JP2002302875A - Heat resistant mat, method for producing the same, and catalytic converter for purifying exhaust gas - Google Patents
Heat resistant mat, method for producing the same, and catalytic converter for purifying exhaust gasInfo
- Publication number
- JP2002302875A JP2002302875A JP2001103384A JP2001103384A JP2002302875A JP 2002302875 A JP2002302875 A JP 2002302875A JP 2001103384 A JP2001103384 A JP 2001103384A JP 2001103384 A JP2001103384 A JP 2001103384A JP 2002302875 A JP2002302875 A JP 2002302875A
- Authority
- JP
- Japan
- Prior art keywords
- organic binder
- mat
- heat
- resistant mat
- resistant
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 230000003197 catalytic effect Effects 0.000 title claims description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 64
- 239000000835 fiber Substances 0.000 claims abstract description 55
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000009477 glass transition Effects 0.000 claims abstract description 8
- 238000005979 thermal decomposition reaction Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 12
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 description 18
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 5
- 229910052863 mullite Inorganic materials 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 125000005395 methacrylic acid group Chemical group 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 101100325793 Arabidopsis thaliana BCA2 gene Proteins 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101000650817 Homo sapiens Semaphorin-4D Proteins 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 102100027744 Semaphorin-4D Human genes 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- -1 aluminum oxychloride Chemical compound 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、耐熱性マット及び
その製造方法ならびに排気ガス浄化用触媒コンバータに
関する。The present invention relates to a heat-resistant mat, a method for producing the same, and a catalytic converter for purifying exhaust gas.
【０００２】[0002]
【従来の技術】従来より、厚さ方向に圧縮されたアルミ
ナ質繊維マット中に熱分解によって消失する有機バイン
ダーが含有されて成る耐熱性マットが知られている（例
えば特許第３０２５４３３号公報など）。この耐熱性マ
ットは、アルミナ質繊維マットに有機バインダー液を含
浸させる第１工程、有機バインダー液が含浸されたアル
ミナ質繊維マットを厚さ方向に圧縮する第２工程、圧縮
されたアルミナ質繊維マットの厚さを維持したまま有機
バインダー液の媒体液を除去する第３工程を包含する方
法で製造される（同上）。そして、耐熱性マットは、排
気ガス浄化用触媒コンバータにおいてモノリス（触媒保
持体）と当該モノリスの外側を覆う金属性シェル（キャ
ン）との間に挿入配置されるモノリス保持材として優れ
ている（同上）。また、その他の分野における各種の耐
熱性パッキング材としても有用である。2. Description of the Related Art Hitherto, a heat-resistant mat in which an organic binder which disappears by thermal decomposition is contained in an alumina fiber mat compressed in a thickness direction has been known (for example, Japanese Patent No. 3025433). . The heat-resistant mat comprises a first step of impregnating the alumina fiber mat with an organic binder liquid, a second step of compressing the alumina fiber mat impregnated with the organic binder liquid in the thickness direction, and a step of compressing the compressed alumina fiber mat. Is produced by a method including a third step of removing the medium liquid of the organic binder liquid while maintaining the thickness (see above). The heat-resistant mat is excellent as a monolith holding material inserted and disposed between a monolith (catalyst holding body) and a metal shell (can) covering the outside of the monolith in the exhaust gas purifying catalytic converter. ). It is also useful as various heat-resistant packing materials in other fields.
【０００３】しかしながら、上記の耐熱性マットは、時
として、金属性シェル等の適用場所への装着が容易に行
なえない場合がある。また、上記の耐熱性マットの製造
方法には、有機バインダー液の媒体液を除去する工程で
有機バインダー液が除去装置に付着したり、付着した有
機バインダーが耐熱性マットを汚損するといった問題が
ある。[0003] However, the above-mentioned heat-resistant mat sometimes cannot be easily attached to an application place such as a metal shell. Further, the method for producing a heat-resistant mat described above has a problem that the organic binder liquid adheres to the removing device in the step of removing the medium liquid of the organic binder liquid, and the adhered organic binder stains the heat-resistant mat. .
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記実情に
鑑みなされたものであり、その目的は、適用場所に容易
に装着し得る様に改良された耐熱性マットを提供するこ
とにある。本発明の他の目的は、圧縮されたアルミナ質
繊維マットの厚さを維持したまま有機バインダー液の媒
体液を除去する工程を包含し、そして、当該有機バイン
ダー液の付着に伴う種々の問題を解決した、耐熱性マッ
トの製造方法を提供することにある。更に、本発明の他
の目的は、モノリス保持材として上記の改良された耐熱
性マットを使用して成る排気ガス浄化用触媒コンバータ
を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an improved heat resistant mat which can be easily mounted on an application place. Another object of the present invention includes a step of removing the medium liquid of the organic binder liquid while maintaining the thickness of the compressed alumina fiber mat, and solving various problems associated with the adhesion of the organic binder liquid. It is an object of the present invention to provide a method for manufacturing a heat-resistant mat which has been solved. It is a further object of the present invention to provide a catalytic converter for purifying exhaust gas using the improved heat-resistant mat as a monolith holding material.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明の第１
の要旨は、厚さ方向に圧縮されたアルミナ質繊維マット
中に熱分解によって消失する有機バインダーが含有され
て成る耐熱性マットであって、上記の有機バインダーと
して、ガラス転移点が−２２〜１００℃の有機バインダ
ーを使用して成ることを特徴とする耐熱性マットに存す
る。That is, the first aspect of the present invention is as follows.
The gist of the present invention is a heat-resistant mat in which an organic binder which disappears by thermal decomposition is contained in an alumina fiber mat compressed in a thickness direction, wherein the organic binder has a glass transition point of −22 to 100. A heat-resistant mat characterized by using an organic binder at ℃.
【０００６】そして、本発明の第２の要旨は、アルミナ
質繊維マットに有機バインダー液を含浸させる第１工
程、有機バインダー液が含浸されたアルミナ質繊維マッ
トを厚さ方向に圧縮する第２工程、圧縮されたアルミナ
質繊維マットの厚さを維持したまま有機バインダー液の
媒体液を除去する第３工程を包含する耐熱性マットの製
造方法において、上記の有機バインダーとして、ガラス
転移点が−２２〜１００℃の有機バインダーを使用する
ことを特徴とする耐熱性マットの製造方法に存する。[0006] A second aspect of the present invention is a first step of impregnating the alumina fiber mat with the organic binder liquid, and a second step of compressing the alumina fiber mat impregnated with the organic binder liquid in the thickness direction. A method for producing a heat-resistant mat including a third step of removing a medium liquid of an organic binder liquid while maintaining the thickness of the compressed alumina fiber mat, wherein the organic binder has a glass transition point of -22. A method for producing a heat-resistant mat, characterized by using an organic binder at a temperature of １００100 ° C.
【０００７】更に、本発明の第３の要旨は、モノリスと
当該モノリスの外側を覆う金属性シェルとの間にモノリ
ス保持材として上記の耐熱性マットを挿入配置して成る
ことを特徴とする排気ガス浄化用触媒コンバータに存す
る。Further, a third gist of the present invention is characterized in that the heat-resistant mat is inserted and arranged as a monolith holding material between the monolith and a metal shell covering the outside of the monolith. Exists in catalytic converter for gas purification.
【０００８】[0008]
【発明の実施の形態】以下本発明について詳細に説明す
る。先ず、説明の便宜上、本発明に係る耐熱性マットの
製造方法について説明する。本発明においては、基材マ
ットとして、主としてアルミナ繊維の積層シートから成
るアルミナ質繊維マットを使用する。アルミナ繊維の繊
維長は、通常２０〜２００ｍｍ、繊維径は通常１〜４０
μｍ、好ましくは２〜２０μｍである。アルミナ繊維
は、Ａｌ2Ｏ3／ＳｉＯ2重量比（以下、Ａｌ2Ｏ3／Ｓｉ
Ｏ2という）＝７０／３０〜７４／２６のムライト組成
であることが好ましい。Ａｌ2Ｏ3／ＳｉＯ2が上記範囲
外のアルミナ繊維では、高温時の結晶化および結晶成長
による繊維の劣化が早く、長期の使用に不向きである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. First, for convenience of description, a method for manufacturing a heat-resistant mat according to the present invention will be described. In the present invention, an alumina fiber mat mainly composed of a laminated sheet of alumina fibers is used as the substrate mat. The fiber length of the alumina fiber is usually 20 to 200 mm, and the fiber diameter is usually 1 to 40.
μm, preferably 2 to 20 μm. The alumina fiber has an Al 2 O 3 / SiO 2 weight ratio (hereinafter, Al 2 O 3 / Si
It is preferred O 2 hereinafter) = 70 / 30-74 / 26 is a mullite composition. In the case of alumina fibers having Al 2 O 3 / SiO 2 outside the above range, the fibers are rapidly deteriorated due to crystallization and crystal growth at a high temperature and are not suitable for long-term use.
【０００９】上記のムライト組成アルミナ繊維の結晶化
度は０〜１０％であることが好ましい。ここで、結晶化
度とは１３００℃で４時間焼成して完全に結晶化したム
ライトのＣｕＫα線によるＸ線回折における２θ＝２
６．３°に発現するピークの強度に対する、ムライト組
成アルミナ繊維の２θ＝２６．３°のピーク強度を百分
率（％）で表したものである。低結晶性のムライト組成
アルミナ繊維は、結晶成長の核となる結晶が少ないた
め、８００〜１０００℃の加熱によっても繊維の劣化が
生じ難い。The mullite-containing alumina fiber preferably has a crystallinity of 0 to 10%. Here, the crystallinity refers to 2θ = 2 in X-ray diffraction by CuKα ray of mullite completely baked at 1300 ° C. for 4 hours.
The peak intensity at 2θ = 26.3 ° of the mullite-containing alumina fiber with respect to the intensity of the peak appearing at 6.3 ° is expressed as a percentage (%). Since the low-crystalline mullite-containing alumina fiber has few crystals serving as nuclei for crystal growth, the fiber hardly deteriorates even when heated at 800 to 1000 ° C.
【００１０】また、粒径４５μｍ以上の大粒径のショッ
トは、繊維の切断を起こし、マットの復元性を損う傾向
がある。また、大粒径のショットは、マットの比重を部
分的に増大させ、熱伝導率等が不均一となる原因とな
る。例えば、排気ガス浄化用触媒コンバータにおいてモ
ノリス保持材として使用した場合、触媒の均一保持が困
難となる虞がある。従って、本発明で使用するアルミナ
繊維は、粒径４５μｍ以上のショットの含有率が７重量
％以下であることが好ましい。Also, shots having a large particle size of 45 μm or more tend to cut fibers and impair the resilience of the mat. In addition, a shot having a large particle diameter partially increases the specific gravity of the mat and causes nonuniform thermal conductivity and the like. For example, when used as a monolith holding material in a catalytic converter for purifying exhaust gas, it may be difficult to uniformly hold the catalyst. Therefore, the alumina fiber used in the present invention preferably has a content of shots having a particle size of 45 μm or more of 7% by weight or less.
【００１１】更に、アルミナ繊維の単繊維引張強度は、
好ましくは１５０〜４００ｋｇ／ｍｍ2である。引張強
度が１５０ｋｇ／ｍｍ2に満たないと、耐熱性マットと
して使用する際に十分な面圧が得られない。一方、４０
０ｋｇ／ｍｍ2を超えると繊維が脆くなる傾向がある。Further, the single fiber tensile strength of the alumina fiber is:
Preferably it is 150 to 400 kg / mm 2 . If the tensile strength is less than 150 kg / mm 2 , sufficient surface pressure cannot be obtained when used as a heat resistant mat. On the other hand, 40
If it exceeds 0 kg / mm 2 , the fibers tend to be brittle.
【００１２】上述のアルミナ繊維は、他のセラミック繊
維と比較し、耐熱性に優れ、軟化収縮などの熱劣化が極
めて少ないため、耐熱性マットとして使用する際に弾力
性に富んでいる。すなわち、低い嵩密度で高い保持力を
発生し且つその温度変化が少ない。従って、例えば、触
媒コンバーターにおけるモノリス保持材として使用した
場合、熱膨張の差によってモノリスと金属製シェルとの
間隔が変化し、その嵩密度が上昇した場合にも、モノリ
スに対する保持圧が急激に変化することがない点におい
て優れている。The above-mentioned alumina fiber has excellent heat resistance and extremely little thermal deterioration such as softening shrinkage as compared with other ceramic fibers, and therefore has high elasticity when used as a heat-resistant mat. That is, a high holding force is generated at a low bulk density, and the temperature change is small. Therefore, for example, when used as a monolith holding material in a catalytic converter, the spacing between the monolith and the metal shell changes due to the difference in thermal expansion, and even when the bulk density increases, the holding pressure on the monolith changes rapidly. It is excellent in that it does not.
【００１３】前記のアルミナ質繊維のマットは、例え
ば、オキシ塩化アルミニウム等のアルミナ源、シリカゾ
ル等のシリカ源、ポリビニルアルコール等の有機バイン
ダー及び水の混合物から成る紡糸原液を使用し、次の様
にして得られる。すなわち、紡糸したアルミナ繊維前駆
体を積層してシート化し、次いで、好ましくはニードル
パンチングを施した後、通常１０００〜１３００℃で焼
成する。The above-mentioned alumina fiber mat is prepared by using, for example, a spinning dope comprising a mixture of an alumina source such as aluminum oxychloride, a silica source such as silica sol, an organic binder such as polyvinyl alcohol, and water. Obtained. That is, the spun alumina fiber precursor is laminated to form a sheet, and then, preferably after needle punching, is usually fired at 1000 to 1300 ° C.
【００１４】上記のニードルパンチング処理は、繊維の
一部を積層面に対して縦方向に配向させる効果がある。
従って、シート内のアルミナ繊維前駆体の一部がシート
を貫通して縦方向に配向してシートを緊縛するため、シ
ートの嵩比重が高められ、また、層間の剥離や層間のず
れが防止される。ニードルパンチングの密度は通常１〜
５０打／ｃｍ2であり、ニードルパンチングの密度によ
り、マットの厚さ、嵩比重、強度などが調節される。マ
ットの厚さは通常３〜３０ｍｍであり、嵩密度は通常
０．１〜０．３ｇ／ｃｍ3である。The above-described needle punching has an effect of orienting a part of the fibers in the longitudinal direction with respect to the lamination surface.
Therefore, since a part of the alumina fiber precursor in the sheet penetrates the sheet and is oriented in the vertical direction to bind the sheet, the bulk specific gravity of the sheet is increased, and separation between layers and displacement between layers are prevented. You. Needle punching density is usually 1 ~
Was 50 strokes / cm 2, the density of needle punching, the mat thickness, bulk density, strength, etc. are adjusted. The thickness of the mat is usually 3 to 30 mm, and the bulk density is usually 0.1 to 0.3 g / cm 3 .
【００１５】なお、本発明においては、アルミナ繊維に
その他のセラミック繊維や無機膨張材を補助的に併用し
てもよい。この場合、マットに均一に混合してもよい
が、特に加熱される箇所を避けて局在させることによ
り、補助材の性能を維持しつつ低コスト化することが可
能である。上記のセラミック繊維としては、シリカ繊
維、ガラス繊維、石綿繊維などが挙げられ、無機膨張材
としては、ベントナイト、膨張性バーミキュライト、膨
張性黒鉛などが挙げられる。In the present invention, other ceramic fibers and inorganic expanders may be used in combination with the alumina fibers. In this case, the auxiliary material may be uniformly mixed with the mat, but it is possible to reduce the cost while maintaining the performance of the auxiliary material, particularly by localizing the heated material while avoiding a portion to be heated. Examples of the ceramic fiber include silica fiber, glass fiber, and asbestos fiber, and examples of the inorganic expandable material include bentonite, expandable vermiculite, and expandable graphite.
【００１６】本発明の製造方法は、基本的には、従来公
知の方法と同様に、アルミナ質繊維マットに有機バイン
ダー液を含浸させる第１工程、有機バインダー液が含浸
されたアルミナ質繊維マットを厚さ方向に圧縮する第２
工程、圧縮されたアルミナ質繊維マットの厚さを維持し
たまま有機バインダー液の媒体液を除去する第３工程を
包含する。The production method of the present invention basically comprises a first step of impregnating an organic binder liquid into an alumina fiber mat, and a step of impregnating the alumina fiber mat impregnated with the organic binder liquid, in the same manner as a conventionally known method. The second to compress in the thickness direction
And a third step of removing the medium liquid of the organic binder liquid while maintaining the thickness of the compressed alumina fiber mat.
【００１７】上記の有機バインダーとしては、水溶性有
機高分子化合物、熱可塑性樹脂、熱硬化性樹脂などを使
用できる。上記の水溶性有機高分子化合物としては、カ
ルボキシメチルセルロース、ポリビニルアルコール等が
挙げられる。熱可塑性樹脂としては、アクリル酸、アク
リル酸エステル、アクリルアミド、アクリロニトリル、
メタクリル酸、メタクリル酸エステル等の単独重合体、
アクリロニトリル・スチレン共重合体、アクリロニトリ
ル・ブタジエン・スチレン共重合体などのアクリル系樹
脂を初めとする各種の共重合体が挙げられる。また、熱
硬化性樹脂としては、ビスフェノール型エポキシ樹脂、
ノボラック型エポキシ樹脂などが挙げられる。上記の有
機バインダーの中ではアクリル又はメタクリル系のポリ
マーであるアクリル系樹脂が好ましい。As the organic binder, a water-soluble organic polymer compound, a thermoplastic resin, a thermosetting resin, or the like can be used. Examples of the water-soluble organic polymer compound include carboxymethyl cellulose, polyvinyl alcohol, and the like. As the thermoplastic resin, acrylic acid, acrylic acid ester, acrylamide, acrylonitrile,
Methacrylic acid, homopolymers such as methacrylic acid esters,
Various copolymers including an acrylic resin such as an acrylonitrile / styrene copolymer and an acrylonitrile / butadiene / styrene copolymer are exemplified. As the thermosetting resin, bisphenol type epoxy resin,
Novolak type epoxy resin and the like can be mentioned. Among the above organic binders, an acrylic resin which is an acrylic or methacrylic polymer is preferable.
【００１８】本発明においては、上記の様な有機バイン
ダーの中から、ガラス転移点（Ｔｇ）が−２２〜１００
℃の有機バインダーを選択して使用する。有機バインダ
ーのＴｇは、好ましくは−２２〜７０℃、更に好ましく
は−２２〜４０℃である。使用する有機バインダーのＴ
ｇが−２２℃未満の場合は、後述の第三工程で有機バイ
ンダーが除去装置に付着したり、耐熱性マットが除去装
置から剥がれ難くなったり、得られた耐熱性マットの表
面がべたつくために適用場所への装着が困難となる。一
方、使用する有機バインダーのＴｇが１００℃を超える
場合は、得られる耐熱性マットの柔軟性が低下してハン
ドリング性に欠ける。In the present invention, among the above organic binders, the glass transition point (Tg) is from −22 to 100.
Select and use an organic binder at ℃. Tg of the organic binder is preferably −22 to 70 ° C., and more preferably −22 to 40 ° C. T of the organic binder used
When g is less than -22 ° C, the organic binder adheres to the removing device in the third step described below, or the heat-resistant mat becomes difficult to peel off from the removing device, or the surface of the obtained heat-resistant mat becomes sticky. It is difficult to attach to the application place. On the other hand, when the Tg of the organic binder used exceeds 100 ° C., the flexibility of the obtained heat-resistant mat decreases, and the handling property is lacking.
【００１９】単独重合体のＴｇは公知の方法に従って測
定することが出来る。また、共重合体のＴｇは、下記に
示すGordon-Taylor式から、各共重合モノマーの単独重
合体のＴｇと各共重合モノマーの組成比率の算術平均か
ら求めることが出来る。The Tg of the homopolymer can be measured according to a known method. The Tg of the copolymer can be determined from the arithmetic average of the Tg of the homopolymer of each copolymerized monomer and the composition ratio of each copolymerized monomer from the Gordon-Taylor equation shown below.
【００２０】[0020]
【数１】1／Ｔｇ＝ΣＷｉ／Ｔｇｉ Ｔｇ ：共重合体のＴｇ（°K） Ｔｇｉ ：共重合モノマーの単独重合体のＴｇ（°K） Ｗｉ ：共重合体中の共重合モノマーの重量分率
（％）1 / Tg = ΣWi / Tgi Tg: Tg of copolymer (° K) Tgi: Tg of homopolymer of copolymerized monomer (° K) Wi: weight of copolymerized monomer in copolymer rate(%)
【００２１】上記の有機バインダーは、水溶液、水分散
型エマルジョン、ラテックス、有機溶媒溶液（これらを
総称して「バインダー液」と言う）として使用される。
バインダー液は、市販品をそのまま又は水などで希釈し
て使用することが出来る。なお、有機バインダーは、必
ずしも１種である必要はなく、２種以上の混合物であっ
ても何等差し支えない。前記の有機バインダーの中で
は、カルボキシメチルセルロース、ポリビニルアルコー
ル等の水溶性高分子化合物またはアクリル系樹脂が好ま
しい。特にアクリル又はメタクリル系のポリマーが好ま
しい。The above-mentioned organic binder is used as an aqueous solution, an aqueous dispersion type emulsion, a latex, and an organic solvent solution (these are collectively referred to as a “binder solution”).
As the binder liquid, a commercially available product can be used as it is or diluted with water or the like. In addition, the organic binder does not necessarily need to be one kind, and may be a mixture of two or more kinds. Among the organic binders described above, a water-soluble polymer compound such as carboxymethyl cellulose and polyvinyl alcohol or an acrylic resin is preferable. In particular, acrylic or methacrylic polymers are preferred.
【００２２】前記の第１工程、第２工程、第３工程は、
例えば、特許第３０２５４３３号公報などに記載された
公知の方法に従って行うことが出来る。The first step, the second step, and the third step include:
For example, it can be performed according to a known method described in Japanese Patent No. 3025433.
【００２３】すなわち、第１工程（アルミナ質繊維マッ
トに有機バインダー液を含浸させる工程）は、例えば、
有機バインダー液にマットを浸漬する方法、マットに有
機バインダー液を噴霧する方法などで行うことが出来
る。有機バインダーの含有量（有効成分としての値）
は、アルミナ繊維１００重量部に対し、通常３〜３０重
量部、好ましくは５〜２０重量部である。有機バインダ
ーの含有量が３重量部未満の場合は、マットの反発力に
よって成形体としての厚さを維持できない虞があり、３
０重量部を超える場合は、コスト高になる他、成形体の
柔軟性が損なわれる虞がある。That is, the first step (the step of impregnating the alumina-based fiber mat with the organic binder liquid) includes, for example,
The method can be carried out by a method of dipping the mat in an organic binder liquid or a method of spraying the organic binder liquid on the mat. Organic binder content (value as active ingredient)
Is usually 3 to 30 parts by weight, preferably 5 to 20 parts by weight, based on 100 parts by weight of the alumina fiber. If the content of the organic binder is less than 3 parts by weight, the thickness of the molded article may not be maintained due to the repulsive force of the mat.
If the amount exceeds 0 parts by weight, the cost may increase and the flexibility of the molded article may be impaired.
【００２４】第２工程（有機バインダー液が含浸された
アルミナ質繊維マットを厚さ方向に圧縮する工程）は、
プレス板、プレスローラー等の圧縮手段によって行うこ
とが出来る。プレス板としては、２枚の透液性板状体、
典型的にはパンチングメタル、樹脂ネット、金網（メッ
シュ）、多孔板または通気性の良い板状体などを使用し
得る。圧縮手段には、バインダー液の吸引手段を併用す
るのが好ましい。The second step (the step of compressing the alumina fiber mat impregnated with the organic binder liquid in the thickness direction)
It can be performed by a compression means such as a press plate or a press roller. As the press plate, two liquid-permeable plate-like bodies,
Typically, a punching metal, a resin net, a wire mesh (mesh), a perforated plate, or a plate-like material having good air permeability can be used. It is preferable to use a suction means for the binder liquid in combination with the compression means.
【００２５】第３工程（圧縮されたアルミナ質繊維マッ
トの厚さを維持したまま有機バインダー液の媒体液を除
去する工程）は、第２工程に引き続き行われ、有機バイ
ンダーが変質や分解を起こさない温度条件下で高温熱風
処理することにより行うことが出来る。The third step (the step of removing the medium of the organic binder liquid while maintaining the thickness of the compressed alumina fiber mat) is performed subsequent to the second step, and the organic binder is deteriorated or decomposed. It can be performed by high-temperature hot air treatment under non-temperature conditions.
【００２６】次に、本発明の耐熱性マット及び本発明の
排気ガス浄化用触媒コンバータについて説明する。Next, the heat resistant mat of the present invention and the catalytic converter for purifying exhaust gas of the present invention will be described.
【００２７】本発明の耐熱性マットは、基本的には、従
来公知のものと同様に、厚さ方向に圧縮されたアルミナ
質繊維マット中に熱分解によって消失する有機バインダ
ーが均一に含有されて成る。そして、本発明の耐熱性マ
ットは、適用場所に容易装着し得る様に改良され、その
特徴は、ガラス転移点が−２２〜１００℃の有機バイン
ダーを使用し、耐熱性マットの表面のべたつきを防止し
且つ適度な柔軟性を維持した点にある。The heat-resistant mat of the present invention basically comprises an alumina fiber mat compressed in the thickness direction uniformly containing an organic binder which disappears by thermal decomposition, similarly to a conventionally known mat. Become. The heat-resistant mat of the present invention is improved so that it can be easily attached to an application place. The feature of the heat-resistant mat is to use an organic binder having a glass transition point of −22 to 100 ° C. and to reduce the stickiness of the surface of the heat-resistant mat. The point is to maintain proper flexibility.
【００２８】本発明の排気ガス浄化用触媒コンバータ
は、基本的には、従来公知のものと同様に、モノリスと
当該モノリスの外側を覆う金属性シェルとの間にモノリ
ス保持材として耐熱性マットを挿入配置して成る。そし
て、本発明の触媒コンバータの特徴は、耐熱性マットと
して上記の耐熱性マットを使用した点にある。本発明の
触媒コンバータによれば、モノリスの固定の安定化によ
りモノリス外周からの排気ガスの漏洩が一層確実に防止
される。The catalytic converter for purifying exhaust gas of the present invention basically comprises a heat-resistant mat as a monolith holding material between a monolith and a metal shell covering the outside of the monolith, similarly to a conventionally known one. It is inserted and arranged. The catalytic converter of the present invention is characterized in that the above-mentioned heat-resistant mat is used as the heat-resistant mat. ADVANTAGE OF THE INVENTION According to the catalytic converter of this invention, leak of the exhaust gas from the outer periphery of a monolith is prevented more reliably by stabilization of fixing of a monolith.
【００２９】そして、本発明の耐熱性マット（モノリス
保持材）は、表面のべたつきが無く且つ適度な柔軟性を
有するため装着がスムーズに行われる。従って、モノリ
ス保持材の表面付近の繊維の破損が防止され、また、隙
間のない均一装着が可能である。また、本発明の耐熱性
マットは、上記の特徴を活かし、モノリス保持材以外の
各種の耐熱性パッキング材としても好適に使用し得る。The heat resistant mat (monolith holding material) of the present invention has no stickiness on the surface and has appropriate flexibility, so that it can be mounted smoothly. Therefore, breakage of the fibers near the surface of the monolith holding material is prevented, and uniform mounting without gaps is possible. Further, the heat-resistant mat of the present invention can be suitably used as various heat-resistant packing materials other than the monolith holding material by utilizing the above characteristics.
【００３０】[0030]
【実施例】次に、実施例により本発明を具体的に説明す
るが、本発明はその要旨を超えない限り、以下の実施例
によって限定されるものではない。以下の諸例におい
て、耐熱性マットの表面のべたつきの評価は、耐熱性マ
ットを１０ｃｍ×１０ｃｍに切り出し、１０ｃｍ×１０
ｃｍの鉄板に挟み、上から５００ｇ／ｃｍ2の圧力が掛
かるように錘を載せ、４０℃で２４時間放置した後、錘
を外し、耐熱性マットと鉄板を剥がすときの状態を観察
することにより行った。Next, the present invention will be described in detail with reference to examples. However, the present invention is not limited to the following examples unless it exceeds the gist of the present invention. In the following examples, the evaluation of the stickiness of the surface of the heat-resistant mat was performed by cutting out the heat-resistant mat into 10 cm × 10 cm and 10 cm × 10 cm.
cm, and put the weight so that a pressure of 500 g / cm 2 is applied from above, leave it at 40 ° C. for 24 hours, remove the weight, and observe the state when the heat-resistant mat and the iron plate are peeled off. went.
【００３１】実施例１ アルミナ質繊維マットとして、Ａｌ2Ｏ3／ＳｉＯ2重量
比＝７２／２８、結晶化度０％、繊維径約４μｍ、４５
μｍ以上のショットを４重量％含有し、短繊維引張強度
２００ｋｇ／ｍｍ2のアルミナ繊維のマット（厚さ１
２．５ｍｍ、嵩密度０．１ｇ／ｃｍ3）を使用した。Example 1 As an alumina fiber mat, Al 2 O 3 / SiO 2 weight ratio = 72/28, crystallinity 0%, fiber diameter about 4 μm, 45
4% by weight of a shot having a thickness of 1 μm or more and a mat of alumina fibers having a short fiber tensile strength of 200 kg / mm 2 (thickness: 1 mm).
2.5 mm and a bulk density of 0.1 g / cm 3 ) were used.
【００３２】先ず、上記のマット１００重量部当たり、
有機バインダー中の樹脂成分のＴｇが−８℃のアクリレ
ート系ラテックス（日本ゼオン社製「ニッポールラテッ
クスＬｘ−８７４」）１５重量部を添着した。その後、
圧縮乾燥（１３０℃で１時間）して厚さ６ｍｍの耐熱性
マットを得た。圧縮乾燥機には有機バインダーの付着は
認められず、耐熱性マットは圧縮乾燥機から問題なく剥
がれた。耐熱性マットの表面を指で触って表面のべたつ
きを観察したがべたつきは感じなかった。更に、表面の
べたつきの評価も同時に行った。その結果を表１に示
す。First, per 100 parts by weight of the above mat,
15 parts by weight of an acrylate-based latex (“Nippol latex Lx-874” manufactured by Zeon Corporation) having a resin component Tg of −8 ° C. in the organic binder was attached. afterwards,
After compression drying (at 130 ° C. for 1 hour), a heat-resistant mat having a thickness of 6 mm was obtained. No adhesion of the organic binder was observed on the compression dryer, and the heat-resistant mat was peeled off from the compression dryer without any problem. The surface of the heat-resistant mat was touched with a finger to observe the stickiness of the surface, but no stickiness was felt. Further, the evaluation of the stickiness of the surface was performed at the same time. Table 1 shows the results.
【００３３】次いで、モノリスと金属性シェル（キャ
ン）との間にモノリス保持材として上記の耐熱性マット
を装着し排気ガス浄化用触媒コンバータを製作した。こ
のときのキャンとモノリスの隙間は約３．５ｍｍであ
る。耐熱性マットの表面が接触する様にしてモノリスに
巻きつけ、テープで接合部を固定後、キャンに装着を試
みたところ、耐熱性マットとキャンの滑りが良好であ
り、装着が容易であった。また、装着後、キャンを電動
カッターで切り開き、耐熱性マット表面を観察した結
果、表面の傷みはなく良好に装着されていることが確認
された。Next, the above-mentioned heat-resistant mat was mounted between the monolith and the metallic shell (can) as a monolith holding material to produce a catalytic converter for purifying exhaust gas. At this time, the gap between the can and the monolith is about 3.5 mm. After winding around the monolith so that the surface of the heat-resistant mat was in contact with it, fixing the joint with tape, and then trying to attach it to the can, the slip between the heat-resistant mat and the can was good and the attachment was easy. . After the mounting, the can was cut open with an electric cutter, and the surface of the heat-resistant mat was observed. As a result, it was confirmed that the can was well mounted without surface damage.
【００３４】実施例２〜５及び比較例１〜２ 実施例１において、有機バインダー中の樹脂成分のＴｇ
が異る表１に示す各アクリレート系ラテックスをそれぞ
れ使用した以外は、実施例１と同様にして耐熱性マット
の製造および触媒コンバータの製作を行って評価した。Examples 2-5 and Comparative Examples 1-2 In Example 1, the Tg of the resin component in the organic binder was changed.
The evaluation was carried out in the same manner as in Example 1 except that the respective acrylate-based latexes shown in Table 1 differing from the above were used in the production of a heat-resistant mat and the production of a catalytic converter.
【００３５】[0035]
【表１】 [Table 1]
【００３６】実施例２〜４においても、実施例１と同
様、耐熱性マットの製造において圧縮乾燥機への有機バ
インダーの付着は認められなかった。また、触媒コンバ
ータの作製においては、耐熱性マットとキャンの滑りが
良好であり、装着が容易であった。また、装着後、キャ
ンを電動カッターで切り開き、耐熱性マット表面を観察
したところ、表面の傷みはなく良好に装着されているこ
とが確認された。In Examples 2 to 4, as in Example 1, no organic binder was attached to the compression dryer in the production of the heat resistant mat. Further, in the production of the catalytic converter, the heat-resistant mat and the can slipped well, and the mounting was easy. After the mounting, the can was cut open with an electric cutter, and the surface of the heat-resistant mat was observed. As a result, it was confirmed that the surface was not damaged and the mounting was good.
【００３７】比較例１及び２の場合、耐熱性マットの製
造において圧縮乾燥機に有機バインダーが５重量部（ア
クリレートラテックス換算値）付着していた。また、触
媒コンバータの製作においては、耐熱性マットとキャン
の滑りが悪く、その結果、耐熱性マットとモノリスとの
間にずれが生じた。また、装着後、キャンを電動カッタ
ーで切り開き、耐熱性マット表面を観察したところ、滑
り不良によると思われる表面傷や剥離が生じていた。In the case of Comparative Examples 1 and 2, 5 parts by weight (in terms of acrylate latex) of the organic binder had adhered to the compression dryer in the production of the heat resistant mat. Further, in the production of the catalytic converter, slippage of the heat-resistant mat and the can was poor, and as a result, a shift occurred between the heat-resistant mat and the monolith. After the mounting, the can was cut open with an electric cutter, and the surface of the heat-resistant mat was observed.
【００３８】[0038]
【発明の効果】以上説明した本発明によれば、適用場所
に容易装着し得る様に改良された耐熱性マット及びモノ
リス保持材が提供される共に、有機バインダー液の付着
に伴う種々の問題を解決した耐熱性マットの製造方法が
提供される。According to the present invention described above, a heat-resistant mat and a monolith holding material improved so as to be easily mounted at an application place are provided, and various problems accompanying the adhesion of an organic binder liquid are provided. A method for producing a heat resistant mat is provided.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 野口 勇二 新潟県上越市福田１番地 三菱化学産資株 式会社直江津工場内 Ｆターム(参考） 3G091 AA02 AB01 BA00 BA07 BA09 BA39 GA05 GB16Z GB17Z GB19Z HA26 HA27 HA29 4D048 BB02 BB18 CC04 4G069 AA20 DA05 EA19 EE01 4L033 AA09 AC05 CA18 CA68 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yuji Noguchi 1 Fukuda, Joetsu-shi, Niigata Mitsubishi Chemical Industrial Co., Ltd. Naoetsu Plant F-term (reference) 3G091 AA02 AB01 BA00 BA07 BA09 BA39 GA05 GB16Z GB17Z GB19Z HA26 HA27 HA29 4D048 BB02 BB18 CC04 4G069 AA20 DA05 EA19 EE01 4L033 AA09 AC05 CA18 CA68
Claims (6)
ット中に熱分解によって消失する有機バインダーが含有
されて成る耐熱性マットであって、上記の有機バインダ
ーとして、ガラス転移点が−２２〜１００℃の有機バイ
ンダーを使用して成ることを特徴とする耐熱性マット。1. A heat-resistant mat comprising an alumina fiber mat compressed in the thickness direction and an organic binder which disappears by thermal decomposition contained therein, wherein the organic binder has a glass transition point of -22 to 22. A heat resistant mat comprising an organic binder at 100 ° C.
液を含浸させる第１工程、有機バインダー液が含浸され
たアルミナ質繊維マットを厚さ方向に圧縮する第２工
程、圧縮されたアルミナ質繊維マットの厚さを維持した
まま有機バインダー液の媒体液を除去する第３工程を包
含する耐熱性マットの製造方法において、上記の有機バ
インダーとして、ガラス転移点が−２２〜１００℃の有
機バインダーを使用することを特徴とする耐熱性マット
の製造方法。2. A first step of impregnating the alumina fiber mat with an organic binder liquid, a second step of compressing the alumina fiber mat impregnated with the organic binder liquid in a thickness direction, In the method for producing a heat-resistant mat including the third step of removing the medium liquid of the organic binder liquid while maintaining the thickness, an organic binder having a glass transition point of −22 to 100 ° C. is used as the organic binder. A method for producing a heat-resistant mat, comprising:
インダーを使用する請求項２に記載の製造方法。3. The method according to claim 2, wherein an organic binder having a glass transition point of −20 to 70 ° C. is used.
請求項２又は３に記載の製造方法。4. The method according to claim 2, wherein the organic binder is an acrylic resin.
りの有機バインダーの含有量が３〜３０重量部である請
求項２〜４の何れかに記載の製造方法。5. The method according to claim 2, wherein the content of the organic binder per 100 parts by weight of the alumina fiber mat is 3 to 30 parts by weight.
属性シェルとの間にモノリス保持材として請求項１に記
載の耐熱性マットを挿入配置して成ることを特徴とする
排気ガス浄化用触媒コンバータ。6. A catalytic converter for purifying exhaust gas, wherein the heat-resistant mat according to claim 1 is inserted and arranged as a monolith holding member between a monolith and a metallic shell covering the outside of the monolith. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001103384A JP2002302875A (en) | 2001-04-02 | 2001-04-02 | Heat resistant mat, method for producing the same, and catalytic converter for purifying exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001103384A JP2002302875A (en) | 2001-04-02 | 2001-04-02 | Heat resistant mat, method for producing the same, and catalytic converter for purifying exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002302875A true JP2002302875A (en) | 2002-10-18 |
Family
ID=18956453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001103384A Pending JP2002302875A (en) | 2001-04-02 | 2001-04-02 | Heat resistant mat, method for producing the same, and catalytic converter for purifying exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002302875A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005024119A1 (en) * | 2003-09-02 | 2005-03-17 | Nagoya Oilchemical Co., Ltd. | Flame-retardant sheet and formed article therefrom |
| JP2006223920A (en) * | 2005-02-15 | 2006-08-31 | Three M Innovative Properties Co | Holding material of contamination control element and contamination controller |
| JP2006342774A (en) * | 2005-06-10 | 2006-12-21 | Ibiden Co Ltd | Holding sealing material and manufacturing method thereof |
| JP2007218221A (en) * | 2006-02-20 | 2007-08-30 | Mitsubishi Kagaku Sanshi Corp | Monolith holding material |
| EP2172625A1 (en) | 2008-09-25 | 2010-04-07 | Ibiden Co., Ltd. | Mat product, manufacturing method of the mat product, exhaust gas treating apparatus, and muffler apparatus |
| JP2012157809A (en) * | 2011-01-31 | 2012-08-23 | Three M Innovative Properties Co | Mounting member for pollution control element, manufacturing method thereof, and pollution control device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09946A (en) * | 1995-04-13 | 1997-01-07 | Mitsubishi Chem Corp | Monolith holding material, method for producing the same, and catalytic converter using the monolith |
| WO1999023370A1 (en) * | 1997-11-03 | 1999-05-14 | Saffil Limited | Composite mat |
| WO2000033946A1 (en) * | 1998-12-08 | 2000-06-15 | Unifrax Corporation | Amorphous non-intumescent inorganic fiber mat for low temperature exhaust gas treatment devices |
-
2001
- 2001-04-02 JP JP2001103384A patent/JP2002302875A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09946A (en) * | 1995-04-13 | 1997-01-07 | Mitsubishi Chem Corp | Monolith holding material, method for producing the same, and catalytic converter using the monolith |
| WO1999023370A1 (en) * | 1997-11-03 | 1999-05-14 | Saffil Limited | Composite mat |
| WO2000033946A1 (en) * | 1998-12-08 | 2000-06-15 | Unifrax Corporation | Amorphous non-intumescent inorganic fiber mat for low temperature exhaust gas treatment devices |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005024119A1 (en) * | 2003-09-02 | 2005-03-17 | Nagoya Oilchemical Co., Ltd. | Flame-retardant sheet and formed article therefrom |
| JP2006223920A (en) * | 2005-02-15 | 2006-08-31 | Three M Innovative Properties Co | Holding material of contamination control element and contamination controller |
| JP2006342774A (en) * | 2005-06-10 | 2006-12-21 | Ibiden Co Ltd | Holding sealing material and manufacturing method thereof |
| US8533950B2 (en) | 2005-06-10 | 2013-09-17 | Ibiden Co., Ltd. | Method of manufacturing holding and sealing material |
| EP1731729B2 (en) † | 2005-06-10 | 2023-03-08 | Ibiden Co., Ltd. | Holding and sealing material for use in a catalyst to clean gaseous emission |
| JP2007218221A (en) * | 2006-02-20 | 2007-08-30 | Mitsubishi Kagaku Sanshi Corp | Monolith holding material |
| EP2172625A1 (en) | 2008-09-25 | 2010-04-07 | Ibiden Co., Ltd. | Mat product, manufacturing method of the mat product, exhaust gas treating apparatus, and muffler apparatus |
| US8231835B2 (en) | 2008-09-25 | 2012-07-31 | Ibiden Co., Ltd. | Mat product, manufacturing method of the mat product, exhaust gas treating apparatus, and muffler apparatus |
| JP2012157809A (en) * | 2011-01-31 | 2012-08-23 | Three M Innovative Properties Co | Mounting member for pollution control element, manufacturing method thereof, and pollution control device |
| US9670814B2 (en) | 2011-01-31 | 2017-06-06 | 3M Innovative Properties Company | Mounting member for pollution control element, manufacturing method thereof, and pollution control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3282362B2 (en) | Grasping material for exhaust gas purification equipment | |
| JP4663341B2 (en) | Heat insulation material for end cone part of exhaust gas purifier | |
| US8951323B2 (en) | Multiple layer mat and exhaust gas treatment device | |
| CA2782413C (en) | Multilayer mounting mat for pollution control devices | |
| CN102459834B (en) | exhaust gas treatment device | |
| US20170198622A1 (en) | Thermally Stable Inorganic Fibers For Exhaust Gas Treatment Device Insulating Mat | |
| CA3129766C (en) | Inorganic fiber-formed article, mat for exhaust gas cleaning apparatus, and exhaust gas cleaning apparatus | |
| JP6055842B2 (en) | Glass fiber board containing inorganic binder and method for producing the same | |
| JP2002302875A (en) | Heat resistant mat, method for producing the same, and catalytic converter for purifying exhaust gas | |
| JP6327359B2 (en) | Method for producing binder-containing inorganic fiber molded body | |
| JP4295832B2 (en) | Inorganic fiber molded body and method for producing the same | |
| JP4687496B2 (en) | Monolith holding material | |
| JP4573427B2 (en) | Heat resistant mat, method for producing the same, and catalytic converter for exhaust gas purification | |
| JP4578712B2 (en) | Manufacturing method of heat-resistant mat | |
| JP4524051B2 (en) | Heat resistant mat, method for producing the same, and catalytic converter for exhaust gas purification | |
| JP2002302859A (en) | Manufacturing method of heat resistant mat | |
| JP2000344583A (en) | Heat resistant mat | |
| JP2000343634A (en) | Heat resistant mat | |
| JP2002302860A (en) | Manufacturing method of heat resistant mat | |
| JP4687483B2 (en) | Monolith holding material | |
| JP2002292243A (en) | Manufacturing method of heat resistant mat | |
| JP2002038379A (en) | Method for producing inorganic fiber structure | |
| JP3432996B2 (en) | Method for producing inorganic fiber block and heat insulating structure | |
| JP2002363846A (en) | Manufacturing method of heat resistant mat | |
| JP3827857B2 (en) | Inorganic fiber molded products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080327 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20080423 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080529 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100908 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100914 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101115 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20110125 |