JPH06322173A - Method for producing porous resin molded body - Google Patents
Method for producing porous resin molded bodyInfo
- Publication number
- JPH06322173A JPH06322173A JP11313393A JP11313393A JPH06322173A JP H06322173 A JPH06322173 A JP H06322173A JP 11313393 A JP11313393 A JP 11313393A JP 11313393 A JP11313393 A JP 11313393A JP H06322173 A JPH06322173 A JP H06322173A
- Authority
- JP
- Japan
- Prior art keywords
- molded body
- water
- soluble compound
- porous resin
- porous
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 30
- 239000011347 resin Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 26
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 16
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 6
- 239000004014 plasticizer Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 239000011342 resin composition Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- IRHTZOCLLONTOC-UHFFFAOYSA-N hexacosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCO IRHTZOCLLONTOC-UHFFFAOYSA-N 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000009210 therapy by ultrasound Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 229940094933 n-dodecane Drugs 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
(57)【要約】
【目的】 マトリックス樹脂に除去可能物質を混合して
成形した後、除去可能物質を除去して多孔性樹脂成形体
を得るに当り、除去可能物質を再利用可能にマトリック
ス樹脂から除去する方法を提供する。
【構成】 マトリックス樹脂に融点が１００℃以下の水
難溶性化合物を混合して成形し、この成形体を前記化合
物の融点以上、１００℃以下の水中で機械的振動を与え
て水難溶性化合物を除去する方法。(57) [Summary] [Purpose] Removable substance can be reused when a removable substance is mixed with a matrix resin to form a porous resin molded product by removing the removable substance. To provide a way to remove from. [Structure] A sparingly water-soluble compound having a melting point of 100 ° C. or lower is mixed with a matrix resin to be molded, and the molded body is subjected to mechanical vibration in water having a melting point of the compound or higher and 100 ° C. or lower to remove the sparingly water-soluble compound. Method.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、バッテリー・セパレー
ター、精密濾過膜などの分離膜、透気性ジャンパーなど
の衣料品、おむつ、生理用品などの衛生用品等として有
用な多孔性樹脂成形体の製造方法に関するものである。FIELD OF THE INVENTION The present invention relates to the production of a porous resin molding useful as a battery / separator, a separation membrane such as a microfiltration membrane, clothing such as an air-permeable jumper, sanitary articles such as diapers and sanitary articles. It is about the method.
【０００２】[0002]
【従来の技術】多孔性のフィルムやシートのような多孔
性樹脂成形体は、従来より各種用途に広く使用されてい
る。例えば、バッテリー・セパレーターとして使用する
ための多孔性樹脂成形体は、一般に、超高分子量ポリエ
チレンとステアリルアルコール等の可塑剤とから成る樹
脂組成物からフィルムまたはシートを形成し、次いで、
フィルムまたはシートに含まれる可塑剤をイソプロパノ
ール、エタノール、ヘキサンなどの有機溶媒で処理し、
抽出除去することによって製造していた。2. Description of the Related Art Porous resin moldings such as porous films and sheets have been widely used for various purposes. For example, a porous resin molding for use as a battery separator generally forms a film or sheet from a resin composition composed of ultra-high molecular weight polyethylene and a plasticizer such as stearyl alcohol, and then,
The plasticizer contained in the film or sheet is treated with an organic solvent such as isopropanol, ethanol or hexane,
It was manufactured by extracting and removing.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
可塑剤除去工程において、使用されている有機溶媒は引
火性が高いため、その前工程であるフィルム或いはシー
トの押出成形工程との連続プロセス化が極めて困難であ
り、生産性が著しく劣っていた。また、有機溶媒に抽出
された可塑剤を再利用するために回収しようとしても有
機溶媒は可塑剤の良溶媒であるため、その分離が難し
く、多孔性樹脂成形体の生産コストもなかなか低減する
ことができなかった。However, in the conventional plasticizer removing step, since the organic solvent used is highly flammable, it is possible to form a continuous process with the film or sheet extrusion forming step which is the preceding step. It was extremely difficult and productivity was extremely poor. In addition, even if an attempt is made to recover the plasticizer extracted in the organic solvent in order to reuse it, the organic solvent is a good solvent for the plasticizer, so it is difficult to separate it, and the production cost of the porous resin molding can be reduced easily. I couldn't.
【０００４】[0004]
【課題を解決するための手段】そこで本発明者らは、上
記のような問題の解決された多孔性の樹脂成形体を製造
する方法を提供すべく鋭意検討した結果、樹脂成形体に
含まれる水難溶性化合物を、水中に浸漬して、水難溶性
化合物の融点以上の温度に加熱し、かつ機械的振動を与
えることにより、水難溶性化合物を成形体から除去する
ことによって所期の目的が達成されることを見出し、本
発明を完成するに到った。The inventors of the present invention have conducted extensive studies to provide a method for producing a porous resin molded body in which the above problems have been solved. The desired object is achieved by removing the poorly water-soluble compound from the molded body by immersing the poorly water-soluble compound in water, heating it to a temperature above the melting point of the poorly water-soluble compound, and applying mechanical vibration. It was found that the present invention has been completed.
【０００５】即ち、本発明の要旨は、マトリックス樹脂
にマトリックス樹脂との相溶性が良く、しかも、１００
℃以下の融点を有する水難溶性化合物を混合し、これを
水難溶性化合物の沸点以下の温度で成形体とし、該成形
体を、水難溶性化合物の融点以上、１００℃以下の温度
の水中で機械的振動を与えることにより該水難溶性化合
物を除去して、多孔性の成形体を得ることを特徴とする
多孔性樹脂成形体の製造方法に存する。That is, the gist of the present invention is that the matrix resin has a good compatibility with the matrix resin and is 100
A sparingly water-soluble compound having a melting point of ℃ or less is mixed to form a molded body at a temperature not higher than the boiling point of the sparingly water-soluble compound, and the molded body is mechanically treated in water at a temperature not lower than the melting point of the sparingly water-soluble compound and not higher than 100 ° C. A method for producing a porous resin molded body is characterized in that the sparingly water-soluble compound is removed by applying vibration to obtain a porous molded body.
【０００６】以下本発明を説明するに、本発明で使用す
る樹脂組成物のマトリックス樹脂としては、後述の水難
溶性化合物の融点より高い融点を有するものであれば特
に制限はなく、例えば、ポリエチレン、ポリプロピレン
等のポリオレフィン樹脂、ナイロン樹脂、ポリエステル
樹脂等が挙げられる。中でも、粘度平均分子量３×１０
5 以上、好ましくは、５×１０5 〜４×１０ 6 、特に好
ましくは、１．５×１０6 〜２．５×１０6 の超高分子
量ポリエチレンが好適に使用できる。The present invention will be described below by using the present invention.
The matrix resin of the resin composition
If it has a melting point higher than that of the soluble compound,
There is no limitation on, for example, polyethylene, polypropylene
Polyolefin resin, nylon resin, polyester, etc.
Resin etc. are mentioned. Above all, the viscosity average molecular weight is 3 × 10.
FiveOr more, preferably 5 × 10Five~ 4 x 10 6Especially good
More preferably, 1.5 × 106~ 2.5 × 106Ultra polymer
Polyethylene is preferably used.
【０００７】本発明においては、このようなマトリック
ス樹脂に水にほとんど溶解しない化合物、すなわち、水
難溶性化合物を混合する。本発明で使用する水難溶性化
合物は、上記マトリックス樹脂との相溶性が良く、しか
も、１００℃より低い融点を有する。例えば、従来多孔
性樹脂成形体の製造の際に使用されている可塑剤などが
挙げられる。中でも、常温で固体であるパラフィンワッ
クス、或いは、ステアリルアルコール、セリルアルコー
ルなどの高級脂肪族アルコール、常温で液体のｎ−デカ
ン、ｎ−ドデカンなどのｎ−アルカン類、流動パラフィ
ン、灯油などが好適に使用できる。In the present invention, such a matrix resin is mixed with a compound that is hardly soluble in water, that is, a poorly water-soluble compound. The poorly water-soluble compound used in the present invention has good compatibility with the matrix resin and has a melting point lower than 100 ° C. For example, plasticizers and the like which have been conventionally used in the production of porous resin moldings can be mentioned. Among them, paraffin wax which is solid at room temperature, higher aliphatic alcohols such as stearyl alcohol and ceryl alcohol, n-decane which is liquid at room temperature, n-alkanes such as n-dodecane, liquid paraffin, and kerosene are preferable. Can be used.
【０００８】水難溶性化合物のマトリックス樹脂への相
溶性の良、不良は１６０〜２００℃における、この２つ
の成分の溶融混練体が安定的に溶融押出できる程度の均
一分散系であるか否かで分かれる。具体的にはフローテ
スターで該溶融混練体の見掛け粘度を多数測定した場
合、その振れ幅が３０％以下、好ましくは１０％以下に
収まる程度の安定した流動性を有するものを相溶性が良
いとする。The compatibility of the poorly water-soluble compound with the matrix resin is good or poor depending on whether the melt-kneaded body of these two components is a uniform dispersion system at a temperature of 160 to 200 ° C., which is capable of stable melt extrusion. Divide. Specifically, when a large number of apparent viscosities of the melt-kneaded product are measured with a flow tester, those having stable fluidity with a swing range of 30% or less, preferably 10% or less are considered to have good compatibility. To do.
【０００９】マトリックス樹脂と水難溶性化合物の使用
割合は、通常、マトリックス樹脂が５〜６０重量％、好
ましくは、１０〜５０重量％で、水難溶性化合物が４０
〜９５重量％、好ましくは、９０〜５０重量％の範囲か
ら選ばれる。本発明においては、樹脂組成物には更に公
知の各種添加剤、例えば、酸化防止剤などを樹脂組成物
中、０．０１〜５重量％程度併用してもよい。The ratio of the matrix resin and the poorly water-soluble compound used is usually 5 to 60% by weight, preferably 10 to 50% by weight of the matrix resin and 40% by weight of the poorly water-soluble compound.
To 95% by weight, preferably 90 to 50% by weight. In the present invention, the resin composition may further contain various known additives such as antioxidants in an amount of about 0.01 to 5% by weight in the resin composition.
【００１０】上記樹脂組成物の各成分は、公知の一軸ま
たは二軸の押出機で均一に混練し、溶融押出成形する。
押出量、押出安定性の点から二軸の押出機が好適に使用
される。溶融押出成形は、通常、１４０〜２４０℃の温
度で行い、５〜５０μ或いは５０〜３００μの厚さでフ
ィルムまたはシート状に押し出す。The respective components of the above resin composition are uniformly kneaded by a known uniaxial or biaxial extruder and melt-extruded.
A twin-screw extruder is preferably used in terms of extrusion amount and extrusion stability. The melt extrusion molding is usually carried out at a temperature of 140 to 240 ° C. and extruded into a film or sheet with a thickness of 5 to 50 μ or 50 to 300 μ.
【００１１】本発明においては、溶融押出成形したフィ
ルムまたはシートを常法に従い冷却した後、該フィルム
またはシートに含まれる水難溶性化合物を除去すること
により多孔化する。水難溶性化合物の除去は、多孔化さ
れた成形体を、水難溶性化合物の融点以上の温度に加熱
された水に浸漬して機械的振動を与えながら処理するこ
とによって行われる。In the present invention, the melt-extruded film or sheet is cooled by a conventional method, and then the poorly water-soluble compound contained in the film or sheet is removed to make it porous. The sparingly water-soluble compound is removed by immersing the porous body in water heated to a temperature equal to or higher than the melting point of the sparingly water-soluble compound and treating it with mechanical vibration.
【００１２】例えば、多孔化された成形体を、通常、１
０〜１００℃、好ましくは、５０〜９５℃に保持された
水中で、超音波処理或いは攪拌などの機械的振動を与え
る方法などが挙げられる。超音波処理を行う場合は、通
常、周波数が１０ｋＨｚ以上、好ましくは、２０〜６０
ｋＨｚ、単位水量当たりの超音波出力が５Ｗ／リットル
以上、好ましくは、３０Ｗ／リットル以上、特に、５０
〜１００Ｗ／リットルで、２分〜２時間、好ましくは、
５分〜６０分の条件で行うことができる。For example, a porous molded body is usually prepared by
Examples include a method of applying mechanical vibration such as ultrasonic treatment or stirring in water maintained at 0 to 100 ° C., preferably 50 to 95 ° C. When performing ultrasonic treatment, the frequency is usually 10 kHz or higher, preferably 20 to 60.
kHz, ultrasonic power per unit amount of water is 5 W / liter or more, preferably 30 W / liter or more, particularly 50
~ 100 W / l, 2 minutes to 2 hours, preferably
It can be performed under the condition of 5 minutes to 60 minutes.
【００１３】また、攪拌処理を行う場合は、通常、単位
体積当たりの攪拌所要動力が５Ｗ／ｍ3 以上、好ましく
は、４０〜２，２００Ｗ／ｍ3 で、２分以上、好ましく
は、５分〜６０分の条件で行うことができる。本発明に
おいては、上記機械的処理と同時に成形体の表面をスポ
ンジ、ブラシなどで擦ることによってさらに水難溶性化
合物の除去効率を上げることができる。When the stirring treatment is carried out, the power required for stirring per unit volume is usually 5 W / m 3 or more, preferably 40 to 2,200 W / m 3 , and 2 minutes or more, preferably 5 minutes. It can be performed under the condition of -60 minutes. In the present invention, the efficiency of removing the poorly water-soluble compound can be further increased by rubbing the surface of the molded body with a sponge, a brush or the like simultaneously with the above mechanical treatment.
【００１４】上記のようにして多孔化したフィルムまた
はシートは、その用途により、機械的強度や通気性の向
上のため、或いは、孔の微多孔化のために、常法に従
い、一軸または二軸延伸或いは１００〜１８０℃程度で
熱固定を行ってもよい。かくして良好な機械的強度およ
び通気性を有する本発明の多孔性の樹脂成形体を得るこ
とができる。The film or sheet made porous as described above may be uniaxially or biaxially made in accordance with a conventional method in order to improve mechanical strength and air permeability, or to make pores microporous depending on its use. Stretching or heat setting at about 100 to 180 ° C may be performed. Thus, the porous resin molded product of the present invention having good mechanical strength and air permeability can be obtained.
【００１５】[0015]
【実施例】以下に実施例を挙げてさらに本発明を具体的
に説明する。 実施例１ 融点が１３５℃で、分子量（粘度平均）が２×１０6 の
超高分子量ポリエチレン粉末２０重量部とステアリルア
ルコール８０重量部をφ４０ｍｍの押出機に供給して、
２３０℃で混練しながら連続的に幅４００ｍｍ、ダイギ
ャップ１ｍｍのＴダイから押し出し、ドラフト率が１３
となるように引取り、冷却して、膜厚７０μｍのシート
を得た。EXAMPLES The present invention will be described in more detail with reference to the following examples. Example 1 20 parts by weight of ultra-high molecular weight polyethylene powder having a melting point of 135 ° C. and a molecular weight (viscosity average) of 2 × 10 6 and 80 parts by weight of stearyl alcohol were supplied to an extruder having a diameter of 40 mm.
Continuously extruding from a T-die with a width of 400 mm and a die gap of 1 mm while kneading at 230 ° C, and the draft rate was 13
And then cooled to obtain a sheet having a film thickness of 70 μm.
【００１６】得られたシートを、ステアリルアルコール
の融点以上の温度である８０℃に保持された水中に浸漬
し、周波数４０ｋＨｚ、単位水量当たりの出力３０Ｗ／
リットルの条件で４００秒間超音波処理すると同時に、
ウレタン製のスポンジでシート表面を擦ることによって
シート中のステアリルアルコールをシート中の濃度が１
重量％となるまで除去した。The obtained sheet was dipped in water maintained at 80 ° C., which is a temperature above the melting point of stearyl alcohol, to obtain a frequency of 40 kHz and an output of 30 W / unit of water.
Sonicate for 400 seconds under the condition of liter,
By rubbing the surface of the sheet with a urethane sponge, the concentration of stearyl alcohol in the sheet becomes 1
It was removed until it reached a weight percentage.
【００１７】次いで、表面温度１２５℃の加熱ピンチロ
ールにて３０秒間熱処理して膜厚３４μｍの多孔性樹脂
成形体を得た。この成形体の特性を表１に示した。 実施例２ 融点が１３５℃で、分子量（粘度平均）が２×１０6 の
超高分子量ポリエチレン粉末３０重量部とステアリルア
ルコール７０重量部をφ４０ｍｍの押出機に供給して、
２３０℃で混練しながら連続的に幅４００ｍｍ、ダイギ
ャップ１ｍｍのＴダイから押し出し、ドラフト率が１
１．４となるように引取り、冷却して、膜厚１００μｍ
のシートを得た。Then, heat treatment was carried out for 30 seconds with a heating pinch roll having a surface temperature of 125 ° C. to obtain a porous resin molding having a film thickness of 34 μm. The characteristics of this molded product are shown in Table 1. Example 2 30 parts by weight of ultra-high molecular weight polyethylene powder having a melting point of 135 ° C. and a molecular weight (viscosity average) of 2 × 10 6 and 70 parts by weight of stearyl alcohol were supplied to an extruder of φ40 mm,
Continuously extruding from a T-die with a width of 400 mm and a die gap of 1 mm while kneading at 230 ° C, and the draft rate is 1
The film thickness is 100 μm after being taken to 1.4 and cooled.
Got a sheet of.
【００１８】得られたシートを、ステアリルアルコール
の融点以上の温度である９０℃に保持された水中に浸漬
し、プロペラ翼の付いた攪拌機で単位体積当たりの攪拌
所要動力が１００Ｗ／ｍ3 に相当する攪拌を加えながら
１５分間処理してシート中のステアリルアルコールをシ
ート中の濃度が１重量％となるまで除去した。次いで、
表面温度１２５℃の加熱ピンチロールにて３０秒間熱処
理して膜厚６６μｍの多孔性樹脂成形体を得た。この成
形体の特性を表１に示した。The obtained sheet is dipped in water maintained at 90 ° C., which is a temperature above the melting point of stearyl alcohol, and the power required for stirring per unit volume is 100 W / m 3 with a stirrer equipped with a propeller blade. The mixture was treated for 15 minutes with stirring to remove the stearyl alcohol in the sheet until the concentration in the sheet became 1% by weight. Then
Heat treatment was performed for 30 seconds with a heating pinch roll having a surface temperature of 125 ° C. to obtain a porous resin molded body having a film thickness of 66 μm. The characteristics of this molded product are shown in Table 1.
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【発明の効果】本発明によれば、従来の有機溶媒法のよ
うな引火の問題がないので、フィルムまたはシートの押
出成形工程との連続プロセス化が可能となった。また、
処理液中に含まれる水難溶性化合物の分離・回収が容易
であり、それらの循環再使用も可能となるので、多孔性
フィルムまたはシートの生産コストが大幅に削減するこ
とができる。EFFECTS OF THE INVENTION According to the present invention, since there is no problem of ignition unlike the conventional organic solvent method, it is possible to realize a continuous process with the film or sheet extrusion molding step. Also,
Since the sparingly water-soluble compound contained in the treatment liquid can be easily separated and recovered and can be recycled and reused, the production cost of the porous film or sheet can be significantly reduced.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宇佐見 康 岡山県倉敷市潮通三丁目10番地 三菱化成 株式会社水島工場内 (72)発明者 渡辺 恭資 岡山県倉敷市潮通三丁目10番地 三菱化成 株式会社水島工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushi Usami 3-10, Shiodo, Kurashiki-shi, Okayama Mitsubishi Kasei Co., Ltd. Mizushima Plant (72) Inventor, Kyoji Watanabe 3--10, Shiodo, Kurashiki, Okayama Mizushima Plant, Mitsubishi Kasei Co., Ltd.
Claims (4)
の相溶性が良く、しかも、１００℃以下の融点を有する
水難溶性化合物を混合し、これを水難溶性化合物の沸点
以下の温度で成形して成形体とし、該成形体を、水難溶
性化合物の融点以上、１００℃以下の温度の水中で機械
的振動を与えることにより、該水難溶性化合物を除去し
て、多孔性の成形体を得ることを特徴とする多孔性樹脂
成形体の製造方法。1. A molded product is obtained by mixing a matrix resin with a poorly water-soluble compound having a good compatibility with the matrix resin and having a melting point of 100 ° C. or lower, and molding the mixture at a temperature not higher than the boiling point of the poorly water-soluble compound. Characterized in that the water-insoluble compound is removed by subjecting the green body to mechanical vibration in water at a temperature not lower than the melting point of the poorly water-soluble compound and not higher than 100 ° C. to obtain a porous molded body. A method for producing a porous resin molded body.
特徴とする多孔性樹脂成形体の製造方法。2. A method for producing a porous resin molded body, wherein ultrasonic waves are used as mechanical vibrations.
徴とする多孔性樹脂成形体の製造方法。3. A method for producing a porous resin molded body, wherein stirring is used as mechanical vibration.
機械的に摩擦することを特徴とする多孔性樹脂成形体の
製造方法。4. A method for producing a porous resin molded body, which comprises mechanically rubbing the surface of the molded body while applying mechanical vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11313393A JPH06322173A (en) | 1993-05-14 | 1993-05-14 | Method for producing porous resin molded body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11313393A JPH06322173A (en) | 1993-05-14 | 1993-05-14 | Method for producing porous resin molded body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06322173A true JPH06322173A (en) | 1994-11-22 |
Family
ID=14604391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11313393A Pending JPH06322173A (en) | 1993-05-14 | 1993-05-14 | Method for producing porous resin molded body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06322173A (en) |
-
1993
- 1993-05-14 JP JP11313393A patent/JPH06322173A/en active Pending
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