ETHYLENE-PROPYLENE-DIENE RUBBER FOAMED MATERIAL AND SEALING MATERIAL
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United States of America Patent
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Issued Date -
Sep 25, 2014
app pub date -
Mar 12, 2014
filing date -
Mar 19, 2013
priority date (Note) -
Abandoned
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Abstract
An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. In the ethylene-propylene-diene rubber foamed material, the content ratio of a sulfur atom calculated based on the measurement result of a fluorescent X-ray measurement, based on mass, is 1000 ppm or less, a rate of change of a 50% compressive load value after being heated at 140° C. for 7 days to a 50% compressive load value before being heated is 50% or more and 150% or less, and the 50% compressive load value before being heated is 0.1 N/cm2 or more and 2.0 N/cm2 or less.
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