Moldable heat shield
AssigneeMilliken & Company
InventorsDavid Edward Wenstrup, Gregory J. Thompson, Timothy Mitchell Meade
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Abstract
A moldable heat shield with a needled nonwoven core layer and needled nonwoven shell layers. The core layer has a blend polyester staple fibers and low melt polyester staple fibers. The shell layers have a blend of staple fibers of partially oxidized polyacrylonitrile, and staple fibers of polyester, and staple fibers of a low melt polyester. The layers are needled together such that fibers from the core layer do not reach the outer surfaces of the shell layers. The shell layers are calendared such that an outer surface layer is formed thereon, which provides the moldable heat shield with a water and oil resistant surface.
Claims14
A moldable heat shield comprising a nonwoven composite of a core layer and outer shell layers adjoining the core layer, the core layer having entangled staple core fibers, the entangled core fibers comprising a blend of thermoplastic fibers and lower melting thermoplastic fibers, and the shell layers having entangled shell fibers, the entangled shell fibers comprising a blend of partially oxidized polyacrylonitrile staple fibers and thermoplastic staple fibers.
A moldable heat shield comprising a nonwoven composite of a core layer and outer shell layers adjoining the core layer, the core layer having entangled staple core fibers, the entangled core fibers comprising a blend of thermoplastic fibers and lower melting thermoplastic fibers, and the shell layers having entangled shell fibers, the entangled shell fibers comprising a blend of partially oxidized polyacrylonitrile staple fibers, thermoplastic staple fibers, and a lower melting thermoplastic staple fibers.
Dependencies are inferred from the claim text.