ALUMINA-BASED FIBROUS MASS, PROCESS FOR PRODUCING SAME, AND USE

• Main Authors: YOSHINO RYOETSU, OHSHIMA YASUTAKA, FUJITA KAZUTAKA, ADAM KELSALL, JONATHAN CROSS, KELVIN WEEKS, EGUCHI MASATAKA, HISAMOTO MASANORI, WATANABE MASAAKI
• Format: Patent
• Language: English; French; Japanese
• Published: 08.05.2014
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; ARTIFICIAL STONE; BRAIDING; CEMENTS; CERAMICS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; KNITTING; LACE-MAKING; LIME, MAGNESIA; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; REFRACTORIES; SLAG; SPINNING; TEXTILES; TREATMENT OF NATURAL STONE; TRIMMINGS; WADDING

Provided are an alumina-based fibrous mass which has a high areal pressure and which is applicable to holding materials for exhaust gas purification devices and a process for producing the alumina-based fibrous mass. The alumina-based fibrous mass has a chemical composition containing 70-90%, excluding 90%, Al2O3 and has a total pore volume of 0.0055 ml/g or less. La présente invention concerne une masse fibreuse à base d'alumine qui a une tension superficielle élevée et qui est applicable à des matériaux de support pour des dispositifs de purification de gaz d'échappement et un procédé pour la production de la masse fibreuse à base d'alumine. La masse fibreuse à base d'alumine a une composition chimique contenant de 70 à 90 %, à l'exclusion de 90 %, de Al2O3 et a un volume de pores total de 0,0055 ml/g ou moins.