RESIN MOLDED BODY EXCELLENT IN DISCOLORATION RESISTANCE

• Main Authors: ITO YUSUKE, OTSUKI AZUSA, UEDA KOSUKE, ATSUGI MASASHI, SAITO TAKESHI, TANABE TOSHIHIRO, TASHIRO HIROKI, ISHIHARA TAKAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 21.02.2019
• 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; 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

To provide a molded body consisted of a thermoplastic resin blending a metal or a metal compound performing coloration by a reaction with a corrosive gas or a volatile sulfur compound, such as a container or the like having a layer consisting of an oxygen absorbing resin composition, in which discoloration is suppressed even when exposed to retort sterilization.SOLUTION: There is provided a molded body consisting of a thermoplastic resin in which a metal or a metal compound consisting of at least one kind selected from Zn, Sn and Mn, and a metal or a metal compound which is a metal or a metal compound other than the 3 kinds and performs coloration by a reaction with a corrosive gas or a volatile sulfur compound are added, in which the 3 kinds of metals or metal compounds function as a scavenger of the corrosive gas or the volatile sulfur compound.SELECTED DRAWING: None 【課題】 酸素吸収性樹脂組成物から成る層を有する容器等のように、腐食性ガスや揮発性硫黄化合物と反応して呈色する金属又は金属化合物が配合されている熱可塑性樹脂から成る成形体において、レトルト殺菌等に賦されても変色が抑制されている成形体を提供することである。【解決手段】 Ｚｎ，Ｓｎ，Ｍｎから選択される少なくとも１種から成る金属又は金属化合物と、該３種以外の金属又は金属化合物であって腐食性ガスもしくは揮発性硫黄化合物と反応して呈色する金属又は金属化合物とが添加されている熱可塑性樹脂から成る成形体であって、前記３種の金属又は金属化合物が前記腐食性ガスもしくは揮発性硫黄化合物の捕捉剤として機能することを特徴とする。【選択図】なし