METHOD FOR PRODUCING POROUS MOLDED ARTICLE

• Main Authors: YABU, Hiroshi, OKU, Keisuke, ITO, Koju, UCHIDA, Yoshiaki
• Format: Patent
• Language: English; French; German
• Published: 10.03.2021
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

Provided is a method of producing a porous molded body capable of efficiently producing a porous molded body that is constituted of a hydrophilic material and has void portions densely arranged with regularity.A molding device (22) produces a porous film (10) from a molding material (16) which is an emulsion. In a case where a volume of a dispersed phase (31) is X1 and a volume of a continuous phase (32) is X2, the molding material (16) has a value of X1/(X1 + X2) within a range of 0.5 or more and 0.9 or less. In the molding material (16), a specific gravity of the dispersed phase (31) is greater than a specific gravity of the continuous phase (32). The molding material (16) includes a water phase containing a curable compound as the continuous phase (32), and forms a liquid film (76) on a support (71). Thereafter, the curable compound in the liquid film (76) is cured. After curing, the dispersed phase (31) is removed.