Fine fiber media layer
First Claim
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1. A filter media comprising a fine fiber layer and a filtration substrate layer, the fine fiber layer having a thickness no greater than 30 microns and a basis weight of about 0.5 to 50 g-m−
- 2, the fine fiber comprising a fiber size of about 0.01 to 0.5 micron and after exposure to air at 140°
F. and 100% relative humidity for 16 hours at least 50% of the fiber remains substantially unchanged for filtration.
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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.
189 Citations
7 Claims
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1. A filter media comprising a fine fiber layer and a filtration substrate layer, the fine fiber layer having a thickness no greater than 30 microns and a basis weight of about 0.5 to 50 g-m−
- 2, the fine fiber comprising a fiber size of about 0.01 to 0.5 micron and after exposure to air at 140°
F. and 100% relative humidity for 16 hours at least 50% of the fiber remains substantially unchanged for filtration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- 2, the fine fiber comprising a fiber size of about 0.01 to 0.5 micron and after exposure to air at 140°
Specification