MANUFACTURING METHOD OF RESIN COMPOSITION, AND MANUFACTURING METHOD OF MOLDED BODY USING THE RESIN COMPOSITION

• Main Authors: OKAMOTO TAKEO, TAKEUCHI YOKO, TAKEZAWA YUTAKA, TAKIZAWA YOSHINOBU
• Format: Patent
• Language: English; Japanese
• Published: 31.10.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide a method for manufacturing a resin composition excellent in manufacturing cost, under a condition that various methods for dispersing a cellulose fiber in a thermoplastic resin or the like are considered conventionally, for example a method using an ion liquid is known, however the method needs a large amount of the ion liquid for dissolving the cellulose fiber in the ion liquid, it has high cost and is not suitable for industrial production.SOLUTION: There is provided a manufacturing method of a resin composition including melting and mixing a mixture containing a thermoplastic resin and a cellulose fiber in presence of an ion liquid, in which the added amount of the ion liquid is less than 20 pts.mass based on 100 pts.mass of the cellulose fiber.SELECTED DRAWING: None 【課題】 従来、セルロース繊維を熱可塑性樹脂等へ分散させる方法が種々検討されており、例えば、イオン液体を用いる方法が知られている。しかしながら、前記方法は、セルロース繊維をイオン液体に溶解するため多量のイオン液体が必要となることから、コストが高く、工業的な生産には適さない。そこで、本発明は、製造コストに優れる樹脂組成物を製造する方法を提供することを目的とする。【解決手段】 熱可塑性樹脂およびセルロース繊維を含む混合物を、イオン液体の存在下で溶融混練することを含む、樹脂組成物の製造方法であって、前記イオン液体の添加量が、セルロース繊維１００質量部に対して、２０質量部未満である、製造方法。【選択図】 なし