METHOD FOR PRODUCING GRADIENT FOAMED MOLDING

• Main Authors: IINO HIROYOSHI, SHINOZAKI MIZUKI, ICHIKAWA KENTARO
• Format: Patent
• Language: English; Japanese
• Published: 02.11.2023
• 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; 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

To optimally produce a gradient foamed molding with a foaming rate to change in a gradient manner between opposite principal faces, while controlling its gradient foaming.SOLUTION: A foamer-impregnated molding is prepared that has been impregnated with a foamer. The foamer-impregnated molding has opposite principal faces, one of which is restrained. The foamer-impregnated molding is heated so that there is a temperature difference between the principal faces of the foamer-impregnated molding. As a result of heating, the foamer-impregnated molding is foamed in a gradient manner and then solidified by cooling.SELECTED DRAWING: Figure 1 【課題】対向する主面間で気泡率が傾斜的に変化する傾斜発泡成形体を、その傾斜発泡を制御しつつ良好に製造する。【解決手段】発泡剤を含浸させた発泡剤含浸成形体を用意し、当該発泡剤含浸成形体の対向する主面のうち一方側を拘束し、当該発泡剤含浸成形体の主面間で温度差があるように、当該発泡剤含浸成形体を加熱することによって傾斜発泡させた後に、冷却固化する。【選択図】 図１