Method of manufacturing a material having a fine structure

Abstract

Molded products may be made by a process comprising preparing a structure comprising a block copolymer or a graft copolymer having two or more phases, wherein each phase is comprised of polymer chains, decomposing the polymer chains of at least one phase of the structure, and cleaning the structure with a supercritical fluid or a sub-critical fluid, thereby removing the decomposed polymer chains from the structure. Molded products made by this method have very low levels of residual solvents, can be manufactured at a relatively low temperature in a short period of time without using large amounts of organic solvents, and without discharging large amounts of liquid waste.

Dependencies are inferred from the claim text.