JPS62238713A - Manufacture of resin foam-molded product - Google Patents
Manufacture of resin foam-molded productInfo
- Publication number
- JPS62238713A JPS62238713A JP61081550A JP8155086A JPS62238713A JP S62238713 A JPS62238713 A JP S62238713A JP 61081550 A JP61081550 A JP 61081550A JP 8155086 A JP8155086 A JP 8155086A JP S62238713 A JPS62238713 A JP S62238713A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- resin
- molded product
- vent hole
- foam molded
- 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.)
- Pending
Links
- 239000011347 resin Substances 0.000 title claims abstract description 38
- 229920005989 resin Polymers 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 55
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000006260 foam Substances 0.000 claims description 38
- 239000012948 isocyanate Substances 0.000 claims description 5
- 150000002513 isocyanates Chemical class 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 4
- 150000003077 polyols Chemical class 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims 1
- 239000011496 polyurethane foam Substances 0.000 claims 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 9
- 238000005187 foaming Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000006082 mold release agent Substances 0.000 abstract description 2
- 235000011089 carbon dioxide Nutrition 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- BWLKKFSDKDJGDZ-UHFFFAOYSA-N [isocyanato(phenyl)methyl]benzene Chemical compound C=1C=CC=CC=1C(N=C=O)C1=CC=CC=C1 BWLKKFSDKDJGDZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010097 foam moulding Methods 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、ウレタンの発泡成形体など樹脂発泡成形体
の製造方法の改良に係るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an improvement in a method for producing a resin foam molded product such as a urethane foam molded product.
（従来の技術）
従来、たとえば自動車シートクッション用の１クレタン
の発泡成形体の製造には、ポリオールとイソシアネート
の混合された液状の発泡性樹脂を成形型の成形部内で重
合および発泡の反応をさせ、反応時に発生する炭酸ガス
は成形部外に排出し、所定形の樹脂発泡成形体とされる
。そして通常は第７図に示すように上型の成形部の適所
にガス抜き孔１０ａを設けた成形型にて成形されている
。(Prior art) Conventionally, for example, in the production of a 1-cretan foam molded product for automobile seat cushions, a liquid foamable resin containing a mixture of polyol and isocyanate is subjected to polymerization and foaming reactions in the molding section of a mold. The carbon dioxide gas generated during the reaction is discharged to the outside of the molding section to form a resin foam molded product of a predetermined shape. Usually, as shown in FIG. 7, the molding is performed using a molding die that has gas vent holes 10a at appropriate positions in the molding section of the upper mold.
（発明が解決しようとする問題点）
しかし、入社の炭酸ガスの発生を伴う発泡反応の際には
、ガス抜き孔１０ａから排出される炭酸ガスに伴って未
反応の発泡性樹脂の一部も排出されるため、成形部外に
排出される発泡性樹脂のＲは通常注入機の２０％程度に
も達し、発泡性樹脂の大きな損失となっていた。また、
成形部から排出された未反応の発泡性樹脂は成形部外ぐ
発泡して、球状の発泡物１０ｂとなり、上型の外面や反
応炉内を汚すなどの問題を有していた。(Problem to be Solved by the Invention) However, during the foaming reaction that involves the generation of carbon dioxide gas, some of the unreacted foamable resin is also discharged from the gas vent hole 10a. Therefore, the R of the foamable resin discharged outside the molding section reaches about 20% of that of a normal injection machine, resulting in a large loss of foamable resin. Also,
The unreacted foamable resin discharged from the molding section foams outside the molding section to form a spherical foam 10b, which causes problems such as staining the outer surface of the upper mold and the inside of the reactor.
（問題点を解決りるための手段）
この発明は、下型と、ガス抜き孔を有する上型とにより
形成される成形部内に原料となる発泡性樹脂を供給し、
該樹脂を成形部内にて発泡充満さけて成形部と同形状の
樹脂発泡成形体を製造づるに際し、前記ガス抜き孔の上
型成形面側にはガス通気性を右するフィルタ材を配設す
ることによって、樹脂発泡成形体の成形時にお番ノる発
泡性樹脂の成形部外への流出を防止して、原料のＭＡＩ
１８の歩留りの向、ヒを図るとともに、作業環境の良化
を図るものである。(Means for solving the problems) This invention supplies a foamable resin as a raw material into a molding part formed by a lower mold and an upper mold having gas vent holes,
When producing a resin foam molded body having the same shape as the molding part by foaming and filling the molding part with the resin, a filter material for controlling gas permeability is provided on the molding surface side of the upper mold of the gas vent hole. This prevents the foamable resin from flowing out of the molding part during molding of the resin foam molding, and reduces the MAI of the raw material.
This aims to improve the yield rate of 18 and improve the working environment.
（作 用） 成形部内では発泡性樹脂の反応によりガスが発生づる。(for production) Gas is generated within the molding section due to the reaction of the foamable resin.
発生したガスは上型のガス抜き孔から排出される。未反
応の発泡性樹脂はフィルタ材により捕獲され、ガス抜き
孔からの流出が阻止される。The generated gas is exhausted from the gas vent hole in the upper mold. Unreacted foamable resin is captured by the filter material and prevented from flowing out through the gas vent holes.
発泡性の樹脂は成形部内にロスなく充満し、成形部と同
形状の樹脂発泡成形体が！！Ｊ造される。The foamable resin fills the molded part without loss, resulting in a resin foam molded product with the same shape as the molded part! ! J is built.
（実施例〉
次に、この発明の一実施例として、自動車のシートクッ
ション用のウレタン発泡成形体を製造する場合について
説明する。(Example) Next, as an example of the present invention, a case will be described in which a urethane foam molded body for an automobile seat cushion is manufactured.
まず、本例の実施に使用する成形型（モールド）１につ
いて説明する。First, a mold 1 used for carrying out this example will be explained.
第１図はコンベアＡ上に取付番ノられたアルミニウム製
の成形型１であって、下型２と一ヒ型３との一側部にヒ
ンジ部４と、その対向側部にクランプ部５が設けられて
いて、下型２上に上型３が開閉可能に載置されている。FIG. 1 shows an aluminum mold 1 mounted on a conveyor A, with a hinge part 4 on one side of a lower mold 2 and a first mold 3, and a clamp part 5 on the opposite side. An upper mold 3 is placed on the lower mold 2 so as to be openable and closable.
下型２にはウレタン発泡成形体Ｗの上面Ｗａ側を成形す
る成形面６ａが形成され、成形面６ａの周縁に上型３と
当接する当接面７が設けられている。上型３にはウレタ
ン発泡成形体Ｗの下面ｗｂ側を成形１゛る成形面６ｂが
設けられ、成形面６ｂの周縁に当接面７と密着状に当接
する密着面９が設けられて、下型２と上型３の両成形面
６ａ、６ｂ間にウレタン発泡成形体Ｗの成形部８が形成
されている。上型３の成形面６ｂの所定の適数部位には
ウレタン発泡成形体Ｗを得る際に生ずるガスを成形部８
外へ排出する細径のガス抜き孔１０が設【プられＣいる
。ガス抜き孔１０の孔径はウレタン発泡成形体Ｗの大き
ざにより適切なものとされるが、本例においては６〜１
０履程度とされ、本例上型３のガス抜き孔１０は略３０
ｃ１１間隔毎に１個、および成形部６ｂの凹部品位に適
数個が設けられて、発生するガスを十分に排出可能とさ
れている。ガス扱ぎ孔１０近傍の成形面６ｂ部位には、
後述づるフィルタ材１３を取付けるための止めピン１１
が突設されている。また、上型３の外面部には上型３の
開閉を操作する操作杆１２がクランプ部５側に付設され
ている。A molding surface 6a for molding the upper surface Wa side of the urethane foam molded article W is formed on the lower mold 2, and a contact surface 7 that contacts the upper mold 3 is provided at the periphery of the molding surface 6a. The upper mold 3 is provided with a molding surface 6b that molds the lower surface wb side of the urethane foam molded product W, and a contact surface 9 that closely contacts the contact surface 7 is provided on the periphery of the molding surface 6b. A molded portion 8 of the urethane foam molded product W is formed between the molding surfaces 6a and 6b of the lower mold 2 and the upper mold 3. Gas generated when obtaining the urethane foam molded product W is supplied to a predetermined appropriate number of parts of the molding surface 6b of the upper die 3 in the molding section 8.
A small diameter gas vent hole 10 is provided to discharge the gas to the outside. The diameter of the gas vent hole 10 is set appropriately depending on the size of the urethane foam molded product W, but in this example, the diameter is 6 to 1.
The gas vent hole 10 of the upper mold 3 in this example is approximately 30 mm.
One piece is provided at every interval c11, and an appropriate number of pieces are provided at the concave portion of the molded portion 6b, so that the generated gas can be sufficiently discharged. On the molding surface 6b near the gas handling hole 10,
Fixing pin 11 for attaching filter material 13 to be described later
is installed protrudingly. Further, on the outer surface of the upper mold 3, an operating rod 12 for operating the opening and closing of the upper mold 3 is attached to the clamp portion 5 side.
次に前記成形型１によりウレタン発泡成型体Ｗを成形す
る方法を第３図〜第６図に基づいて説明ηる。Next, a method for molding the urethane foam molded body W using the mold 1 will be explained based on FIGS. 3 to 6.
第３図において、コンベアＡ上を位置Ｐ１へ搬送されて
くる成形型１は上型３が開状態とされていて、下型２．
上型３の両成形面６ａ、６ｂにはシリコンワックスなど
の離型剤が塗布される。続い℃１ひ７１１’ ２へ搬送
された成形型１の上型３の成形面６ｂにガス抜き孔１０
を覆うようにフィルタ材１３が止めピン１１〜１１に止
着される。フィルタ４４１３は成形部８内で発生する炭
酸ガスを通過させる微細な通気孔を右しかつ発泡反応さ
せる未反応の樹脂を通過させない材料が使用されるが、
このためには１００μｍ程度の微細空隙からなる材質が
望ましく、特にこの実施例においては成形部６ｂに沿っ
て止着可能な可撓性を有づ゛る不織布や１ウレタン発泡
成形体Ｗと同質のウレタンクッションフオームのシート
が使用される。第４図には、フィルタ４４１３にウレタ
ン発泡成形体Ｗと同質のウレタンクッションフオームの
シート１３ａを使用した例を示し、厚さ３ＨＲ程度の所
定形状に形成されて、少なくとし一つのガス抜き孔１０
を覆う人ぎさとされている。フィルタ材１３は成形部６
ｂに沿うにうに成形面６ｂのピン１１に止着される。In FIG. 3, the upper mold 3 of the mold 1 being conveyed to the position P1 on the conveyor A is in an open state, and the lower mold 2.
Both molding surfaces 6a and 6b of the upper mold 3 are coated with a mold release agent such as silicone wax. Subsequently, gas vent holes 10 are formed in the molding surface 6b of the upper mold 3 of the mold 1, which is transported to ℃ 1hi 711' 2.
The filter material 13 is fixed to the fixing pins 11 to 11 so as to cover the area. The filter 4413 is made of a material that has fine ventilation holes that allow the carbon dioxide gas generated in the molding section 8 to pass through, and that does not allow the unreacted resin that undergoes the foaming reaction to pass through.
For this purpose, it is desirable to use a material with fine voids of about 100 μm, and in particular, in this embodiment, a flexible nonwoven fabric that can be fixed along the molded part 6b or a material of the same quality as the urethane foam molded product W is preferable. A urethane cushion foam sheet is used. FIG. 4 shows an example in which a urethane cushion foam sheet 13a of the same quality as the urethane foam molded product W is used as the filter 4413.
It is said to be a crowded place. Filter material 13 is molded part 6
It is fixed to the pin 11 on the molding surface 6b along the direction b.
フィルタ材１３によりずべてのガス抜き孔１０を覆われ
た成形型１は位置Ｐ３に搬送され、この位置Ｐ３に配設
されている樹脂原料注入機１４により下型２内へ所定量
の液状原料が注入される。The mold 1 with all the gas vent holes 10 covered by the filter material 13 is transported to position P3, and a predetermined amount of liquid raw material is injected into the lower mold 2 by the resin raw material injector 14 disposed at this position P3. is injected.
樹脂原料注入機１４は触媒剤としてアミン系のジ・エタ
ノールアミンが所定量混合されたポリオールと、イソシ
アネートとを略２対１の混合比で混合して液状原料を作
りながら注入可能なものとされている。所定量の液状原
料が注入されると位置Ｐ３に近接した位置Ｐ４で直らに
下型２上に上型３が閉じ合されてクランプ部５によりク
ランプされる。The resin raw material injector 14 is capable of injecting a liquid raw material by mixing a polyol containing a predetermined amount of amine-based diethanolamine as a catalyst and isocyanate at a mixing ratio of approximately 2:1. ing. When a predetermined amount of liquid raw material is injected, the upper mold 3 is immediately closed onto the lower mold 2 and clamped by the clamp portion 5 at a position P4 close to the position P3.
クランプされた成形型１はコンベア八によりトンネル状
の加熱炉Ｆｔ、：１１１２送されて加熱される。加熱炉
Ｆ内の温度は原料のイソシアネートにジフェニルメタン
イソシアネート（ＭＤＩ）を使用しているときには５０
℃、トルエンジイソシアネート（ＴＤＩ）のときには１
１０℃に保たれていて、液状原料は発泡、膨張して成形
部８内に充満しＣ固化する。発泡による天吊の炭酸ガス
はガス抜き孔１０から成形型１外に排出されるが、ガス
抜き孔１０はフィルタ材１３により覆われていることに
より成形部８内の未反応の液状原料はガス抜き孔１０か
ら排出されて１コスすることなく成形部８内で発泡して
固化する。The clamped mold 1 is conveyed by a conveyor 8 to a tunnel-shaped heating furnace Ft, 1112, where it is heated. The temperature in the heating furnace F is 50 when diphenylmethane isocyanate (MDI) is used as the raw material isocyanate.
°C, 1 for toluene diisocyanate (TDI)
The temperature is maintained at 10° C., and the liquid raw material foams and expands to fill the molding section 8 and solidify. The suspended carbon dioxide due to foaming is discharged to the outside of the mold 1 through the gas vent hole 10, but since the gas vent hole 10 is covered with the filter material 13, the unreacted liquid raw material in the molding section 8 is released as a gas. The foam is discharged from the punch hole 10 and foams and solidifies within the molding part 8 without forming a single layer.
成形部８内に充満、固化しＣ成形されたウレタン発泡成
形体Ｗはさらにその復の反応を十分に行なわせた後、加
熱炉Ｆ外に搬送されて、位置Ｐ５でクランプ部５の締め
付けが解かれ、操作杆１２が持ちトげられてウレタン発
泡成形体Ｗが成形型１内から取り出される。The urethane foam molded product W filled in the molding section 8, solidified, and C-shaped is further subjected to a sufficient reaction, and then transported to the outside of the heating furnace F, where the clamping section 5 is tightened at a position P5. The urethane foam molded product W is removed from the mold 1 by being untied and the operating rod 12 is lifted.
成形された１ウレタン発泡成型休Ｗの表面部にはフィル
タ材１３のウレタンフオームのシート１３ａが一体状に
入って、第６図に示されるように下面ｗｂ側の構成部と
なっている。A urethane foam sheet 13a of the filter material 13 is integrally inserted into the surface portion of the molded 1-urethane foam molding W, forming a component on the lower surface wb side, as shown in FIG.
この実施例においては、フィルタ材１３にウレタン発泡
成形体Ｗと同質のウレタンクッションのシート１３ａを
用いたことにより、成形されたーウレタン発泡成形体Ｗ
ＧよＪべて同質樹脂よりなり、弾性など機械的性質を均
質なものとすることができる。In this embodiment, by using a urethane cushion sheet 13a of the same quality as the urethane foam molded product W as the filter material 13, the molded urethane foam molded product W
Both G and J are made of the same resin, allowing for uniform mechanical properties such as elasticity.
またフィルタ材１３に多数の微細孔を有する不織布を用
いる場合には、不織布がウレタン発泡成形体Ｗの下面ｗ
ｂ側に貼着状に埋込されて、不織布の大きな引張り強度
に基づきウレタン発泡成形体Ｗの下面ｗｂ側強度を高め
ることができる。In addition, when a nonwoven fabric having a large number of micropores is used for the filter material 13, the nonwoven fabric is
It is embedded in a sticky manner on the b side, and the strength on the lower surface wb side of the urethane foam molded product W can be increased based on the large tensile strength of the nonwoven fabric.
なお、前記した実施例はイソシアネートとポリオールよ
りウレタン発泡成形体Ｗを製造する場合について説明し
たが、本発明はこれに限定するものではなく、発泡性樹
脂より樹脂ｙｉ！泡成形成形体造する場合に広く適用し
得る。In addition, although the above-mentioned Example explained the case where the urethane foam molded article W was manufactured from isocyanate and polyol, the present invention is not limited to this, and the resin yi! It can be widely applied to the production of foam molded articles.
（発明の効果）
この発明は上型と、ガス抜き孔を有する上型とにより形
成される成形部内に原料となる発泡性樹脂を供給し、該
樹脂を成形部内にて発泡充満させて成形部と同形状の樹
脂発泡成形体を製造するに際し、前記ガス抜き孔の上型
成形面側にはガス通気性を有するフィルタ材を配設づ°
ることににす、成形型の成形部内に注入された樹脂原料
が発泡する際に成形部外に排出することを防止して、原
料歩留りの向上と作業場内のＴＭ境を良好なものとする
ことができる効果を有する。(Effects of the Invention) This invention supplies a foamable resin as a raw material into a molding part formed by an upper mold and an upper mold having gas vent holes, and causes the resin to foam and fill the molding part. When manufacturing a resin foam molded product having the same shape as the above, a filter material having gas permeability is provided on the molding surface side of the upper mold of the gas vent hole.
In particular, the resin raw material injected into the molding part of the mold is prevented from being discharged outside the molding part when foaming, thereby improving the raw material yield and creating a good TM boundary in the workplace. It has the effect that it can.
第１図は本発明の実施に使用する成形型の一例を承り断
面図、第２図は成形型の平面図、第３図は成形過程の概
略図、第４図、第５図は成形工程を示り断面図、第６図
は樹脂発泡成形体の底面側の斜視図である。第７図は従
来の成形方法にＪ３りる■程説明図である。Fig. 1 is a cross-sectional view of an example of a mold used in carrying out the present invention, Fig. 2 is a plan view of the mold, Fig. 3 is a schematic diagram of the molding process, and Figs. 4 and 5 are the molding process. 6 is a cross-sectional view, and FIG. 6 is a perspective view of the bottom side of the resin foam molded product. FIG. 7 is an explanatory diagram of J3 steps in the conventional molding method.
Claims (3)
れる成形部内に原料となる発泡性樹脂を供給し、該樹脂
を成形部内にて発泡充満させて成形部と同形状の樹脂発
泡成形体を製造するに際し、前記ガス抜き孔の上型成形
面側にはガス通気性を有するフィルタ材を配設すること
を特徴とする樹脂発泡成形体の製造方法。(1) A foamable resin as a raw material is supplied into the molding part formed by a lower mold and an upper mold having gas vent holes, and the resin is foamed and filled in the molding part to form a resin with the same shape as the molding part. 1. A method for producing a resin foam molded product, comprising disposing a filter material having gas permeability on the upper molding surface side of the gas vent hole when manufacturing the foam molded product.
なり、かつ樹脂発泡成形体がポリウレタンの発泡成形体
である特許請求の範囲第１項記載の樹脂発泡成形体の製
造方法。(2) The method for producing a resin foam molded article according to claim 1, wherein the foamable resin is made of polyol and isocyanate, and the resin foam molded article is a polyurethane foam molded article.
いは多数の微細孔を有する発泡性樹脂と同質のシートで
ある特許請求の範囲第１項記載の樹脂発泡成形体の製造
方法。(3) The method for manufacturing a resin foam molded article according to claim 1, wherein the filter material is a nonwoven fabric having a large number of micropores, or a sheet having the same quality as a foamable resin and having a large number of micropores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61081550A JPS62238713A (en) | 1986-04-09 | 1986-04-09 | Manufacture of resin foam-molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61081550A JPS62238713A (en) | 1986-04-09 | 1986-04-09 | Manufacture of resin foam-molded product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62238713A true JPS62238713A (en) | 1987-10-19 |
Family
ID=13749400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61081550A Pending JPS62238713A (en) | 1986-04-09 | 1986-04-09 | Manufacture of resin foam-molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62238713A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5356580A (en) * | 1992-09-02 | 1994-10-18 | Woodbridge Foam Corp. | Method of using a vented mold |
| US5723152A (en) * | 1995-08-01 | 1998-03-03 | Bridgestone Corporation | Apparatus for vacuum molding expanded synthetic resin parts |
| JP2013188912A (en) * | 2012-03-13 | 2013-09-26 | Panasonic Corp | Resin molding and mold device |
| WO2017002676A1 (en) * | 2015-06-29 | 2017-01-05 | 株式会社ブリヂストン | Mold for synthetic-resin foam molding, process for producing foam-molded synthetic resin using said mold, and foam-molded synthetic resin produced by said production process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52114665A (en) * | 1976-03-22 | 1977-09-26 | Shin Nippon Kakou Kk | Process for expansion molding and molded goods |
| JPS5323359A (en) * | 1976-08-17 | 1978-03-03 | Matsushita Electric Ind Co Ltd | Process for manufacture of molded resin foam product |
| JPS5336164B1 (en) * | 1970-05-08 | 1978-09-30 |
-
1986
- 1986-04-09 JP JP61081550A patent/JPS62238713A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5336164B1 (en) * | 1970-05-08 | 1978-09-30 | ||
| JPS52114665A (en) * | 1976-03-22 | 1977-09-26 | Shin Nippon Kakou Kk | Process for expansion molding and molded goods |
| JPS5323359A (en) * | 1976-08-17 | 1978-03-03 | Matsushita Electric Ind Co Ltd | Process for manufacture of molded resin foam product |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5356580A (en) * | 1992-09-02 | 1994-10-18 | Woodbridge Foam Corp. | Method of using a vented mold |
| US5482721A (en) * | 1992-09-02 | 1996-01-09 | Woodbridge Foam Corporation | Mold having vent passageways to obviate trimming of flash |
| US5587183A (en) * | 1992-09-02 | 1996-12-24 | Woodbridge Foam Corporation | Mold having vent passageways to obivate trimming of flash |
| USRE36413E (en) * | 1992-09-02 | 1999-11-30 | Woodbridge Foam Corporation | Method of using a vented mold |
| USRE36572E (en) * | 1992-09-02 | 2000-02-15 | Woodbridge Foam Corporation | Mold having vent passageways to obviate trimming of flash |
| US5723152A (en) * | 1995-08-01 | 1998-03-03 | Bridgestone Corporation | Apparatus for vacuum molding expanded synthetic resin parts |
| US5895615A (en) * | 1995-08-01 | 1999-04-20 | Bridgestone Corporation | Method for molding expanded synthetic resin |
| JP2013188912A (en) * | 2012-03-13 | 2013-09-26 | Panasonic Corp | Resin molding and mold device |
| WO2017002676A1 (en) * | 2015-06-29 | 2017-01-05 | 株式会社ブリヂストン | Mold for synthetic-resin foam molding, process for producing foam-molded synthetic resin using said mold, and foam-molded synthetic resin produced by said production process |
| JP2017013262A (en) * | 2015-06-29 | 2017-01-19 | 株式会社ブリヂストン | Synthetic resin foam molding tool, production method of synthetic resin foam molding using molding tool, and synthetic resin foam molding molded by production method |
| CN107921668A (en) * | 2015-06-29 | 2018-04-17 | 株式会社普利司通 | Synthetic resin foaming molding mold, using the molding die synthetic resin foam molded product manufacture method and pass through the molding synthetic resin foam molded product of the manufacture method |
| CN107921668B (en) * | 2015-06-29 | 2020-05-15 | 株式会社普利司通 | Synthetic resin foam molding method and mold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1272571A (en) | Method for manufacturing rim composites | |
| US8328972B2 (en) | Process for the production of a foamed article | |
| AU674008B2 (en) | Method and apparatus for making formed laminate and resultant product | |
| CA1283765C (en) | Process for preparing polyurethane foams having zones of differing hardness | |
| JPS62238713A (en) | Manufacture of resin foam-molded product | |
| US6358445B1 (en) | Process for manufacturing multilayered foam articles | |
| JP4883404B2 (en) | Method for producing foamed article with skin | |
| JPH08127038A (en) | Manufacture of reactive injection foamed molded product | |
| US6527992B2 (en) | Foam transfer method for making formed laminate | |
| JP2000263563A (en) | Method and apparatus for foam molding | |
| JP2000025057A (en) | Manufacture of fiber-reinforced thermoplastic resin expanded molding | |
| JPH07232333A (en) | Manufacture of seat pad for vehicle, having air hole, and mold to be used therefore | |
| JPS6315888B2 (en) | ||
| JP2756840B2 (en) | Method for manufacturing foam molded article with embedded insert | |
| JPH02158310A (en) | Manufacture of skin integral foamed molding | |
| JP2781610B2 (en) | Skin-integrated molded sheet and method for producing the same | |
| JPS61132311A (en) | Manufacture of urethane product | |
| JP2006502020A (en) | Method for manufacturing hollow molded part and machine tool for manufacturing the same | |
| JP3250239B2 (en) | RTM molding method | |
| JPS6017690B2 (en) | Manufacturing equipment for highly elastic polyurethane foam moldings | |
| JPH01223047A (en) | Head rest stay and its manufacture | |
| JP2002127179A (en) | Laminated molding and its molding method | |
| JPH034368B2 (en) | ||
| JPS6210813B2 (en) | ||
| JPH04253893A (en) | Foam-molded product for seat and manufacture thereof |