JPH0445812A - Supporting formation of filter - Google Patents
Supporting formation of filterInfo
- Publication number
- JPH0445812A JPH0445812A JP14855290A JP14855290A JPH0445812A JP H0445812 A JPH0445812 A JP H0445812A JP 14855290 A JP14855290 A JP 14855290A JP 14855290 A JP14855290 A JP 14855290A JP H0445812 A JPH0445812 A JP H0445812A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- porous membrane
- polytetrafluoroethylene
- filter
- plastics
- 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
- 230000015572 biosynthetic process Effects 0.000 title 1
- 239000012528 membrane Substances 0.000 claims abstract description 32
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 32
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 32
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 239000005060 rubber Substances 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 23
- 238000001746 injection moulding Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 230000002633 protecting effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000012466 permeate Substances 0.000 abstract 1
- 239000002648 laminated material Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 239000002759 woven fabric Substances 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 241000215040 Neso Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
Abstract
Description
【発明の詳細な説明】
「発明の目的」
本発明は機器、ハウジングに装着される通気フィルター
や保護フィルターおよびその製造方法に係り、好ましい
濾過作用を有し、しかも而（相性の高いフィルターおよ
びその簡易且つ的確な製造方法を提供しようとするもの
である。Detailed Description of the Invention "Object of the Invention" The present invention relates to a ventilation filter or a protective filter that is attached to equipment or housing, and a method for manufacturing the same, and provides a filter that has a preferable filtration action and is also highly compatible with the filter and its manufacturing method. The purpose is to provide a simple and accurate manufacturing method.
（産業上の利用分野）
本発明は、各種産業機器に最近特に通気性と同時に防水
、防塵の必要とされるセンリ′−１精密機器、電子部品
の保護の目的で機器、ハウジングに装着する通気フィル
ター、保護フィルターおよびその支持成形法に関するも
のである。(Industrial Application Field) The present invention relates to precision equipment, which has recently been required to be waterproof and dustproof as well as breathable in various industrial equipment, and ventilating devices installed in equipment and housings for the purpose of protecting electronic parts. The present invention relates to a filter, a protective filter, and a support molding method thereof.
（従来の技術）
ポリテトラフルオロエチレンの延伸によるフィブリル化
多孔質膜は孔隙の精度が高く、しかも微細であると共に
耐薬品性に優れているごとから各種産業機器におりる防
水防塵目的の如きに広く採用されているが、このボリテ
トラフルオｔ：１エヂレ７ （ＰＴＦＥ）多孔質膜、あ
るいはこれと通気性を有する織物、不織布材との積層品
を機器、ハウジング等に装着する方法としては、従来フ
ィルター取付部の寸法に合わせて打ち抜いたフィルター
を接着材で接着する方法、加熱ホーン、高周波量′着、
超音波融着などの方法でＰＴＦＥ多孔質側から加熱する
方法、あるいは金属製のハウジングに金属ワッシャない
しはガスケットを介在させてかしめる方法、ガスケット
リンングを介在させてネジ込むことにより装着する方法
が一般的に行われている。(Prior art) Fibrillated porous membranes made by stretching polytetrafluoroethylene have high pore precision, are fine, and have excellent chemical resistance, so they are used for waterproofing and dustproofing purposes in various industrial equipment. Although widely adopted, methods for attaching this porous PTFE membrane or a laminated product of this and a breathable woven or nonwoven material to equipment, housings, etc. are as follows: Conventional methods of gluing filters punched out to fit the dimensions of the filter mounting area, heating horns, high-frequency waves,
There are two methods: heating the PTFE porous side using methods such as ultrasonic welding, caulking the metal housing with a metal washer or gasket, and attaching it by screwing it in with a gasket ring. This is commonly done.
（発明が解決しようとする課題）
前述した接着、熱融着、かしめ、ネジ止め等の方法は、
制作工程において、必ず機器のハウジングを成形する工
程とフィルターを打ち抜いて取り付ける工程の２工程が
必要である。(Problem to be solved by the invention) The methods of adhesion, heat fusion, caulking, screwing, etc. described above are
The production process always requires two steps: molding the device housing and punching out and attaching the filter.
接着によるものは耐薬品性に優れた前記フィルター材と
の間に必ずしも安定した接着が得られず又熱融着による
ものは折角の前記フィルター材における組織、強度を阻
害変質し、しかもこれらの接着や熱融着法はフィルター
の片面のみが機器ハ。Adhesive adhesives do not necessarily provide stable adhesion with the filter material, which has excellent chemical resistance, and heat fusion adhesives impede and alter the structure and strength of the filter material. In the heat fusion method, only one side of the filter needs equipment.
ウジングに装着されているため、水圧、内圧、外力等に
より、水漏れ又は破損が起こり易い欠点がある。一方、
かしめ、ネジ止め法によるものは、機器ハウジングとフ
ィルターとの間での応力緩和や流体圧変動などにより水
、ゴミ等の機器内への浸入の危険がある。Since it is attached to the housing, it has the drawback of being susceptible to water leakage or damage due to water pressure, internal pressure, external force, etc. on the other hand,
If the caulking or screwing method is used, there is a risk that water, dirt, etc. may infiltrate into the device due to stress relaxation or fluid pressure fluctuation between the device housing and the filter.
「発明の構成」
（課題を解決するための手段）
本発明は上記したような従来のものにおける課題を解決
するように検討して創案されたものであって、以下の如
くである。"Structure of the Invention" (Means for Solving the Problems) The present invention was developed after consideration to solve the problems in the conventional products as described above, and is as follows.
ｆｉｌ 厚さ６０μｍ〜１０００μｍのポリテトラフ
ルオロエチレン（ＰＴＦＥ）多孔質膜単体の周側をプラ
スチックまたはゴムによる支持体中に一体成形したこと
を特徴とするフィルター
（２）厚さ５μｍ〜２００μｍのポリテトラフルオロエ
チレン（ＰＴＦＥ）多孔質膜と通気性を有する織物、不
織布材との積層品周側を射出成形時にプラスチックまた
はゴムによる支持体中に一体成形したことを特徴とする
フィルター。fil A filter characterized in that the peripheral side of a polytetrafluoroethylene (PTFE) porous membrane having a thickness of 60 μm to 1000 μm is integrally molded into a plastic or rubber support (2) Polytetrafluoroethylene (PTFE) having a thickness of 5 μm to 200 μm A filter characterized in that the peripheral side of a laminate of a porous fluoroethylene (PTFE) membrane and an air-permeable woven or nonwoven material is integrally molded into a plastic or rubber support during injection molding.
（３）ポリテトラフルオロエチレン多孔質膜、あるいは
これと通気性を有する織物、不織布との積層品の周側を
プラスチック、ゴムによる支持材の射出成形に当たって
該支持材中に位置せしめ、溶融したプラスチック、ゴム
樹脂を前記ポリテトラフルオロエチレン多孔質膜とが絡
みあって溶着組織あるいは該多孔質組織と織物または不
織布材の組織中に進入凝結させ、一体成形することを特
徴とするフィルターの支持成形法。(3) The peripheral side of a polytetrafluoroethylene porous membrane, or a laminate of this and a breathable fabric or nonwoven fabric, is placed in a support material made of plastic or rubber during injection molding of the support material, and the melted plastic is A support molding method for a filter, characterized in that the rubber resin is entangled with the polytetrafluoroethylene porous membrane and enters and condenses into the welded structure or the structure of the porous structure and the woven or nonwoven material, and is integrally molded. .
（作用）
本発明において採用するポリテトラフルオロエチレン多
孔質膜は一般的に気孔率が３０〜９５％好ましくは４５
〜９０％で、最大孔径が０．０５〜２０μｍ、好ましく
は１μｍであり、厚さは該多孔質膜が単体として用いら
れる場合においては６０〜１０００μｍである。即ち膜
厚が６０μｍ以下のものはフィルターの強度上不安定と
なり、又打ち抜いた場合の取扱いが困難となる。一方厚
さが１０００μｍを超えるものは通気性を充分に５手
得難い傾向があり、好ましくは１００〜５００μｍであ
る。(Function) The polytetrafluoroethylene porous membrane employed in the present invention generally has a porosity of 30 to 95%, preferably 45%.
~90%, the maximum pore size is 0.05-20 μm, preferably 1 μm, and the thickness is 60-1000 μm when the porous membrane is used as a single body. That is, if the film thickness is less than 60 μm, the strength of the filter will be unstable, and it will be difficult to handle when punched out. On the other hand, if the thickness exceeds 1000 μm, it tends to be difficult to obtain sufficient air permeability, and the thickness is preferably 100 to 500 μm.
前記ポリテトラフルオロエチレン多孔質膜として通気性
を確保するため織物や不織布を積層し強度上あるいは取
扱い上の腰を得るようにする場合においては５〜２００
μｍ程度とすることが好ましく、このように薄層材とす
ることにより好ましい通気性を得しめる。In the case where the polytetrafluoroethylene porous membrane is laminated with woven or nonwoven fabric to ensure breathability and to obtain strength or stiffness in handling, the polytetrafluoroethylene porous membrane may have a
It is preferable that the thickness is on the order of μm, and preferable air permeability can be obtained by forming the thin layer material in this way.
支持体は機器を形成するためのケースまたはハウジング
自体でよいことは当然であるが、又枠状体などとして一
旦別体に成形したものをケースまたはハウジングに取付
けるものでもよい。このような支持体を成形するだめの
プラスチック樹脂は一般に射出成形可能な樹脂すべてが
対象になる。It goes without saying that the support may be the case or housing itself for forming the device, but it may also be a frame-like body that is formed separately and then attached to the case or housing. In general, all injection moldable plastic resins are used for molding such supports.
これらの樹脂は、例えば、用途により耐熱性を重点に選
ぶならば、ＡＢＳ、ＰＢＴ、ナイロン、ＰＥＴ、ＰＰＳ
、、ＰＥＥＫ、あるいはフッ素樹脂系のＦＥＰ、ＰＦＡ
などがある。These resins include, for example, ABS, PBT, nylon, PET, and PPS if heat resistance is selected depending on the application.
,, PEEK, or fluororesin FEP, PFA
and so on.
耐熱性を重視した場合はポリテトラフルオロエチレン多
孔質膜に対する積層材としてはポリテトラフルオロエチ
レン単体の織布または不織布を採用すべきである。又こ
のようにポリテトラフルオロエチレン多孔質膜と、織物
、不織布材との積層品を採用する場合は、多孔質膜及び
織物、不織布の軟化点より低い軟化点を持つ成形用樹脂
を使用することが必要である。また、本発明において支
持体に使用できるゴム材料では、イソプレンゴム、クロ
ロブレンゴム、エチレンプロピレンゴム、ニトリルブタ
ジェンゴム等がある。特にプラスチック、ゴム材料に限
定はないが、要求される機器ハウジングの材質のうち、
射出成形可能なプラスチックゴム材料は殆どが使用可能
である。If heat resistance is important, a woven or nonwoven fabric made of polytetrafluoroethylene alone should be used as the laminated material for the polytetrafluoroethylene porous membrane. In addition, when using a laminated product of a porous polytetrafluoroethylene membrane and a woven or nonwoven material, use a molding resin that has a softening point lower than the softening point of the porous membrane, woven fabric, or nonwoven fabric. is necessary. Rubber materials that can be used for the support in the present invention include isoprene rubber, chloroprene rubber, ethylene propylene rubber, and nitrile butadiene rubber. There are no particular limitations on plastic or rubber materials, but among the required materials for equipment housings,
Most injection moldable plastic rubber materials can be used.
前記のような支持体の射出成形に当たって前記したポリ
テトラフルオロエチレン多孔質膜あるいはこれに織布や
不織布を併用した積層材を金型内に七ソトシ、その周側
に溶融したプラスチックまたはゴムを浸透凝結させるご
とによりプラスチックまたはゴムが多孔質膜または多孔
質膜と積層材の組織に対し表裏からしかも充分に進入し
アンカーとして的確な結合関係を形成する。For injection molding of the support as described above, the polytetrafluoroethylene porous membrane described above or a laminated material made of this in combination with woven fabric or non-woven fabric is placed in a mold for seven minutes, and molten plastic or rubber is infiltrated around the circumference thereof. Each time it solidifies, the plastic or rubber sufficiently enters the structure of the porous membrane or the porous membrane and the laminated material from the front and back, forming a precise bonding relationship as an anchor.
この状態は多孔質膜単体の場合は第１図に示すように多
孔質膜Ｊの表裏および端面の何れからも支持材２を形成
するプラスチックまたばゴムが浸透し、相互に連結した
アンカー３状態となって凝結する。積層材の場合は第２
図に示すように織物または不織布である積層材５に対し
ても前記同様な浸透凝結によるアンカー３が形成される
。In the case of a single porous membrane, as shown in FIG. It becomes condensed. In the case of laminated materials, the second
As shown in the figure, an anchor 3 similar to that described above is formed by penetrating and condensing on a laminated material 5 made of a woven or nonwoven fabric.
濾過作用をなす部分が比較的小さいよ・うな場合あるい
は射出成形樹脂液の流動性がよい場合においては前記し
たような射出成形時の浸透で多孔組織部が閉塞され、少
なくとも濾過作用面積を的確に得難い場合には第３図に
示すように通気部の周側に多孔質組織を閉塞した浸透阻
止部４を形成したものとして準備し、このものに対し上
記同様射出成形することにより浸透阻止部４で射出成形
液状物の流動を阻止し、的確な通気濾過面積をもった製
品として得しめる。In cases where the area that performs the filtration action is relatively small or when the fluidity of the injection molded resin liquid is good, the porous structure is blocked by the penetration during injection molding as described above, and at least the filtration action area can be accurately controlled. If this is difficult to obtain, as shown in FIG. 3, a permeation prevention part 4 formed by closing a porous tissue is prepared on the circumferential side of the ventilation part, and the permeation prevention part 4 is formed by injection molding in the same manner as described above. This prevents the flow of the injection molded liquid material, resulting in a product with a precise ventilation and filtration area.
上記のような浸透阻止部４は大きい濾過通気域を形成す
る場合においても同様に採用することができ、それによ
って整然たるフィルター作用を得しめる。The permeation prevention part 4 as described above can be similarly employed when forming a large filtration ventilation area, thereby achieving an orderly filtering effect.
（実施例）
本発明によるものの具体的な実施例について説明すると
以下の如くである。(Example) Specific examples of the present invention will be described below.
実施例１゜
気孔率８０％、最大孔径が２μｍで厚さが３００μｍの
延伸多孔質ポリテトラフルオロエチレン膜を用い、これ
をフレーム材であるＡＢＳ樹脂による支持体の開口部に
周側部１．Ｏｍ、ｍを埋装した状態の製品を得た。Example 1 A stretched porous polytetrafluoroethylene membrane with a porosity of 80%, a maximum pore diameter of 2 μm, and a thickness of 300 μm was used, and the peripheral side portion 1. A product in which Om and m were embedded was obtained.
射出成形に当たって金型を６０°りこ加熱した条件下に
実施し、冷却凝結から脱径して自動車用部品用の酸素セ
ンサ保護フィルターを得た。Injection molding was carried out under the condition that the mold was heated to 60 degrees, and the diameter was removed from cooling and condensation to obtain an oxygen sensor protection filter for automobile parts.
このものを±０．４ｋｇ／ｃＪの圧力変動条件下で使用
し、５００時間のｍ、続使用によっても損傷は全く認め
られなかったが、比較例として同じ多孔質ポリテトラフ
ルオロエチレン膜を接着液による片側熱融着を用いて上
記同様に試験した結果は、１００時間の使用によってフ
ィルターたる膜材の剥離が発生し、それ以上利用できな
いものであつ９−斥
た。This material was used under pressure fluctuation conditions of ±0.4 kg/cJ, and no damage was observed even after continued use for 500 hours.As a comparative example, the same porous polytetrafluoroethylene film was The results of the same test as above using one-sided heat fusion bonding were that the membrane material serving as a filter peeled off after 100 hours of use and could no longer be used.
実施例２゜
気孔率８５％、最大孔径が０．５μｍで厚さが５０μｍ
の延伸多孔質ボリテ１ラフルオロエチレン膜とＰＦＡに
よる厚さ３．２ｍｍのネソＩ・との積層材を用い、これ
をフレーム材であるＦＥＰ樹脂による支持体の開口部に
周側部Ｑ、５ｍｍを埋装した状態の製品を得た。Example 2゜Porosity 85%, maximum pore diameter 0.5 μm, thickness 50 μm
Using a laminated material of stretched porous Bolite 1 lafluoroethylene membrane and Neso I with a thickness of 3.2 mm made of PFA, this was attached to the opening of the support made of FEP resin, which is a frame material, with a circumferential side part Q of 5 mm. A product was obtained in which the particles were embedded.
射出成形に当たって金型を２２０ ’Ｃに加熱した条件
下に実施し、冷却凝結してから脱径して耐薬品性医療用
フィルターを得た。Injection molding was carried out under the condition that the mold was heated to 220'C, and after cooling and condensation, the diameter was removed to obtain a chemical-resistant medical filter.
実施例３゜
気孔率６０％、最大孔径が１．０μｍで厚さが５００μ
ｍの延伸多孔質ポリテトラフルオロエチレン膜を用い、
これをフレーム材であるＰＥＥＫによる支持体の開口部
に周側部０．５ｍｍを埋装した状態の製品を得た。Example 3゜Porosity 60%, maximum pore diameter 1.0μm, thickness 500μm
Using a stretched porous polytetrafluoroethylene membrane of
A product was obtained in which a circumferential portion of 0.5 mm was embedded in the opening of a support made of PEEK as a frame material.
射出成形に当たって金型を１７０ ’Ｃに加熱した条件
下に実施し、冷却凝結してから脱径して自動車部品用の
酸素セン１す保護フィルターをＩｊた。Injection molding was carried out under conditions in which the mold was heated to 170'C, and after cooling and condensation, the diameter was removed to obtain an oxygen sensor protection filter for automobile parts.
実施例４゜
気孔率４５％、最大孔径が０．５μｍで厚さが８０μｍ
の延伸多孔質ポリテトラフルオロエチレン膜を用い、こ
れをフレーム材であるＰＢＴによる支持体の開口部に周
側部０．５ｍｍを埋装した状態の製品を得た。Example 4゜Porosity: 45%, maximum pore diameter: 0.5 μm, thickness: 80 μm
A product was obtained in which the stretched porous polytetrafluoroethylene membrane was embedded in the opening of a support made of PBT, which is a frame material, to a circumferential side of 0.5 mm.
射出成形に当たって金型を７０℃に加熱した条件下に実
施し、冷却凝結してから脱径して自動車の油圧用フィル
ターを得た。Injection molding was carried out under conditions in which the mold was heated to 70°C, and after cooling and condensation, the diameter was removed to obtain an automobile hydraulic filter.
これらの実施例２〜４のものを±５ ｋｇ ／ ｃＪの
圧力変動条件下で使用し、実施例１におけると同様に５
００時間ｍ続使用によっても損傷は全く認められなかっ
た。These Examples 2 to 4 were used under pressure fluctuation conditions of ±5 kg/cJ, and 5 kg/cJ were used in the same manner as in Example 1.
No damage was observed even after continuous use for 00 hours.
「発明の効果」
以上説明したような本発明によるときは延伸多孔質ポリ
テトラフルオロエチレン膜の精度の高い気孔組織による
的確な濾過機能を具備したフィルターの周側を強固且つ
安定に機器ハウジングないしケースあるいは枠体などで
ある支持部体に数句けた製品を提供し、その耐用性を充
分に高め、圧４゜
力変動条件下においても有効な濾過ないし保護作用を得
しめることができ、しかもその制作を簡易化して支持部
体の射出成形のみで直ちに目的の製品を得ることができ
るなどの効果を有しており、工業的にその効果の大きい
発明である。"Effects of the Invention" According to the present invention as explained above, the peripheral side of the filter, which has an accurate filtration function due to the highly precise pore structure of the stretched porous polytetrafluoroethylene membrane, can be firmly and stably made into an equipment housing or case. Alternatively, it is possible to provide a product with a support body such as a frame that has several dimensions, which can sufficiently increase its durability and provide effective filtration or protection even under pressure fluctuations of 4°. This invention has the effect of simplifying production and allowing the desired product to be obtained immediately by simply injection molding the support member, and is an industrially highly effective invention.
図面は本発明の技術的内容を示すものであって第１図は
本発明によるフィルターの１例についての断面図、第２
図はその別の例についての同様な断面図、第３図は更に
別の実施形態についての平面図と断面図を併せて示した
説明図である。
然してごれらの図面において、１はポリテトラフルオロ
エチレン多孔質１模、２はプラスチックまたはゴムによ
る支持材、３はそのアンカー、４は浸透阻止部、５は織
物または不織布である積層材を示すものである。The drawings show the technical contents of the present invention, and FIG. 1 is a sectional view of one example of a filter according to the present invention, and FIG.
The figure is a similar cross-sectional view of another example, and FIG. 3 is an explanatory diagram showing both a plan view and a cross-sectional view of still another embodiment. In the drawings of Gore et al., 1 indicates a porous polytetrafluoroethylene model, 2 indicates a supporting material made of plastic or rubber, 3 indicates its anchor, 4 indicates a permeation prevention part, and 5 indicates a laminated material that is a woven or nonwoven fabric. It is something.
Claims (3)
ロエチレン（ＰＴＦＥ）多孔質膜単体の周側をプラスチ
ックまたはゴムによる支持体中に一体成形したことを特
徴とするフィルター。(1) A filter characterized in that the peripheral side of a polytetrafluoroethylene (PTFE) porous membrane having a thickness of 60 μm to 1000 μm is integrally molded into a support made of plastic or rubber.
チレン（ＰＴＦＥ）多孔質膜と通気性を有する織物、不
織布材との積層品周側を射出成形時にプラスチックまた
はゴムによる支持体中に一体成形したことを特徴とする
フィルター。(2) The circumferential side of a laminate of a polytetrafluoroethylene (PTFE) porous membrane with a thickness of 5 μm to 200 μm and a breathable woven or nonwoven material is integrally molded into a plastic or rubber support during injection molding. A filter featuring.
これと通気性を有する織物、不織布との積層品の周側を
プラスチック、ゴムによる支持材の射出成形に当たって
該支持材中に位置せしめ、溶融したプラスチック、ゴム
樹脂を前記ポリテトラフルオロエチレン多孔質膜とが絡
みあって溶着組織あるいは該多孔質組織と織物または不
織布材の組織中に進入凝結させ、一体成形することを特
徴とするフィルターの支持成形法。(3) The peripheral side of a polytetrafluoroethylene porous membrane, or a laminate of this and a breathable fabric or nonwoven fabric, is placed in a support material made of plastic or rubber during injection molding of the support material, and the melted plastic is A support molding method for a filter, characterized in that the rubber resin is entangled with the polytetrafluoroethylene porous membrane and enters and condenses into the welded structure or the structure of the porous structure and the woven or nonwoven material, and is integrally molded. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2148552A JP3062951B2 (en) | 1990-06-08 | 1990-06-08 | Filter and molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2148552A JP3062951B2 (en) | 1990-06-08 | 1990-06-08 | Filter and molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0445812A true JPH0445812A (en) | 1992-02-14 |
| JP3062951B2 JP3062951B2 (en) | 2000-07-12 |
Family
ID=15455315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2148552A Expired - Fee Related JP3062951B2 (en) | 1990-06-08 | 1990-06-08 | Filter and molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3062951B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491725U (en) * | 1990-12-25 | 1992-08-10 | ||
| JP2000326527A (en) * | 1999-05-24 | 2000-11-28 | Nitto Denko Corp | Ink cartridge |
| JP2005177641A (en) * | 2003-12-19 | 2005-07-07 | Nitto Denko Corp | Air filter unit, its manufacturing method and its assembly |
| JP2008113037A (en) * | 2008-01-28 | 2008-05-15 | Nitto Denko Corp | Ventilative housing |
| JP2008137009A (en) * | 2008-01-15 | 2008-06-19 | Nitto Denko Corp | Air filter unit and its manufacturing method, and air filter unit assembly |
| JP2008284510A (en) * | 2007-05-21 | 2008-11-27 | Nitto Denko Corp | Filter unit and manufacturing method thereof |
| JP2009066087A (en) * | 2007-09-11 | 2009-04-02 | Jms Co Ltd | Air permeable structure and method of forming air permeable structure |
| JP2009136863A (en) * | 2007-11-14 | 2009-06-25 | Nitto Denko Corp | Filter member, its manufacturing method and filter unit |
| US7837756B2 (en) | 2007-04-05 | 2010-11-23 | Aaf-Mcquay Inc. | Filter with ePTFE and method of forming |
-
1990
- 1990-06-08 JP JP2148552A patent/JP3062951B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491725U (en) * | 1990-12-25 | 1992-08-10 | ||
| JP2000326527A (en) * | 1999-05-24 | 2000-11-28 | Nitto Denko Corp | Ink cartridge |
| JP2005177641A (en) * | 2003-12-19 | 2005-07-07 | Nitto Denko Corp | Air filter unit, its manufacturing method and its assembly |
| US7837756B2 (en) | 2007-04-05 | 2010-11-23 | Aaf-Mcquay Inc. | Filter with ePTFE and method of forming |
| US8152889B2 (en) | 2007-04-05 | 2012-04-10 | Aaf-Mcquay Inc. | Filter with EPTFE and method of forming |
| JP2008284510A (en) * | 2007-05-21 | 2008-11-27 | Nitto Denko Corp | Filter unit and manufacturing method thereof |
| JP2009066087A (en) * | 2007-09-11 | 2009-04-02 | Jms Co Ltd | Air permeable structure and method of forming air permeable structure |
| JP2009136863A (en) * | 2007-11-14 | 2009-06-25 | Nitto Denko Corp | Filter member, its manufacturing method and filter unit |
| JP2008137009A (en) * | 2008-01-15 | 2008-06-19 | Nitto Denko Corp | Air filter unit and its manufacturing method, and air filter unit assembly |
| JP2008113037A (en) * | 2008-01-28 | 2008-05-15 | Nitto Denko Corp | Ventilative housing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3062951B2 (en) | 2000-07-12 |
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