JPH01111770A - Ceramic material for extrusion molding - Google Patents
Ceramic material for extrusion moldingInfo
- Publication number
- JPH01111770A JPH01111770A JP62267235A JP26723587A JPH01111770A JP H01111770 A JPH01111770 A JP H01111770A JP 62267235 A JP62267235 A JP 62267235A JP 26723587 A JP26723587 A JP 26723587A JP H01111770 A JPH01111770 A JP H01111770A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- cellulose derivative
- fiber
- extrusion molding
- ceramic
- 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
- 238000001125 extrusion Methods 0.000 title claims abstract description 15
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 8
- 239000001913 cellulose Substances 0.000 claims abstract description 21
- 229920002678 cellulose Polymers 0.000 claims abstract description 21
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 abstract description 21
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 239000000376 reactant Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012776 electronic material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012374 esterification agent Substances 0.000 description 1
- 150000002148 esters Chemical group 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Producing Shaped Articles From Materials (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、押出し成形用セラミック材料、とくには電子
材料用セラミック成形体として有用な孔欠陥のない焼結
体を提供する押出し成形用セラミック材料に関するもの
である。Detailed Description of the Invention (Field of Industrial Application) The present invention provides a ceramic material for extrusion molding, which provides a sintered body free of hole defects useful as a ceramic molded body for electronic materials. It is related to.
（従来技術とその問題点）
従来のセラミック押出し成形体の製造方法は、セラミッ
ク主材を混合、仮焼、粉砕して非可塑性のセラミック粉
体とし、この粉体に可塑性を持たせるためのバインダー
、バインダーを溶解させるための水、および必要に応じ
可塑剤、潤滑剤などを添加し、混練して（ロールミル、
連続混練機等でちぎりながら混合する）はい土となし、
これを用いて押出し成形した後、焼成して素体とする方
法であるが、とくに高品質が要求される電子材料用セラ
ミックシートなどの素体を製造する場合には、はい土の
保水性、保形性を高め、少量で押出し成形に適した可塑
性を付与するために、バインダーとしてメトキシ基を有
するメチルセルロースなどの水溶性セルロース誘導体が
広く用いられている。しかし、このようなセルロース誘
導体を用いて押出し成形用材料を調製する場合、この水
分散液が１０％以上という高濃度で、硬いゼリー状のも
のとなるため、セルロース誘導体がセラミック粉体中に
均一に分散せず、この粉末が水和、膨潤したままの状態
で残ることが多かった。(Prior art and its problems) The conventional method for manufacturing ceramic extrusion molded bodies is to mix, calcinate, and crush ceramic main materials to produce non-plastic ceramic powder, and then add a binder to give plasticity to this powder. , water for dissolving the binder, and plasticizers, lubricants, etc. as necessary are added and kneaded (roll mill,
(Mix while tearing with a continuous kneader, etc.)
This is a method of extrusion molding using this material and then firing it to form an element body. However, when producing elements such as ceramic sheets for electronic materials that require particularly high quality, the water retention properties of the soil Water-soluble cellulose derivatives such as methylcellulose having a methoxy group are widely used as binders in order to improve shape retention and provide plasticity suitable for extrusion molding in small amounts. However, when preparing an extrusion molding material using such a cellulose derivative, the aqueous dispersion has a high concentration of 10% or more and becomes a hard jelly-like substance, so the cellulose derivative is uniformly dispersed in the ceramic powder. The powder was often left in a hydrated and swollen state.
この問題の解決のため、セルロース誘導体を水に溶解し
た後、セラミック粉体と充分に混練する方法が採られて
いる。しかしセルロース誘導体はもともと水に不溶の天
然セルロースを水に可溶にするためエーテルまたはエス
テル置換したものであり、置換反応がセルロース固体と
エーテル化またはエステル化剤との固体／液体間反応で
あるため、工業的規模の生産では反応が不均一となりや
すく、低置換度の部分では水に溶けにくくなって、これ
をセラミックの押出し成形に使用すると、焼結後の成形
体中に数−程度の空孔（ボア）を形成した。この空孔は
１０〜２０．程度の厚みの導電体層および絶ｇ層を焼結
基板上に印刷して回路を形成するＩＣ基板の調製には不
適であり、またコンデンサーなどのＦ、Ｂ！体用セラミ
ック焼結体においても、この空孔が耐電圧特性を低下さ
せることから、このようなの欠陥のない基板の開発が望
まれていた。In order to solve this problem, a method has been adopted in which the cellulose derivative is dissolved in water and then sufficiently kneaded with ceramic powder. However, cellulose derivatives are originally water-insoluble natural cellulose substituted with ether or ester to make it soluble in water, and the substitution reaction is a solid/liquid reaction between solid cellulose and an etherification or esterification agent. In industrial-scale production, the reaction tends to be non-uniform, and parts with a low degree of substitution become difficult to dissolve in water, and when used for extrusion molding of ceramics, several voids are created in the compact after sintering. A hole (boa) was formed. This hole is 10 to 20. It is unsuitable for the preparation of IC boards in which circuits are formed by printing a conductive layer and an absolute g layer with a certain thickness on a sintered board. Even in ceramic sintered bodies for use in ceramic bodies, since these pores reduce the withstand voltage characteristics, it has been desired to develop a substrate free of such defects.
（問題点を解決するための手段）
本発明は、この要求に基づいて鋭意検討した結果、添加
するセルロース誘導体バインダー中の水不溶解繊維状物
の量を一定値以下にすると、これらの問題点が解決でき
ることを見出し、完成されたものである。(Means for Solving the Problems) As a result of intensive studies based on this requirement, the present invention has discovered that these problems can be solved by reducing the amount of water-insoluble fibrous substances in the cellulose derivative binder to be added to a certain value or less. It was completed after discovering that it could solve the problem.
すなわち、本発明による押出し成形用セラミック材料は
、成形用バインダーとして含有するセルロース誘導体を
、その０．１重量％水溶液の２ｃｃ中に存在する８Ｉ！
ｍ以上２００ Ｉｓ以下の未溶解繊維が１．０００個以
下のものとしたことを要旨とするものである。That is, the ceramic material for extrusion molding according to the present invention contains a cellulose derivative as a molding binder in 2 cc of a 0.1% by weight aqueous solution of 8I!
The gist is that the number of undissolved fibers of m or more and 200 Is or less is 1,000 or less.
以下、本発明の詳細な説明すると、本発明において押出
し成形用のバインダーとして使用されるセルロース誘導
体には、メチルセルロース、ヒドロキシプロピルメチル
セルロース、ヒドロキシエチルメチルセルロース、ヒド
ロキシエチルセルロース、ヒドロキシプロピルセルロー
ス、ヒドロキシプロピルエチルセルロース、ヒドロキシ
エチルエチルセルロース、エチルセルロース、カルボキ
シメチルセルロースなどの水溶性セルロース誘導体が挙
げられる。The present invention will be described in detail below. Cellulose derivatives used as binders for extrusion molding in the present invention include methylcellulose, hydroxypropylmethylcellulose, hydroxyethylmethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylethylcellulose, hydroxyethyl Examples include water-soluble cellulose derivatives such as ethyl cellulose, ethyl cellulose, and carboxymethyl cellulose.
本発明は前述したように、このセルロース誘導体の０．
１重量％水溶液の２ｃｃ中に存在する、８−以上２００
．以下の未溶解繊維の量を、１ 、０００個以下の範囲
に止める点に特徴をもつものであるが、この未溶解繊維
の量範囲にするには１通常のセルロース誘導体の製造方
法において充分な量の反応薬品を用い、必要な溶媒を選
択使用するなど、均一で充分な反応が行なわれる条件を
採用することにより達成される。なお、この量が１ 、
０００個以上１０．０００個未満であってもセラミック
焼結体中のボア数の減少に多少の効果を有するが、本発
明が目的とする電子材料用のセラミック製品に供するに
は不良率を極めて小さくする必要があり、このため、に
本発明ではこれを１ 、０００個以下に止めることが必
須となる。また、この量は少なければ少ないほど望まし
いが、このようなバインダーを製造することは極めて廻
しく高価となるため、自ずから限界がある。As mentioned above, the present invention provides 0.0% of this cellulose derivative.
8-200 or more present in 2 cc of 1 wt% aqueous solution
．． The following feature is that the amount of undissolved fibers is kept within the range of 1,000 or less, but in order to keep the amount of undissolved fibers within this range, 1. This can be achieved by employing conditions that allow a uniform and sufficient reaction to occur, such as by using appropriate amounts of reaction chemicals and selectively using the necessary solvents. Note that this amount is 1,
Even if the number of holes is 000 or more and less than 10,000, it has some effect on reducing the number of bores in the ceramic sintered body, but the defect rate is too high for it to be used as a ceramic product for electronic materials, which is the object of the present invention. Therefore, in the present invention, it is essential to limit the number to 1,000 or less. Further, although it is desirable that this amount is as small as possible, it is extremely difficult and expensive to produce such a binder, so there is a limit to it.
一方、未溶解繊維の粒径が８ｔ！ｍ未満のときは、これ
から得られるセラミック焼結体中のボアの径も８ｔＩｍ
未満となるため、１０〜２０．程度の導電層および絶縁
層を焼結体に印刷するＩＣ基板、さらにはコンデンサー
などの誘電セラミック材料の耐電圧特性を損する恐れが
無く、他方この粒径が２００−以上のものは、通常のセ
ラミックの押出し成形において使用される目開き２００
−程度のスクリーンにより取り除かれるので問題にはな
らない。On the other hand, the particle size of undissolved fiber is 8t! When the diameter is less than 8tIm, the diameter of the bore in the ceramic sintered body obtained from this is also 8tIm.
Since it is less than 10 to 20. There is no risk of impairing the withstand voltage characteristics of dielectric ceramic materials such as IC substrates, capacitors, etc. where conductive and insulating layers are printed on sintered bodies, and on the other hand, particles with a particle size of 200 mm or more are suitable for use with ordinary ceramics. Aperture size 200 used in extrusion molding
This is not a problem because it can be removed by a screen of - degree.
なお、この未溶解繊維の測定方法は、まず水溶性セルロ
ース誘導体が０．１％濃度となるようにコールタ−カウ
ンター用電解質溶液ｌ５ＯＴＯＮ ｎ （日科機曲製、
商品名）に２０℃恒温槽内で溶解し、この溶液中に存在
する８声以上２００−以下の未溶解繊維数を、径４００
／Ｊｌｌのアパーチャーチューブを用いてコールタ−カ
ウンターＴＡＩＩ型（日科機間製、商品名）またはマル
チサイザー機により計数することにより行なうことがで
きる。The method for measuring undissolved fibers is to first prepare an electrolyte solution for Coulter Counter l5OTON n (manufactured by Nikka Kikoku Co., Ltd.) so that the water-soluble cellulose derivative has a concentration of 0.1%.
(trade name) in a 20℃ thermostatic bath, and the number of undissolved fibers with a diameter of 400 to 200 present in this solution is
This can be carried out by counting using a Coulter Counter Model TAII (manufactured by Nikikakima Co., Ltd., trade name) or a multisizer machine using an aperture tube of /Jll.
本発明による押出し成形用材料は、このセルロース誘導
体バインダーに、セラミック粉体、水、および必要に応
じ可塑剤、潤滑助剤などの添加剤を加えて混合使用され
るが、これに用いられるセラミック粉体にはアルミナ、
チタン酸バリウム、ＰＺＴ、ジルコニア、酸化亜鉛、窒
化ケイ素、炭化ケイ素など、およそすべてのセラミック
材料において、粒径０．１〜２０Ｉ１ｍ程度の任意の形
状の粉末として利用することができる。The extrusion molding material according to the present invention is used by mixing the cellulose derivative binder with ceramic powder, water, and additives such as plasticizers and lubricating aids as necessary. Alumina on the body,
Approximately all ceramic materials, such as barium titanate, PZT, zirconia, zinc oxide, silicon nitride, and silicon carbide, can be used as powder in any shape with a particle size of approximately 0.1 to 20I1m.
また、必要に応じて加えられる各種添加物としては、ポ
リエチレングリコール、グリセリン、プロピレングリコ
ール、エチレングリコール、１゜４−ブタンジオールな
どの可塑剤、およびワックス、ワックスエマルジョンな
どの潤滑助剤が挙げられる。Various additives that may be added as necessary include plasticizers such as polyethylene glycol, glycerin, propylene glycol, ethylene glycol, and 1°4-butanediol, and lubricating aids such as wax and wax emulsion.
これらの成分の混合は、あらかじめセルロース誘導体バ
インダーとセラミック粉体とを混合した後その他の成分
を加えてもよいし、またあらかじめセルロース誘導体バ
インダーを水と可塑剤に溶解した後セラミック粉体と混
合してもよく、いずれの場合も混合後のバインダーが充
分均一に分散するように混練した後、押出し成形しさえ
すれば、本発明の効果が阻害される恐れはない。These components may be mixed by mixing the cellulose derivative binder and the ceramic powder in advance and then adding other components, or by dissolving the cellulose derivative binder in water and a plasticizer and then mixing it with the ceramic powder. In either case, as long as the binder is kneaded so as to be sufficiently uniformly dispersed and then extruded, there is no risk that the effects of the present invention will be impaired.
以下、本発明の具体的態様を実施例および比較例により
説明するが、本発明はこの実施例に限定されるものでは
ない。Hereinafter, specific embodiments of the present invention will be explained using Examples and Comparative Examples, but the present invention is not limited to these Examples.
実施例１〜５．および比較例１〜２゜
別表に示す性状の各セルロース誘導体バインダーの６重
量部を、アルミナＬＳ−２００（口軽加工ｍ製）１００
重量部、タルク・ハイフィラー（松村産業曲製）４重量
部、グリセリン８重量部、水２０〜２２重量部と混合し
、アルミナセラミックシートとして押出し成形し、乾燥
焼結した。得られた成形体の断面を研磨し、顕微鏡によ
り１ｎ＋＋ａ径当りの数−以上のボアを計数して別表に
併記した。Examples 1-5. and Comparative Examples 1 to 2. 6 parts by weight of each cellulose derivative binder having the properties shown in the attached table was added to 100% of alumina LS-200 (manufactured by Kuchikaru Kogyo M).
parts by weight, 4 parts by weight of talc high filler (manufactured by Matsumura Sangyo Kyoku), 8 parts by weight of glycerin, and 20 to 22 parts by weight of water, extrusion molded into an alumina ceramic sheet, and dried and sintered. The cross section of the obtained molded body was polished, and the number of bores per 1n++a diameter was counted using a microscope, and the results were also recorded in the separate table.
これより、本発明によればセラミック成形体のボアを格
段に減らせることが判った。From this, it has been found that according to the present invention, the bore of the ceramic molded body can be significantly reduced.
（発明の効果）
本発明によれば、押出し成形用材料中に粒径８−以上の
未溶解繊維を含まないため、焼結体に数−前後の空孔が
形成されることがなく、ｆｔ子子材用用適したセラミッ
ク焼結成形体を得ることができる。(Effects of the Invention) According to the present invention, since the extrusion molding material does not contain undissolved fibers with a particle size of 8 or more, pores of about 8 or more are not formed in the sintered body, and ft. A ceramic sintered body suitable for use as a child material can be obtained.
Claims (1)
が、その０．１重量％水溶液の２ｃｃ中に存在する８μ
ｍ以上２００μｍ以下の未溶解繊維の量で１，０００個
以下のものである、ことを特徴とする押出し成形用セラ
ミック材料。1. The cellulose derivative contained as a molding binder is present in 2 cc of a 0.1% by weight aqueous solution of 8μ
1. A ceramic material for extrusion molding, characterized in that the amount of undissolved fibers with a size of from m to 200 μm is 1,000 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62267235A JP2502628B2 (en) | 1987-10-22 | 1987-10-22 | Ceramic material for extrusion molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62267235A JP2502628B2 (en) | 1987-10-22 | 1987-10-22 | Ceramic material for extrusion molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01111770A true JPH01111770A (en) | 1989-04-28 |
| JP2502628B2 JP2502628B2 (en) | 1996-05-29 |
Family
ID=17442012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62267235A Expired - Lifetime JP2502628B2 (en) | 1987-10-22 | 1987-10-22 | Ceramic material for extrusion molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2502628B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009061751A (en) * | 2007-09-10 | 2009-03-26 | Ngk Insulators Ltd | Method of manufacturing honeycomb structure |
| JP2012522666A (en) * | 2009-04-03 | 2012-09-27 | コーニング インコーポレイテッド | Manufacture of ceramics using rapidly hydratable cellulosic binders. |
| JP2012525321A (en) * | 2009-04-30 | 2012-10-22 | コーニング インコーポレイテッド | Selective binder for ultra-thin wall porous ceramic extrusion |
| WO2013119443A1 (en) * | 2012-02-10 | 2013-08-15 | Dow Global Technologies Llc | Composition for extrusion-molded ceramic bodies comprising a cellulose derivative of certain median particle length |
| JP2014510687A (en) * | 2010-11-08 | 2014-05-01 | ダウ グローバル テクノロジーズ エルエルシー | Composition for extruded bodies containing methylcellulose |
| US8865432B2 (en) | 2004-02-26 | 2014-10-21 | Shin-Etsu Chemical Co., Ltd. | Method for preparing cellulose derivatives having solubility improved |
| US10730956B2 (en) | 2015-01-08 | 2020-08-04 | Dow Global Technologies Llc | Process for producing a water-soluble cellulose derivative having a reduced content of water-insoluble particles |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5042829B2 (en) * | 2005-07-04 | 2012-10-03 | 電気化学工業株式会社 | Manufacturing method of ceramic sheet |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62105948A (en) * | 1985-10-31 | 1987-05-16 | 信越化学工業株式会社 | Manufacture of ceramic extrusion formed body and compositiontherefor |
-
1987
- 1987-10-22 JP JP62267235A patent/JP2502628B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62105948A (en) * | 1985-10-31 | 1987-05-16 | 信越化学工業株式会社 | Manufacture of ceramic extrusion formed body and compositiontherefor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8865432B2 (en) | 2004-02-26 | 2014-10-21 | Shin-Etsu Chemical Co., Ltd. | Method for preparing cellulose derivatives having solubility improved |
| JP2009061751A (en) * | 2007-09-10 | 2009-03-26 | Ngk Insulators Ltd | Method of manufacturing honeycomb structure |
| JP2012522666A (en) * | 2009-04-03 | 2012-09-27 | コーニング インコーポレイテッド | Manufacture of ceramics using rapidly hydratable cellulosic binders. |
| JP2012525321A (en) * | 2009-04-30 | 2012-10-22 | コーニング インコーポレイテッド | Selective binder for ultra-thin wall porous ceramic extrusion |
| JP2014510687A (en) * | 2010-11-08 | 2014-05-01 | ダウ グローバル テクノロジーズ エルエルシー | Composition for extruded bodies containing methylcellulose |
| US9353011B2 (en) | 2010-11-08 | 2016-05-31 | Dow Global Technologies Llc | Composition for extrusion-molded bodies comprising a methyl cellulose |
| WO2013119443A1 (en) * | 2012-02-10 | 2013-08-15 | Dow Global Technologies Llc | Composition for extrusion-molded ceramic bodies comprising a cellulose derivative of certain median particle length |
| CN104245627A (en) * | 2012-02-10 | 2014-12-24 | 陶氏环球技术有限责任公司 | Composition for extrusion-molded ceramic bodies comprising a cellulose derivative of certain median particle length |
| US10730956B2 (en) | 2015-01-08 | 2020-08-04 | Dow Global Technologies Llc | Process for producing a water-soluble cellulose derivative having a reduced content of water-insoluble particles |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2502628B2 (en) | 1996-05-29 |
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