JP2728878B2 - Hollow extruded plate - Google Patents
Hollow extruded plateInfo
- Publication number
- JP2728878B2 JP2728878B2 JP62315119A JP31511987A JP2728878B2 JP 2728878 B2 JP2728878 B2 JP 2728878B2 JP 62315119 A JP62315119 A JP 62315119A JP 31511987 A JP31511987 A JP 31511987A JP 2728878 B2 JP2728878 B2 JP 2728878B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow
- layer
- extruded plate
- cross
- porous layer
- 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
- 238000001125 extrusion Methods 0.000 claims description 13
- 150000002484 inorganic compounds Chemical class 0.000 claims description 6
- 229910010272 inorganic material Inorganic materials 0.000 claims description 6
- 239000012783 reinforcing fiber Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 24
- 239000002344 surface layer Substances 0.000 description 18
- 238000009413 insulation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-M oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC([O-])=O ZQPPMHVWECSIRJ-KTKRTIGZSA-M 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Panels For Use In Building Construction (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、施工性、断熱性、防火性、軽量性に優れ補
強繊維を含む水硬性無機化合物を主原料とする中空率が
20〜50％の中空押出成形板に関するものである。本発明
の中空押出成形板は釘打、ビス留めが可能であり、木材
と同様に建築物の壁面、柱等に使用できる。
〔従来技術及び問題点〕
従来、セメント、けい酸カルシユウム、石膏等の水硬
性無機化合物に、補強繊維、軽量骨材、有機化合物、水
等を混合し、押出機にて板状物等を押出成形することは
すでに知られている。一般にこの様な方法で得られる押
出成形板は重いため、軽量化を計る目的で、押出方向に
対して断面形状が円形もしくは多角形の中空部を表面層
と裏面層との中間層に裏面層に平行に一列に設け中空率
を20〜50％とすることが行われている。この様な断面形
状の中空押出成形板は、軽量化されるばかりでなく、原
材料の使用量も少なくてすみ工業的には有利な方法と考
えられるが、施工性と断熱性が低下するのが欠点であ
る。一般に、この様な断面形状の従来技術の中空押出成
形板の中空孔の最大幅は5mm以上の大きさであり、かつ
裏面に対して平行に一列に配列されているので下地材料
に釘又はビス等で留めつける場合、釘又はビスは、中空
押出成形板の表面層と裏面層によってのみ保持される結
果となり、釘保持力は著しく低下する。JIS規格に定め
られている一般的な鉄丸釘、ステンレス釘の頭部径の最
小値は3.5〜3.6cmであるので、中空部の中心部に釘が打
設されると容易に表面層が破壊され、釘保持力を失って
しまうという欠点を有していた。この様な欠点を改善す
る為に、部分的に中空部と中空部の間の中実部を広く
し、その中実部に釘を打設し、留めつけ、釘保持力を高
める工夫がなされている場合もあるが、この様な方法で
は板面から釘打設位置を見分けることは困難であり、又
その位置を板面に表示する方法も、表示マークが施工後
も欠点として残ることや、釘打設位置が限定されること
による施工上からの制約をまぬがれることはできず、実
用性に問題があった。又従来の断面最大幅が5mm以上の
中空孔が裏面に対して平行に一列に配列された形状の中
空押出成形板は、中空部が大きいことにより断熱性が低
いことが欠点であった。これは、防火性においても不利
で、表面が火災の高温にされされた場合、高温が容易に
裏面に達し、裏面に存在する可燃物を着火させる。また
長時間高温にさらされることにより表面層が破壊される
と、一挙に裏面層に高温が伝達し、防火能力を失うこと
が欠点であった。
本発明は、中空押出成形板の有するこれら諸問題を解
決することを目的とするものである。
〔問題点を解決する為の手段〕
本発明は、補強繊維を含む水硬性無機化合物を主原料
とする中空率が20〜50％の押出成形板において、表面層
と裏面層との中間に全面に断面最小幅が0.5mm以上、最
大幅が3mm以下の中空柱状の空孔部が押出方向に平行に
多数存在する多孔質層を設けた中空押出成形板である。
多項質層の中空柱状の空孔部が押出方向に平行に多数
存在するということを具体的に表現すると、厚み方向に
対して３列以上の中空孔が存在することを意味してい
る。該中空孔の押出方向に対して直角方向の断面形状に
ついて特に制限はないが、円形、楕円形、多角形、ある
いはそれ等を組み合わせた形状のものが一般的である。
本発明においては、全面に多孔質層が存在しているの
で、特に、釘打設位置を表示しなくても所望の位置に釘
打ができるばかりでなく、中空孔断面の最大幅を3mm以
下にすることによって中空板を釘等で留めつける場合、
釘の3.5mm〜3.6mmの頭部径よりも中空部最大幅が小とな
り、釘打時あるいは釘打後においても表面層が破壊され
ることがない。又ビス留めするにおいてもビスの径より
も中空部が小さいか、もしくは同等となり、ビスの保持
力は著しく向上する。従って、従来の中空押出成形板の
施工性の問題は本発明の方法により解決し得るのであ
る。更に従来の中空板の中空部が多孔質層に置きかえら
れているので、断熱性も飛躍的に高まり表面が高温にさ
らされても熱をほとんど裏面に伝えることはない。特に
火災時においては、表面層が熱によって破壊されてもそ
の下層の断熱性の高い多孔質層により高温の伝導が阻止
され、裏面の可燃物を火災から守ることが出来るのであ
る。
中空成形板において、中空率が20〜50％と比較的に高
い中空率であって施工性、断熱性、防火性の諸特性を満
足させるには、厚み方向に少なくとも３列以上の中空孔
が存在することが必要であり、２列以下では特に火災時
において表面層が破壊された場合、断熱性も失う危険性
がある。
本発明で中空孔断面の最小幅を0.5mm以上と規制して
いるのは、毛細菅現象による水の吸収を避ける為で、最
小幅が0.5mmより小さくなると吸水率が高くなり建築材
料として不利となる。
前記の特性は、特許請求の範囲第２項に記載した如
く、表面層と裏面層との中間で厚み方向に隣接する中空
孔が裏面に対して垂直な直線上に配列されない場合にお
いて特に顕著である。
本発明において水硬性無機化合物を主原料とする組成
物に対し補強繊維を添加するのは中空押出成形時の保形
性を良好にするためである。その添加量は前記組成物に
対し１〜20％が適当である。
第１図は本発明、特に上記特許請求の範囲第２項記載
の中空押出成形板の一実施例を示す斜視図であり、補強
繊維を含む水硬性無機化合物１を主原料とする中空率が
20〜50％の押出成形板であって、表面層ａと裏面層ｃと
の中間に多孔質層ｂが存在し、その多孔質層ｂの中空孔
２が押出方向ｄに対して平行な中空柱状であって、多孔
質層ｂの押出方向ｄに対して直角方向断面において中空
孔が厚み方向に５列、すなわち５個存在し、かつ厚み方
向に隣接する孔（例えば2aを中心に述べると、厚み方向
に隣接する孔はa1、a2、a3、a4である）が裏面３に対し
て垂直な直線上に並んでいないものである。
特許請求の範囲第２項の中空成形板において、施工時
には通常裏面に対して直角に釘打、ビス留めするのであ
るが、中空部が厚み方向に多数存在し、かつ厚み方向に
隣接する孔が裏面に対して直線上に存在しないので、よ
り多くの中実部によって釘あるいはビスが保持されるの
で、釘やビスの保持力が優れているのである。したがっ
て施工時においても施工後においてもクラックが入りに
くい。火災時においても同様にクラックが入りにくいの
で高い断熱性が保持され、防火性能に優れている。
〔実施例〕
以下実施例にて本発明をさらに具体的に説明する。
＜実施例１＞
20重量％のポリグリセロールオレエートと１重量％の
ベンゾイルパーオキサイドを含むビニルモノマー溶液10
0重量部にポルトランドセメント1900重量部、水1700
部、アクリル繊維37重量部を加え、逆乳化し、セメント
含有W/O型エマルジョンを得た。これを押出成形機にて
厚さ18mm、幅465mm、長さ3030mmの中空成形板を押出成
形した。この中空成形板の、表面層と裏面層の厚さは各
2mmでその中間に14mmの厚さの多孔質層が存在し、この
多質層には、断面の直径が2mmの円形の小孔が厚み方向
に５列配列され、各列の小孔は裏面に垂直な直線上に並
ばないよう1.5mmづつずらして配列された。この押出成
形板の中空率は28％であった。
＜実施例２＞
セメント100重量部に水35重量部、アスベスト繊維10
重量部、メチルセルローズ５重量部を加えた混合物を押
出成形機にて厚さ12mm、幅465mm、長さ3030mmの中空成
形板を押出成形した。この中空成形板は表面層、裏面層
の厚みが各1.5mmでその中間に9mmの厚さの多孔質層が存
在し、多孔質層には断面の直径が1mmの円形の小孔が厚
み方向に５列配列され各列の小孔は裏面に垂直な直線上
に並ばない様0.5mmづつずらして配列された。この押出
成形板の中空率は22％であった。
＜比較例１＞
表面層及び裏面層の厚みが4mmであって、10×18mmの
長方形の中空孔がその中間に１列に配列されている以外
は実施例１と同様な方法で中空率28％の中空押出成形板
を得た。
＜比較例２＞
表面層及び裏面層の厚みが各3mmであって直径6mmの円
形中空孔がその中間に１列に配列されている以外は実施
例２と同様な方法で中空率22％の中空押出成形板を得
た。
〔発明の効果〕
以上の如く、本発明の中空押出成形は横方向の曲げ強
さ、木ネジ保持力、防火性、断熱性において優れている
ことは明瞭であり、表面層と裏面層との間に多孔質層を
設けることにより、軽量性、経済性等従来の中空押出成
形板の長所を生かし、かつ施工性、断熱性、防火性の高
められた優れた建築材料である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is excellent in workability, heat insulation, fire resistance and lightness, and has a hollow ratio of a hydraulic inorganic compound containing a reinforcing fiber as a main raw material.
20-50% of hollow extruded plates. The hollow extruded plate of the present invention can be nailed or screwed, and can be used for walls, pillars, etc. of buildings like wood. [Prior art and problems] Conventionally, reinforcing fibers, lightweight aggregates, organic compounds, water, etc. are mixed with a hydraulic inorganic compound such as cement, calcium silicate, gypsum, etc., and a plate-like material is extruded with an extruder. Molding is already known. In general, since an extruded plate obtained by such a method is heavy, a hollow portion having a circular or polygonal cross section with respect to the extrusion direction is provided as an intermediate layer between the front layer and the back layer for the purpose of weight reduction. And the hollow ratio is set to 20 to 50%. Hollow extruded plates with such a cross-sectional shape are not only lighter, but also use less raw materials, which is considered to be an industrially advantageous method.However, workability and heat insulation are reduced. It is a disadvantage. Generally, the maximum width of the hollow holes of the hollow extruded plate of the prior art having such a cross-sectional shape is 5 mm or more and is arranged in a line in parallel with the back surface, so that nails or screws are attached to the base material. In such a case, the nail or the screw is held only by the surface layer and the back surface layer of the hollow extruded plate, and the nail holding force is significantly reduced. Since the minimum value of the head diameter of general iron nails and stainless steel nails specified in the JIS standard is 3.5 to 3.6 cm, the surface layer is easily formed when the nail is driven into the center of the hollow part. It had the disadvantage of being destroyed and losing nail holding power. In order to improve such drawbacks, the solid portion between the hollow portions is partially widened, nails are driven into the solid portion, the nails are fastened, and the nail holding force is increased. However, it is difficult to identify the nailing position from the plate surface by such a method, and the method of displaying the position on the plate surface is not good. However, the restriction on the construction due to the limitation of the nailing position cannot be avoided, and there is a problem in practicality. Further, a conventional hollow extruded plate in which hollow holes having a maximum cross-sectional width of 5 mm or more are arranged in a row in parallel with the back surface has a disadvantage in that heat insulation is low due to the large hollow portion. This is also disadvantageous in terms of fire protection, and when the surface is brought to the high temperature of a fire, the high temperature easily reaches the rear surface and ignites combustibles present on the rear surface. Further, when the surface layer is destroyed by being exposed to a high temperature for a long time, the high temperature is transmitted to the back layer at a stroke, and the fire protection ability is lost. The object of the present invention is to solve these problems of the hollow extruded plate. [Means for Solving the Problems] The present invention relates to an extruded plate having a hollow ratio of 20 to 50% and comprising a hydraulic inorganic compound containing a reinforcing fiber as a main raw material. A hollow extruded plate provided with a porous layer in which a large number of hollow columnar holes having a minimum cross-sectional width of 0.5 mm or more and a maximum width of 3 mm or less exist in parallel with the extrusion direction. To express concretely that there are a large number of hollow columnar holes in the polynomial layer parallel to the extrusion direction, it means that there are three or more rows of hollows in the thickness direction. There is no particular limitation on the cross-sectional shape in the direction perpendicular to the extrusion direction of the hollow holes, but a circular, elliptical, polygonal, or a combination thereof is generally used. In the present invention, since the porous layer is present on the entire surface, not only the nailing can be performed at a desired position without displaying the nailing position, but also the maximum width of the hollow hole cross section is 3 mm or less. When fastening the hollow plate with nails by
The maximum width of the hollow portion is smaller than the head diameter of the nail of 3.5 mm to 3.6 mm, and the surface layer is not destroyed even at the time of nailing or after nailing. Also, when the screw is fixed, the hollow portion is smaller or equal to the diameter of the screw, and the holding force of the screw is significantly improved. Therefore, the problem of the workability of the conventional hollow extruded plate can be solved by the method of the present invention. Further, since the hollow portion of the conventional hollow plate is replaced with the porous layer, the heat insulating property is dramatically improved, and even if the surface is exposed to a high temperature, almost no heat is transmitted to the back surface. Particularly in the event of a fire, even if the surface layer is destroyed by heat, high-temperature conduction is prevented by the lower heat-insulating porous layer, and combustibles on the back surface can be protected from fire. In the hollow molded plate, the hollow ratio is relatively high, such as 20 to 50%, and in order to satisfy various properties such as workability, heat insulation, and fire resistance, at least three rows of hollow holes in the thickness direction are required. It must be present, and there is a danger of losing thermal insulation if there are two or less rows, especially if the surface layer is destroyed in a fire. In the present invention, the minimum width of the cross section of the hollow hole is restricted to 0.5 mm or more in order to avoid water absorption due to the capillary phenomenon, and when the minimum width is smaller than 0.5 mm, the water absorption rate becomes high, which is disadvantageous as a building material. Becomes The above characteristics are particularly remarkable when hollow holes adjacent in the thickness direction between the front surface layer and the back surface layer are not arranged on a straight line perpendicular to the back surface, as described in claim 2. is there. In the present invention, the reason why reinforcing fibers are added to the composition containing a hydraulic inorganic compound as a main raw material is to improve shape retention during hollow extrusion molding. The addition amount is suitably from 1 to 20% based on the composition. FIG. 1 is a perspective view showing one embodiment of the present invention, particularly a hollow extruded plate according to the second aspect of the present invention.
20 to 50% of an extruded plate, wherein a porous layer b is present between the surface layer a and the back layer c, and the hollow holes 2 of the porous layer b are parallel to the extrusion direction d. In the columnar shape, there are five rows of hollow holes in the thickness direction, that is, five holes in the cross section in the direction perpendicular to the extrusion direction d of the porous layer b, and five holes are adjacent to each other in the thickness direction (for example, the hole 2a The holes adjacent in the thickness direction are a 1 , a 2 , a 3 , and a 4 ), which are not arranged on a straight line perpendicular to the back surface 3. In the hollow molded plate according to claim 2, usually nailing and screwing are performed at right angles to the back surface at the time of construction, but there are many hollow portions in the thickness direction, and holes adjacent in the thickness direction are formed. Since the nail or screw is not held in a straight line with respect to the back surface, the nail or screw is held by more solid portions, and the nail or screw holding force is excellent. Therefore, cracks hardly occur during and after construction. Even in the event of a fire, cracks are unlikely to occur, so that high heat insulation is maintained and the fire protection performance is excellent. [Examples] Hereinafter, the present invention will be described more specifically with reference to Examples. Example 1 Vinyl monomer solution 10 containing 20% by weight of polyglycerol oleate and 1% by weight of benzoyl peroxide
0 parts by weight of Portland cement 1900 parts by weight, water 1700
And 37 parts by weight of an acrylic fiber were added and inversely emulsified to obtain a cement-containing W / O emulsion. This was extruded into a hollow molded plate having a thickness of 18 mm, a width of 465 mm and a length of 3030 mm using an extruder. The thickness of the surface layer and the back layer of this hollow molded plate
There is a porous layer with a thickness of 2 mm and a thickness of 14 mm in the middle, and in this porous layer, five rows of circular small holes having a cross-sectional diameter of 2 mm are arranged in the thickness direction, and the small holes in each row are on the back side. The arrays were shifted 1.5mm at a time so that they did not line up on a straight line perpendicular to. The hollow ratio of this extruded plate was 28%. <Example 2> 35 parts by weight of water and 10 parts of asbestos fiber were added to 100 parts by weight of cement.
A mixture obtained by adding 5 parts by weight of methylcellulose and 5 parts by weight of methylcellulose was extruded into a hollow molded plate having a thickness of 12 mm, a width of 465 mm and a length of 3030 mm using an extruder. In this hollow molded plate, the thickness of the front layer and the back layer is 1.5 mm each, and a porous layer with a thickness of 9 mm exists between them, and the porous layer has circular small holes with a cross section diameter of 1 mm in the thickness direction. The small holes in each row are arranged by being shifted by 0.5 mm so as not to be aligned on a straight line perpendicular to the back surface. The hollow ratio of this extruded plate was 22%. <Comparative Example 1> The hollow ratio was 28 in the same manner as in Example 1 except that the thickness of the front surface layer and the back surface layer was 4 mm, and rectangular hollow holes of 10 × 18 mm were arranged in a row in the middle. % Of a hollow extruded plate was obtained. <Comparative Example 2> A hollow layer having a hollow ratio of 22% was obtained in the same manner as in Example 2 except that the thickness of each of the front surface layer and the rear surface layer was 3 mm, and circular hollow holes having a diameter of 6 mm were arranged in a row in the middle. A hollow extruded plate was obtained. [Effects of the Invention] As described above, it is clear that the hollow extrusion molding of the present invention is excellent in lateral bending strength, wood screw holding power, fire resistance, and heat insulation, and the surface layer and the back surface layer By providing a porous layer between them, it is an excellent building material that utilizes the advantages of conventional hollow extruded plates such as lightness and economy, and has improved workability, heat insulation, and fire resistance.
【図面の簡単な説明】
第１図は本発明の中空押出成形板の一実施例を示す一部
斜視図である。
ａ……表面層、ｂ……多孔質層
ｃ……裏面層、ｄ……押出方向
１……補強繊維を含む水硬性無機化合物
２、2a、21、22、23、24……中空孔
３……裏面、４……表面BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial perspective view showing one embodiment of a hollow extruded plate of the present invention. a ...... surface layer, b ...... porous layer c ...... backside layer, d ...... extrusion direction 1 ...... reinforcing fiber hydraulic inorganic compound 2,2a containing, 2 1, 2 2, 2 3, 2 4 ... ... Hollow hole 3 ... Back side 4 ... Front side
Claims (1)
空率が20〜50％に押出成形板において、表面層と裏面層
との中間に全面に多孔質層が存在し、その多孔質層の孔
が厚み方向に対して３列以上であって、かつ押出方向に
対して平行な中空柱状であり、該中空孔の押出方向に対
して直角方向断面の最小幅が0.5mm以上、最大幅が3mm以
下であることを特徴とする中空押出成形板。 ２．多孔質層の押出方向に対して直角方向断面におい
て、厚み方向に隣接する中空孔が裏面に対して垂直な直
線上に並ばないことを特徴とする特許請求の範囲第１項
記載の中空押出成形板。(57) [Claims] In the extruded plate, the hydraulic layer containing the hydraulic inorganic compound containing the reinforcing fiber and the main raw material has a hollow ratio of 20 to 50%, and a porous layer exists on the entire surface between the front layer and the back layer. Are three or more rows in the thickness direction, and have a hollow columnar shape parallel to the extrusion direction, and the minimum width of the cross section of the hollow hole in the direction perpendicular to the extrusion direction is 0.5 mm or more, and the maximum width is 3 mm. A hollow extruded plate characterized by the following. 2. 2. The hollow extrusion molding according to claim 1, wherein in the cross section perpendicular to the extrusion direction of the porous layer, the hollow holes adjacent in the thickness direction are not aligned on a straight line perpendicular to the back surface. Board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62315119A JP2728878B2 (en) | 1987-12-15 | 1987-12-15 | Hollow extruded plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62315119A JP2728878B2 (en) | 1987-12-15 | 1987-12-15 | Hollow extruded plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01158149A JPH01158149A (en) | 1989-06-21 |
| JP2728878B2 true JP2728878B2 (en) | 1998-03-18 |
Family
ID=18061635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62315119A Expired - Fee Related JP2728878B2 (en) | 1987-12-15 | 1987-12-15 | Hollow extruded plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2728878B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6821987B2 (en) | 2001-04-27 | 2004-11-23 | Kirin Beer Kabushiki Kaisha | Quinoline derivatives and quinazoline derivatives having azolyl group |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325776Y2 (en) * | 1972-05-04 | 1978-07-01 | ||
| JPS5991249A (en) * | 1982-11-18 | 1984-05-25 | 株式会社クボタ | Wall panel material made of inorganic substance |
-
1987
- 1987-12-15 JP JP62315119A patent/JP2728878B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01158149A (en) | 1989-06-21 |
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