Patent ID: 8293107
Filing Date: 2012-10-23
Classification: B01D,B01J,D01D,Y10T

Abstract:
1. An absorptive material with an enhanced rate and capacity of absorption comprising at least one hollow fiber having at least one axial slit-shaped capillary along a substantial section of said fiber's length that provides an entrance from the fiber exterior to at least one internal fiber compartment; wherein said at least one slit-shaped axial capillary is formed by opposing overlapping, parallel, converging, or diverging capillary walls; the width of said capillary being proportional to the degree of the overlapping of the opposing walls and substantially greater than the separation distance between the opposing walls of said capillary; the interior surface of each said opposing wall of said capillary formed from either an interior or exterior wall of said hollow fiber; wherein the interior wall surfaces of the at least one axial slit-shaped capillary, the wall surface of the at least one internal fiber compartment as well as the at least one exterior surface of the hollow fiber each having a surface characteristic selected from the group consisting of hydrophilic, oleophilic, hydrophobic and oleophobic.