US 2009/0020221 A1 · Method for Producing Self-Assembled Construction

Abstract

A liquid (14) is prepared by dissolving and dispersing poly-ε-caprolactone, polyacrylamide and fine particles in chloroform. Viscosity of the liquid (14) is adjusted. Further, a substrate (30) is produced. A frame (31) is provided such that a thickness t1 is 0.5 mm. The liquid (14) is cast onto the casting area (30a) surrounded by the frame (31). A casting film (21) is formed by moving a scraper blade (33) and leveling the surface of the cast liquid (14). A plurality of droplets are formed in a systematic arrangement in the casting film (21) through condensation on the casting film (21). The droplets are evaporated by drying to form pores. Thus, the self-assembled construction having a honeycomb structure with a thickness of 5 μm and a pore diameter of 5 μm is obtained.

Claims36

Dependent claims

A producing method for self-assembled construction comprising the steps of:

forming a casting film by casting a liquid including an organic solvent and a polymer compound onto a support, a viscosity of said liquid is in a range of not less than 1×10−4 Pa·s and not more than 10 Pa·s, a thickness of said casting film immediately after being formed is in a range of not less than 0.05 mm and not more than 1.5 mm;
forming a plurality of droplets in said casting film;
evaporating said organic solvent and said droplets from said casting film for forming pores at positions of said droplets;
and
peeling off said casting film in which said pores are formed from said support.

2 more elements

Dependencies are inferred from the claim text.

Method for Producing Self-Assembled Construction

Life of this patent

Method for Producing Self-Assembled Construction

Life of this patent

Abstract

Claims36