Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
First Claim
Patent Images
1. A fine fiber layer comprising a fiber comprising an addition polymer and about 2 to 25 wt.-% a hydrophobic additive in the form of a coating on the fine fiber, the fine fiber having a diameter of about 0.1 to 0.5 microns the fine fiber layer having a thickness of less than about 30 microns with a basis weight of about 0.01 to 240 micrograms-cm−
- 2 such that after exposure to 140°
F. air and a relative humidity of 100% the fine fiber layer retains greater than 50% of the fiber unchanged.
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Accused Products
Abstract
Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation of filter materials.
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Citations
15 Claims
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1. A fine fiber layer comprising a fiber comprising an addition polymer and about 2 to 25 wt.-% a hydrophobic additive in the form of a coating on the fine fiber, the fine fiber having a diameter of about 0.1 to 0.5 microns the fine fiber layer having a thickness of less than about 30 microns with a basis weight of about 0.01 to 240 micrograms-cm−
- 2 such that after exposure to 140°
F. air and a relative humidity of 100% the fine fiber layer retains greater than 50% of the fiber unchanged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- 2 such that after exposure to 140°
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9. A fine fiber layer comprising a fiber comprising an addition polymer and about 2 to 25 wt.-% a hydrophobic additive in the form of a coating on the fine fiber, the fine fiber having a diameter of about 0.01 to 0.2 micron the fiber layer having a thickness of less than about 30 microns with a basis weight of about 0.01 to 240 micrograms-cm−
- 2 such that after exposure to 140°
F. air and a relative humidity of 100% the fine fiber layer retains greater than 50% of the fiber unchanged. - View Dependent Claims (10, 11, 12, 13, 14, 15)
- 2 such that after exposure to 140°
Specification