Automotive weather stripping
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United States of America Patent
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Oct 19, 1999
Issued Date -
N/A
app pub date -
Nov 14, 1997
filing date -
Jun 20, 1991
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Abstract
The invention concerns a silicone-modified EPDM modified with a freeze release additive of a fatty acid amide and/or optionally, graphite having at least 85% carbon, and compounded and co-extruded onto the surface of elastomeric sponge automotive weatherstripping thereby forming a permanent skin surface on the sponge material. The resulting material has improved and desirable freeze-release and coefficient of friction properties. These improved properties eliminate the need for currently used spray coatings, resulting in manufacturing cost savings and more durable surface.
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