JPH1076572A - Fluororesin sheet - Google Patents
Fluororesin sheetInfo
- Publication number
- JPH1076572A JPH1076572A JP8232200A JP23220096A JPH1076572A JP H1076572 A JPH1076572 A JP H1076572A JP 8232200 A JP8232200 A JP 8232200A JP 23220096 A JP23220096 A JP 23220096A JP H1076572 A JPH1076572 A JP H1076572A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- fluororesin sheet
- glass
- fluororesin
- range
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガラスと貼り合わ
せたときの外観が良い、貼り合わせ可能なフッ素樹脂シ
ートに関し、さらに詳しくは、フッ素樹脂シートとガラ
スとを貼り合わせる際、シートとガラスとの境界に気泡
が残存しにくいフッ素樹脂シートを提供するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stickable fluororesin sheet having a good appearance when bonded to glass, and more particularly, to a method for bonding a fluororesin sheet and glass together. The present invention provides a fluororesin sheet in which air bubbles hardly remain at the boundary of the above.
【０００２】[0002]
【従来技術】ガラス板は、透明性、強度を有する材料で
あるが耐衝撃性が弱く、それを補うものとして、プラス
チックシートと貼り合わせた安全ガラスが一般に用いら
れている。しかし一般のプラスチックシートでは、ガラ
スが割れたときの破片の飛散を防止することはできる
が、火災時にはプラスチックシートが燃焼するので、難
燃性を満足させることはできない。2. Description of the Related Art Although a glass plate is a material having transparency and strength, its impact resistance is weak, and as a supplement to this, safety glass bonded to a plastic sheet is generally used. However, with a general plastic sheet, it is possible to prevent the fragments from being scattered when the glass is broken. However, since the plastic sheet burns in a fire, the flame retardancy cannot be satisfied.
【０００３】そこで、防火・防炎性を有し、かつ通常時
に割れても破片飛散防止性を有するガラスとして、ガラ
ス板に難燃性に優れたフッ素樹脂シートを接着した防火
安全ガラスが提案されている。[0003] In view of the above, a fire-resistant safety glass in which a glass sheet is bonded to a fluororesin sheet having excellent flame-retardancy has been proposed as a glass having fire- and flame-proof properties and a property of preventing fragments from being scattered even when normally broken. ing.
【０００４】しかし通常のフッ素樹脂フイルムを用いる
と、ガラスとの積層のときに気泡が抜けきれず、外観が
不良となり、さらには気泡部分に応力が集中し、衝撃性
も弱い合わせガラスしか得ることができないという難点
がある。However, when a normal fluororesin film is used, air bubbles cannot be completely removed when laminated with glass, resulting in a poor appearance. Further, stress is concentrated on the air bubble portion and only a laminated glass having a weak impact property is obtained. There is a drawback that you can not.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、ガラスとの
積層工程中に気泡が抜けやすく、得られた合わせガラス
が必然的に外観美麗で耐衝撃性に優れたものとなる合わ
せガラス用フッ素樹脂シートを提供するものである。DISCLOSURE OF THE INVENTION The present invention relates to a fluorine for laminated glass, in which bubbles are easily removed during the lamination process with glass, and the obtained laminated glass is inevitably beautiful in appearance and excellent in impact resistance. A resin sheet is provided.
【０００６】[0006]
【課題を解決するための手段】本発明は、ガラスとの積
層工程中に気泡が抜けやすい合わせガラス用フッ素樹脂
シートを提供するものであって、その要旨は、フッ素樹
脂シートの表面が、中心線平均粗さＲａが０．０５〜２
μｍ、山数Ｐｃが５〜５００（個／８ｍｍ）のエンボス
形状を有し、シートの任意の５ｃｍの範囲内における厚
さの最大値と最小値との差が１５μｍ以下であるフッ素
樹脂シートにある。SUMMARY OF THE INVENTION The present invention provides a fluororesin sheet for laminated glass in which air bubbles easily escape during a lamination process with glass. Line average roughness Ra is 0.05 to 2
μm, a fluororesin sheet having an embossed shape with a peak number Pc of 5 to 500 (pieces / 8 mm) and a difference between a maximum value and a minimum value of the thickness within an arbitrary range of 5 cm of the sheet is 15 μm or less. is there.
【０００７】また別の発明の要旨は、フッ素樹脂シート
の一面または両面に接着剤層を有し、その接着剤層の表
面が、中心線平均粗さＲａが０．０５〜２μｍ、山数Ｐ
ｃが５〜５００（個／８ｍｍ）のエンボス形状を有し、
シートの任意の５ｃｍの範囲内における厚さの最大値と
最小値との差が１５μｍ以下である接着剤層を有するフ
ッ素樹脂シートにある。Another gist of the invention is that a fluororesin sheet has an adhesive layer on one or both surfaces, and the surface of the adhesive layer has a center line average roughness Ra of 0.05 to 2 μm, a peak number P
c has an embossed shape of 5 to 500 (pieces / 8 mm),
A fluororesin sheet having an adhesive layer in which the difference between the maximum value and the minimum value of the thickness within an arbitrary range of 5 cm of the sheet is 15 μm or less.
【０００８】特に好適なエンボス形状は、中心線平均粗
さＲａが０．１〜０．５μｍ、山数Ｐｃが５０〜２００
（個／８ｍｍ）の範囲にあるものである。本発明フッ素
樹脂シートは、表面が特定のエンボス形状を有すること
により、フッ素樹脂シートあるいは接着剤層がガラスと
融着する際にガラスとの間に気泡が残存しない特性を有
している。A particularly preferred embossed shape has a center line average roughness Ra of 0.1 to 0.5 μm and a peak number Pc of 50 to 200.
(Pieces / 8 mm). Since the surface of the fluororesin sheet of the present invention has a specific embossed shape, when the fluororesin sheet or the adhesive layer is fused to the glass, no air bubbles remain between the glass and the glass.
【０００９】[0009]
【発明の実施の形態】以下本発明を詳しく説明する。本
発明におけるフッ素樹脂シートは、モノマー成分が、フ
ッ化ビニル、フッ化ビニリデン、トリフルオロエチレ
ン、テトラフルオロエチレン、ペンタフルオロプロピレ
ン、へキサフルオロプロピレンなどの含フッ素モノマー
の単独重合体または共重合体、あるいは前記含フッ素モ
ノマーに、エチレン、アルキルビニルエーテルなどのビ
ニルモノマーなどが併用された共重合体、あるいはこれ
らの混合物からなるものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. The fluororesin sheet in the present invention, the monomer component, vinyl fluoride, vinylidene fluoride, trifluoroethylene, tetrafluoroethylene, pentafluoropropylene, homopolymer or copolymer of a fluorine-containing monomer such as hexafluoropropylene, Alternatively, it is formed of a copolymer in which a vinyl monomer such as ethylene or alkyl vinyl ether is used in combination with the fluorine-containing monomer, or a mixture thereof.
【００１０】そしてシート状に成形できエンボス可能な
もの、すなわち熱溶融成形可能なものであればよく、テ
トラフルオロエチレンの単独重合体（ＰＴＦＥ）以外の
フッ素樹脂は特に制限なく使用することができる。Any material that can be formed into a sheet and that can be embossed, that is, a material that can be hot-melt-molded, may be used. Fluororesins other than tetrafluoroethylene homopolymer (PTFE) can be used without any particular limitation.
【００１１】具体的には、テトラフルオロエチレン−パ
ーフルオロアルキルビニルエーテル共重合体、テトラフ
ルオロエチレン−ヘキサフルオロプロピレン共重合体、
テトラフルオロエチレン−ビニリデンフルオライド−ヘ
キサフルオロプロピレン共重合体、ポリビニリデンフル
オライドなどが挙げられる。Specifically, a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer, a tetrafluoroethylene-hexafluoropropylene copolymer,
Examples thereof include a tetrafluoroethylene-vinylidene fluoride-hexafluoropropylene copolymer and polyvinylidene fluoride.
【００１２】フッ素樹脂シートの厚さは特に制限はない
が、合わせガラスの中間層としては通常０．１ｍｍ〜２
ｍｍ程度の範囲にある。シートの成形方法も一般的に知
られている方法を採用すればよく、例えば有機溶剤に溶
解して剥離性基材の上に均一に塗布した後、有機溶剤を
乾燥除去して基材から剥がす方法、水性エマルジョンに
して剥離性基材の上に均一に塗布した後、水を乾燥除去
して基材から剥がす方法、押出成形やカレンダ成形など
の熱可塑成形法などによることができる。Although the thickness of the fluororesin sheet is not particularly limited, the thickness of the intermediate layer of the laminated glass is usually 0.1 mm to 2 mm.
mm. The method for forming the sheet may be a generally known method, for example, after dissolving in an organic solvent and uniformly applying the composition on a releasable substrate, removing the organic solvent from the substrate by drying. A method, a method of forming an aqueous emulsion, uniformly applying the composition on a releasable substrate, and then removing and drying the water from the substrate, and a thermoplastic molding method such as extrusion molding or calendar molding can be used.
【００１３】フッ素樹脂シートの表面は、中心線平均粗
さＲａが０．０５〜２μｍの範囲にあり、山数Ｐｃが５
〜５００（個／８ｍｍ）の範囲にあるエンボス形状を有
している。ここで、中心線平均粗さＲａはＪＩＳ Ｂ
０６０１に算術平均粗さＲａとして規定されているもの
であり、山数Ｐｃは、後記実施例において説明した方法
により計測したものである。The surface of the fluororesin sheet has a center line average roughness Ra in the range of 0.05 to 2 μm and a peak number Pc of 5
It has an embossed shape in the range of up to 500 (pieces / 8 mm). Here, the center line average roughness Ra is JIS B
0601 is defined as the arithmetic average roughness Ra, and the number of peaks Pc is measured by the method described in the following example.
【００１４】Ｒａが０．０５μｍ未満あるいは２μｍを
越えると気泡が残存しやすくなる。これは、０．０５μ
ｍ未満であるとガラスと貼り合わせるときに、熱により
シートのエンボスの山の頂上が早く溶解するのでシート
とガラスの間の空気が抜け切れず、またＲａが２μｍを
越えるとエンボスの山が高すぎて、加熱溶融の場合に今
度は山の麓に空気が閉じ込められ、いずれも気泡が残る
ものと推測される。When Ra is less than 0.05 μm or more than 2 μm, bubbles tend to remain. This is 0.05μ
When it is less than m, the top of the embossed hill of the sheet is melted quickly by heat when bonded to the glass, so that the air between the sheet and the glass cannot be completely escaped, and when Ra exceeds 2 μm, the embossed hill becomes high. It is presumed that air is trapped at the foot of the mountain this time in the case of heating and melting, and that bubbles remain in any case.
【００１５】Ｐｃが５未満の場合は、シートの凸部の間
隔が広すぎて、加熱溶融の早い時期に凹部もガラスと接
触を起こす結果、不規則な位置に気泡が残存して外観不
良となる。またＰｃが５００を越える場合は、凸部間隔
が狭すぎて、凸部が加熱により溶融する過程で凸部間に
気泡が閉じ込められ外観不良となる。If Pc is less than 5, the interval between the convex portions of the sheet is too wide, and the concave portions come into contact with the glass at an early stage of heating and melting. As a result, air bubbles remain at irregular positions, resulting in poor appearance. Become. On the other hand, when Pc exceeds 500, the interval between the projections is too small, and bubbles are trapped between the projections during the process of melting the projections by heating, resulting in poor appearance.
【００１６】特に好適なエンボス形状は、中心線平均粗
さＲａが０．１〜０．５μｍの範囲にあり、山数Ｐｃが
５０〜２００（個／８ｍｍ）の範囲にあるようなエンボ
ス形状である。この範囲では、気泡の残存が著しく少な
くなる。Particularly preferred embossed shapes are those having a center line average roughness Ra in the range of 0.1 to 0.5 μm and a peak number Pc in the range of 50 to 200 (pieces / 8 mm). is there. In this range, the amount of remaining bubbles is significantly reduced.
【００１７】シート表面にこのようなエンボスを付与す
る方法には特に制限はなく、フッ素樹脂シートを予熱し
た後、加熱したエンボスロール、エンボスベルトで加圧
する方法、熱プレス法でエンボス板で加圧する方法、エ
ンボスを有する転写用シートを加熱圧着後剥離する方法
などがある。There is no particular limitation on the method of imparting such embossment to the sheet surface. The preheating of the fluororesin sheet is followed by pressing with a heated embossing roll or embossing belt, or pressing with an embossed plate by hot pressing. And a method in which an embossed transfer sheet is peeled after heating and pressing.
【００１８】また本発明においては、フッ素樹脂シート
の任意の５ｃｍの範囲内における厚さの最大値と最小値
との差が１５μｍ以内であることが必要である。１５μ
ｍを超えると、その部分の凹凸が大きすぎて凸部が加熱
によって溶融してガラスに密着するまでにその周囲の凹
部にある気泡が抜けきらず残存し外観不良となる。In the present invention, it is necessary that the difference between the maximum value and the minimum value of the thickness of the fluororesin sheet within an arbitrary range of 5 cm is within 15 μm. 15μ
If m is exceeded, the irregularities in that portion are too large, and the bubbles in the surrounding concave portions are not completely removed until the convex portions are melted by heating and adhere to the glass, resulting in poor appearance.
【００１９】以上説明したフッ素樹脂シートは、ガラス
板の間に挟んで加熱加圧して溶融させることにより、ガ
ラス板同士を貼り合わせるのに用いることができる。ま
たその際、ガラス板に接着剤を均一に塗布しておき、接
着剤によりガラス板同士を貼り合わせることもできる。The above-described fluororesin sheet can be used for laminating glass sheets by sandwiching between glass plates and heating and pressing to melt them. At this time, an adhesive may be uniformly applied to the glass plates, and the glass plates may be bonded to each other with the adhesive.
【００２０】しかし実用的には、フッ素樹脂シートの表
面に接着剤を塗布した接着剤層付きシートとして使用す
るのが好ましい。すなわち、フッ素樹脂シートのみでは
接着性が不足しがちであり、またガラス板に接着剤を塗
布するのは工程上繁雑となる場合があるからである。However, practically, it is preferable to use the sheet with an adhesive layer in which an adhesive is applied to the surface of a fluororesin sheet. That is, adhesiveness tends to be insufficient with only a fluororesin sheet, and applying an adhesive to a glass plate may be complicated in the process.
【００２１】接着剤層付きシートとしては、接着剤層の
表面のエンボス形状が前記の中心線平均粗さＲａが０．
０５〜２μｍ、山数Ｐｃが５〜５００（個／８ｍｍ）の
範囲にあればよい。また接着剤層付きシートの状態で、
任意の５ｃｍ間隔内における厚さの最大値と最小値との
差が１５μｍ以内であることが必要である。この場合に
も、中心線平均粗さＲａが０．１〜０．５μｍの範囲に
あり、山数Ｐｃが５０〜２００（個／８ｍｍ）の範囲に
あるようなエンボス形状が特に好適である。In the sheet with an adhesive layer, the embossed shape of the surface of the adhesive layer has the center line average roughness Ra of 0.
It suffices that the thickness be in the range of 0.5 to 2 μm and the number of peaks Pc in the range of 5 to 500 (pieces / 8 mm). In the state of the sheet with the adhesive layer,
It is necessary that the difference between the maximum value and the minimum value of the thickness within any 5 cm interval is within 15 μm. Also in this case, an embossed shape in which the center line average roughness Ra is in the range of 0.1 to 0.5 μm and the number of peaks Pc is in the range of 50 to 200 (pieces / 8 mm) is particularly suitable.
【００２２】接着剤としては、工業的に使用されている
もので、ガラスとフッ素樹脂の双方に接着性を有するも
のであれば使用可能であリ、例えばエチレン−酢酸ビニ
ル共重合体、ポリビニルエーテル系、ポリエステル系、
アクリル系、エポキシ系、ポリウレタン系、ゴム系、シ
リコーン系などの接着剤を用いることができる。As the adhesive, those which are used industrially and can be used as long as they have adhesiveness to both glass and fluororesin, for example, ethylene-vinyl acetate copolymer, polyvinyl ether System, polyester system,
Acrylic, epoxy, polyurethane, rubber, and silicone adhesives can be used.
【００２３】この方法で得られた、フッ素樹脂／接着剤
層のフイルムは、接着剤を乾燥させた後に通常の方法で
巻取可能であり、保管も容易であるから利用価値は大き
い。The film of the fluororesin / adhesive layer obtained by this method can be wound up by a usual method after drying the adhesive, and can be stored easily.
【００２４】フッ素樹脂シートへの接着剤の塗布は通常
の方法によればよく、接着剤層の表面にエンボスを付与
するには、規定の表面粗さのポリエステルフィルムを接
着剤塗布後に接着剤層に圧着して、表面の微細な凹凸を
接着剤層に転写することで、気泡が抜けやすいエンボス
を施すことができる。また、接着剤表面をある程度加熱
した後、加熱したエンボスロール、エンボスベルトで加
圧する方法、熱プレス法でエンボス板で加圧する方法な
どによることもできる。The adhesive may be applied to the fluororesin sheet by a usual method. In order to emboss the surface of the adhesive layer, a polyester film having a specified surface roughness is applied to the adhesive layer after the adhesive is applied. By compressing the surface to transfer the fine irregularities on the surface to the adhesive layer, it is possible to emboss the air bubbles easily. Alternatively, a method in which the surface of the adhesive is heated to some extent and then pressed with a heated embossing roll or embossed belt, or a method in which the surface of the adhesive is pressed with an embossed plate by a hot press method can be used.
【００２５】本発明の所定形状の表面エンボスを付与さ
れたフッ素樹脂シートまたは接着剤層付きフッ素樹脂シ
ートは、ガラス板の間に挟んで加熱加圧して溶融させる
ことにより、ガラス板同士を貼り合わせるのに用いるこ
とができる。得られる合わせガラスは、防火・防炎性を
有し、また割れたときの破片飛散防止性を有している。
そして、気泡の巻き込みが少ないため、外観が良好であ
るとともに、接着強度にも優れたものとなる。また本発
明フッ素樹脂シートは、その気泡の巻き込みが少ないと
いう特徴を生かして、防火・防炎性を要求されない分野
にももちろん応用することができるが、その場合には、
両表面層がフッ素樹脂からなり中心にポリエチレンテレ
フタレートなどの他種ポリマの層を有するシートであっ
てもよい。The fluororesin sheet or the fluororesin sheet with the adhesive layer of the present invention having a predetermined surface embossed surface is bonded between glass plates by being heated and pressurized and melted. Can be used. The obtained laminated glass has fire and flame resistance and also has a property of preventing fragments from being scattered when broken.
And since there is little entrapment of air bubbles, the appearance is good and the adhesive strength is also excellent. In addition, the fluororesin sheet of the present invention can be applied to fields where fire and flame resistance are not required, of course, taking advantage of the feature that the entrapment of air bubbles is small.
A sheet having both surface layers made of a fluororesin and having a layer of another polymer such as polyethylene terephthalate at the center may be used.
【００２６】なおガラス板としては、工業的に使用され
ている各種無機ガラスを特に制限なく使用することがで
きる。As the glass plate, various kinds of inorganic glass used industrially can be used without any particular limitation.
【００２７】[0027]
（実施例１）フッ化ビニリデン４０重量％、テトラフル
オロエチレン４０重量％、ヘキサフルオロプロピレン２
０重量％からなる共重合フッ素樹脂を押出機により１８
０℃の温度で溶融押し出して、厚さ２００μｍのフッ素
樹脂シートを得た。(Example 1) 40% by weight of vinylidene fluoride, 40% by weight of tetrafluoroethylene, and hexafluoropropylene 2
0% by weight of a copolymerized fluororesin was extruded by an extruder to 18
It was melt-extruded at a temperature of 0 ° C. to obtain a fluororesin sheet having a thickness of 200 μm.
【００２８】得られたフッ素樹脂シートを、表面が各種
エンボスに加工された鉄製のエンボス板に挟み、熱プレ
ス法（温度１３０℃、圧力０．５Ｋｇ／ｃｍ2 、時間５
分間）でエンボス加工した。The obtained fluororesin sheet was sandwiched between iron embossed plates having various embossed surfaces, and subjected to a hot press method (temperature: 130 ° C., pressure: 0.5 kg / cm 2 , time: 5 hours).
Min).
【００２９】一方、厚さ３ｍｍ、幅９００ｍｍ、長さ２
０００ｍｍのガラス板表面にアクリル系接着剤を厚さ１
μｍに塗布したものを用意し、それらガラス板の間に、
上記のエンボス加工されたフッ素樹脂シートを挟み、加
熱して合わせガラスを作製した。得られた合わせガラス
の外観などを評価した結果を表１に示す。On the other hand, thickness 3 mm, width 900 mm, length 2
Acrylic adhesive on the glass plate surface of 000 mm thickness 1
Prepare the one coated to μm, and between those glass plates,
The embossed fluororesin sheet was sandwiched and heated to produce a laminated glass. Table 1 shows the results of evaluating the appearance and the like of the obtained laminated glass.
【００３０】（実施例２）実施例１と同じフッ素樹脂を
溶融押出した後、その両側の表面に実施例１と同じ接着
剤を厚さ１μｍに塗布した。その乾燥前に、各種エンボ
ス加工された表面をもつポリエステルフイルムを接着剤
層の両側の表面に圧着して、各種エンボス加工された表
面のフッ素樹脂／接着剤層のシートを得た。Example 2 After the same fluororesin as in Example 1 was melt extruded, the same adhesive as in Example 1 was applied to the surfaces on both sides thereof to a thickness of 1 μm. Before the drying, a polyester film having various embossed surfaces was pressed against both surfaces of the adhesive layer to obtain sheets of the fluororesin / adhesive layer having various embossed surfaces.
【００３１】得られたフッ素樹脂／接着剤層シートを実
施例１と同じガラスに挟み、同じ条件で合わせガラスを
得た。得られた合わせガラスの外観などを評価した結果
を表２に示す。The obtained fluororesin / adhesive layer sheet was sandwiched between the same glasses as in Example 1 to obtain a laminated glass under the same conditions. Table 2 shows the results of evaluating the appearance and the like of the obtained laminated glass.
【００３２】なお、各項目の試験評価方法は次の通り。 （１）中心線平均粗さ（Ｒａ）および山数（Ｐｃ） 触針式表面粗さ計（（株）小坂研究所製ＳＥ−３ＦＫ）
を用いて、針先端径２μｍ、針荷重７０ｍｇ、カットオ
フ値０．８ｍｍの条件で、フッ素樹脂シートまたは接着
剤層表面の任意の８ｍｍ間隔について、中心線平均粗さ
を測定した。The test evaluation method for each item is as follows. (1) Center line average roughness (Ra) and number of peaks (Pc) Stylus type surface roughness meter (SE-3FK manufactured by Kosaka Laboratory Co., Ltd.)
The center line average roughness was measured at arbitrary intervals of 8 mm on the surface of the fluororesin sheet or the adhesive layer under the conditions of a needle tip diameter of 2 μm, a needle load of 70 mg, and a cutoff value of 0.8 mm.
【００３３】山数（Ｐｃ）は、図１に示すように、上で
得られた粗さ曲線の中心線から±ｙ（ｍｍ）の距離に２
本の平行線を引き、−ｙの線から＋ｙの線に達し、再度
−ｙの線に至るまでを１山と数えた。As shown in FIG. 1, the number of peaks (Pc) is 2 at a distance of ± y (mm) from the center line of the roughness curve obtained above.
One parallel line was drawn, and one mountain was counted from the line of -y to the line of + y to the line of -y again.
【００３４】ｙ（ｍｍ）は、ｙ＝０．２５／（測定倍
率）であり、本実施例では測定倍率は５０００である
が、山が高いＮｏ．８および１４については測定倍率は
５００である。Y (mm) is y = 0.25 / (measurement magnification). In this embodiment, the measurement magnification is 5000. For 8 and 14, the measurement magnification is 500.
【００３５】（２）厚さの最大値と最小値との差 接触式連続厚さ計を用いて、シート厚さを１μｍ単位で
測定した。測定箇所はシートの長さ方向に沿って２カ
所、シートの幅方向に沿って２カ所を測定長５０ｃｍに
わたり測定した。そして各々の測定長５０ｃｍの間で、
５ｃｍの間で厚さの最大値と最小値との差が最も大きい
部分をみつけて、その最大値と最小値との差をもとめ
た。そしてその最大値と最小値との差を測定箇所４カ所
で平均した。 （３）外観 合わせガラスの外観を目視で観察し、残存する気泡の数
のレベルを３段階で評価した。(2) Difference between Maximum and Minimum Thickness The sheet thickness was measured in 1 μm units using a contact-type continuous thickness gauge. The measurement was performed at two locations along the sheet length direction and at two locations along the sheet width direction over a measurement length of 50 cm. And between each measurement length 50cm,
The part where the difference between the maximum value and the minimum value of the thickness was largest between 5 cm was found, and the difference between the maximum value and the minimum value was determined. Then, the difference between the maximum value and the minimum value was averaged at four measurement points. (3) Appearance The appearance of the laminated glass was visually observed, and the level of the number of remaining bubbles was evaluated on a three-point scale.
【００３６】 ○ ほとんど気泡が残らない △ 一部に小さな気泡が残る × 全面に気泡が残る○ Almost no air bubbles remain △ Small air bubbles remain partially × Air bubbles remain over the entire surface
【表１】 [Table 1]
【００３７】[0037]
【表２】 [Table 2]
【００３８】表１、２に示す結果から明らかなように、
本発明シート（Ｎｏ．２〜４、６〜７および９〜１３）
は、Ｒａ、Ｐｃおよび厚さの差が所定範囲内にあり、そ
れを用いて得られた合わせガラスは気泡の残存が少なく
外観良好であった。特に、Ｒａが０．１〜０．５μｍ、
山数Ｐｃが５０〜２００（個／８ｍｍ）にあるＮｏ．２
〜４、および１０〜１２においては、気泡の残存が極め
て少ない合わせガラスが得られた。As is clear from the results shown in Tables 1 and 2,
Invention sheet (Nos. 2 to 4, 6 to 7, and 9 to 13)
The difference between Ra, Pc and the thickness was within a predetermined range, and the laminated glass obtained using the same had few bubbles remaining and had a good appearance. In particular, Ra is 0.1 to 0.5 μm,
When the peak number Pc is in the range of 50 to 200 (pieces / 8 mm). 2
In the cases of Nos. 4 and 10 and 12, a laminated glass having extremely few bubbles was obtained.
【００３９】これに対し、エンボス形状が本発明の規定
範囲外があるＮｏ．１、８および１４では、外観良好な
合わせガラスは得られなかった。また、厚さふれの大き
いシート（Ｎｏ．５）ではエンボス形状が適切でも外観
良好な合わせガラスは得られなかった。On the other hand, in the case of No. 3 in which the embossed shape is out of the specified range of the present invention. In Examples 1, 8 and 14, a laminated glass having a good appearance was not obtained. Further, in the case of the sheet (No. 5) having a large thickness fluctuation, a laminated glass having a good appearance was not obtained even if the embossed shape was appropriate.
【００４０】[0040]
【発明の効果】本発明によれば、ガラスに接着するフッ
素樹脂シートの持つ特性により、難燃性の高い防火ガラ
スを得ることができる。そして、表面に特定のエンボス
形状を付与することにより、ガラスとの接着の際に気泡
が残存せず、高透明で外観良好な合わせガラスを得るこ
とができる。According to the present invention, fireproof glass having high flame retardancy can be obtained due to the properties of the fluororesin sheet bonded to the glass. Then, by giving a specific embossed shape to the surface, air bubbles do not remain at the time of bonding with glass, and a highly transparent laminated glass having a good appearance can be obtained.
【図１】 エンボスの山数の計測方法を説明する図。FIG. 1 is a view for explaining a method for measuring the number of embossed peaks.
───────────────────────────────────────────────────── 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 // Ｃ０８Ｊ 5/18 ＣＥＷ Ｃ０８Ｊ 5/18 ＣＥＷ Ｂ２９Ｋ 27:12 Ｂ２９Ｌ 7:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display location // C08J 5/18 CEW C08J 5/18 CEW B29K 27:12 B29L 7:00
Claims (3)
粗さＲａが０．０５〜２μｍ、山数Ｐｃが５〜５００
（個／８ｍｍ）のエンボス形状を有し、シートの任意の
５ｃｍの範囲内における厚さの最大値と最小値との差が
１５μｍ以下であることを特徴とするフッ素樹脂シー
ト。1. The surface of a fluororesin sheet has a center line average roughness Ra of 0.05 to 2 μm and a peak number Pc of 5 to 500.
A fluororesin sheet having an embossed shape of (pieces / 8 mm), wherein a difference between a maximum value and a minimum value of the thickness within an arbitrary range of 5 cm of the sheet is 15 μm or less.
着剤層を有し、その接着剤層の表面が、中心線平均粗さ
Ｒａが０．０５〜２μｍ、山数Ｐｃが５〜５００（個／
８ｍｍ）のエンボス形状を有し、シートの任意の５ｃｍ
の範囲内における厚さの最大値と最小値との差が１５μ
ｍ以下であることを特徴とするフッ素樹脂シート。2. A fluororesin sheet having an adhesive layer on one or both surfaces thereof, wherein the surface of the adhesive layer has a center line average roughness Ra of 0.05 to 2 μm and a peak number Pc of 5 to 500 (pieces). /
8mm) with an embossed shape and any 5cm of the sheet
The difference between the maximum value and the minimum value of the thickness within the range of 15 μm
m or less.
ｍ、山数Ｐｃが５０〜２００（個／８ｍｍ）の範囲にあ
ることを特徴とする請求項１または２記載のフッ素樹脂
シート。3. The center line average roughness Ra is 0.1 to 0.5 μm.
3. The fluororesin sheet according to claim 1, wherein m and the number of peaks Pc are in the range of 50 to 200 (pieces / 8 mm).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23220096A JP4124498B2 (en) | 1996-09-02 | 1996-09-02 | Fluorine resin sheet |
| US08/921,017 US6042928A (en) | 1996-09-02 | 1997-08-29 | Fluorocarbon resin sheet and glass laminate |
| DE1997626073 DE69726073T2 (en) | 1996-09-02 | 1997-09-01 | Fluorocarbon resin film and laminated glass |
| ES97115130T ES2208799T3 (en) | 1996-09-02 | 1997-09-01 | GLUOROCARBURIC AND LAMINATED GLASS RESIN SHEET. |
| EP97115130A EP0826722B1 (en) | 1996-09-02 | 1997-09-01 | Fluorocarbon resin sheet and glass laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23220096A JP4124498B2 (en) | 1996-09-02 | 1996-09-02 | Fluorine resin sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1076572A true JPH1076572A (en) | 1998-03-24 |
| JP4124498B2 JP4124498B2 (en) | 2008-07-23 |
Family
ID=16935563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23220096A Expired - Lifetime JP4124498B2 (en) | 1996-09-02 | 1996-09-02 | Fluorine resin sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4124498B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012096551A (en) * | 2006-11-16 | 2012-05-24 | Mitsubishi Plastics Inc | Gas barrier film laminate |
| JP2012214739A (en) * | 2011-03-28 | 2012-11-08 | Daikin Industries Ltd | Sheet for preventing adhesion of aquatic organism and coating material for preventing adhesion of aquatic organism |
| WO2016052615A1 (en) * | 2014-09-30 | 2016-04-07 | 積水化学工業株式会社 | Interlayer film for laminated glass, roll-shaped body, laminated glass, method for manufacturing interlayer film for laminated glass, and method for manufacturing roll-shaped body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51140913A (en) * | 1975-05-19 | 1976-12-04 | Monsanto Co | Improved intermediate layer for laminated safety glass |
| JPS60208241A (en) * | 1984-03-31 | 1985-10-19 | 積水化学工業株式会社 | Intermediate film for safety glass |
| JPH0851871A (en) * | 1994-08-10 | 1996-02-27 | Toyo Polymer Kk | Embossed fluororesin film for green house |
| JPH0873620A (en) * | 1994-09-12 | 1996-03-19 | Toray Ind Inc | Fluororesin film |
| JPH08132560A (en) * | 1994-11-09 | 1996-05-28 | Nippon Electric Glass Co Ltd | Fireproof safety glass |
| JPH08258228A (en) * | 1995-03-22 | 1996-10-08 | Asahi Glass Co Ltd | Agricultural fluoroplastic laminate |
-
1996
- 1996-09-02 JP JP23220096A patent/JP4124498B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51140913A (en) * | 1975-05-19 | 1976-12-04 | Monsanto Co | Improved intermediate layer for laminated safety glass |
| JPS60208241A (en) * | 1984-03-31 | 1985-10-19 | 積水化学工業株式会社 | Intermediate film for safety glass |
| JPH0851871A (en) * | 1994-08-10 | 1996-02-27 | Toyo Polymer Kk | Embossed fluororesin film for green house |
| JPH0873620A (en) * | 1994-09-12 | 1996-03-19 | Toray Ind Inc | Fluororesin film |
| JPH08132560A (en) * | 1994-11-09 | 1996-05-28 | Nippon Electric Glass Co Ltd | Fireproof safety glass |
| JPH08258228A (en) * | 1995-03-22 | 1996-10-08 | Asahi Glass Co Ltd | Agricultural fluoroplastic laminate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012096551A (en) * | 2006-11-16 | 2012-05-24 | Mitsubishi Plastics Inc | Gas barrier film laminate |
| JP2012214739A (en) * | 2011-03-28 | 2012-11-08 | Daikin Industries Ltd | Sheet for preventing adhesion of aquatic organism and coating material for preventing adhesion of aquatic organism |
| WO2016052615A1 (en) * | 2014-09-30 | 2016-04-07 | 積水化学工業株式会社 | Interlayer film for laminated glass, roll-shaped body, laminated glass, method for manufacturing interlayer film for laminated glass, and method for manufacturing roll-shaped body |
| JPWO2016052615A1 (en) * | 2014-09-30 | 2017-07-13 | 積水化学工業株式会社 | Intermediate film for laminated glass, roll-shaped body, laminated glass, method for producing interlayer film for laminated glass, and method for producing roll-shaped body |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4124498B2 (en) | 2008-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61255846A (en) | Peel-resistant cellular reverse reflective sheet | |
| KR20090120519A (en) | Mold release film | |
| US5069851A (en) | ABS/Acrylic lamination process | |
| US6042928A (en) | Fluorocarbon resin sheet and glass laminate | |
| JPH1076572A (en) | Fluororesin sheet | |
| JP7405166B2 (en) | Laminates and articles | |
| JP3631869B2 (en) | Fluorine resin sheet and laminated glass | |
| US6828009B2 (en) | Plastic composites and process for their manufacture | |
| JP4011712B2 (en) | Double-sided adhesive sheet | |
| JPS60208241A (en) | Intermediate film for safety glass | |
| JP2019098633A (en) | Manufacturing method of transparent sheet, and transparent sheet | |
| US4312909A (en) | Insulating material of metal film bonded to non-woven glass fabric with ethylene/vinyl acetate copolymer adhesive | |
| JPH1135348A (en) | Production of intermediate film for laminated glass | |
| EP0058406A2 (en) | Process for the preparation of laminate polymer articles and polymer article surface-protecting acrylic film for use in carrying out said process | |
| JP6371445B1 (en) | Transparent sheet, smoke barrier wall including the transparent sheet, and method for producing the transparent sheet | |
| US7364785B1 (en) | Layered film sheet for coating | |
| JP7115957B2 (en) | Transparent noncombustible sheet | |
| JP2000167988A (en) | Safety glass and fire prevention safety glass | |
| JP3673619B2 (en) | Fluorine resin sheet for glass laminates and glass bonding | |
| KR20200103632A (en) | Separator and adhesive tape or sheet with separator | |
| JP4717037B2 (en) | Double-sided adhesive sheet and separator | |
| US6890620B2 (en) | Laminate film | |
| JPH074908B2 (en) | Polyvinyl chloride laminated film having rough surface layer | |
| JP2008307734A (en) | Method of manufacturing design sheet, and design sheet | |
| JP2021154721A (en) | Glass scattering prevention sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050704 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050902 |
|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20050902 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20051025 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080319 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080502 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110516 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120516 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130516 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130516 Year of fee payment: 5 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |