RESIN COMPOSITION, FILM AND MULTILAYER STRUCTURE

• Main Authors: NAKAJIMA TAKUYA, TAKESHITA KEISUKE, UCHIDA HISAO, KANDA TAIJI, KOBAYASHI RYOHEI
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The present invention provides a resin composition described below and the like as a resin composition that has excellent gas barrier properties, especially oxygen barrier properties under high humidity conditions. A resin composition which contains a polyvinyl alcohol resin, and which is characterized in that if solid-state NMR is measured with respect to the resin composition under the conditions described below, T1C of the carbon atom of methylene (44-46 ppm) (13C spin-lattice relaxation time) is composed of two components including one component of 50 seconds or less. Conditions: The resin composition is filled into a 4 mm[phi] zirconia rotor, and is subsequently spun using solid-state NMR in a 9.4 T static magnetic field (1H: resonance frequency of 400 MHz, 13C: resonance frequency of 100 MHz) at 23 DEG C under a magic angle spinning condition of 5,000 Hz. 提供下述等作为高湿度下的气体阻隔性、特别是氧气阻隔性优异的树脂组合物。一种树脂组合物，其特征在于，包含聚乙烯醇系树脂，对上述树脂组合物在下述条件下测定固体NMR时，用T1C(13C自旋-晶格弛豫时间)分离亚甲基碳(44～46ppm)而得到的成分由2成分构成，且50秒以下的成分为1个。条件：将树脂组合