Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
First Claim
Patent Images
1. A fine fiber comprising a polymer selected from the group consisting of:
- (a) a blend of a hydrophobic additive and nylon 66, the fine fiber having a fiber size of about 0.01 to 0.5 micron;
(b) a blend of a hydrophobic additive and a polymer comprising a blend of at least two different nylon polymers, the fine fiber having a fiber size of about 0.01 to 0.5 micron;
(c) a blend of a hydrophobic additive and a nylon polymer comprising a nylon other than a copolymer formed from a cyclic lactam and a C6-10 diamine monomer or a C6-10 diacid monomer, the fine fiber having a fiber size of about 0.01 to 0.5 micron;
or (d) mixtures thereof;
wherein after exposure to air at 140°
F. and 100% relative humidity for 1 to 16 hours at least 50% of the fine fiber remains substantially unchanged.
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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.
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Citations
30 Claims
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1. A fine fiber comprising a polymer selected from the group consisting of:
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(a) a blend of a hydrophobic additive and nylon 66, the fine fiber having a fiber size of about 0.01 to 0.5 micron;
(b) a blend of a hydrophobic additive and a polymer comprising a blend of at least two different nylon polymers, the fine fiber having a fiber size of about 0.01 to 0.5 micron;
(c) a blend of a hydrophobic additive and a nylon polymer comprising a nylon other than a copolymer formed from a cyclic lactam and a C6-10 diamine monomer or a C6-10 diacid monomer, the fine fiber having a fiber size of about 0.01 to 0.5 micron;
or(d) mixtures thereof;
wherein after exposure to air at 140°
F. and 100% relative humidity for 1 to 16 hours at least 50% of the fine fiber remains substantially unchanged. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A fine fiber comprising a polymer selected from the group consisting of:
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(a) an acrylic polymer combined with either a crosslinking agent or a hydrophobic additive, the fiber having a fiber size of about 0.01 to 0.5 micron;
(b) a blend of a hydrophobic additive and a polymer comprising a blend of at least two different acrylic polymers, the fine fiber having a fiber size of about 0.01 to 0.5 micron; and
(c) mixtures thereof;
wherein after exposure to air at 140°
F. and 100% relative humidity for 1 to 16 hours at least 50% of the line fiber remain substantially unchanged. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A fine fiber comprising the reaction product of a polymer resin and a cross linking agent, the fiber having a fiber size of about 0.01 to 0.5 micron;
- wherein after exposure to air at 140°
F. and 100% relative humidity for 1 to 16 hours at least 50% of the fine fiber remains substantially unchanged. - View Dependent Claims (17, 18, 19, 20, 21, 22)
- wherein after exposure to air at 140°
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23. A fine fiber comprising an electrospun fiber comprising the reaction product of a polymer resin and a crosslinking agent;
- wherein alter exposure to air at 140°
F. and 100% relative humidity for 1 to 16 hours at least 50% of the fine fiber remains substantially unchanged. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
- wherein alter exposure to air at 140°
Specification