JP3223928B2 - Fire resistant composite board - Google Patents
Fire resistant composite boardInfo
- Publication number
- JP3223928B2 JP3223928B2 JP26550592A JP26550592A JP3223928B2 JP 3223928 B2 JP3223928 B2 JP 3223928B2 JP 26550592 A JP26550592 A JP 26550592A JP 26550592 A JP26550592 A JP 26550592A JP 3223928 B2 JP3223928 B2 JP 3223928B2
- Authority
- JP
- Japan
- Prior art keywords
- fire
- phenol foam
- core material
- composite plate
- foam
- 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 - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Building Environments (AREA)
- Finishing Walls (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は耐火性を要求される建
築、構築物の内壁材、外壁材、屋根下地材、防火戸、間
仕切り材等として有用で、かつ軽量で断熱性、耐火性、
機械強度のある耐火複合板に関するものである。BACKGROUND OF THE INVENTION The present invention is useful as an inner wall material, an outer wall material, a roof base material, a fire door, a partition material, etc. of a building or a building required to have fire resistance.
The present invention relates to a fire-resistant composite plate having mechanical strength.
【０００２】[0002]
【従来の技術】一般に耐熱性のある内、外壁用複合板と
しては、実開昭５７−１８５５３５号公報、実開昭
５８−１５３８号公報、実開昭６３−１５４４４号公
報、および特公平２−１８２３０号公報、等が知られ
ている。2. Description of the Related Art In general, heat-resistant composite plates for outer walls are disclosed in Japanese Utility Model Laid-Open Nos. 57-185535, 58-1538, 63-15444 and 63-2544. No. -18230 is known.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、これら
複合板においては下記するような諸点において大きな欠
点があった。すなわち、前記の複合板では不織布がガ
ラス繊維等の薄い不織布であり、フェノールフォームが
反対面、所謂、不燃基材との接着面に漏洩して、接着剤
の機能を発揮できない不利があった。また、前記の複
合板では軽量骨材を細密に敷設し、これをフェノールフ
ォームで不燃基材と一体化し、耐火性を改善する構成で
あるが、芯材となるフェノールフォーム自体の接着力が
あまり強くなく、不燃基材から芯材となるフェノールフ
ォームが剥離する欠点があった。さらに、前記に示す
複合板は硼酸ナトリウムを含浸させた不燃シートとフェ
ノールフォームを一体に固着し、かつ上記不燃シート上
に接着剤を介して不燃性の不通気層を一体に固着した建
築用板であるが、フェノールフォームの原料の不織布へ
の含浸が表面のみになりやすく、かつアルカリと酸の反
応系のためフォーム形成を阻害し、接着力の低下を招い
ていた。また、前記の複合板は面材と骨材含有のフェ
ノールフォームを一体化した構造であり、かつ面材と芯
材の一体化に融着を利用しているため、接着力に不安が
あった。さらに、前記した〜に示す複合板はフェノ
ールフォームと面材の一体化のための接着力に欠ける欠
点があった。また、フェノールフォーム形成時の縮合水
がフォーム形成の反応系を阻害し、均質な発泡組織の形
成が困難であり、断熱性、不燃基材との接着性に問題が
あった。However, these composite plates have major drawbacks in the following points. That is, in the above-described composite plate, the nonwoven fabric is a thin nonwoven fabric such as glass fiber, and the phenol foam leaks to the opposite surface, that is, the surface to be bonded to the non-combustible substrate, and has a disadvantage that the function of the adhesive cannot be exhibited. Further, in the above-mentioned composite board, a lightweight aggregate is laid finely, and this is integrated with a non-combustible base material using phenol foam to improve the fire resistance, but the adhesive strength of the phenol foam itself serving as the core material is not so high. There was a drawback that the phenol foam as a core material was peeled off from the non-combustible base material because it was not strong. Further, the composite board shown above is a building board in which a non-combustible sheet impregnated with sodium borate and a phenol foam are integrally fixed, and a non-combustible air-impermeable layer is integrally fixed on the non-combustible sheet via an adhesive. However, the impregnation of the raw material of the phenol foam into the nonwoven fabric is liable to occur only on the surface, and the reaction system of the alkali and the acid impedes the foam formation, resulting in a decrease in the adhesive strength. In addition, the composite plate has a structure in which the face material and the phenol foam containing the aggregate are integrated, and since the fusion of the face material and the core material is utilized, there is an anxiety in the adhesive strength. . Furthermore, the above-mentioned composite plates have a drawback that they lack adhesive strength for integrating the phenol foam and the face material. In addition, condensed water during the formation of the phenol foam inhibits the reaction system for the formation of the foam, making it difficult to form a uniform foamed structure, and causing problems in heat insulation and adhesion to the non-combustible substrate.
【０００４】[0004]
【課題を解決するための手段】本発明はこのような欠点
を除去するため、不燃基材間に芯材を形成した耐火複合
板において、上記芯材はレゾール型のフェノールフォー
ム樹脂の発泡体と軽量骨材からなり、かつ、レゾール型
のフェノールフォーム樹脂および軽量骨材にはもみ殻よ
りなる微粉粒物が混入されて発泡硬化されることにより
芯材が形成されており、不燃基材と芯材との一体化はフ
ェノールフォーム形成時の自己接着性により固着した耐
火複合板を提案するものである。SUMMARY OF THE INVENTION In order to eliminate such disadvantages, the present invention relates to a fire-resistant composite plate having a core material formed between non-combustible base materials, wherein the core material is made of a resol type phenol foam resin foam. The core material is made of lightweight aggregate, and resol type phenol foam resin and lightweight aggregate are mixed with fine particles of rice hulls and foam-hardened to form a core material. The integration with the material proposes a fire-resistant composite board fixed by self-adhesion during the formation of the phenol foam.
【０００５】[0005]
【実施例】以下に、図面を用いて本発明に係る耐火複合
板の一実施例について詳細に説明する。すなわち、図１
は本発明に係る耐火複合板の代表的な一例を示す断面図
であり、αは耐火複合板、１、２は不燃基材、３は芯
材、４はレゾール型のフェノールフォーム、５は軽量骨
材、６はもみ殻よりなる微粉粒物である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a fire-resistant composite plate according to the present invention. That is, FIG.
1 is a cross-sectional view showing a typical example of a fire-resistant composite plate according to the present invention, where α is a fire-resistant composite plate, 1, 2 is a non-combustible base material, 3 is a core material, 4 is a resol type phenol foam, and 5 is lightweight. Aggregate 6 is a finely divided material consisting of rice hulls.
【０００６】さらに説明すると、不燃基材１、２として
は例えば、アルミ、鉄、銅、ステンレス、チタン、アル
ミ・亜鉛合金メッキ鋼板、ガルバリウム鋼板、ガルファ
ン、ホーロー鋼板、フッ素樹脂塗装鋼板、クラッド鋼
板、サンドイッチ鋼板（制震鋼板）等、あるいはこれら
のカラー塗装金属板、もしくは石膏ボード等の無機質板
の一種以上よりなるものであり、これをロール成形、プ
レス成形、押出成形等して、例えば図２（ａ）〜（ｆ）
に示すような任意形状に成形したものでも良い。なお、
図２（ａ）〜（ｆ）では軽量骨材５は図示しない。More specifically, the non-combustible substrates 1 and 2 include, for example, aluminum, iron, copper, stainless steel, titanium, aluminum-zinc alloy-plated steel plate, galvalume steel plate, galfan, enameled steel plate, fluororesin coated steel plate, clad steel plate, It is made of one or more types of sandwich steel plate (damping steel plate) or the like, or a color-painted metal plate or an inorganic plate such as a gypsum board. (A) to (f)
May be formed into an arbitrary shape as shown in FIG. In addition,
2A to 2F, the lightweight aggregate 5 is not shown.
【０００７】芯材３はレゾール型のフェノールフォーム
４にもみ殻よりなる微粉粒物６を混入した発泡体に、も
み殻よりなる微粉粒物６を混入した軽量骨材５を細密、
均一、あるいは遍在等して形成したものよりなるもので
ある。The core material 3 is made of a resole-type phenol foam 4 mixed with fine particles 6 composed of rice hulls mixed with a foam and mixed with fine aggregates 6 composed of rice hulls.
It is made of a material formed uniformly or ubiquitously.
【０００８】レゾール型のフェノールフォーム（以下、
単にフェノールフォームという）４は、主に連続式の発
泡成形方法により製造されるものであり、他の合成樹脂
発泡体（プラスチックフォーム）に比べて不燃性、低発
煙性、低毒性の性能を有するものである。[0008] Resol type phenol foam (hereinafter referred to as
The phenol foam 4 is mainly manufactured by a continuous foam molding method, and has nonflammability, low smoke emission, and low toxicity compared to other synthetic resin foams (plastic foam). Things.
【０００９】軽量骨材５はパーライト粒、バーミキュラ
イト、シラスバルーン、石膏スラグ、タルク石、ガラス
ビーズ等からなり、芯材３の耐火性を向上させると共
に、耐火複合板αの機械的強度をも向上させるものであ
る。The lightweight aggregate 5 is made of perlite grains, vermiculite, shirasu balloon, gypsum slag, talc stone, glass beads, etc., and improves the fire resistance of the core material 3 and the mechanical strength of the fire resistant composite plate α. It is to let.
【００１０】もみ殻よりなる微粉粒物（以下、単にもみ
殻という）６は、もみの殻を微細に粉砕して微粉粒状
（１０〜２００メッシュ位）に形成したものであり、吸
水材、保水材、嵩上げ材、断熱材等の機能を有するもの
であり、フェノールフォーム４の原料となる樹脂に混入
しフェノールフォーム４を形成すると、副次的にフェノ
ールフォーム４の反応阻害防止材、不燃基材１、２との
接着強化材、芯材３の補強材、耐火材（炭化層の形成）
等の機能を有するものである。[0010] The fine-grained material (hereinafter simply referred to as rice hull) 6 composed of rice hulls is formed by finely pulverizing rice husks to form fine particles (about 10 to 200 mesh). It has a function as a material, a raising material, a heat insulating material, and the like. When the phenol foam 4 is formed by being mixed with a resin as a raw material of the phenol foam 4, a reaction inhibition preventing material of the phenol foam 4 and a non-combustible base material Adhesion reinforcing material with 1 and 2, reinforcing material of core material 3, refractory material (formation of carbonized layer)
And the like.
【００１１】さらに詳説すると、もみ殻６は図３に一部
分を拡大して示するようにフェノールフォーム４内に図
では均一に混入され、フェノールフォーム４形成時に生
成される水分をもみ殻６により吸水し、フェノールフォ
ーム４の発泡組織形成を阻害する水分を除去し、フェノ
ールフォーム４の発泡組織を均質にすることにより、芯
材３の機械的強度（圧縮強度の強化、脆性の低下）の向
上、断熱性の向上を図ると共に、高価なフェノールフォ
ーム４の使用量を低減しコストの低下を図ると共に、軽
量骨材５内に混入されるものである。More specifically, the rice hulls 6 are uniformly mixed in the phenol foam 4 in the figure as shown in an enlarged view of a part in FIG. Then, by removing moisture that inhibits the formation of the foamed structure of the phenolic foam 4, and by homogenizing the foamed structure of the phenolic foam 4, the mechanical strength (enhancement of compressive strength, reduction of brittleness) of the core material 3 is improved, In addition to improving the heat insulation, the amount of expensive phenol foam 4 used is reduced to reduce the cost, and the phenol foam 4 is mixed into the lightweight aggregate 5.
【００１２】また、もみ殻６により均質発泡組織となる
ために、不燃基材１、２と芯材３との接着力が向上し、
耐火複合板αの機械的強度も向上するものである。Further, since the rice husk 6 has a homogeneous foam structure, the adhesive strength between the non-combustible base materials 1 and 2 and the core material 3 is improved.
The mechanical strength of the refractory composite plate α is also improved.
【００１３】さらに、もみ殻６は火災時に炭化し芯材３
内に炭化層を形成し、耐火性の向上にも役立つものであ
る。Further, the rice husk 6 is carbonized at the time of fire and
A carbonized layer is formed in the inside to help improve fire resistance.
【００１４】次に本発明に係る耐火複合板の製造法の一
例を示すと図４のようになる。まず、不燃基材１、例え
ばカラー鋼板（厚さ０．３５ｍｍ）を送給工程Ａ（アン
コイラ、リフター等）から原料吐出工程Ｂに送給され、
未発泡のレゾール型フェノールフォーム原液１００重量
部に対し、もみ殻６の微粉粒物を４０〜６０重量部位、
もみ殻６を混入したパーライト粒よりなる軽量骨材５を
混入し、均一に撹拌した芯材３の原液３ａを吐出機Ｃか
ら不燃基材１の裏面１ａ上に吐出し、その上に不燃基材
２、例えばカラー鋼板（厚さ０．２７ｍｍ）を送給工程
Ｄ（アンコイラ、リフター等）を介して積層して所定型
のキュアオーブンＥに送給し、連続、もしくは多段式加
圧（プレス）発泡法で約７〜１５分間、３０〜１００℃
で養生し発泡、硬化させ、次にカッタＦで所定寸法に切
断した後に梱包工程Ｇに送給するものである。Next, FIG. 4 shows an example of a method for manufacturing a refractory composite plate according to the present invention. First, a non-combustible substrate 1, for example, a color steel plate (thickness 0.35 mm) is fed from a feeding step A (uncoiler, lifter, etc.) to a raw material discharging step B,
For 100 parts by weight of the unfoamed resol-type phenol foam stock solution, 40-60 parts by weight of the fine powder of the rice husk 6
Light weight aggregate 5 composed of pearlite grains mixed with rice hulls 6 is mixed, and the stock solution 3a of the core material 3 uniformly stirred is discharged from the discharger C onto the back surface 1a of the non-combustible base material 1, and the non-combustible Material 2, for example, a color steel plate (thickness 0.27 mm) is laminated via a feeding step D (uncoiler, lifter, etc.) and fed to a predetermined type of curing oven E, where continuous or multi-stage pressing (pressing) is performed. ) By foaming method for about 7 to 15 minutes, 30 to 100 ° C
Curing, foaming and curing, and then cutting to a predetermined size with a cutter F, and then feeding it to a packing process G.
【００１５】また、点線で示すＡ1 、Ｄ1 は、不燃基材
１、２の成形機であり、不燃基材１、２を図２（ａ）〜
（ｆ）に示すような所定形状に成形するためのものであ
る。A 1 and D 1 indicated by dotted lines are molding machines for the non-combustible substrates 1 and 2.
This is for forming into a predetermined shape as shown in FIG.
【００１６】[0016]
【その他の実施例】以上説明したのは、本発明に係る耐
火複合板の一実施例であり、図５（ａ）〜（ｆ）に示す
ように軽量骨材５を形成することもできる。すなわち、
図５（ａ）は軽量骨材５としては粒径の大きいパーライ
ト粒５ａと粒径の小さいパーライト粒５ｂを細密充填し
て密度を高めた耐火複合板α、図５（ｂ）は軽量骨材５
としてパーライト粒５ａと、高温下で膨脹発泡する膨脹
性グラファイト５ｃを混在させ、耐火性能を高めた耐火
複合板αである。また、図５（ｃ）は軽量骨材５として
高吸水性高分子でコーティングしたパーライト粒５ｄを
用いたもの、図５（ｄ）は軽量骨材５としてパーライト
粒５ａと親水性界面活性剤５ｅを介在させたもので、共
にフェノールフォーム４の原料硬化時に発生する縮合水
を吸着、保持し、その水分により耐火性を向上させ、製
造時におけるキュア時間を短縮できる耐火複合板αであ
る。さらに、図５（ｅ）は軽量骨材５として、パーライ
ト粒５ａとチョップドストランド等のガラス繊維５ｆを
介在させ耐火性のアップと強度の強化を図った耐火複合
板α、図５（ｆ）は芯材３の不燃基材１、２側に粒径の
大きいパーライト粒５ａと粒径の小さいパーライト粒５
ｂを遍在して細密充填して形成した耐火複合板α、図５
（ｇ）は不燃基材１、２と芯材３間に接着剤７を介して
親水性ポリエステル繊維等の不織布８を形成した耐火複
合板αである。勿論、図５（ｇ）では不燃基材１、２の
両面に不織布８を形成しているが、不燃基材１側の片面
にのみ不織布８を形成することもできる。Other Embodiments The above is one embodiment of the fire-resistant composite plate according to the present invention, and a lightweight aggregate 5 can be formed as shown in FIGS. 5 (a) to 5 (f). That is,
FIG. 5A shows a refractory composite plate α in which dense pearlite grains 5a and small pearlite grains 5b are densely packed to increase the density of the lightweight aggregate 5, and FIG. 5B is a lightweight aggregate. 5
Is a refractory composite plate α in which pearlite grains 5a and expandable graphite 5c that expands and foams at a high temperature are mixed to enhance the fire resistance performance. FIG. 5 (c) shows the use of pearlite particles 5d coated with a superabsorbent polymer as the lightweight aggregate 5, and FIG. 5 (d) shows the pearlite particles 5a and the hydrophilic surfactant 5e as the lightweight aggregate 5. A fire-resistant composite plate α capable of adsorbing and retaining condensed water generated at the time of curing the raw material of phenol foam 4, improving the fire resistance by the moisture, and shortening the curing time during production. Further, FIG. 5 (e) shows a fire-resistant composite plate α as a lightweight aggregate 5 in which pearlite grains 5a and glass fibers 5f such as chopped strands are interposed to increase fire resistance and strengthen strength. The pearlite grains 5a having a large grain size and the pearlite grains 5 having a small grain size are provided on the non-combustible base materials 1 and 2 sides of the core material 3.
b. A fire-resistant composite plate α formed by ubiquitously and densely filling b, FIG.
(G) is a fire-resistant composite plate α in which a nonwoven fabric 8 such as a hydrophilic polyester fiber is formed between the non-combustible base materials 1 and 2 and the core material 3 via an adhesive 7. Of course, in FIG. 5 (g), the nonwoven fabric 8 is formed on both surfaces of the non-combustible substrates 1 and 2, but the nonwoven fabric 8 can be formed only on one surface on the non-combustible substrate 1 side.
【００１７】[0017]
【発明の効果】上述したように本発明に係る耐火複合板
によれば、レゾール型のフェノールフォームにより、
他の合成樹脂発泡体（プラスチックフォーム）に比べて
不燃性、低発煙性、低毒性の性能を有する耐火複合板と
なる。もみ殻よりなる微粉粒物は吸水材、保水材、嵩
上げ材、断熱材等の機能を有するものであり、レゾール
型のフェノールフォームの原料となる樹脂、および軽量
骨材に混入しフェノールフォームの発泡体を形成する
と、反応時に生成される縮合水を吸水し、フェノールフ
ォームの発泡反応阻害防止材となり、発泡組織が均一化
する。発泡組織の均一化により原料の使用量の低減、
断熱性の向上、不燃基材と芯材との接着強化、芯材の強
度の向上（圧縮強度の向上、脆性の低下）等の機能を有
する耐火複合板となる。もみ殻よりなる微粉粒物は嵩
上げ材となり、高価なレゾール型のフェノールフォーム
原料の使用量を低減し、コストの削減に貢献する。も
み殻よりなる微粉粒物は火災時に炭化層を形成し、耐火
性が向上する。軽量骨材を細密充填することにより火
災に強く、耐火１時間等の耐火構造試験に合格する耐火
複合板となる。他の無機質系の耐火パネルに比較して
非常に軽く、施工性が向上する。等の特徴、効果があ
る。As described above, according to the refractory composite plate of the present invention, a resol type phenol foam is used.
It becomes a fire-resistant composite board having non-flammability, low smoke emission, and low toxicity performance as compared with other synthetic resin foams (plastic foam). The fine particles made of rice hulls have the function of a water-absorbing material, a water-retaining material, a raising material, a heat insulating material, etc., and are mixed with the resin used as the raw material of the resol-type phenol foam and the lightweight aggregate to form the phenol foam. When the body is formed, it absorbs the condensed water generated during the reaction, and serves as a material for preventing the foaming reaction of the phenol foam, thereby making the foamed structure uniform. Reduce the amount of raw materials used by making the foam structure uniform,
A fire-resistant composite plate having functions such as improved heat insulation, enhanced adhesion between the non-combustible base material and the core, and improved core strength (improved compressive strength and reduced brittleness). The fine powder and granules composed of the rice hulls serve as a raising material, which reduces the amount of expensive resol-type phenol foam raw materials used and contributes to cost reduction. Fine particles made of rice hulls form a carbonized layer in the event of a fire, improving fire resistance. By densely filling the lightweight aggregate, it becomes resistant to fire and becomes a fire-resistant composite board that passes a fire-resistant structural test such as fire resistance for one hour. It is very light compared to other inorganic fireproof panels, and the workability is improved. There are features and effects such as.
【図１】本発明に係る耐火複合板の一例を示す断面図で
ある。FIG. 1 is a sectional view showing an example of a refractory composite plate according to the present invention.
【図２】耐火複合板の例を示す断面図である。FIG. 2 is a sectional view showing an example of a fire-resistant composite plate.
【図３】図１で用いた耐火複合板の一部を拡大抽出して
示す説明図である。FIG. 3 is an explanatory diagram showing a part of the refractory composite plate used in FIG. 1 in an enlarged manner.
【図４】本発明に係る耐火複合板を製造するための工程
の一例を示す説明図である。FIG. 4 is an explanatory view showing an example of a process for manufacturing a refractory composite plate according to the present invention.
【図５】本発明に係る耐火複合板のその他の例を示す断
面図である。FIG. 5 is a sectional view showing another example of the refractory composite plate according to the present invention.
α 耐火複合板 １ 不燃基材 ２ 不燃基材 ３ 芯材 ４ レゾール型のフェノールフォーム ５ 軽量骨材 ６ もみ殻よりなる微粉粒物 α Fireproof composite board 1 Non-combustible base material 2 Non-combustible base material 3 Core material 4 Resol type phenol foam 5 Lightweight aggregate 6 Fine powder and granular material consisting of rice husk
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−67128（ＪＰ，Ａ) 特開 昭59−11339（ＪＰ，Ａ) 特開 平３−88848（ＪＰ，Ａ) 実開 昭56−97309（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 E04B 1/74 - 1/99 E04F 13/00 - 13/18 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-67128 (JP, A) JP-A-59-11339 (JP, A) JP-A-3-88848 (JP, A) 97309 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B32B 1/00-35/00 E04B 1/74-1/99 E04F 13/00-13/18
Claims (1)
において、上記芯材はレゾール型のフェノールフォーム
樹脂の発泡体と軽量骨材からなり、かつ、レゾール型の
フェノールフォーム樹脂および軽量骨材にはもみ殻より
なる微粉粒物が混入されて発泡硬化されることにより芯
材が形成されており、不燃基材と芯材との一体化はフェ
ノールフォーム形成時の自己接着性により固着したこと
を特徴とする耐火複合板。1. A refractory composite plate having a core material formed between non-combustible base materials, wherein the core material comprises a resol type phenol foam resin foam and a lightweight aggregate. The core material is formed by mixing and mixing the fine particles consisting of rice hulls into the aggregate and foaming and hardening, and the integration of the non-combustible base material and the core material is fixed by self-adhesion during phenol foam formation A fire-resistant composite plate characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26550592A JP3223928B2 (en) | 1992-09-07 | 1992-09-07 | Fire resistant composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26550592A JP3223928B2 (en) | 1992-09-07 | 1992-09-07 | Fire resistant composite board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0687183A JPH0687183A (en) | 1994-03-29 |
| JP3223928B2 true JP3223928B2 (en) | 2001-10-29 |
Family
ID=17418102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26550592A Expired - Fee Related JP3223928B2 (en) | 1992-09-07 | 1992-09-07 | Fire resistant composite board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3223928B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4984470B2 (en) * | 2005-09-27 | 2012-07-25 | 日鉄住金鋼板株式会社 | Sandwich panel and building wall |
| JP2018043754A (en) * | 2016-09-12 | 2018-03-22 | 株式会社松田技術研究所 | Cargo container |
-
1992
- 1992-09-07 JP JP26550592A patent/JP3223928B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0687183A (en) | 1994-03-29 |
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