Electrically conductive, flame retardant fillers, method of manufacture, and use thereof
First Claim
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1. A particulate flame retardant material comprising flame retardant particles at least substantially coated with a conductive metal.
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Abstract
A conductive, flame retardant composition is formed from a particulate flame retardant coated with a conductive metal. The composition can provide both conductivity and flame retardance to polymeric compositions such as adhesives, foams, and elastomers.
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Citations
28 Claims
- 1. A particulate flame retardant material comprising flame retardant particles at least substantially coated with a conductive metal.
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5. A composition comprising
a polymeric composition; - and
a filler composition, the filler composition comprising flame retardant particles at least substantially coated with a conductive metal. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A composition comprising
a pressure sensitive adhesive composition; - and
flame retardant particles at least substantially coated with a conductive metal, wherein the composition has a volume resistivity of about 10−
3 ohm-cm to about 108 ohm-cm. - View Dependent Claims (14)
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15. A composition comprising
a polymeric foam; - and
flame retardant particles at least substantially coated with a conductive metal, wherein the composition has a volume resistivity of about 10−
3 ohm-cm to about 108 ohm-cm. - View Dependent Claims (16, 17)
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18. A composition comprising
an elastomer; - and
flame retardant particles substantially coated with a conductive metal, wherein the composition has a volume resistivity of about 10−
3 ohm-cm to about 103 ohm-cm. - View Dependent Claims (19, 20)
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21. A method of manufacturing a polymeric foam, comprising:
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frothing a liquid composition comprising a polyisocyanate component, an active hydrogen-containing component reactive with the polyisocyanate component, a surfactant, a catalyst, and flame retardant particles substantially coated with a conductive metal; and
curing the froth to produce a polyurethane foam having a density of about 1 to about 50 pounds per cubic foot, an elongation of greater than or equal to about 20% and a compression set of less than or equal to about 30.
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22. A method of manufacturing a polymeric foam comprising:
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extruding a mixture comprising an essentially linear single site initiated polyolefin, a blowing agent and an optional curing agent; and
blowing the mixture to produce a foam having a density of about 1 to about 20 pounds per cubic foot, an elongation of greater than or equal to about 100% and a compression set of less than or equal to about 70.
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23. A method of manufacturing a polymeric foam comprising:
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extruding a mixture comprising a polysiloxane polymer having hydride substituents, flame retardant particles substantially coated with a conductive metal, a blowing agent and a catalyst; and
blowing tie mixture to produce a silicone foam having a density of about 4 to about 30 pounds per cubic foot, an elongation of greater than or equal to about 50% and a compression set at 50% of less than or equal to about 30.
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24. A method of manufacturing a polymeric foam comprising:
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metering a composition comprising a polysiloxane polymer having hydride substituents, flame retardant particles substantially coated with a conductive metal, a blowing agent and a catalyst into a mold or a continuous coating line; and
foaming the composition in the mold or on the continuous coating line.
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25. A method of manufacturing an elastomer comprising:
mixing a composition comprising an isocyanate, an active hydrogen-containing compound, flame retardant particles substantially coated with a conductive metal, and optionally a catalyst, where the mixed composition is substantially free of frothing;
casting the mixed composition onto a substrate; and
curing the mixed composition.
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26. A method of manufacturing a polymeric elastomer comprising:
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mixing a composition comprising an essentially linear single site initiated polyolefin, flame retardant particles substantially coated with a conductive metal, and an optional curing agent, wherein curing of the composition begins after mixing; and
optionally post-curing the composition using heat or electromagnetic radiation.
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27. A method of manufacturing a polymeric elastomer comprising:
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mixing a composition comprising a polysiloxane polymer having hydride substituents, flame retardant particles substantially coated with a conductive metal, and a catalyst;
contacting the composition onto a release liner; and
curing the composition at or above ambient temperature.
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28. A method of manufacturing a polymeric elastomer comprising:
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mixing a composition comprising a polysiloxane polymer having hydride substituents, flame retardant particles substantially coated with a conductive metal, and a catalyst;
contacting the composition onto a moving carrier to form a layer;
contacting a second carrier to the exposed face of the composition layer to form a sandwiched mixture;
pulling the sandwiched mixture through a coater;
curing the composition in the sandwiched mixture at or above ambient temperature; and
optionally post-curing the composition in the sandwiched mixture.
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Specification