HEAT CURABLE SEALANT FOR FUEL CELLS

Disclosed is a heat curable composition that cures to an elastomer. The composition finds special use as an injection moldable sealant, especially for fuel cells. The composition includes at least one (meth)acrylate terminated polyolefin; at least one ester (meth)acrylate monomer comprising a C1 to...

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Bibliographische Detailangaben
Hauptverfasser:	JIN, Shuhua, DECATO, Alfred A
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELECTRICITY GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	Disclosed is a heat curable composition that cures to an elastomer. The composition finds special use as an injection moldable sealant, especially for fuel cells. The composition includes at least one (meth)acrylate terminated polyolefin; at least one ester (meth)acrylate monomer comprising a C1 to C30 ester; at least one free radical heat cure initiator; at least one silica filler; and optionally, one or more additives. The composition provides for rapid cure rates on the order of several minutes allowing for mass production. In addition, the formulation viscosity is sufficiently low enough to permit use in a wide variety of injection mold processes.