OPEN-CELL FOAM, ARTICLE HAVING THE SAME, METHOD FOR PRODUCING THEM, AND METHOD FOR CLEANING OF SURFACE USING THE OPEN-CELL FOAM

摘要

5 to 1000 kg / m ³ range of the density, 1 ㎛ to 1 mm range of the average pore diameter of 0.1 to 50 m ² / g range of the BET specific surface area and 50 mm in thickness and 2000 Hz of frequency at 50% or more sound absorbing a modified open-cell foam having an argument, ; Modified to include the fixed particles (b) having the modified open-cell foams are unmodified open cells having an average diameter (number average) 5 nm to 900 nm range in the range of 1 to 4000 ppm based on the weight of the foam the open cell foam is disclosed. ; Open-cell foam