MASTER BATCH COMPRISING METAL COMPOUND AND REACTIVE THERMOPLASTIC RESIN, AND OXYGEN-ABSORBING MOLDED ARTICLE USING THE SAME

• Main Author: OTAKI, RYOJI
• Format: Patent
• Language: English; Korean
• Published: 08.12.2004
• Edition: 7
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; 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; HANDLING THIN OR FILAMENTARY MATERIAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PURPOSE: Provided a master batch having excellent moldability which is capable of being efficiently formed into an oxygen-absorbing molded article with excellent oxygen-absorbing ability, and a method of manufacturing an oxygen-absorbing molded article using the same. CONSTITUTION: The master batch comprises at least two components of a metal compound (B) and a reactive thermoplastic resin (C). Particularly, the metal compound (B) contains at least one metal selected from the group consisting of transition metals, manganese, copper and zinc and is an oxidation accelerator of a deoxidizing polyamide (A) which is obtained by polycondensing a diamine component containing m-xylylenediamine in 70 mol% or more with a dicarboxylic acid component containing adipic acid in 50 mol% or more. And the metal compound is present at a concentration of 0.01-5 wt% in terms of metal atom. The reactive thermoplastic resin (C) has an internal bond and/or a reactive functional group which are reactive with an amide bond and/or a reactive functional group in the deoxidizing polyamide (A) upon melt-mixing, is resistant to oxidation by the action of the metal compound (B). The master batch is melt-mixed with the deoxidizing polyamide (A) to form a molded article.