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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Bibliographic Details
Main Authors Jin, Shuhua, DeCato, Alfred A
Format Patent
LanguageEnglish
Published 06.12.2018
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
ELECTRICITY
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
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Summary: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.
Bibliography:Application Number: US201816100550