Cut resistant non-woven fabrics
AssigneeHoechst Celanese Corporation
InventorsRobert Bruce Sandor, Michele C. Carter, Gunilla E. Gillberg-LaForce, William F. Clear, John A. Flint, Herman Leslie Lanieve, Scott W. Thompson, Etheridge Odell Oakley, Jr.
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Abstract
A fiber having increased cut resistance is made from a fiber-forming polymer and a hard filler having a Mohs Hardness Value greater than about 3. The filler is included in an amount of about 0.05% to about 20% by weight. In preferred embodiments, the fiber-forming polymer is poly(ethylene terephthalate) or a liquid crystalline polyester comprising monomer units derived from 6-hydroxy-2-naphthoic acid and 4-hydroxybenzoic acid. Preferred fillers include tungsten and alumina.
Claims14
A non-woven fabric comprising a fiber made from melt-processable polymer and a hard filler distributed uniformly in said fiber, said fiber having a denier in the range of about 1 to about 50 dpf, said filler having a Mohs Hardness Value greater than 3, said filler being present in an amount of about 0.1% to about 20% by weight, said filler having an average particle size in the range of about 0.25 microns to about 10 microns, wherein said filler is included in sufficient quantity to improve the cut resistance of said non-woven fabric by at least 20% compared with a fabric comprising the same fiber without said filler, as measured by the Ashland Cut Protection Performance Test.
Dependencies are inferred from the claim text.