Patent ID: 8048948

Claim:
A method for preparing a composition having a mesoporous structure using incompatible resins and filler, comprising: (a) supplying incompatible resins and filler into a cylinder for melt-kneading from a material feed port of the cylinder provided at the rear end of a feedback screw installed in the cylinder; (b) feeding the incompatible resins and filler from the rear end of the screw to the front end of the screw by rotating the screw while melt-kneading the incompatible resins and filler in the cylinder by rotating the screw, wherein the rotation speed of the screw is about 600 rpm to about 3,000 rpm and its shear rate is about 900 to about 4,500 sec−1, thereby forwarding the incompatible resins and filler to a sealed part of the cylinder; (c) trapping the incompatible resins and filler in a space formed between the sealed part and the front end of the screw of the cylinder; (d) returning the incompatible resins and filler toward the rear end of the screw through a lateral hole made in the center of the screw; (e) repeating steps (b) to (d) to circulate the incompatible resins and filler which have been melted and kneaded, thereby uniformly dispersing the filler in the incompatible resins to form a co-continuous structure of the incompatible resins, the size of which structure is controlled at a mesoscopic level (0.3 to 100 μm); and (f) removing one phase of the co-continuous structure to form a mesoporous structure comprised of another phase.