ETHYLENE/VINYL ALCOHOL COPOLYMER COMPOSITION, PELLET, AND MULTILAYER STRUCTURE

• Main Authors: TAKESHITA KEISUKE, NAKAJIMA TAKUYA, NISHIMURA DAICHI
• Format: Patent
• Language: Chinese; English
• Published: 14.02.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; 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

Provided is an ethylene/vinyl alcohol copolymer composition which has satisfactory ultraviolet absorption capacity without any known ultraviolet absorber, has excellent thermal stability, and is inhibited from taking a color. The ethylene/vinyl alcohol copolymer composition comprises an ethylene/vinyl alcohol copolymer (A), a styrene derivative (B), and an iron compound (C), wherein the iron compound (C) is contained in an amount of 0.01-5 weight ppm, in terms of metal amount, of the ethylene/vinyl alcohol copolymer composition. 作为即使不配混公知的紫外线吸收剂也具有良好的紫外线吸收能力、热稳定性优异、着色被抑制的乙烯-乙烯醇系共聚物组合物，提供一种乙烯-乙烯醇系共聚物组合物，其为含有乙烯-乙烯醇系共聚物(A)、苯乙烯衍生物(B)和铁化合物(C)的乙烯-乙烯醇系共聚物组合物，上述铁化合物(C)的含量相对于乙烯-乙烯醇系共聚物组合物的单位重量、以金属换算计为0.01～5ppm。