METHOD FOR PRODUCING FIBROUS CELLULOSE-CONTAINING COATING FILM, RESIN COMPOSITION, COATING FILM, AND LAMINATE

• Main Authors: NOGUCHI YUICHI, ZHAO MENGCHEN, TODOROKI YUSUKE
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

To provide a resin composition in which the separation of fine fibrous cellulose and resin can be suppressed, and a coating film excellent in adhesion to a base material can be formed.SOLUTION: The present invention relates to a method for producing fibrous cellulose-containing coating film, including a step of mixing a fibrous cellulose having a fiber width of 1000 nm or less and an organic onium, a step of mixing a mixture of fibrous cellulose obtained in the step of mixing, an organic solvent and a resin to yield a resin composition, and a step of applying the resin composition on the base material, and in which the fibrous cellulose has a phosphite group, or a substituent derived from a phosphite group, and the contained amount of fibrous cellulose in the resin composition is 1 mass% or more.SELECTED DRAWING: None 【課題】本発明は、微細繊維状セルロースと樹脂の分離を抑制し得る樹脂組成物であって、基材への密着性に優れた被膜を形成し得る樹脂組成物を提供することを課題とする。【解決手段】本発明は、繊維幅が１０００ｎｍ以下の繊維状セルロースと有機オニウムを混合する工程と、混合する工程で得られる繊維状セルロースの混合物、有機溶剤及び樹脂を混合して樹脂組成物を得る工程と、樹脂組成物を基材上に塗布する工程と、を含み、繊維状セルロースは亜リン酸基又は亜リン酸基に由来する置換基を有し、樹脂組成物中における繊維状セルロースの含有量は１質量％以上である、繊維状セルロース含有被膜の製造方法に関する。【選択図】なし