JPH0835194A - Production of inorganic fiber porous body - Google Patents
Production of inorganic fiber porous bodyInfo
- Publication number
- JPH0835194A JPH0835194A JP19102294A JP19102294A JPH0835194A JP H0835194 A JPH0835194 A JP H0835194A JP 19102294 A JP19102294 A JP 19102294A JP 19102294 A JP19102294 A JP 19102294A JP H0835194 A JPH0835194 A JP H0835194A
- Authority
- JP
- Japan
- Prior art keywords
- porous body
- fiber
- inorganic fiber
- inorganic
- fibers
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00336—Materials with a smooth surface, e.g. obtained by using glass-surfaced moulds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、無機繊維多孔質体の製
造方法に係り、更に詳しくは繊維長１０ｍｍ以上の無機
繊維を用い目付け量の高い無機繊維多孔質体を抄造法で
製造する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an inorganic fiber porous body, more specifically a method for producing an inorganic fiber porous body having a high basis weight using inorganic fibers having a fiber length of 10 mm or more by a papermaking method. It is about.
【０００２】[0002]
【従来の技術】無機繊維を用い抄造法で多孔質体を製造
する場合、無機繊維は表面が疎水性であるため、水中で
の分散性やスラリーの流動性が悪いことから、中性での
抄造法では地合が良好で目付け斑の小さい無機繊維多孔
質体を製造することが困難とされていた。そのため従
来、無機繊維を用いて抄造するには、硫酸酸性（ｐＨ
３．２以下）で行うのが一般的であった。しかしなが
ら、硫酸酸性での抄造は、作業の安全性や装置の腐食性
などに問題点があった。2. Description of the Related Art When a porous material is produced by a paper-making method using inorganic fibers, the surface of the inorganic fibers is hydrophobic, so that the dispersibility in water and the fluidity of the slurry are poor. It has been considered difficult to produce an inorganic fiber porous body having a good texture and a small basis weight by the papermaking method. Therefore, conventionally, to make paper using inorganic fiber, sulfuric acid acidity (pH
It was general to carry out in 3.2 or less). However, papermaking using sulfuric acid acidity has problems in work safety and device corrosivity.
【０００３】そこで、中性での抄造法により無機繊維多
孔質体を良好に得るために、界面活性剤や高分子助剤な
どの分散剤を用いる方法が、特開昭６２−２１８９７〜
９号公報、特開昭６３−１２０１９９号公報に開示され
ている。しかしながら、これらの方法で目付けの大きい
（例えば目付け２ｋｇ／ｍ2 以上の）無機繊維多孔質体
を製造するには、スラリー中の無機繊維の濃度を例えば
０．５重量％以上の高濃度に上げることが望ましいが、
その場合はスラリーの流動性が低下し抄造品の目付け斑
が大きくなるという問題点がある。また、目付け斑は繊
維長が長くなるほど顕著に現れる。Therefore, a method using a dispersant such as a surfactant or a polymer auxiliary in order to favorably obtain an inorganic fiber porous material by a neutral papermaking method is disclosed in JP-A-62-21897.
No. 9 and Japanese Patent Laid-Open No. 63-120199. However, in order to produce a porous inorganic fiber body having a large basis weight (for example, a basis weight of 2 kg / m 2 or more) by these methods, the concentration of the inorganic fiber in the slurry is increased to a high concentration of, for example, 0.5% by weight or more. Desirable, but
In that case, there is a problem that the fluidity of the slurry is lowered and the basis weight of the papermaking product becomes large. Further, the fabric weight is more remarkable as the fiber length is longer.
【０００４】即ち、上記公報に開示された方法に従った
としても、繊維長１０ｍｍ以上の無機繊維を高濃度で分
散したスラリーを用いた抄造法により、目付けの大きい
且つ目付け斑のない無機繊維多孔質体を得るのは極めて
困難とされていた。That is, even if the method disclosed in the above-mentioned publication is used, the inorganic fiber porosity having a large basis weight and no unevenness in the basis weight is obtained by a papermaking method using a slurry in which inorganic fibers having a fiber length of 10 mm or more are dispersed at a high concentration. It was considered extremely difficult to obtain a body.
【０００５】そこで、抄造法により目付けの大きい無機
繊維多孔質体を得る方法として、繊維濃度の低いスラリ
ーを大量に用いる方法、或いは高分子助剤の添加量を増
してスラリーの粘度を上げる方法などが考えられるが、
前者は装置が巨大化し、後者は高分子助剤が残存すると
いう問題点があり、更に両者とも抄造時の濾水時間が長
くなり、生産効率が悪いという問題点があった。Therefore, as a method for obtaining an inorganic fiber porous body having a large basis weight by a papermaking method, a method of using a large amount of a slurry having a low fiber concentration or a method of increasing the viscosity of the slurry by increasing the addition amount of a polymer auxiliary agent, etc. Is possible,
The former has a problem that the apparatus becomes huge, and the latter has a problem that the polymer auxiliary agent remains, and both of them have a problem that the draining time at the time of papermaking becomes long and the production efficiency is poor.
【０００６】また、目付けの大きい無機繊維多孔質体を
得る方法としては、地合の良好な低目付けの抄造品を積
層する方法が考えられる。しかし、この方法で得られる
多孔質体は積層界面が強度欠陥となり易いという問題点
がある。そこで、かかる強度欠陥をなくす方法として、
ニードルパンチを施すことが考えられるが、その場合に
はニードルパンチによって繊維が切断され、得られる多
孔質体の強度が低下することがあり、また製造工程も煩
雑になるという問題点がある。Further, as a method for obtaining a porous inorganic fiber material having a large basis weight, a method of laminating paper products having a low basis weight and having a good texture can be considered. However, the porous body obtained by this method has a problem that the laminated interface is apt to cause strength defects. Therefore, as a method of eliminating such strength defects,
Needle punching may be performed, but in that case, there is a problem in that the fibers may be cut by the needle punching, the strength of the obtained porous body may decrease, and the manufacturing process becomes complicated.
【０００７】[0007]
【発明が解決しようとする課題】本発明者らは上述の事
情に鑑み鋭意研究した結果、スラリー中にパルプを添加
し分散せしめることにより、無機繊維の分散性とスラリ
ーの流動性とが良好に保持されることを見出し、本発明
を完成したものであって、本発明の目的は、繊維長１０
ｍｍ以上の無機繊維を用いて、目付けが２ｋｇ／ｍ2 以
上で且つ目付け斑がなく、また地合が良好で好ましい強
度と表面平滑性を有する無機繊維多孔質体を抄造法によ
り容易に製造する方法を提供するにある。DISCLOSURE OF THE INVENTION As a result of intensive studies made by the present inventors in view of the above-mentioned circumstances, the addition of pulp into a slurry to disperse the same improves the dispersibility of inorganic fibers and the fluidity of the slurry. The present invention was found to be retained and the present invention has been completed.
Using an inorganic fiber of mm or more, it is possible to easily manufacture an inorganic fiber porous body having a basis weight of 2 kg / m 2 or more, no basis weight unevenness, good texture, preferable strength and surface smoothness by a papermaking method. There is a way to provide.
【０００８】[0008]
【課題を解決するための手段】本発明の目的は、繊維長
１０〜１００ｍｍの無機繊維を繊維濃度０．５重量％以
上で分散した水系スラリーとなし抄造法により目付け２
ｋｇ／ｍ2 以上の無機繊維多孔質体を製造するにおい
て、前記水系スラリーにパルプを前記無機繊維に対し５
〜２５重量％の割合で添加することを特徴とする無機繊
維多孔質体の製造方法によって達成される。An object of the present invention is to provide an aqueous slurry in which inorganic fibers having a fiber length of 10 to 100 mm are dispersed at a fiber concentration of 0.5% by weight or more and a basis weight by a non-papermaking method.
In the production of the inorganic fiber porous body of kg / m 2 or more, pulp is added to the water-based slurry in an amount of 5 to the inorganic fiber.
It is achieved by a method for producing an inorganic fiber porous body, which is characterized in that it is added in a proportion of ˜25 wt%.
【０００９】本発明に用いる無機繊維の種類は特に限定
されるものではなく、使用目的に応じて適宜選択すれば
よい。かかる無機繊維としては、例えばガラス繊維，炭
素繊維，金属繊維，セラミック繊維などを挙げることが
できる。また本発明に用いられる無機繊維は、繊維長が
好ましくは１０〜１００ｍｍであり、単繊維の直径が好
ましくは５〜２０μｍのものである。繊維長が１００ｍ
ｍを超える繊維は水系スラリー中に均一に分散させるこ
とが困難であり、また繊維長が１０ｍｍ未満の繊維を用
いた場合は、得られる多孔質体の機械的強度が低くな
る。The kind of the inorganic fiber used in the present invention is not particularly limited and may be appropriately selected according to the purpose of use. Examples of such inorganic fibers include glass fibers, carbon fibers, metal fibers and ceramic fibers. The inorganic fiber used in the present invention preferably has a fiber length of 10 to 100 mm and a single fiber having a diameter of preferably 5 to 20 μm. Fiber length is 100m
It is difficult to uniformly disperse fibers exceeding m in the aqueous slurry, and when using fibers having a fiber length of less than 10 mm, the mechanical strength of the obtained porous body becomes low.
【００１０】本発明に用いる上記無機繊維には、複合材
料を製造する際に適宜行われている表面処理を施しても
よい。この様な処理としては、例えばガラス繊維に対す
るアミノシラン処理やエポキシシラン処理等のカップリ
ング剤処理を挙げることができる。また、無機繊維は分
散液中で十分開繊されることが望ましく、そのため分散
液中で脱糊剤処理してもよいが、予め焼却，精練，溶媒
洗浄等の適宜な方法で脱糊剤処理を施してもよい。The above-mentioned inorganic fibers used in the present invention may be subjected to a surface treatment which is appropriately carried out when producing a composite material. As such a treatment, for example, a coupling agent treatment such as aminosilane treatment or epoxysilane treatment for glass fiber can be mentioned. Further, it is desirable that the inorganic fibers are sufficiently opened in the dispersion liquid, and therefore, the desizing agent treatment may be performed in the dispersion liquid, but the desizing agent treatment may be performed in advance by an appropriate method such as incineration, scouring, or solvent washing. May be given.
【００１１】本発明に用いる上記無機繊維の添加量は、
分散に用いる水量に対して０．５重量％以上である。無
機繊維の濃度が０．５重量％未満では、高目付品を抄造
するには分散に用いる水量が大量となり、濾水時間が長
くなり生産効率が悪くなる。また、添加される無機繊維
が５重量％を超えると繊維は絡まり易くなり、繊維が十
分に分散しない。The addition amount of the above-mentioned inorganic fibers used in the present invention is
It is 0.5% by weight or more based on the amount of water used for dispersion. When the concentration of the inorganic fibers is less than 0.5% by weight, a large amount of water is used for dispersion for producing a high basis weight product, the drainage time becomes long, and the production efficiency deteriorates. If the added inorganic fibers exceed 5% by weight, the fibers tend to be entangled and the fibers are not sufficiently dispersed.
【００１２】本発明に用いるパルプは、植物原料を機械
的又は化学的に処理し、そのセルロース繊維をバラバラ
にして取り出したものであり、その種類は特に限定され
るものでなく、例えばＮＢＫＰ等の一般のパルプや、古
紙パルプなどを用いることができる。また、パルプの添
加量は無機繊維に対して５〜２５重量％、好ましくは１
０〜２０重量％である。パルプ添加量の少ない場合に
は、スラリーの流動性が十分でなく、得られる多孔質体
の目付け斑が大きくなる。また、パルプを過剰に添加し
た場合は、得られる無機繊維多孔質体の強度が低下す
る。The pulp used in the present invention is obtained by mechanically or chemically treating a plant raw material and separating the cellulose fibers into pieces, and the kind thereof is not particularly limited, and examples thereof include NBKP and the like. General pulp, waste paper pulp and the like can be used. The amount of pulp added is 5 to 25% by weight, preferably 1
It is 0 to 20% by weight. When the amount of pulp added is small, the fluidity of the slurry is not sufficient and the resulting porous body has a large unit weight. Moreover, when pulp is excessively added, the strength of the obtained inorganic fiber porous body decreases.
【００１３】本発明において調整される水系スラリーに
は、ポリエチレンオキサイドやポリアクリルアミドなど
の水溶性高分子や界面活性剤等を、繊維の分散助剤とし
て加えてもよい。無機繊維多孔質体は、この様にして得
られた繊維分散液を用いて通常行われている抄造法に従
って製造することができる。A water-soluble polymer such as polyethylene oxide or polyacrylamide or a surfactant may be added to the aqueous slurry prepared in the present invention as a fiber dispersion aid. The inorganic fiber porous body can be produced by using the fiber dispersion thus obtained, according to a commonly used papermaking method.
【００１４】[0014]
【発明の効果】本発明の方法によれば、無機繊維と共に
少量のパルプを添加し均一に分散させたため、繊維長１
０ｍｍ以上の無機繊維を用いて多孔質体を抄造法で製造
するに際し、パルプが流動助剤として作用し、繊維の分
散性とスラリーの流動性とが良好に保持されるため目付
け斑を低減することができる。このため、良好なる地合
を有する目付け２ｋｇ／ｍ2 以上の無機繊維多孔質体
を、容易且つ効率よく得ることが可能となる。According to the method of the present invention, since a small amount of pulp is added together with the inorganic fibers and uniformly dispersed, a fiber length of 1 is obtained.
When a porous body is manufactured by a papermaking method using 0 mm or more of inorganic fibers, pulp acts as a flow aid, and the dispersibility of the fibers and the fluidity of the slurry are favorably maintained, thereby reducing the unevenness of weight. be able to. Therefore, it is possible to easily and efficiently obtain an inorganic fiber porous body having a basis weight of 2 kg / m 2 or more and having a good texture.
【００１５】また、本発明の方法によって得られる無機
繊維多孔質体は、気孔構造が極めて均一であるため、無
機繊維フィルターとして用いた場合、圧力損失が少な
く、良好なフィルター効果を奏するものであり、例えば
エアフィルター，バッテリーセパレーター，断熱材，吸
水材，吸音材などの用途に好適である。更に、かかる多
孔質体及び多孔質体に樹脂を含浸して得られる複合材料
は、強化繊維の分散性が高く、目付斑も小さいため優れ
た成形品強度及び表面平滑性を示す。また、多孔質体に
樹脂材料等を複合してなる複合材料は、その成形性、機
械的特性から住設用途等に好ましく用いることができ
る。The inorganic fiber porous material obtained by the method of the present invention has an extremely uniform pore structure, and therefore, when used as an inorganic fiber filter, has a small pressure loss and exhibits a good filter effect. It is suitable for applications such as air filters, battery separators, heat insulating materials, water absorbing materials, and sound absorbing materials. Further, such a porous material and a composite material obtained by impregnating the porous material with a resin have high dispersibility of reinforcing fibers and small unevenness of weight, and thus exhibit excellent molded product strength and surface smoothness. Further, a composite material obtained by combining a porous material with a resin material or the like can be preferably used for housing applications and the like because of its moldability and mechanical properties.
【００１６】[0016]
【実施例】以下、本発明をその実施例により更に詳しく
説明する。なお、その前に本明細書における各種評価法
について説明する。EXAMPLES The present invention will now be described in more detail with reference to its examples. Before that, various evaluation methods in the present specification will be described.
【００１７】〈地合〉目視により収束繊維や繊維の絡み
具合を観察した。 ×：収束繊維や繊維の絡みが確認された。 ○：収束繊維や繊維の絡みが確認されなかった。<Texture> The convergent fibers and the entanglement of the fibers were visually observed. X: Converging fibers and fiber entanglement were confirmed. ◯: No convergent fiber or fiber entanglement was confirmed.
【００１８】〈目付け斑〉得られた円板状の無機繊維多
孔質体を図１に示す如き形状に切断して１０分割し、各
々の切片の目付け量（ｋｇ／ｍ2 ）を測定した後、最大
目付け量をＷＭとし、最小目付け量をＷＬとし、平均目
付け量をＷＡとして、下記式に従い目付け斑（％）を計
算した。尚、図１中の長さの単位はｍｍである。 目付け斑（％）＝｛（ＷＭ−ＷＬ）／ＷＡ｝×１００<Unit weight> The obtained disc-shaped inorganic fiber porous material was cut into a shape as shown in FIG. 1 and divided into 10 parts, and the basis weight (kg / m 2 ) of each section was measured. The maximum basis weight is WM, the minimum basis weight is WL, the average basis weight is WA, and the basis weight (%) is calculated according to the following formula. The unit of length in FIG. 1 is mm. Unit weight (%) = {(WM-WL) / WA} × 100
【００１９】実施例１ 繊維径７μｍ、長さ１３ｍｍの炭素繊維チョップドスト
ランド３５０ｇとパルプ３５ｇ（炭素繊維に対し１０重
量％）をポリアクリルアミド系分散助剤の０．０２重量
％水溶液、２５ ｌ中に投入し、３分間撹拌して繊維を
均一に分散させ、常法に従い直径３００φの円筒形に抄
造したのち乾燥し、炭素繊維多孔質体を得た。得られた
炭素繊維多孔質体は、表面平滑性が良好であり、その結
果は表１に示す通りであった。Example 1 350 g of carbon fiber chopped strands having a fiber diameter of 7 μm and a length of 13 mm and 35 g of pulp (10% by weight based on carbon fibers) were added to 25 l of a 0.02% by weight aqueous solution of a polyacrylamide dispersion aid. The mixture was charged, stirred for 3 minutes to uniformly disperse the fibers, and the fibers were formed into a cylindrical shape having a diameter of 300φ by a conventional method and then dried to obtain a carbon fiber porous body. The obtained carbon fiber porous body had good surface smoothness, and the results are shown in Table 1.
【００２０】実施例２ 実施例１におけるパルプの投入量を３５ｇに代えて７０
ｇ（炭素繊維に対し２０重量％）にした以外は、実施例
１と同様にして炭素繊維多孔質体を得た。得られた炭素
繊維多孔質体の結果は、表１に示す通りであった。Example 2 The amount of pulp added in Example 1 was changed to 35 g and 70
A carbon fiber porous body was obtained in the same manner as in Example 1 except that the amount was changed to g (20% by weight based on the carbon fiber). The results of the obtained carbon fiber porous body are as shown in Table 1.
【００２１】比較例１ 実施例１で添加したパルプを添加しない以外は、実施例
１と同様にして炭素繊維多孔質体を得た。得られた炭素
繊維多孔質体の結果は、表１に示す通りであった。Comparative Example 1 A carbon fiber porous body was obtained in the same manner as in Example 1 except that the pulp added in Example 1 was not added. The results of the obtained carbon fiber porous body are as shown in Table 1.
【００２２】比較例２ 実施例１におけるパルプの投入量を３．５ｇ（炭素繊維
に対し１重量％）にした以外は、実施例１と同様にして
炭素繊維多孔質体を得た。得られた炭素繊維多孔質体の
結果は、表１に示す通りであった。Comparative Example 2 A carbon fiber porous body was obtained in the same manner as in Example 1 except that the amount of pulp added in Example 1 was 3.5 g (1% by weight based on carbon fiber). The results of the obtained carbon fiber porous body are as shown in Table 1.
【００２３】[0023]
【表１】 注）パルプ添加率（％）：パルプの無機繊維重量に対す
る投入割合。[Table 1] Note) Pulp addition rate (%): Proportion of pulp added to inorganic fiber weight.
【００２４】実施例３ 実施例１において用いた繊維長１３ｍｍの炭素繊維を代
えて繊維長２５ｍｍの炭素繊維を用いた以外は、実施例
１と同様にして炭素繊維多孔質体を得た。得られた炭素
繊維多孔質体の結果は、表２に示す通りであった。Example 3 A carbon fiber porous body was obtained in the same manner as in Example 1 except that the carbon fiber having a fiber length of 13 mm was used instead of the carbon fiber having a fiber length of 13 mm used in Example 1. The results of the obtained carbon fiber porous body were as shown in Table 2.
【００２５】比較例３ 実施例３で投入したパルプを投入しない以外は、実施例
３と同様にして炭素繊維多孔質体を得た。得られた炭素
繊維多孔質体の結果は、表２に示す通りであった。Comparative Example 3 A carbon fiber porous body was obtained in the same manner as in Example 3 except that the pulp added in Example 3 was not added. The results of the obtained carbon fiber porous body were as shown in Table 2.
【００２６】[0026]
【表２】 [Table 2]
【００２７】実施例４ 無機繊維として実施例１で用いた炭素繊維に代えて繊維
径１３μｍ、繊維長１３ｍｍのガラス繊維を用いた以外
は、実施例１と同様の抄造法によりガラス繊維多孔質体
を得た。得られたガラス繊維多孔質体の結果は、表３に
示す通りであった。Example 4 A glass fiber porous body was prepared by the same paper-making method as in Example 1 except that glass fibers having a fiber diameter of 13 μm and a fiber length of 13 mm were used as the inorganic fibers instead of the carbon fibers used in Example 1. Got The results of the obtained glass fiber porous body were as shown in Table 3.
【００２８】[0028]
【表３】 [Table 3]
【図面の簡単な説明】[Brief description of drawings]
【図１】目付け斑を求めるための１０分割の方法を示す
平面図である。FIG. 1 is a plan view showing a 10-division method for obtaining a weighted spot.
Claims (1)
維濃度０．５重量％以上で分散した水系スラリーとなし
抄造法により目付２ｋｇ／ｍ2 以上の無機繊維多孔質体
を製造するにおいて、前記水系スラリーにパルプを前記
無機繊維に対し５〜２５重量％の割合で添加することを
特徴とする無機繊維多孔質体の製造方法。1. A method for producing an inorganic fiber porous body having a basis weight of 2 kg / m 2 or more by an aqueous slurry in which inorganic fibers having a fiber length of 10 to 100 mm are dispersed at a fiber concentration of 0.5% by weight or more and without a papermaking method, A method for producing an inorganic fiber porous body, characterized in that pulp is added to an aqueous slurry at a ratio of 5 to 25% by weight with respect to the inorganic fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19102294A JPH0835194A (en) | 1994-07-20 | 1994-07-20 | Production of inorganic fiber porous body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19102294A JPH0835194A (en) | 1994-07-20 | 1994-07-20 | Production of inorganic fiber porous body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0835194A true JPH0835194A (en) | 1996-02-06 |
Family
ID=16267595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19102294A Pending JPH0835194A (en) | 1994-07-20 | 1994-07-20 | Production of inorganic fiber porous body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0835194A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185334A (en) * | 1989-07-31 | 1993-02-09 | Schering Corporation | 2,2-disubstituted glycerol and glycerol-like compounds, compositions and methods of use |
| JP2014148449A (en) * | 2013-02-01 | 2014-08-21 | Mitsubishi Rayon Co Ltd | Porous electrode substrate precursor sheet, method for producing the same, porous electrode substrate, membrane-electrode assembly, and solid polymer type fuel cell |
-
1994
- 1994-07-20 JP JP19102294A patent/JPH0835194A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5449680A (en) * | 1988-02-05 | 1995-09-12 | Schering Corporation | 2,2 disubstituted glycerol and glycerol-like compounds, compositions and methods of use |
| US5185334A (en) * | 1989-07-31 | 1993-02-09 | Schering Corporation | 2,2-disubstituted glycerol and glycerol-like compounds, compositions and methods of use |
| JP2014148449A (en) * | 2013-02-01 | 2014-08-21 | Mitsubishi Rayon Co Ltd | Porous electrode substrate precursor sheet, method for producing the same, porous electrode substrate, membrane-electrode assembly, and solid polymer type fuel cell |
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