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US 7,407,701 B2Granted
Lofted composite with enhanced air permeability
AssigneeKX Technologies LLC
InventorRichard D Kendrick
Life of this patent
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Abstract
A composite of the present invention comprises a substrate having deposited on a surface thereof a dry mixture of active particles, lofting fibers, and binder particles. The composite has increased air permeability and lower air resistance than prior art composites that do not incorporate lofting fibers.
Claims20
A composite comprising:
- a discrete substrate having a first surface;
- a dry mixture on the first surface of said substrate, said dry mixture comprising active particles, binder particles, and lofting fibers having a denier of greater than 20,
- wherein said binder particles coalesce the active particles and the lofting fibers to each other and to said substrate.
A composite comprising:
- a discrete substrate having a first surface;
- a dry mixture deposited on the first surface of said substrate, said dry mixture comprising active particles, binder particles, and lofting fibers having a denier of greater than 20,
- wherein said composite is heated to a softening temperature of the binder particles, but below a melting temperature of the active particles and the lofting fibers, such that the softened binder particles coalesce the active particles and the lofting fibers to each other and to said substrate;
- and
- said composite having an air permeability of greater than about 200 scfm.
2 more elements
Dependencies are inferred from the claim text.