JPS62244630A - Manufacture of composite panel - Google Patents
Manufacture of composite panelInfo
- Publication number
- JPS62244630A JPS62244630A JP61088671A JP8867186A JPS62244630A JP S62244630 A JPS62244630 A JP S62244630A JP 61088671 A JP61088671 A JP 61088671A JP 8867186 A JP8867186 A JP 8867186A JP S62244630 A JPS62244630 A JP S62244630A
- Authority
- JP
- Japan
- Prior art keywords
- surface material
- composite panel
- raw material
- synthetic resin
- heater
- 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
- 239000002131 composite material Substances 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims description 50
- 239000002994 raw material Substances 0.000 claims description 18
- 239000006260 foam Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 229920003002 synthetic resin Polymers 0.000 claims description 11
- 239000000057 synthetic resin Substances 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000012778 molding material Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910021538 borax Inorganic materials 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
- 239000004202 carbamide Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011211 glass fiber reinforced concrete Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000582 polyisocyanurate Polymers 0.000 description 1
- 239000011495 polyisocyanurate Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は窯業系の表面材、特にGRClあるいは粘土を
焼成した陶磁器等からなるセラミック製で、かつ長尺状
の表面材の裏面と裏面材間に合成樹脂発泡体を一体に介
在させた複合パネルの製造方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to ceramic surface materials, particularly ceramics made of GRCl or clay fired ceramics, and the back surface of a long surface material and the back surface material. The present invention relates to a method for manufacturing a composite panel in which a synthetic resin foam is integrally interposed between the panels.
この種複合パネルを製造するには、表面材を固定型に嵌
挿し、次に合成樹脂発泡体原料を吐出し、その上に裏面
材を積層した後で上型材を下型材に載せると共に、型を
70〜100℃に加温し、養生後に脱型することにより
生産していた。また、これを改善した方法としては表面
材の木口を当接し連続帯とし、次に表面材を熱風で加温
し、次に合成樹脂発泡体原料を吐出した後に裏面材を積
層して一体に形成する方法であった。To manufacture this type of composite panel, the facing material is fitted into a fixed mold, the synthetic resin foam raw material is then discharged, the backing material is laminated on top of that, the upper molding material is placed on the lower molding material, and the molding material is placed on the lower molding material. It was produced by heating it to 70 to 100°C and removing it from the mold after curing. In addition, as an improved method, the ends of the facing material are brought into contact to form a continuous band, the facing material is then heated with hot air, and after the synthetic resin foam raw material is discharged, the backing material is laminated and integrated. It was a method of forming.
この種方法において前者の場合は、生産性が悪く、一定
の断面形状の複合パネルしか製造できず、かつ合成樹脂
発泡体原料の使用量も多く、コスト高となる欠点があっ
た。また、後者の場合は表面材の熱容量が大きく、単に
熱風を吹き付けた程度では温度が上昇せず、長時間、少
なくとも5〜10分間は90℃位の雰囲気下を通過させ
る必要があり、生産性が悪く、かつキュアオーブンによ
る加温も普通程度に加温する必要があった。In this type of method, the former method has the drawbacks of poor productivity, being able to manufacture only composite panels with a fixed cross-sectional shape, and requiring a large amount of synthetic resin foam raw material, resulting in high costs. In addition, in the latter case, the heat capacity of the surface material is large, and the temperature will not rise just by blowing hot air on it, so it is necessary to pass it through an atmosphere of about 90°C for a long time, at least 5 to 10 minutes, which increases productivity. The temperature was poor, and it was necessary to use a cure oven to heat the product to a normal level.
(問題点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、表面材を遠赤
外線ヒータ、マイクロ波ヒータの1種を用いて表面材を
中心から、かつ短時間で加熱し、しかも熱要量の大きさ
を活用してキュアオーブンのエネルギーの低減を図ると
共に、コストダウンと生産性を改善した複合パネルの製
造方法を提案するものである。(Means for Solving the Problems) In order to eliminate such drawbacks, the present invention heats the surface material from the center in a short time using one of a far-infrared heater and a microwave heater. Furthermore, this paper proposes a manufacturing method for composite panels that takes advantage of the large heat requirement to reduce the energy consumption of the curing oven, and also reduces costs and improves productivity.
以下に図面を用いて本発明に係る複合パネルの製造方法
の一実施例について詳細に説明する。第1図は本発明に
係る複合パネルの製造方法の実施に供する装置であり、
上は表面材でリフタ2に複数枚が積層された状態で載置
されたものである。An embodiment of the method for manufacturing a composite panel according to the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an apparatus for carrying out the method for manufacturing a composite panel according to the present invention,
The upper one is a surface material, which is placed on the lifter 2 in a stacked state.
特に、表面材上は長尺状、例えば24240 X 30
0mmX15鳳霞、 3Q30n X 3QQm
X IQfl、 3636mmX300m−Xl 2
mm等の形状で密実体、あるいは中空体の一種からなる
ものである。しかも、表面材上は窯業系の材料、例えば
粘土を焼成した陶磁器、GRC(ガラス繊維強化コンク
リート板)、珪酸カルシウム板、ALC板等の1種から
なるものである。3は搬送機で第2図(a)、(b)に
示すように、ローラ4、キャタピラ5、もしくはベルト
(図示せず)の1種からなり表面材上を次工程に送給す
るためのものである。なお、ローラの場合はプラスチッ
ク製か、セラミック製、もしくはアルミナ製であり、両
側にはガイドローラ(図示せず)を付加したものである
。iはヒータで表面材上を短時間で加温するものであり
、例えば遠赤外線ヒータ、マイクロ波ヒータの1種以上
から構成し、かつ、組成物自体にも発熱させるように波
状を選択したりしたものである。特に、ヒータエは表面
材上のようなものを短時間で、かつ中心から加温して保
温時間を持続させるのに有効なものである。7はカバー
でヒータエを収納すると共に、熱が外部に漏洩しないよ
うにするのに役立つものである。8は合成樹脂原料P(
以下、単に原料Pという)の吐出機で表面材上の裏面に
各成分を混合した直後に吐出するものであり、吐出機8
の吐出パターンは線状、帯状、楕円形状等、任意である
。また、原料Pとしてはポリウレタンフォーム、ポリイ
ソシアヌレートフオーム、フェノールフオーム、尿素フ
オーム、ポリエチレンフオーム単体、もしくはこれらに
硼砂、吸水樹脂、鉱粉、ガラス繊維、カーボン繊維、パ
ーライト等の1種以上を添加したものであり、反応系と
してはクリーム−ゲル−ライズタイプと変化し、約1〜
5分位で見掛上の発泡が完了するように設定したもので
ある。9は裏面材で表面材上上に吐出された原料P上に
積層し、原料Pの他への漏洩防止と後記するキュアオー
ブンの型材との接着を阻止するようにしたものである。In particular, the surface material has a long shape, e.g. 24240 x 30
0mmX15 Hokasumi, 3Q30n X 3QQm
X IQfl, 3636mmX300m-Xl 2
It is a type of dense body or hollow body with a shape such as mm. Furthermore, the surface material is made of one type of ceramic material, such as ceramics made from fired clay, GRC (glass fiber reinforced concrete board), calcium silicate board, ALC board, etc. 3 is a conveyor, as shown in FIGS. 2(a) and 2(b), which is composed of rollers 4, caterpillars 5, or a belt (not shown) for conveying the surface material to the next process. It is something. Note that the rollers are made of plastic, ceramic, or alumina, and guide rollers (not shown) are added to both sides. i is a heater that heats the surface material in a short time; for example, it is composed of one or more types of far-infrared heaters and microwave heaters, and the wave shape is selected so that the composition itself also generates heat. This is what I did. In particular, heaters are effective for heating objects on surface materials from the center in a short period of time to maintain heat retention time. A cover 7 serves to house the heater and prevent heat from leaking to the outside. 8 is synthetic resin raw material P (
Hereinafter, the raw material (hereinafter simply referred to as P) is discharged immediately after mixing each component on the back surface of the surface material with a discharge machine, and the discharge machine 8
The ejection pattern is arbitrary, such as linear, band-like, elliptical, etc. In addition, the raw material P is polyurethane foam, polyisocyanurate foam, phenol foam, urea foam, polyethylene foam alone, or one or more of borax, water-absorbing resin, mineral powder, glass fiber, carbon fiber, perlite, etc. is added to these. The reaction system changes to cream-gel-rise type, and the reaction system is about 1 to 1.
The setting was such that the apparent foaming was completed in about 5 minutes. Reference numeral 9 denotes a back material which is laminated on the raw material P discharged onto the surface material to prevent the raw material P from leaking to other parts and to prevent it from adhering to the mold material of a cure oven to be described later.
なお裏面材9としては紙、金属箔、金属薄板(八l、F
es Cu)等の1種以上からなるものである。 10
はプレヒータで金属薄板を裏面材9として用いる際に有
用である。 9aはガイドローラで紙製の裏面材9では
延展装置として機能するものである。■はキュアオーブ
ンで上、下型材12.13と加熱機14とカバー15と
排気孔16とから構成したものであり、表、裏面材上、
9に原料Pをサンドインチした状態で原料Pの反応、発
泡を見掛上、完了させると共に、成形するものである。The backing material 9 may be paper, metal foil, metal thin plate (8l, F
es Cu), etc. 10
This is useful when a thin metal plate is used as the back material 9 in a preheater. 9a is a guide roller which functions as a spreading device for the back material 9 made of paper. 3 is a cure oven consisting of upper and lower mold materials 12 and 13, a heating device 14, a cover 15, and an exhaust hole 16.
The reaction and foaming of the raw material P is apparently completed in a state in which the raw material P is sandwiched between the molds 9 and 9, and the molding is performed.
なお、上、下型材12.13はローラ、キャタピラ、ベ
ルトのいずれか1種、もしくはこれらの組み合わせから
なるものであり、型温は30〜110℃、雰囲気温は5
0〜130℃位である。勿論、温度は原料Pによって選
択するものである。また、加熱機14はガス、電気によ
る熱風、遠赤外線のいずれかを用いるものである。17
は走行力フタで表面材上の長さに対応した位置で裏面材
9と合成樹脂発泡体P′を切断して複合パネルAを得る
ためのものである。The upper and lower mold materials 12 and 13 are made of one of rollers, caterpillars, and belts, or a combination thereof, and the mold temperature is 30 to 110°C, and the ambient temperature is 5°C.
The temperature is about 0 to 130°C. Of course, the temperature is selected depending on the raw material P. Further, the heating device 14 uses gas, electric hot air, or far infrared rays. 17
is for obtaining a composite panel A by cutting the back material 9 and the synthetic resin foam P' at a position corresponding to the length on the surface material using a running force lid.
次に本発明に係る複合パネルAの製造方法について第1
図を用いて説明すると、いま第3図に示すような表面材
上(粘土を1250℃で焼成したもの)をリフタ2に積
み重ね、これを1枚づつ搬送機3に送給して連続帯とし
てヒータエに送給する。ヒータエ内ではマイクロ波24
50H2の電波によって肉厚3鶴の表面材上が約3分間
で例えば90℃に加温され、吐出機8の真下に送給され
る。この場合、表面材上は中心から全体に加熱されてい
るため、原料Pの吐出前にはプレヒータが不要であった
。Next, we will discuss the first method for manufacturing composite panel A according to the present invention.
To explain using a diagram, the surface material (clay fired at 1250°C) as shown in Figure 3 is stacked on the lifter 2, and then fed one by one to the conveyor 3 to form a continuous band. feed to the heater. Microwave 24 inside the heater
The surface material having a thickness of 3 mm is heated to, for example, 90° C. in about 3 minutes by the 50H2 radio waves, and is fed directly below the discharge machine 8. In this case, since the entire surface of the surface material was heated from the center, a preheater was not required before the raw material P was discharged.
次に吐出機8の真下に到着した表面材上の連続帯の裏面
に未発泡のフェノール樹脂原料Pを吐出し、クリームの
終期かゲルタイムの初期に裏面材9(アスベスト紙)を
積層し、表、裏面材上、9間に反応、発泡途中のフェノ
ール樹脂原料Pをサンドインチした状態でキュアオーブ
ン旦の型11aに送給する。なお、キュアオーブンu内
は約100℃に加温されている。次に、キュアオーブン
旦の出口11bから送出されるサンドインチ構造の連続
帯は走行カッタ17によって表面材上の長さに切断され
、複合パネルAとして次工程に搬送するものである。Next, the unfoamed phenolic resin raw material P is discharged onto the back side of the continuous band on the surface material that has arrived directly below the discharge machine 8, and the back material 9 (asbestos paper) is laminated at the end of cream formation or the beginning of gel time, and the surface material is The phenol resin raw material P, which is in the middle of reaction and foaming, is sandwiched between 9 and 9 times on the back material and fed to the mold 11a of the curing oven. Note that the inside of the cure oven u is heated to about 100°C. Next, the continuous strip of sand inch structure sent out from the outlet 11b of the curing oven is cut into lengths on the surface material by a traveling cutter 17, and is transported as a composite panel A to the next process.
なお、施工する場合には胴縁αに釘βを介して第4図に
示すように土台から軒に向って施工するものである。In addition, when performing construction, the construction is carried out from the foundation toward the eaves, as shown in FIG. 4, through the nails β on the rim α.
以上説明したのは本発明に係る複合パネルAの製造方法
の一実施例にすぎず、キャタピラを第5図に示すように
チェーンのない構成としたり、第1図において破線で示
す位置にホットメルト接着剤吐出機を設け、ホットメル
ト接着剤Cを吐出し、これをヒータ■内で溶融させて第
2図(alに示すように表面材上間の木口を閉塞させ、
原II Pが木lコ面に漏洩するのを防止することもで
きる。また、裏面材9を成形して表面材上玉に案内する
こともできる。さらに、複合パネルAは第6図(a)〜
te+に示すように構成することもできる。すなわら、
(81図は合成樹脂発泡体P′を表面材上の裏面に薄く
形成した複合パネルA、(bJ図は表面材上の連結部に
バンキング材的に用いた複合パネルA、(C1〜fe1
図は合成樹脂発泡体P′を図のように充填し、かつ(e
)図のみ取付金具18を形成した複合パネルAである。What has been described above is only one example of the method for manufacturing composite panel A according to the present invention, and the caterpillar may be configured without a chain as shown in FIG. An adhesive dispensing machine was installed, and the hot melt adhesive C was discharged, and this was melted in the heater ② to close the end between the tops of the surface materials as shown in Fig. 2 (al).
It is also possible to prevent the original II P from leaking to the wood surface. It is also possible to mold the back material 9 and guide it to the top surface material. Furthermore, the composite panel A is shown in FIG.
It can also be configured as shown in te+. In other words,
(Figure 81 shows composite panel A in which synthetic resin foam P' is thinly formed on the back surface of the surface material.
The figure shows a synthetic resin foam P' filled as shown in the figure and (e
) Only the figure shows a composite panel A on which mounting fittings 18 are formed.
上述したように本発明に係る複合パネルの製造方法によ
れば、■熱容量が大きい表面材を用いていても金属板と
同様の速度で複合パネルを製造できる。0表面材は内部
から加熱されるため保温時間が長く、プレヒータが不要
になる。■保温時間が長いため合成樹脂発泡体原料の反
応がスムーズとなり、発泡組織も均一となる。■表面材
が熱容量が大きいためキュアオーブンのエネルギー化が
従前より低減できる。特徴がある。As described above, according to the method for manufacturing a composite panel according to the present invention, (1) Even if a surface material with a large heat capacity is used, a composite panel can be manufactured at the same speed as a metal plate. Since the 0 surface material is heated from the inside, the heat retention time is long and a preheater is not required. ■Because the heat retention time is long, the reaction of the synthetic resin foam raw material becomes smoother, and the foam structure becomes more uniform. ■Since the surface material has a large heat capacity, the energy consumption of the curing oven can be reduced compared to before. It has characteristics.
第1図は本発明に係る複合パネルの製造方法の実施に供
する装置を示す説明図、第2図(al、(b)は搬送機
の一例を示す斜視図、第3図は本発明により製造された
複合パネルの一例を示す斜視図、第4図は上記パネルを
用いて構成した外壁の一例を示す縦断面図、第5図は搬
送機のその他の実施例を示す説明図、第6図(al〜(
elは複合パネルのその他の形状例を示す説明図である
。
特許出願人 1、・・む丁−株式
会社アイジー技術研究所□′
第2図
(rAン
第31iiQ
第S図
/′−5FIG. 1 is an explanatory diagram showing an apparatus for carrying out the method for manufacturing a composite panel according to the present invention, FIGS. 2 (al) and (b) are perspective views showing an example of a conveying machine, and FIG. FIG. 4 is a vertical sectional view showing an example of an outer wall constructed using the above-mentioned panel; FIG. 5 is an explanatory view showing another embodiment of the conveyor; FIG. 6 (al〜(
el is an explanatory diagram showing other examples of shapes of the composite panel. Patent Applicant 1. Muting - IG Technical Research Institute □' Figure 2 (rA An No. 31iiQ Figure S/'-5
Claims (1)
たリフタから表面材の木口を当接して連続帯として遠赤
外線ヒータまたはマイクロ波ヒータに送給し、該ヒータ
で表面材を30〜100℃に加温した後に合成樹脂原料
の吐出機に案内し、該表面材上に吐出された反応、発泡
途中の上記原料上に裏面材を積層し、次に前記原料を反
応、発泡させると共に、キュアするキュアオーブンに送
給し、その出口に配した走行カッタによって表面材の長
さで裏面材と合成樹脂発泡体をカットしたことを特徴と
する複合パネルの製造方法。(1) The end of the surface material is brought into contact with a lifter made of ceramic and laminated with long surface materials, and the surface material is fed as a continuous band to a far-infrared heater or microwave heater, and the surface material is heated by the heater for 30 minutes. After heating to ~100°C, it is guided to a synthetic resin raw material discharge machine, a backing material is laminated on the raw material that is in the middle of reaction and foaming discharged onto the surface material, and then the raw material is reacted and foamed. A method for manufacturing a composite panel, characterized in that the back material and the synthetic resin foam are cut to the same length as the surface material by a traveling cutter placed at the exit of the curing oven.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61088671A JPS62244630A (en) | 1986-04-16 | 1986-04-16 | Manufacture of composite panel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61088671A JPS62244630A (en) | 1986-04-16 | 1986-04-16 | Manufacture of composite panel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62244630A true JPS62244630A (en) | 1987-10-26 |
JPH0570567B2 JPH0570567B2 (en) | 1993-10-05 |
Family
ID=13949280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61088671A Granted JPS62244630A (en) | 1986-04-16 | 1986-04-16 | Manufacture of composite panel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62244630A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5379665A (en) * | 1991-06-19 | 1995-01-10 | Shimano Inc. | Bicycle pedal |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7459113B2 (en) | 2004-03-08 | 2008-12-02 | Eastman Chemical Company | Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient |
US7935399B2 (en) | 2004-09-02 | 2011-05-03 | Grupo Petrotemex, S.A. De C.V. | Low melting polyester polymers |
-
1986
- 1986-04-16 JP JP61088671A patent/JPS62244630A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5379665A (en) * | 1991-06-19 | 1995-01-10 | Shimano Inc. | Bicycle pedal |
Also Published As
Publication number | Publication date |
---|---|
JPH0570567B2 (en) | 1993-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |