MANUFACTURE OF CONDUCTIVE SHEET

PURPOSE:To have a conductive sheet in which carbon black is dispersed in high uni formity by mixing a specific amount of fluorine-contained resin capable of being turned into fibers with a specific amount of carbonaceous powder, kneading upon addition of a kneading aid agent, which is to then be dis...

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Bibliographische Detailangaben
1. Verfasser:	KOSHO MASUMI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BASIC ELECTRIC ELEMENTS BRAIDING CABLES CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CONDUCTORS COTTON-WOOL ELECTRICITY FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS IMPREGNATING OR COATING OF PAPER INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS INSULATORS KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPINNING TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TRIMMINGS WADDING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To have a conductive sheet in which carbon black is dispersed in high uni formity by mixing a specific amount of fluorine-contained resin capable of being turned into fibers with a specific amount of carbonaceous powder, kneading upon addition of a kneading aid agent, which is to then be dissolved and removed, re- dispersing the rest in an organic solvent, followed by filtration and drying, and by molding with a certain temp. and pressure. CONSTITUTION:100wt.% carbonaceous powder or more and 100wt.% fluorine-contained resin capable of being turned into fibers are added together and kneaded upon addition of a kneading aid agent, which is dissolved and removed from the mixture by the use of a solvent, and the rest is re-dispersed in an organic solvent, followed by filtra tion and drying, and then hot pressure molding is made at a temp. 330-400 deg.C and with a pressure 10-150kg/cm . Examples of fluorine-contained resin capable of being turned into fibers are polytetrafluoroethylene and polytrifluoroethylene, while one example of the carbonaceous powder is a one having conductivity such as carbon black having a nitrogen adsorbing specific surface area (N2SA) over 40m /g and a DBP oil absorbing amount no less than 50ml/100g. This allows uniform dispersion and retention of a great quantity of carbon black in the honeycomb netting structure of the fluorine-contained resin fibers.