive to a supporting substrate, or a method of transferring a pressure-sensitive adhesive layer formed on a separator. It can carry out according to the formation method. The thickness of the pressure-sensitive adhesive layer to be formed may be appropriately determined, and is generally 200 μm or less, especially 5 to 50 μm. The adhesive layer is protected by temporarily attaching a separator or the like until it is put into practical use, if necessary.
[0017]
The adhesive layer in the coating film protective sheet preferably has a continuous film structure from the viewpoint of water droplet shielding properties, but can also be a porous layer as described above. Even in the case of an adhesive layer composed of a porous layer, it is possible to form a moisture-permeable and water-blocking adhesive layer depending on the porous state. Further, in the present invention, the object can be achieved even by a system in which only the supporting base material has a water droplet shielding function. Therefore, in the present invention, it is sufficient that the water droplet shielding property is achieved in the entire coating film protecting sheet. In addition, water droplet shielding means the function which prevents infiltration of water droplets, such as rain water, and infiltration of the water | moisture content below a mist form is accept | permitted.
[0018]
The sheet for protecting a coating film of the present invention is, for example, an automobile body or part thereof coated with a coating film such as melamine / alkyd system, melamine / acrylic system, or urethane system, or a metal plate such as a steel plate, or a molded product thereof. It is preferably used for collision of minute objects to an adherend having a coating film made of, and the like, surface protection from chemicals and the like. In particular, it can be advantageously used when moisture is likely to be mixed when the protective sheet is adhered, or when rainwater or the like easily enters the sheet / coating film interface during outdoor storage or the like.
[0019]
【Example】
Example 1
A toluene solution of a rubber-based pressure-sensitive adhesive made of a mixture of 90 parts of polyisobutylene having a viscosity average molecular weight of 1 million (parts by weight, the same shall apply hereinafter) and 10 parts of polyisobutylene having a viscosity average molecular weight of 80,000 is made of polyethylene with a thickness of 90 μm. Coating film protective sheet having a pressure-sensitive adhesive layer having a thickness of 15 μm, applied to a porous film having a water vapor permeability of 3600 g / m 2 · 24 hours (Polum # 70, manufactured by Tokuyama Soda Co., Ltd.) and dried at 80 ° C. for 2 minutes. Got.
[0020]
Example 2
A coating film protective sheet was obtained in the same manner as in Example 1 except that 5 parts of an anionic emulsifier (sodium dodecylbenzenesulfonate) was blended with the rubber adhesive.
[0021]
Example 3
According to Example 1, except that 10 parts of water-absorbing resin (Nippon Shokubai Co., Ltd., Aquaric CA ML-100) having a deionized water absorption capacity of 200 g / g and a maximum particle size of 10 μm was blended in the rubber-based adhesive. Thus, a coating film protective sheet was obtained.
[0022]
Example 4
As the rubber-based adhesive, 100 parts of an ABA block polymer composed of styrene-ethylene / butylene copolymer-styrene (manufactured by Shell Chemical Co., Kraton G-1657) and hydrogenated petroleum resin (Arakawa Chemical Co., Ltd.) A sheet for protecting a coating film was obtained in the same manner as in Example 1 except that 40 parts of a mixture made by Alcon P-100) was used.
[0023]
Example 5
The rubber-based pressure-sensitive adhesive obtained in Example 4 was kneaded with a kneader at 160 ° C. to make a chip, and the chip was put into a die and fiberized to an average diameter of about 20 μm by a melt-blow method, and a basis weight of 20 g / m on the separator. A coating film protective sheet was obtained in the same manner as in Example 1 except that the porous adhesive layer deposited as the porous layer 2 was used. The melt blowing was performed under the conditions of a die temperature of 200 ° C., a hot air temperature of 210 ° C., a hot air pressure of 1.0 to 2.0 kg / cm 2 , and a line speed of 3 m / min by a conveyor.
[0024]
Comparative Example 1
A film-protecting sheet was obtained in the same manner as in Example 1 except that a 40 μm-thick film (non-porous material) made of polypropylene / polyethylene (weight ratio: 9/1) was used as the supporting substrate.
[0025]
Comparative Example 2
A coating film protecting sheet was obtained in which through holes having a diameter of about 0.5 mm were formed at a rate of 6 / cm 2 on the coating film protecting sheet obtained in Comparative Example 1.
[0026]
The following test was done about the sheet | seat for coating-film protection obtained by the evaluation test Example and the comparative example.
Moisture permeability The moisture permeability was examined according to JIS K 0208.
[0027]
Water is sprayed onto the melamine / acrylic coating on the water-volatile steel plate, and then the coating-protecting sheet is adhered to it. After leaving at 40 ° C. for 48 hours, the coating-protecting sheet is peeled off and applied. It was examined whether moisture remained on the film.
[0028]
Adhere the film protection sheet on the melamine / acrylic film on the water-shielding iron plate while creating a bubble part with a diameter of about 1 cm, and then spray the shower water for 10 minutes to peel off the film protection sheet. Then, it was examined whether or not water entered the bubble portion.
[0029]
The results are shown in the following table.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12916696A JP3668322B2 (en) | 1996-04-24 | 1996-04-24 | Film protection sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12916696A JP3668322B2 (en) | 1996-04-24 | 1996-04-24 | Film protection sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09291262A JPH09291262A (en) | 1997-11-11 |
| JP3668322B2 true JP3668322B2 (en) | 2005-07-06 |
Family
ID=15002782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12916696A Expired - Fee Related JP3668322B2 (en) | 1996-04-24 | 1996-04-24 | Film protection sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3668322B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007099851A1 (en) | 2006-02-28 | 2007-09-07 | Lintec Corporation | Protective sheet for coating film |
| WO2007099952A1 (en) | 2006-02-28 | 2007-09-07 | Lintec Corporation | Protection sheet for coating film |
| WO2009028455A1 (en) | 2007-08-27 | 2009-03-05 | Lintec Corporation | Releasable adhesive sheet and method for protecting incompletely cured coating film |
| US9200182B2 (en) | 2010-07-28 | 2015-12-01 | Lintec Corporation | Paint coat-protecting removable pressure-sensitive adhesive sheet |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001172588A (en) * | 1999-12-20 | 2001-06-26 | Nitto Denko Corp | Coating film preventive sheet and its preparation method |
| US6686026B2 (en) | 2002-04-08 | 2004-02-03 | 3M Innovative Properties Company | Micro-channeled protective film |
| JP4943646B2 (en) * | 2004-11-19 | 2012-05-30 | 大倉工業株式会社 | Adhesive sheet for moisture-permeable floor curing |
| JP5074701B2 (en) * | 2006-03-30 | 2012-11-14 | リンテック株式会社 | Coating film protection sheet |
| JP2008138066A (en) | 2006-12-01 | 2008-06-19 | Lintec Corp | Removable pressure-sensitive adhesive sheet |
| JP2008138067A (en) | 2006-12-01 | 2008-06-19 | Lintec Corp | Removable pressure-sensitive adhesive sheet |
| JPWO2011052730A1 (en) * | 2009-11-02 | 2013-03-21 | 株式会社トクヤマ | Paint film protection film |
-
1996
- 1996-04-24 JP JP12916696A patent/JP3668322B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007099851A1 (en) | 2006-02-28 | 2007-09-07 | Lintec Corporation | Protective sheet for coating film |
| WO2007099952A1 (en) | 2006-02-28 | 2007-09-07 | Lintec Corporation | Protection sheet for coating film |
| US8574395B2 (en) | 2006-02-28 | 2013-11-05 | Lintec Corporation | Protection sheet for coating film |
| WO2009028455A1 (en) | 2007-08-27 | 2009-03-05 | Lintec Corporation | Releasable adhesive sheet and method for protecting incompletely cured coating film |
| US9200182B2 (en) | 2010-07-28 | 2015-12-01 | Lintec Corporation | Paint coat-protecting removable pressure-sensitive adhesive sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09291262A (en) | 1997-11-11 |
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