FIBROUS SHEET FILTER MATERIAL FOR LIQUIDS Russian patent published in 1998 - IPC

FIELD: FILTER MATERIALS. SUBSTANCE: material is designed for wine, bear-sweet, and spirits beverage production. Material contains cellulose, aluminum hydroxide with average particle size 5 to 20 mcm and polymer binder Ц mixture of polyamide-epichlorohydrin resin and sodium carboxymethylcellulose at ratio from 3:1 to 9:1, respectively. EFFECT: improved operational characteristics due to increased throughout capacity and mechanical strength in wet state; increased ecological purity of material. 1 tbl, 3 ex