Multilayered composite
AssigneeZeus Co., Ltd.
InventorsBruce L. Anneaux, Robert L. Ballard, David P. Garner
Life of this patent
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Abstract
In accordance with certain embodiments of the present disclosure, a process for forming a multilayered electrospun composite is provided. The process includes forming a dispersion of polymeric nanofibers, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs. Nanofibers from the dispersion are electrospun onto a first ePTFE layer. A second ePTFE layer is applied onto the nanofibers to form a composite structure. The composite structure is heated.
Claims20
A process for forming a multilayered electrospun composite structure comprising:
- forming a dispersion of polymeric nanofibers, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs;
- electrospinning nanofibers from the dispersion onto a first ePTFE layer;
- applying a second ePTFE layer onto the nanofibers to form a composite structure;
- and
- heating the composite structure.
A process for forming a multilayered electrospun composite structure comprising:
- electrospinning a dispersion having a viscosity of at least about 50,000 cPs and comprising polymeric nanofibers, a fiberizing polymer, and a solvent, onto a first side of an ePTFE layer;
- electrospinning a dispersion having a viscosity of at least about 50,000 cPs and comprising polymeric nanofibers, a fiberizing polymer, and a solvent, onto a second side of the ePTFE layer to form a composite structure;
- and
- heating the composite structure.
The process of claim 11, wherein the dispersion comprises about 59-61 weight percent of PTFE.
A process for forming a multilayered electrospun composite structure comprising:
- forming a polyurethane solution;
- electrospinning nanofibers from the solution onto a first ePTFE layer;
- applying a second ePTFE layer onto the nanofibers to form a composite structure;
- and
- heating the composite structure.
A process for forming a multilayered electrospun composite structure comprising:
- forming a dispersion of polymeric nanofibers, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs;
- electrospinning nanofibers from the dispersion onto a first ePTFE layer;
- applying a substrate onto the nanofibers to form a composite structure;
- and
- heating the composite structure.
Dependencies are inferred from the claim text.