POLYTETRAFLUOROETHYLENE COMPOSITION

PURPOSE:To provide a polytetrafluoroethylene compsn. which does not cause the problems of coloration, discoloration, pore formation, etc. during firing and does not stain an instrument in the subsequent stages, by blending a vitreous filler treated with an organosilicon compd. CONSTITUTION:At least...

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Bibliographische Detailangaben
Hauptverfasser:	NARISAWA SHIGEYUKI, YOSHIDA SHOHEI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a polytetrafluoroethylene compsn. which does not cause the problems of coloration, discoloration, pore formation, etc. during firing and does not stain an instrument in the subsequent stages, by blending a vitreous filler treated with an organosilicon compd. CONSTITUTION:At least 0.01wt% (based on the quantity of a compsn.) organosilicon compd. of the formula (wherein R, R' are each a 1-8C alkyl; n is 1-4) such as methyltrimethoxysilane is added to a vitreous filler such as glass fiber, powder or flake. The mixture is mixed and 80 deg.C or below for 15-100hr to effect a reaction therebetween. 3-100pts.wt. said surface-treated vitreous filler is mixed with 100pts.wt. polytetrafluoroethylene.