MANUFACTURING METHOD FOR UNEVEN STRUCTURE BODY

• Main Authors: YABU Hiroshi, ITO Koju, SAITO Yuta
• Format: Patent
• Language: English; French; German
• Published: 24.04.2019
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SPRAYING OR ATOMISING IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

A protrusion/recess structure in which fine particles will not drop easily and which will not be deformed easily is provided, and a producing method for the same is provided. In a protrusion/recess structure (10, 90, 95, 100, 105, 120) , protrusions or recesses are formed in a surface. The protrusion/recess structure (10, 90, 95, 100, 105, 120) is formed from plural fine particles (14) and an amphipathic high molecular compound (15) having a catechol group. The high molecular compound (15) at least partially coats a surface of the fine particles (14), to adhere the fine particles (14) to one another. A diameter of the recesses in the protrusions or recesses is larger than a diameter of the fine particles (14). Cast film (44) is formed from solution containing the fine particles (14) and the high molecular compound (15) having the catechol group. Condensation on the cast film (44) is performed, and organic solvent and water droplets (408) created by the condensation are evaporated to produce the protrusion/recess structure (10, 90, 95, 100, 105, 120).