Water-swellable composite sheet of microfibers of PTFE and hydro

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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Details

428422, 428903, 128156, 604367, 604372, B32B 516, A61F 1318, A47C 2106

Patent

active

044606427

ABSTRACT:
A composite sheet material is highly absorbent toward aqueous fluids including blood and exudate and comprises a polytetrafluoroethylene fibril matrix and hydrophilic absorptive particles enmeshed in the matrix. The composite sheet material is useful as a wound dressing, as a drying material for non-aqueous solvents, and as a chromatographic material.

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