Heat Curable Sealant for Fuel Cells
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United States of America Patent
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Issued Date -
Dec 6, 2018
app pub date -
Aug 10, 2018
filing date -
Aug 10, 2018
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Abstract
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.
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