Patent ID: 7311209
Filing Date: 2007-12-25
Classification: B01D,D21H,Y10T

Abstract:
1. A filter material for infused beverages comprising at least one fiber layer and a plurality of microcapsules or microfibers dispersed therein, each of said microcapsules comprising a protective sheath and a phase change material within an interior of said sheath, and each of said microfibers comprising a hollow fiber and said phase change material filled therein; said phase change material having a phase change temperature in a range from 0 to 120° C. for a phase change from solid to liquid, said filter material having a weight per unit area between 8 and 90 g/m 2 , wherein when used in making an infused beverage, said filter material enables a substantially faster release of an infused material through said filter material than said fiber layer without said microcapsules or said microfibers.