Patent ID: 6924028
Filing Date: 2005-08-02
Classification: B01D,C08L,D01D,D01F,D04H,Y10S,Y10T

Abstract:
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 C (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.