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US 10,132,010 B2Granted
UHMW PE fiber and method to produce
AssigneeHoneywell International Inc.
InventorsHenry Gerard Ardiff, Ralf Klein, John Armstrong Young, Thomas Tam
Life of this patent
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Abstract
Processes for preparing ultra-high molecular weight polyethylene yarns, and the yarns and articles produced therefrom. The surfaces of highly oriented yarns are subjected to a treatment that enhances the surface energy at the yarn surfaces and are coated with a protective coating immediately after the treatment to increase the expected shelf life of the treatment.
Claims20
A process comprising:
- a) providing one or more highly oriented fibers, each of said highly oriented fibers having a tenacity of greater than 27 g/denier and having surfaces that are covered by a fiber surface finish;
- b) washing the fibers to remove only a portion of the fiber surface finish from the fiber surfaces wherein a residual fiber surface finish remains on the fiber surfaces, wherein from 50% to 99.0% of the fiber surface area is exposed and not covered by the residual fiber surface finish;
- c) corona treating or plasma treating the exposed fiber surfaces under conditions effective to enhance the surface energy of the fiber surfaces;
- and
- d) applying a protective coating onto at least a portion of the treated fiber surfaces on top of said residual fiber surface finish to thereby form coated, treated fibers, wherein the protective coating comprises 3% by weight or less, based on the weight of the fiber plus the weight of the protective coating, and wherein the protective coating is applied to individual fibers.
2 more elements
A process comprising:
- a) providing one or more highly oriented fibers, each of said highly oriented fibers having a tenacity of greater than 27 g/denier and said fibers having a residual fiber surface finish on their surfaces wherein from 50% to 99.0% of the fiber surface area is exposed and not covered by the residual fiber surface finish;
- b) treating the exposed fiber surfaces under conditions effective to enhance the surface energy of the fiber surfaces;
- and
- c) applying a protective coating onto at least a portion of the treated fiber surfaces on top of said residual fiber surface finish to thereby form coated, treated fibers, wherein the protective coating comprises less than about 3% by weight or less based on the weight of the fiber plus the weight of the protective coating and wherein the protective coating is applied to individual fibers.
1 more element
Dependencies are inferred from the claim text.