JP3248670B2 - Mounting structure of fireproof laminated glass plate - Google Patents
Mounting structure of fireproof laminated glass plateInfo
- Publication number
- JP3248670B2 JP3248670B2 JP18817196A JP18817196A JP3248670B2 JP 3248670 B2 JP3248670 B2 JP 3248670B2 JP 18817196 A JP18817196 A JP 18817196A JP 18817196 A JP18817196 A JP 18817196A JP 3248670 B2 JP3248670 B2 JP 3248670B2
- Authority
- JP
- Japan
- Prior art keywords
- glass plate
- laminated glass
- fire
- fluororesin film
- fireproof
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
Landscapes
- Securing Of Glass Panes Or The Like (AREA)
- Special Wing (AREA)
- Laminated Bodies (AREA)
- Joining Of Glass To Other Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、火災時には防火戸とし
て機能し、また平常時には安全ガラスとして機能する防
火合わせガラス板の取付構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof laminated glass plate mounting structure which functions as a fire door in the event of a fire and also functions as safety glass in normal times.
【０００２】[0002]
【従来の技術】従来より複数枚の防火ガラス板を樹脂フ
ィルムを介して貼り合わせた防火合わせガラス板は、種
々提案されており、本願発明者等も、特開平４−２２４
９３８号でこの種の防火合わせガラス板を提案してい
る。2. Description of the Related Art Various types of fire-resistant laminated glass sheets in which a plurality of fire-resistant glass sheets are pasted together via a resin film have been proposed in the related art.
No. 938 proposes such a fireproof laminated glass plate.
【０００３】特開平４−２２４９３８号に開示された防
火合わせガラス板は、１枚あるいは複数枚の耐熱性透明
結晶化ガラス板の片面あるいは両面に、鎖状の分子構造
のみからなるフッ素樹脂フィルムが接着されてなるもの
であり、火災時においては火災や煙を遮断する防火ガラ
スとして機能し、また平常時においては、破損しても破
片が飛散せず、耐貫通性を有するという優れた特性を有
している。[0003] The fire-resistant laminated glass plate disclosed in Japanese Patent Application Laid-Open No. 4-224938 is a heat-resistant transparent crystallized glass plate having a fluororesin film comprising only a chain-like molecular structure on one or both surfaces thereof. It is bonded and functions as a fire-resistant glass that blocks fire and smoke in the event of a fire.In addition, in normal conditions, it does not scatter fragments even if damaged, and has excellent resistance to penetration. Have.
【０００４】またこのような防火合わせガラス板は、金
属製枠体に取り付けられて使用されるが、通常は、図２
に示すように防火ガラス板１０ａ、１０ａの間にフッ素
樹脂フィルム１０ｂが配置されてなる防火合わせガラス
板１０の周縁部を枠体１１の取付溝１１ａ内に嵌め込
み、取付溝１１ａの底部に不燃性あるいは難燃性のセッ
ティングブロック１２を配置し、その上に防火合わせガ
ラス板１０を載置する。さらに枠体１１の取付溝１１ａ
の内壁と防火合わせガラス板１０の間隙には、１〜１０
ｍｍ程度の間隙が形成されるが、両者の間には、シリコ
ン系やアクリル系の不燃性シーラント材１３が充填され
る。[0004] Further, such a fireproof laminated glass plate is used by being attached to a metal frame.
As shown in the figure, the periphery of the fireproof laminated glass plate 10 in which the fluororesin film 10b is disposed between the fireproof glass plates 10a and 10a is fitted into the mounting groove 11a of the frame body 11, and the bottom of the mounting groove 11a is nonflammable. Alternatively, a flame-retardant setting block 12 is arranged, and the fireproof laminated glass plate 10 is placed thereon. Furthermore, the mounting groove 11a of the frame 11
The gap between the inner wall and the fireproof laminated glass sheet 10 is 1 to 10
A gap of about mm is formed, and a silicon-based or acrylic-based incombustible sealant material 13 is filled between the two.
【０００５】この種のシーラント材１３は、火災等で高
温に曝されると、材料中の水分や有機成分は分解揮発す
るが、無機成分やフィラー材等が残存して形態を維持す
るという特性を有している。When this type of sealant material 13 is exposed to a high temperature due to a fire or the like, the moisture and organic components in the material are decomposed and volatilized, but the inorganic components and filler materials remain to maintain the shape. have.
【０００６】[0006]
【発明が解決しようとする課題】ところで上記した特開
平４−２２４９３８号の防火合わせガラス板で使用する
鎖状の分子構造のみからなるフッ素樹脂フィルムは、炭
素−フッ素間の強固な原子間結合と、フッ素原子が炭素
骨格を取り囲むことによるバリアー効果によって難燃性
であるという特性を有しており、具体的には、ＵＬ９４
の難燃性規格を満足する特性を有している。The fluororesin film having only a chain-like molecular structure used in the fireproof laminated glass plate disclosed in Japanese Patent Application Laid-Open No. 4-224938 described above has a strong interatomic bond between carbon and fluorine. Has the property of being flame-retardant due to the barrier effect of the fluorine atoms surrounding the carbon skeleton.
It has characteristics satisfying the flame retardancy standard of
【０００７】本願発明者等は、このような特性を有する
フッ素樹脂フィルムを、防火性ガラス板と組み合わすこ
とによって、一般の合わせガラスとは全く異なる防火性
能に優れた合わせガラスが得られることを見いだした。
すなわち一般の合わせガラスには、主にＰＶＢ樹脂フィ
ルムが使用され、このフィルムは、火災時に発火する
が、上記のフッ素樹脂フィルムを使用した合わせガラス
は、火災時においてもフィルムが発火することはなく、
炎や煙を長時間に亙って遮断することが可能であり、こ
のようにフッ素樹脂フィルムを防火合わせガラスに使用
することは、フッ素樹脂フィルムの応用例として全く例
が無かったことである。The inventors of the present application have found that by combining a fluororesin film having such properties with a fire-resistant glass plate, a laminated glass excellent in fire-proof performance completely different from ordinary laminated glass can be obtained. I found it.
That is, PVB resin film is mainly used for general laminated glass, and this film ignites at the time of fire, but the laminated glass using the above fluororesin film does not ignite even at the time of fire. ,
It is possible to block fire and smoke for a long time, and there is no application of the fluororesin film to the use of the fluororesin film for the fire-resistant laminated glass.
【０００８】またこのフッ素樹脂フィルムは、重合度が
高く、他の分子構造のフッ素樹脂フィルムに比べて複雑
に絡み合った構造を有するため、伸びと引っ張り強度が
大きく、具体的には、ＡＳＴＭ６３８規格による測定法
で、５Ｎ／ｍｍ2 以上の引っ張り強度と、同規格による
測定法で１５０％以上の伸びを有している。従ってこの
フィルムをガラス板に接着すると、衝撃吸収性に富み、
耐貫通性、飛散防止性に優れた材料が得られる。Further, since this fluororesin film has a high degree of polymerization and has a complicatedly entangled structure as compared with a fluororesin film having another molecular structure, it has a large elongation and tensile strength. Specifically, it conforms to ASTM638 standard. It has a tensile strength of 5 N / mm 2 or more as measured by a measuring method and an elongation of 150% or more as measured by the same standard. Therefore, when this film is bonded to a glass plate, it is rich in shock absorption,
A material excellent in penetration resistance and scattering prevention can be obtained.
【０００９】さらにこのフッ素樹脂フィルムは、その厚
みや材料を適宜選択することによって、所望の耐衝撃性
を得ることが可能であり、その厚みとしては、０．０２
〜３ｍｍが好ましい。Further, the fluororesin film can obtain a desired impact resistance by appropriately selecting the thickness and the material thereof.
３3 mm is preferred.
【００１０】しかしながら樹脂フィルムは、火災時に加
熱されると、熱分解し、ガスを発生するという特性を有
している。２枚のガラス板の間に位置する樹脂フィルム
が、熱分解した時に、合わせガラス周縁部でガラス板と
樹脂が強固に接着していると、分解ガスが、合わせガラ
スの外部に抜けることができない。その結果、分解ガス
の圧力によってガラス板が破裂し、貫通孔が形成され、
防火性能が著しく損なわれることになる。However, when heated in a fire, the resin film is thermally decomposed to generate gas. When the resin film located between the two glass plates is thermally decomposed and the glass plate and the resin are firmly adhered at the periphery of the laminated glass, the decomposition gas cannot escape to the outside of the laminated glass. As a result, the glass plate ruptures due to the pressure of the decomposition gas, a through hole is formed,
Fire protection performance will be significantly impaired.
【００１１】また防火合わせガラス板の周縁部と枠体の
内壁との間隙に、上記したような不燃性のシーラント材
を充填した場合、シーラント材は加熱されても形態を維
持するため、防火合わせガラス板の周縁部が固定された
ままであり、各ガラス板の間隔は広がらず、やはり分解
ガスが外部に抜けにくい。この場合も、同様に分解ガス
の圧力によりガラス板が破裂して貫通孔が形成され、防
火性能が著しく損なわれるという問題がある。When the above-described non-combustible sealant is filled in the gap between the peripheral portion of the fire-resistant laminated glass sheet and the inner wall of the frame, the sealant keeps its shape even when heated. The periphery of the glass plate remains fixed, the interval between the glass plates does not widen, and the decomposition gas also hardly escapes to the outside. Also in this case, similarly, there is a problem that the glass plate ruptures due to the pressure of the decomposition gas and a through hole is formed, and the fire prevention performance is significantly impaired.
【００１２】また特開平７−２２９３７２号には、防火
ガラス板の周縁部を枠体の取付構造に嵌め込み、防火ガ
ラス板と取付溝の内壁との間に熱膨張性材料からなる充
填材を充填することが開示されている。Japanese Patent Application Laid-Open No. 7-229372 discloses that a peripheral portion of a fireproof glass plate is fitted into a mounting structure of a frame, and a filler made of a thermally expandable material is filled between the fireproof glass plate and an inner wall of the mounting groove. Is disclosed.
【００１３】しかしながら防火合わせガラス板の周縁部
を枠体の取付溝に嵌め込む場合に、このような充填材を
使用すると、火災が起きた際に、充填材によって防火合
わせガラス板が強固に押さえ付けられることになるた
め、分解ガスが外部に抜けず、ガラス板が破裂する危険
性が益々高くなる。However, when such a filler is used when the peripheral edge of the fireproof laminated glass sheet is fitted into the mounting groove of the frame, the fireproof laminated glass sheet is firmly held down by the filler when a fire occurs. As a result, the decomposition gas does not escape to the outside, and the risk of rupture of the glass plate increases.
【００１４】また特開平４−２２４９３８号では、フッ
素樹脂フィルムの具体例として、フロリーネーテッドエ
チレンプロピレン（ＦＥＰ）、４フッ化エチレン−パー
フロロアルコキシエチレン共重合体（ＰＦＡ）、ポリク
ロロトリフルオロエチレン（ＰＣＴＦＥ）、四フッ化エ
チレン・エチレン共重合体（ＥＴＦＥ）、ポリビニリデ
ンフルオライド（ＰＶＤＦ）が挙げられているが、これ
らの樹脂は、製造上の難点がある。In JP-A-4-224938, specific examples of a fluororesin film include fluorinated ethylene propylene (FEP), tetrafluoroethylene-perfluoroalkoxyethylene copolymer (PFA), and polychlorotrifluoroethylene. (PCTFE), ethylene tetrafluoride / ethylene copolymer (ETFE), and polyvinylidene fluoride (PVDF), but these resins have manufacturing difficulties.
【００１５】すなわち上記のフッ素樹脂フィルムをガラ
ス板と接着するには、粘着剤を使用する方法と熱圧着に
よる方法の２種類が存在するが、まず粘着剤を使用する
方法の場合、粘着剤の材質や表面形状等を厳しく制御す
る必要があり、その維持管理に労力がかかるという難点
がある。That is, there are two types of methods for bonding the above-mentioned fluororesin film to a glass plate, a method using an adhesive and a method using thermocompression bonding. It is necessary to strictly control the material, the surface shape, and the like, and there is a problem that labor is required for maintenance and management.
【００１６】また熱圧着による場合、上記のフッ素樹脂
は、一般の合わせガラスに使用されるＰＶＢ樹脂等に比
べて融点が高いため、接着するのに高温を必要とし、熱
によってガラス板が破損したり、特別な熱圧着設備が必
要でコスト高になる。In the case of thermocompression bonding, the above-mentioned fluororesin has a higher melting point than PVB resin or the like used for general laminated glass, and therefore requires a high temperature for bonding, and the heat breaks the glass plate. In addition, special thermocompression bonding equipment is required, which increases costs.
【００１７】さらにＰＶＢ樹脂も含めて、樹脂フィルム
をガラス板に熱圧着する場合には、オートクレーブ処理
や真空加熱のように、樹脂中の残存気泡を取り除くため
のバッチ式の工程が必要となり、これによってもコスト
高となる。Further, when a resin film including a PVB resin is thermocompression-bonded to a glass plate, a batch-type process for removing residual air bubbles in the resin is required, such as autoclave treatment or vacuum heating. This also increases costs.
【００１８】さらに製造上の問題以外にも、これらのフ
ッ素樹脂は、透明性の高いものが得られ難い傾向にあ
り、そのため厚みの大きい樹脂フィルムを使用すると、
防火安全ガラスの外観が、少し乳白色を帯びて、透過率
を損なうという難点もある。In addition to the problem of production, these fluororesins tend to be difficult to obtain with high transparency. Therefore, when a resin film having a large thickness is used,
There is also a problem that the appearance of the fire safety glass is slightly milky and impairs the transmittance.
【００１９】本発明は、上記事情に鑑みなされたもので
あり、火災等が起きて加熱されても、フッ素樹脂フィル
ムから発生する分解ガスの圧力によってガラス板が破裂
することがなく、ガラス板とフッ素樹脂フィルムとの熱
圧着が容易であり、しかも透明性の高い防火合わせガラ
ス板の取付構造を提供することを目的とするものであ
る。The present invention has been made in view of the above circumstances, and even if a fire or the like occurs and the glass plate is heated, the glass plate does not burst due to the pressure of the decomposition gas generated from the fluororesin film, and the glass plate and the glass plate are not broken. An object of the present invention is to provide a mounting structure for a fire-resistant laminated glass plate that is easily heat-pressed with a fluororesin film and has high transparency.
【００２０】[0020]
【課題を解決するための手段】本発明の防火合わせガラ
ス板の取付構造は、少なくとも１枚の防火ガラス板を含
む複数枚のガラス板が、鎖状の分子構造のみからなるフ
ッ素樹脂フィルムを介して貼り合わされてなる防火合わ
せガラス板の周縁部を、枠体の取付溝内に嵌め込んでな
る防火合わせガラス板の取付構造であって、フッ素樹脂
フィルムが３種類以上のモノマーの共重合体から形成さ
れてなり、且つ、フッ素樹脂フィルムの分解温度が、フ
ッ素樹脂フィルムとガラス板との剥離温度よりも高く、
防火合わせガラス板と取付構造の内壁との間隙に、熱可
塑性を有する充填材が充填されてなり、充填材がフッ素
樹脂フィルムの分解温度よりも低温で軟化することを特
徴とする。According to the present invention, a plurality of glass sheets including at least one fire-resistant glass sheet are interposed via a fluororesin film composed of only a chain-like molecular structure. A mounting structure for a fire-resistant laminated glass plate, in which a peripheral portion of the fire-resistant laminated glass plate, which is bonded together, is fitted into a mounting groove of a frame, wherein the fluororesin film is made of a copolymer of three or more types of monomers. Formed, and the decomposition temperature of the fluororesin film is higher than the peeling temperature between the fluororesin film and the glass plate,
A gap between the fireproof laminated glass plate and the inner wall of the mounting structure is filled with a filler having thermoplasticity, and the filler softens at a temperature lower than the decomposition temperature of the fluororesin film.
【００２１】また本発明においては、鎖状の分子構造の
みからなるフッ素樹脂フィルムが、テトラフルオロエチ
レン、ヘキサフルオロプロピレンおよびビニリデンフル
オライドのモノマーの共重合体から形成されてなること
を特徴とする。Further, the present invention is characterized in that the fluororesin film having only a chain molecular structure is formed from a copolymer of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride monomers.
【００２２】本発明において使用する防火ガラス板とし
ては、耐熱性結晶化ガラス、網入りガラス、強化ボロシ
リケートガラス、強化ソーダ石灰ガラス等建設省告示第
１１２５号の防火試験に合格する透明ガラス板が使用可
能であるが、耐熱性と外観を考慮すると、Ｌｉ2 Ｏ−Ａ
ｌ2 Ｏ3 −ＳｉＯ2 系耐熱性透明結晶化ガラスが好まし
い。特に重量百分率で、Ｌｉ2 Ｏ ３〜６％、Ａｌ2 Ｏ
3 １７〜３５％、ＳｉＯ2 ５５〜７０％、ＴｉＯ2
１〜３％、ＺｒＯ2 １〜４％、Ｐ2 Ｏ5０．０１〜
５％、Ｎａ2 Ｏ ０〜４％、Ｋ2 Ｏ ０〜４％の組成を
有し、β−石英固溶体結晶を析出し、−１０〜１５×１
０-7／℃（３０〜７５０℃）の熱膨張係数を有する耐熱
性透明結晶化ガラス板を使用すると、非常に優れた防火
性能が得られるため好ましい。The fire-resistant glass plate used in the present invention includes a heat-resistant crystallized glass, a netted glass, a tempered borosilicate glass, a tempered soda-lime glass and the like, and a transparent glass plate which passes the fire test of Notification No. 1125 of the Ministry of Construction. Although it can be used, considering heat resistance and appearance, Li 2 O-A
l 2 O 3 -SiO 2 based heat resistant transparent crystallized glass is preferable. In particular, by weight percentage, Li 2 O 3-6%, Al 2 O
3 17~35%, SiO 2 55~70% , TiO 2
1~3%, ZrO 2 1~4%, P 2 O 5 0.01~
It has a composition of 5%, Na 2 O 0-4%, K 2 O 0-4%, and precipitates a β-quartz solid solution crystal.
It is preferable to use a heat-resistant transparent crystallized glass plate having a coefficient of thermal expansion of 0 -7 / ° C (30 to 750 ° C), since extremely excellent fire protection performance can be obtained.
【００２３】本発明では、全てのガラス板を防火ガラス
板としても良いが、材料コストの低減を図る目的で、ガ
ラス板の一部を、安価なソーダ石灰ガラス板やボロシリ
ケートガラス板とすることも可能である。In the present invention, all the glass plates may be fire-resistant glass plates, but in order to reduce material costs, a part of the glass plates may be made of inexpensive soda-lime glass plate or borosilicate glass plate. Is also possible.
【００２４】また本発明のフッ素樹脂フィルムを構成す
るモノマーとしては、例えばテトラフルオロエチレン
（ＴＦＥ）、ヘキサフルオロプロピレン（ＨＦＰ）、ビ
ニリデンフルオライド（ＶＤＦ）、ポリクロロトリフル
オロエチレン（ＰＣＴＦＥ）、ビニルフルオライド（Ｖ
Ｆ）、パーフルオロアルキルビニルエーテル（ＰＦＡ）
等が使用可能であるが、特にテトラフルオロエチレン、
ヘキサフルオロプロピレン、ビニリデンフルオライドの
モノマーの共重合体（ＴＨＶ）からなるフッ素樹脂が、
融点が低いため好適である。また上記のモノマーのフッ
素原子の一部を水素原子で置換したものも使用可能であ
る。さらにエチレン等の汎用モノマーと上記のモノマー
との共重合体も使用可能である。The monomers constituting the fluororesin film of the present invention include, for example, tetrafluoroethylene (TFE), hexafluoropropylene (HFP), vinylidene fluoride (VDF), polychlorotrifluoroethylene (PCTFE), vinyl fluoride. Ride (V
F), perfluoroalkyl vinyl ether (PFA)
Etc. can be used, especially tetrafluoroethylene,
Hexafluoropropylene, a fluororesin composed of a copolymer of monomers of vinylidene fluoride (THV),
It is suitable because of its low melting point. Further, those obtained by substituting a part of the fluorine atoms of the above monomers with hydrogen atoms can also be used. Further, copolymers of general-purpose monomers such as ethylene and the above-mentioned monomers can also be used.
【００２５】本発明で使用するフッ素樹脂フィルムは、
上記したいずれの共重合体を使用する場合でも、その分
解温度が、それとガラス板との剥離温度よりも高くなる
ように制御する必要がある。因に剥離温度とは、ガラス
板の表面に接着された樹脂の温度を上昇させた時、ガラ
ス板との接着性を失う時の温度のことである。The fluororesin film used in the present invention comprises:
When using any of the above-mentioned copolymers, it is necessary to control the decomposition temperature thereof to be higher than the temperature at which it is separated from the glass plate. The peeling temperature is a temperature at which the adhesiveness to the glass plate is lost when the temperature of the resin bonded to the surface of the glass plate is increased.
【００２６】さらに本発明で使用する充填材としては、
発火性を有することなく、しかも使用するフッ素樹脂フ
ィルムの分解温度よりも低温で軟化する材料であればい
ずれも使用可能であり、具体的には、熱可塑性樹脂が適
している。熱可塑性樹脂としては、ポリ塩化ビニル、ポ
リエチレン、ポリプロピレン、フロリーネーテッドエチ
レンプロピレン（ＦＥＰ）等が使用できる。これらの樹
脂は、一定以上の熱を受けると、軟化変形したり、体積
収縮するといった特性を有しており、必要に応じてこれ
らの樹脂に難燃剤やセラミックファイバー等の無機繊維
を含有させても良い。Further, as the filler used in the present invention,
Any material can be used as long as it has no ignitability and softens at a temperature lower than the decomposition temperature of the fluororesin film used. Specifically, a thermoplastic resin is suitable. As the thermoplastic resin, polyvinyl chloride, polyethylene, polypropylene, fluorinated ethylene propylene (FEP) and the like can be used. These resins have the property of undergoing softening deformation and volume shrinkage when subjected to heat of a certain level or more, and may be made to contain inorganic fibers such as flame retardants and ceramic fibers as necessary. Is also good.
【００２７】特に熱可塑性樹脂の発泡体を基材とし、そ
の両面に粘着剤が塗布された両面粘着テープは、実質的
に不燃性であり、また施工が容易であるため、本発明の
充填材として好適である。Particularly, a double-sided pressure-sensitive adhesive tape having a thermoplastic resin foam as a base material and coated with a pressure-sensitive adhesive on both sides thereof is substantially nonflammable and easy to apply. It is suitable as.
【００２８】尚、本発明では、加熱された時に各ガラス
板の間隔を広げるという作用を損なわない限り、充填材
の外側に少量の不燃性シーラント、例えば信越化学株式
会社製の「シーラント７４」や東レダウコーニングシリ
コーン株式会社製の「ＳＨ７９４」等を充填することが
可能である。In the present invention, a small amount of non-combustible sealant such as "Sealant 74" manufactured by Shin-Etsu Chemical Co., Ltd. is used as long as it does not impair the effect of increasing the distance between the glass plates when heated. "SH794" manufactured by Toray Dow Corning Silicone Co., Ltd. or the like can be filled.
【００２９】[0029]
【作用】本発明の防火合わせガラス板の取付構造による
と、火災時に高温に曝されても樹脂フィルムの分解温度
が、樹脂フィルムとガラス板との剥離温度より高いた
め、熱分解ガスが発生する前に、樹脂フィルムとガラス
板との接着性が失われ、ガラス板の間から熱分解ガスが
容易に抜けやすくなる。According to the mounting structure of the fireproof laminated glass plate of the present invention, the decomposition temperature of the resin film is higher than the peeling temperature between the resin film and the glass plate even when exposed to a high temperature in the event of a fire, so that a pyrolysis gas is generated. Before that, the adhesiveness between the resin film and the glass plate is lost, so that the pyrolysis gas easily escapes from between the glass plates.
【００３０】また本発明では、フッ素樹脂フィルムが熱
分解し、ガスが発生する前に充填材が軟化あるいは分解
するため、フッ素樹脂フィルムから発生した熱分解ガス
が外部に抜けるのを妨げることがない。すなわち熱分解
ガスが発生すると、ガラス板の間隔が広がり、外部に分
解ガスが抜けるため、ガラス板が破裂することはない。Further, in the present invention, the filler is softened or decomposed before the fluororesin film is thermally decomposed and gas is generated, so that the pyrolysis gas generated from the fluororesin film is not prevented from leaking to the outside. . That is, when the pyrolysis gas is generated, the interval between the glass plates is widened and the decomposition gas escapes outside, so that the glass plate does not burst.
【００３１】本発明で使用する３種類以上のモノマーを
共重合させることによって形成されたフッ素樹脂フィル
ムは、上記したようなフッ素樹脂フィルムの優れた特性
を維持したまま、１１０〜１８０℃という低い融点を有
している。The fluororesin film formed by copolymerizing three or more monomers used in the present invention has a low melting point of 110 to 180 ° C. while maintaining the excellent properties of the fluororesin film as described above. have.
【００３２】因に１種類あるいは２種類のモノマーから
作製されたフッ素樹脂フィルムの融点は、２００〜３３
０℃であり、一般の合わせガラスに使用されるＰＶＢ樹
脂フィルムの融点（約１３０℃）に比べてかなり高い
が、本発明におけるフッ素樹脂フィルムは、ＰＶＢ樹脂
フィルムとほぼ同様の温度で熱圧着することが可能であ
るので、ガラス板が熱によって割れることがなく、また
特別な熱圧着設備が不要である。The melting point of the fluororesin film prepared from one or two kinds of monomers is 200 to 33.
Although it is 0 ° C., which is considerably higher than the melting point (about 130 ° C.) of a PVB resin film used for general laminated glass, the fluororesin film of the present invention is thermocompression-bonded at substantially the same temperature as the PVB resin film. As a result, the glass sheet is not broken by heat and no special thermocompression bonding equipment is required.
【００３３】尚、熱圧着の方法としては、真空加熱やオ
ートクレーブ処理といった合わせガラスの製造方法とし
て一般的に使用されているバッチ式の方法が適用できる
他、バッチ式の工程を必要としないロール加圧法による
連続生産も可能であり、安価に生産することができると
いう利点がある。As the thermocompression bonding method, a batch method generally used as a method for manufacturing a laminated glass, such as vacuum heating or autoclave treatment, can be applied. Continuous production by a pressure method is also possible, and there is an advantage that it can be produced at low cost.
【００３４】さらに本発明で使用するフッ素樹脂フィル
ムの場合、３種類以上のモノマーを共重合させる際、重
合の割合を制御することによって、１種類あるいは２種
類のモノマーからなるフッ素樹脂フィルムよりも透明性
の高いフィルムを得ることが可能となる。Further, in the case of the fluororesin film used in the present invention, when three or more monomers are copolymerized, the ratio of polymerization is controlled so that the fluororesin film is more transparent than a fluororesin film composed of one or two monomers. It is possible to obtain a film having high properties.
【００３５】さらに本発明の防火合わせガラス板は、フ
ッ素樹脂フィルムの両面にガラス板が配置されているた
め、外部から応力が加わっても、スクラッチ等によるフ
ィルムの劣化が起こりにくく、また周囲の環境によって
フィルムの特性が低下することもない。Further, in the fireproof laminated glass plate of the present invention, since the glass plates are disposed on both sides of the fluororesin film, even if stress is applied from the outside, the film is unlikely to be deteriorated due to scratches and the like, and the surrounding environment is not affected. Thus, the characteristics of the film do not deteriorate.
【００３６】[0036]
【実施例】以下、本発明の防火合わせガラス板の取付構
造を実施例及び比較例に基づいて詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The mounting structure of a fireproof laminated glass plate of the present invention will be described in detail below with reference to examples and comparative examples.
【００３７】（実施例１）まずテトラフルオロエチレン
（ＴＦＥ）４０重量％、ヘキサフルオロプロピレン（Ｈ
ＥＰ）２０重量％、ビニリデンフルオライド（ＶＤＦ）
４０重量％の共重合体からなり、厚さ２５０μの鎖状の
分子構造のみからなるフッ素樹脂フィルムと、２０００
×９００×５ｍｍの寸法を有し、熱膨張係数が−５×１
０-7／℃の耐熱性透明結晶化ガラス板（ファイアライ
ト：日本電気硝子株式会社製）を２枚準備した。このフ
ッ素樹脂フィルムの分解温度は、４００℃であり、これ
とガラス板との剥離温度は、２００℃である。Example 1 First, 40% by weight of tetrafluoroethylene (TFE) and hexafluoropropylene (H
EP) 20% by weight, vinylidene fluoride (VDF)
A fluororesin film composed of only 40% by weight of a copolymer and having a thickness of 250 μm and composed of only a chain-like molecular structure;
It has dimensions of × 900 × 5mm and a coefficient of thermal expansion of -5 × 1
Two heat-resistant transparent crystallized glass plates (firelite: manufactured by NEC Corporation) of 0 -7 / ° C were prepared. The decomposition temperature of this fluororesin film is 400 ° C., and the peeling temperature between this and the glass plate is 200 ° C.
【００３８】次に上記した２枚の耐熱性透明結晶化ガラ
ス板の間に、上記のフッ素樹脂フィルムを配置した後、
熱圧着することによって防火合わせガラス板を得たとこ
ろ、透明の外観を呈していた。Next, after disposing the above-mentioned fluororesin film between the above-mentioned two heat-resistant transparent crystallized glass plates,
When a fireproof laminated glass plate was obtained by thermocompression bonding, it had a transparent appearance.
【００３９】尚、熱圧着は、１２ｋｇｆ／ｃｍ2 の圧力
のもとで、必要温度（１４０℃）で１５分間保持するこ
とによって行った。この必要温度とは、ガラス板とフィ
ルムが、十分な接着状態を得るために必要な温度のこと
である。The thermocompression bonding was carried out at a required temperature (140 ° C.) for 15 minutes under a pressure of 12 kgf / cm 2 . The required temperature is a temperature required for obtaining a sufficient bonding state between the glass plate and the film.
【００４０】その後、図１に示すようにこの防火合わせ
ガラス板１０の周縁部を、枠体１１の取付溝１１ａに嵌
め込み、防火合わせガラス板１０と枠体１１の取付溝１
１ａの内壁との間隙（約３ｍｍ）に充填材１４を充填し
た。充填材１４としては、発泡ポリ塩化ビニル（米国ノ
ートン株式会社製ノルシール）を基材とする両面粘着テ
ープ（厚み３ｍｍ）を使用した、尚、枠体１１の取付溝
１１ａの底部には、予めセッティングブロック１２を配
置し、その上に防火合わせガラス板１０を載置した。Then, as shown in FIG. 1, the peripheral edge of the fire-resistant laminated glass plate 10 is fitted into the mounting groove 11a of the frame 11, and the mounting groove 1a of the fire-resistant laminated glass plate 10 and the frame 11 is mounted.
The filler (14 mm) was filled in the gap (about 3 mm) with the inner wall of 1a. As the filler 14, a double-sided adhesive tape (thickness: 3 mm) based on foamed polyvinyl chloride (Nor Seal manufactured by Norton Corporation, USA) was used. The bottom of the mounting groove 11a of the frame 11 was previously set. The block 12 was arranged, and the fireproof laminated glass plate 10 was placed thereon.
【００４１】このような取付構造を有する防火合わせガ
ラス板１０を、建設省告示１１２５号に従い甲種防火戸
の試験に供したところ、約１６０℃で充填材１４が軟化
した後、フッ素樹脂フィルム１０ｂが分解し、ガスが発
生したが、各防火ガラス板１０ａ、１０ａの間隔が広が
り、分解ガスが外部に抜けたため、いずれの防火ガラス
板１０ａ、１０ａも破裂することはなかった。結果的に
この防火合わせガラス板１０は、３時間以上に亙って割
れることがなかった。When the fireproof laminated glass sheet 10 having such an attachment structure was subjected to a test for class A fire door according to the notification of the Ministry of Construction No. 1125, after the filler 14 was softened at about 160 ° C., the fluororesin film 10b was Although it decomposed and gas was generated, the interval between the respective fireproof glass plates 10a and 10a was widened and the decomposed gas leaked to the outside, so that none of the fireproof glass plates 10a and 10a was ruptured. As a result, the fireproof laminated glass sheet 10 did not break for more than 3 hours.
【００４２】（実施例２）充填材として、発泡ポリエチ
レンフォーム材（旭化成株式会社製サンテクフォーム）
を基材とする両面粘着テープを使用した以外は、全て実
施例１と同様の取付構造を有する防火合わせガラス板を
作製し、これを実施例１と同様の試験に供したところ、
約１５０℃で充填材が軟化した後、フッ素樹脂フィルム
が分解し、ガスが発生したが、各防火ガラス板の間隔が
広がり、分解ガスが外部に抜けたため、いずれの防火ガ
ラス板も破裂することはなかった。結果的にこの防火合
わせガラス板は、３時間以上に亙って割れることがなか
った。(Example 2) As a filler, a foamed polyethylene foam material (Suntech foam manufactured by Asahi Kasei Corporation)
Except for using a double-sided pressure-sensitive adhesive tape having a base material, a fireproof laminated glass plate having the same mounting structure as in Example 1 was prepared and subjected to the same test as in Example 1.
After the filler softens at about 150 ° C, the fluororesin film decomposes and gas is generated, but the distance between each fire prevention glass plate is widened and the decomposition gas escapes to the outside, so any fire prevention glass plate should burst. There was no. As a result, the fireproof laminated glass sheet did not break for more than 3 hours.
【００４３】（比較例１）実施例１と同様の耐熱性透明
結晶化ガラス板の２枚と、テトラフルオロエチレン（Ｔ
ＦＥ）８０重量％、ヘキサフルオロプロピレン（ＨＦ
Ｐ）２０重量％の共重合体からなり、厚さ２５０μの鎖
状の分子構造のみからなるフッ素樹脂フィルムを準備し
た。このフッ素樹脂フィルムの分解温度は、４２０℃で
あり、これとガラス板との剥離温度は、３００℃であ
る。(Comparative Example 1) Two heat-resistant transparent crystallized glass plates as in Example 1 and tetrafluoroethylene (T
FE) 80% by weight, hexafluoropropylene (HF
P) A fluororesin film consisting of 20% by weight of a copolymer and having a thickness of 250 μm and comprising only a chain-like molecular structure was prepared. The decomposition temperature of this fluororesin film is 420 ° C., and the peeling temperature between this and the glass plate is 300 ° C.
【００４４】次に各ガラス板の間にフィルムを配置して
から熱圧着することによって防火合わせガラス板を得た
ところ、やや乳白色を帯びた外観を呈していた。Next, a film was placed between the glass plates and then thermocompression-bonded to obtain a fireproof laminated glass plate, which had a slightly milky appearance.
【００４５】尚、熱圧着は、１２ｋｇｆ／ｃｍ2 の圧力
のもとで、必要温度（３００℃）で１５分間保持するこ
とによって行った。The thermocompression bonding was carried out at a required temperature (300 ° C.) for 15 minutes under a pressure of 12 kgf / cm 2 .
【００４６】すなわちこの防火合わせガラス板は、２種
類のモノマーの共重合体からなるフッ素樹脂フィルムを
使用しているため、実施例１、２の防火合わせガラスに
比べて高温で熱圧着する必要があり、しかも透明性に劣
っていた。That is, since this fire-resistant laminated glass plate uses a fluororesin film made of a copolymer of two kinds of monomers, it is necessary to perform thermocompression bonding at a higher temperature than the fire-resistant laminated glass of Examples 1 and 2. Yes, and inferior in transparency.
【００４７】そして実施例１と同様の取付構造を有する
防火合わせガラス板を作製し、これを実施例１と同様の
試験に供したところ、約１６０℃で充填材が軟化した
後、フッ素樹脂フィルムが分解し、ガスが発生したが、
各防火ガラス板の間隔が広がり、分解ガスが抜けたた
め、いずれの防火ガラス板も破裂することはなかった。
結果的にこの防火合わせガラスは、３時間以上に亙って
割れることがなかった。Then, a fireproof laminated glass plate having the same mounting structure as in Example 1 was prepared and subjected to the same test as in Example 1. After the filler was softened at about 160 ° C., the fluororesin film was Decomposed and generated gas,
Since the distance between the fire prevention glass plates was widened and the decomposition gas was released, none of the fire prevention glass plates was ruptured.
As a result, the fireproof laminated glass did not break for more than 3 hours.
【００４８】（比較例２）フッ素樹脂フィルムに代え
て、ＰＶＢ樹脂フィルムを使用し、また充填材として、
セラミックファイバー及びひる石を含有した熱膨張性材
料を使用した以外は、全て実施例１と同様の取付構造を
有する防火合わせガラス板を作製した。ＰＶＢ樹脂フィ
ルムの分解温度は、１９０℃であり、これとガラス板と
の剥離温度は、２００℃である。(Comparative Example 2) A PVB resin film was used in place of the fluororesin film.
Except for using a heat-expandable material containing ceramic fiber and vermiculite, a fireproof laminated glass plate having the same mounting structure as in Example 1 was produced. The decomposition temperature of the PVB resin film is 190 ° C., and the peeling temperature between the PVB resin film and the glass plate is 200 ° C.
【００４９】これを実施例１と同様の試験に供したとこ
ろ、約１９０℃でＰＶＢ樹脂フィルムが分解し、ガスが
発生したが、各防火ガラス板の間隔は広がらず、分解ガ
スが外部に抜けなかったため、２枚の防火ガラス板とも
破裂し、貫通孔が形成された上、激しく発火した。When this was subjected to the same test as in Example 1, the PVB resin film was decomposed at about 190 ° C., and gas was generated. However, the interval between the fireproof glass plates was not widened, and the decomposed gas escaped to the outside. As a result, the two fire-resistant glass plates ruptured, forming a through-hole and igniting violently.
【００５０】次に実施例１、２及び比較例１の防火合わ
せガラス板の耐衝撃性を、ＪＩＳＲ ３２０５に基いて
測定した。すなわち図３に示すように各防火合わせガラ
ス板Ｇを、鉄製枠１５の所定箇所に固定し、支点１５ａ
から錘１６の重心までの距離が、１５２４ｍｍになるよ
うに設定した後、錘１６を垂直の位置から徐々に落下高
さＨを大きくしながら、防火合わせガラス板Ｇに当てる
ことによって衝撃を加え、直径７５ｍｍの貫通孔が生じ
る直前の最大高さを求めた。落下高さＨが大きいほど、
耐衝撃性に優れていることになるが、いずれの防火合わ
せガラス板も落下高さＨが１４０ｃｍであり、優れた値
を示した。Next, the impact resistance of the fireproof laminated glass sheets of Examples 1 and 2 and Comparative Example 1 was measured in accordance with JISR 3205. That is, as shown in FIG. 3, each fire-prevention laminated glass plate G is fixed to a predetermined portion of the iron frame 15, and the fulcrum 15a
After setting the distance from to the center of gravity of the weight 16 to be 1524 mm, a shock is applied by applying the weight 16 to the fireproof laminated glass sheet G while gradually increasing the drop height H from the vertical position, The maximum height immediately before the formation of a through-hole having a diameter of 75 mm was determined. The larger the drop height H,
Although it was found to be excellent in impact resistance, each of the fireproof laminated glass sheets had a drop height H of 140 cm, showing an excellent value.
【００５１】さらに分光光度計を用い、実施例１と比較
例１の防火合わせガラス板の可視光線の透過率を測定
し、その結果を図４に示した。図中、Ａは実施例１の防
火合わせガラス板の透過率曲線を示し、またＢは比較例
１の防火合わせガラス板の透過率曲線を示しており、可
視光域全域に亙って、実施例１の防火合わせガラス板の
方が、比較例１の防火合わせガラス板よりも透過率が高
いことが理解できる。Further, the transmittance of visible light of the fireproof laminated glass plates of Example 1 and Comparative Example 1 was measured using a spectrophotometer, and the results are shown in FIG. In the figure, A shows the transmittance curve of the fireproof laminated glass plate of Example 1, and B shows the transmittance curve of the fireproof laminated glass plate of Comparative Example 1. The transmittance curve was obtained over the entire visible light range. It can be understood that the fireproof laminated glass sheet of Example 1 has a higher transmittance than the fireproof laminated glass sheet of Comparative Example 1.
【００５２】尚、樹脂フィルムの分解温度は、熱天秤を
用いて測定し、樹脂フィルムとガラス板との剥離温度
は、引張り試験機を用いて測定した。The decomposition temperature of the resin film was measured using a thermobalance, and the peeling temperature between the resin film and the glass plate was measured using a tensile tester.
【００５３】[0053]
【発明の効果】以上のように本発明の防火合わせガラス
板の取付構造によると、火災時等に高温に曝されても、
フッ素樹脂樹脂フィルムの分解温度が、樹脂フィルムと
ガラス板との剥離温度より高いため、分解ガスが発生す
る前に、樹脂フィルムとガラス板との接着性が失われ、
ガラス板の間から分解ガスが容易に抜けることになる。As described above, according to the structure for mounting a fire-resistant laminated glass plate of the present invention, even if it is exposed to a high temperature at the time of fire, etc.
Since the decomposition temperature of the fluororesin resin film is higher than the peeling temperature between the resin film and the glass plate, before the decomposition gas is generated, the adhesiveness between the resin film and the glass plate is lost,
The decomposed gas easily escapes from between the glass plates.
【００５４】またフッ素樹脂フィルムが熱分解する前に
充填材が軟化あるいは分解するため、フッ素樹脂フィル
ムから分解ガスが発生すると、各防火ガラス板の間隔が
広がり、分解ガスが抜けるため、ガラス板が破裂するこ
とがない。Further, the filler is softened or decomposed before the fluororesin film is thermally decomposed, so that when a decomposed gas is generated from the fluororesin film, the interval between the respective fireproof glass plates is widened and the decomposed gas is released, so that the glass plate is removed. Does not burst.
【００５５】また本発明の防火合わせガラス板は、少な
くとも１枚の防火ガラス板を有し、且つ、鎖状の分子構
造のみからなるフッ素樹脂フィルムによって複数枚のガ
ラス板が接着されているため、長時間に亙って炎や煙を
遮断することが可能である。Further, the fireproof laminated glass sheet of the present invention has at least one fireproof glass sheet and a plurality of glass sheets are bonded by a fluororesin film having only a chain molecular structure. It is possible to block fire and smoke for a long time.
【００５６】さらに本発明では、３種類以上のモノマー
の共重合体から形成されてなるフッ素樹脂フィルムを使
用するため、一般の合わせガラスの熱圧着温度に近似し
た温度、すなわち１１０〜１８０℃という低温で熱圧着
が可能であるため、ガラス板が熱によって割れることが
なく、また特別な熱圧着設備が不要であり、ロール加圧
による連続生産も可能である。Further, in the present invention, since a fluororesin film formed from a copolymer of three or more types of monomers is used, a temperature close to the thermocompression bonding temperature of general laminated glass, that is, a low temperature of 110 to 180 ° C. , The glass plate is not broken by heat, no special thermocompression equipment is required, and continuous production by roll pressing is also possible.
【００５７】しかも本発明で使用するフッ素樹脂フィル
ムは、重合の割合を制御することによって、透明性が高
くなり、防火合わせガラス板の透過率を高く維持するこ
とが可能となる。Further, the fluororesin film used in the present invention has high transparency by controlling the ratio of polymerization, so that the transmittance of the fireproof laminated glass plate can be kept high.
【図１】本発明の防火合わせガラス板の取付構造を示す
概略断面図である。FIG. 1 is a schematic sectional view showing a mounting structure of a fireproof laminated glass sheet of the present invention.
【図２】従来の防火合わせガラス板の取付構造を示す概
略断面図である。FIG. 2 is a schematic cross-sectional view showing a conventional fireproof laminated glass plate mounting structure.
【図３】防火合わせガラス板の耐衝撃性の測定方法を示
す説明図である。FIG. 3 is an explanatory diagram showing a method for measuring the impact resistance of a fireproof laminated glass sheet.
【図４】実施例１と比較例１の防火合わせガラス板の可
視光線の透過率を示すグラフである。FIG. 4 is a graph showing the transmittance of visible light of the fireproof laminated glass plates of Example 1 and Comparative Example 1.
１０ 防火合わせガラス板 １０ａ 防火ガラス板 １０ｂ フッ素樹脂フィルム １１ 枠体 １２ セッティングブロック １３ 不燃性シーラント材 １４ 充填材 １５ 鉄製枠 １６ 錘 REFERENCE SIGNS LIST 10 fire-prevention laminated glass plate 10 a fire-prevention glass plate 10 b fluororesin film 11 frame 12 setting block 13 non-combustible sealant material 14 filler 15 iron frame 16 weight
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E06B 5/00 E06B 5/16 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. 7 , DB name) E06B 5/00 E06B 5/16
Claims (2)
数枚のガラス板が、鎖状の分子構造のみからなるフッ素
樹脂フィルムを介して貼り合わされてなる防火合わせガ
ラス板の周縁部を、枠体の取付溝内に嵌め込んでなる防
火合わせガラス板の取付構造であって、フッ素樹脂フィ
ルムが３種類以上のモノマーの共重合体から形成されて
なり、且つ、フッ素樹脂フィルムの分解温度が、フッ素
樹脂フィルムとガラス板との剥離温度よりも高く、防火
合わせガラス板の周縁部と枠体の取付溝の内壁との間隙
に熱可塑性を有する充填材が充填されてなり、充填材が
フッ素樹脂フィルムの分解温度よりも低温で軟化するこ
とを特徴とする防火合わせガラス板の取付構造。1. A peripheral body of a fireproof laminated glass plate, in which a plurality of glass plates including at least one fireproof glass plate are bonded via a fluororesin film having only a chain molecular structure, to a frame The mounting structure of a fire-resistant laminated glass plate fitted in the mounting groove of the above, wherein the fluororesin film is formed from a copolymer of three or more types of monomers, and the decomposition temperature of the fluororesin film is It is higher than the peeling temperature between the resin film and the glass plate, and the gap between the peripheral edge of the fireproof laminated glass plate and the inner wall of the mounting groove of the frame is filled with a thermoplastic filler. A fire-resistant laminated glass plate mounting structure characterized in that it softens at a temperature lower than the decomposition temperature of the glass.
フィルムが、テトラフルオロエチレン、ヘキサフルオロ
プロピレンおよびビニリデンフルオライドのモノマーの
共重合体から形成されてなることを特徴とする請求項１
記載の防火合わせガラス板の取付構造。2. A fluororesin film comprising only a chain molecular structure is formed from a copolymer of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride monomers.
The mounting structure of the fireproof laminated glass plate described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18817196A JP3248670B2 (en) | 1996-06-28 | 1996-06-28 | Mounting structure of fireproof laminated glass plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18817196A JP3248670B2 (en) | 1996-06-28 | 1996-06-28 | Mounting structure of fireproof laminated glass plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1018724A JPH1018724A (en) | 1998-01-20 |
| JP3248670B2 true JP3248670B2 (en) | 2002-01-21 |
Family
ID=16219008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18817196A Expired - Lifetime JP3248670B2 (en) | 1996-06-28 | 1996-06-28 | Mounting structure of fireproof laminated glass plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3248670B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4390516B2 (en) * | 2003-09-30 | 2009-12-24 | 日本板硝子株式会社 | Laminated glass |
| JP2006124040A (en) * | 2004-10-26 | 2006-05-18 | Fujitec Co Ltd | Door with glass window of elevator |
| JP5188509B2 (en) * | 2007-12-06 | 2013-04-24 | 三菱電機株式会社 | Elevator hall door |
| JP5465054B2 (en) * | 2009-06-16 | 2014-04-09 | 株式会社Ｌｉｘｉｌ | Opening device |
| JP5461647B2 (en) * | 2012-09-24 | 2014-04-02 | Ｙｋｋ Ａｐ株式会社 | Joinery |
| JP7017920B2 (en) * | 2017-12-19 | 2022-02-09 | 旭ビルウォール株式会社 | Chemically tempered glass and fire protection equipment using it |
-
1996
- 1996-06-28 JP JP18817196A patent/JP3248670B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1018724A (en) | 1998-01-20 |
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