COATING AGENT FOR RUBBER-COATED CYLINDER HEAD GASKET, AND CYLINDER HEAD GASKET

PROBLEM TO BE SOLVED: To provide a coating agent for a rubber-coated cylinder head gasket superior in abrasion resistance under high bearing pressure and high temperature conditions, and capable of forming a coating film which can make a rubber layer hardly fasten to a seal face of a cylinder block...

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Bibliographische Detailangaben
Hauptverfasser:	KITAJIMA NAOKO, MORI HIDEAKI, NAKAJIMA YO, WATANABE TOMOKAZU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMBUSTION ENGINES CORRECTING FLUIDS CYLINDERS CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES DYES ENGINEERING ELEMENTS AND UNITS FILLING PASTES GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INKS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PISTONS POLISHES SEALINGS THERMAL INSULATION IN GENERAL TRANSPORTING USE OF MATERIALS THEREFOR WEAPONS WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a coating agent for a rubber-coated cylinder head gasket superior in abrasion resistance under high bearing pressure and high temperature conditions, and capable of forming a coating film which can make a rubber layer hardly fasten to a seal face of a cylinder block or a cylinder head after used under high bearing pressure and high temperature conditions, and to provide a cylinder head gasket obtained by using the same.SOLUTION: A coating agent for a rubber-coated cylinder head gasket includes a lubricant and a urethane resin, the lubricant is unbaked polytetrafluoroethylene resin particles of average primary particle diameter of 1 μm or less, and a content of the unbaked polytetrafluoroethylene resin particles in a solid content is 30-80 vol.%.SELECTED DRAWING: None 【解決課題】高面圧且つ高温条件下での耐摩耗性に優れ、且つ、高面圧且つ高温条件下で使用した後に、ゴム層がシリンダブロック又はシリンダヘッドのシール面に固着し難くすることができる被膜を形成することができるゴム被覆シリンダヘッドガスケット用のコーティング剤、及びそれを用いて得られるシリンダヘッドガスケットを提供すること。【解決手段】ゴム被覆シリンダヘッドガスケット用コーティング剤であって、潤滑剤と、ウレタン樹脂と、を含有し、該潤滑剤が、平均１次粒子径が１μｍ以下の未焼成ポリテトラフルオロエチレン樹脂粒子であり、固形分中の該未焼成ポリテトラフルオロエチレン樹脂粒子の含有量が３０〜８０体積％であること、を特徴とするゴム被覆シリンダヘッドガスケット用コーティング剤。【選択図】なし