ABSORBENT FOAM MATERIALS FOR Aqueous FLUIDS OBTAINED FROM HIGH INTERNAL PHASE EMULSIONS THAT HAVE VERY HIGH OIL WATER RELATIONSHIPS.

摘要

COLAPSED FOAM ABSORBENT MATERIALS OF LOW DENSITY, WHEN AFTER BEING CONTACTED WITH WATERPROOF FLUIDS, IN PARTICULAR WITH URINE, THESE FLUIDS CAN BE EXPANDED AND ABSORBED. THESE LOW DENSITY FOAMS TYPICALLY HAVE AN EXPANDED THICKNESS FROM APPROXIMATELY 6 TO APPROXIMATELY 10 TIMES THE FOAM THICKNESS IN THEIR COLLECTED STATE. THESE LOW DENSITY FOAMS ARE PREPARED BY POLYMERIZATION OF HIGH INTERNAL PHASE EMULSIONS (HIPE), IN WHICH THE PROPORTION BETWEEN THE VOLUME AND THE WEIGHT OF THE WATERPROOF PHASE IS IN THE INTERVAL AFTER APPROXIMATE 55 APPROXIMATELY 100: 1.