POROUS MEMBER AND ITS PRODUCTION

PURPOSE:To obtain a porous member having a complicated shape and controlled in gas permeability, etc., by impregnating the surface part of a porous object with a mixture prepared by dispersing fine particles and optionally a thickener in a resin emulsion, solidifying the mixture by drying, and fusin...

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Hauptverfasser: TAKANO YUKIO, KOJO RYUICHI
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creator TAKANO YUKIO
KOJO RYUICHI
description PURPOSE:To obtain a porous member having a complicated shape and controlled in gas permeability, etc., by impregnating the surface part of a porous object with a mixture prepared by dispersing fine particles and optionally a thickener in a resin emulsion, solidifying the mixture by drying, and fusing the fine particles together by heat treatment to form a layer of fine particles with which the pores of the porous object are filled up and to simultaneously decompose the resin emulsion to form pores in the layer of fine particles. CONSTITUTION:The upper Figure is a perspective view of a thrust bearing before the formation of a layer of fine particles, wherein a disc 2 made of a porous ceramic material is fitted to an air supply case 1. This bearing is impregnated with a mixture comprising a sol of fine particles, an emulsion and a thickener. An example of fine particles is silica particles having a mean particle diameter of 0.01-1mum. The applied mixture is solidified by drying at about 100 deg.C and heat-treated at room temperature to 700 deg.C. As shown in the lower Figures, the fine particles fuse together to form a layer of fine particles which stops the pores 3 of the disc 2, and pores 6 are formed by the gas formed by the decomposition of the resin emulsion.
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CONSTITUTION:The upper Figure is a perspective view of a thrust bearing before the formation of a layer of fine particles, wherein a disc 2 made of a porous ceramic material is fitted to an air supply case 1. This bearing is impregnated with a mixture comprising a sol of fine particles, an emulsion and a thickener. An example of fine particles is silica particles having a mean particle diameter of 0.01-1mum. The applied mixture is solidified by drying at about 100 deg.C and heat-treated at room temperature to 700 deg.C. As shown in the lower Figures, the fine particles fuse together to form a layer of fine particles which stops the pores 3 of the disc 2, and pores 6 are formed by the gas formed by the decomposition of the resin emulsion.</description><edition>6</edition><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; ARTIFICIAL STONE ; BEARINGS ; BLASTING ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; ELEMENTS OR CRANKSHAFT MECHANISMS ; ENGINEERING ELEMENTS AND UNITS ; FLEXIBLE SHAFTS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; GENERAL PROCESSES OF COMPOUNDING ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; HEATING ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; LIGHTING ; LIME, MAGNESIA ; MECHANICAL ENGINEERING ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; REFRACTORIES ; ROTARY BODIES OTHER THAN GEARING ELEMENTS ; SHAFTS ; SLAG ; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; THERMAL INSULATION IN GENERAL ; TRANSPORTING ; TREATMENT OF NATURAL STONE ; WEAPONS ; WORKING-UP</subject><creationdate>1995</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19950613&amp;DB=EPODOC&amp;CC=JP&amp;NR=H07149940A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19950613&amp;DB=EPODOC&amp;CC=JP&amp;NR=H07149940A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKANO YUKIO</creatorcontrib><creatorcontrib>KOJO RYUICHI</creatorcontrib><title>POROUS MEMBER AND ITS PRODUCTION</title><description>PURPOSE:To obtain a porous member having a complicated shape and controlled in gas permeability, etc., by impregnating the surface part of a porous object with a mixture prepared by dispersing fine particles and optionally a thickener in a resin emulsion, solidifying the mixture by drying, and fusing the fine particles together by heat treatment to form a layer of fine particles with which the pores of the porous object are filled up and to simultaneously decompose the resin emulsion to form pores in the layer of fine particles. CONSTITUTION:The upper Figure is a perspective view of a thrust bearing before the formation of a layer of fine particles, wherein a disc 2 made of a porous ceramic material is fitted to an air supply case 1. This bearing is impregnated with a mixture comprising a sol of fine particles, an emulsion and a thickener. An example of fine particles is silica particles having a mean particle diameter of 0.01-1mum. The applied mixture is solidified by drying at about 100 deg.C and heat-treated at room temperature to 700 deg.C. 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CONSTITUTION:The upper Figure is a perspective view of a thrust bearing before the formation of a layer of fine particles, wherein a disc 2 made of a porous ceramic material is fitted to an air supply case 1. This bearing is impregnated with a mixture comprising a sol of fine particles, an emulsion and a thickener. An example of fine particles is silica particles having a mean particle diameter of 0.01-1mum. The applied mixture is solidified by drying at about 100 deg.C and heat-treated at room temperature to 700 deg.C. As shown in the lower Figures, the fine particles fuse together to form a layer of fine particles which stops the pores 3 of the disc 2, and pores 6 are formed by the gas formed by the decomposition of the resin emulsion.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
ARTIFICIAL STONE
BEARINGS
BLASTING
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERAL PROCESSES OF COMPOUNDING
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HEATING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LIGHTING
LIME, MAGNESIA
MECHANICAL ENGINEERING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
REFRACTORIES
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
SLAG
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
THEIR PREPARATION OR CHEMICAL WORKING-UP
THERMAL INSULATION IN GENERAL
TRANSPORTING
TREATMENT OF NATURAL STONE
WEAPONS
WORKING-UP
title POROUS MEMBER AND ITS PRODUCTION
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