MASTERBATCH, PREFORM, BLOW-MOLDED BOTTLE, BEVERAGE PRODUCT, FILM, METHOD FOR PRODUCING PREFORM, AND METHOD FOR PRODUCING BLOW-MOLDED BOTTLE

• Main Authors: SHIRAHAMA, Rie, YAMAGUCHI, Yohei, KATO, Satoshi, NAKAYA, Masaki, OOKUBO, Tatsunori, SATO, Takashi
• Format: Patent
• Language: English; French; German
• Published: 30.10.2024
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; GENERAL PROCESSES OF COMPOUNDING; HANDLING THIN OR FILAMENTARY MATERIAL; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

An object of the present disclosure is to provide a masterbatch, a preform, a blow-molded bottle, a film, a beverage product, a method for forming a preform, a method for producing a blow-molded bottle and a method for producing a film, which realize stable blend molding of PET and PEF without prolonging molding time and achieve fine quality of a resulting molded object. A masterbatch according to the disclosure includes: a polyester resin (A) containing a structural unit derived from terephthalic acid (A-1) and a structural unit derived from an aliphatic diol (A-2); and a polyester resin (B) containing a structural unit derived from 2,5-furandicarboxylic acid (B-1) and a structural unit derived from 1,2-ethanediol (B-2), in which the proportion is the polyester resin (B), determined by (Expression 1), of 45 mass% to 90 wt% and an intrinsic viscosity (IV value), measured under (Condition 1), is 0.50 dl/g to 1.20 dl/g.