Lock set structure
AssigneeThe Dow Chemical Company
InventorsFrancis P. McCullough, Jr., R. Vernon Snelgrove, Bhuvenesh C. Goswami
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Abstract
A process for producing an interlocked fibrous structure useful as a thermal insulating and/or sound absorbing structure comprising at least one batting of non-flammable carbonaceous fibers, by the steps comprising implanting said batting with non-carbonaceous polymeric fibers and then heat treating the structure in an inert atmosphere so as to transform said non-carbonaceous fibers into substantially permanently set carbonaceous fibers.
Claims5
A densified batting structure comprising a batting of linear and non-linear first carbonaceous fibers having an LOI value greater than 40, a reversible deflection ratio greater than 1.2:1 and an aspect ratio greater than 10:1 and a substantially permanently heat set non-flammable second carbonaceous fiber densifying said batting and locking said batting into a densified structure.
A densified batting structure comprising a batting of non-linear first carbonaceous fibers having a reversible deflection ratio greater than 1.2:1 and an aspect ratio greater than 10:1 and a heat set second carbonaceous fiber densifying said batting and locking said batting into a densified structure.
Dependencies are inferred from the claim text.