Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Woven fabric – Including a free metal or alloy constituent
Patent
1998-08-12
2000-04-11
Pezzuto, Helen L.
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Woven fabric
Including a free metal or alloy constituent
442173, 442180, 442233, 442234, 524571, D03D 300
Patent
active
060488077
ABSTRACT:
An electrical substrate material is presented comprising a thermosetting matrix which includes a polybutadiene or polyisoprene resin, an unsaturated butadiene- or isoprene-containing polymer and an ethylene propylene rubber; a particulate filler and, a fabric. Preferred ethylene propylene rubbers are ethylene propylene copolymers and ethylene propylene diene terpolymer rubbers wherein the diene is dicyclopentadiene. The ethylene propylene rubber is present in an amount of up to about 20 wt % with respect to the resin, preferably in an amount of about 1 to about 7 wt %, more preferably about 5 wt %. The presence of the ethylene propylene rubber enhances the dielectric strength of the resulting electrical substrate material, while other electrical, chemical, and mechanical properties of the material are not adversely effected.
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Pezzuto Helen L.
World Properties, Inc.
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