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    • 7. 发明申请
    • LAMINATED AND THERMOFORMED ARTICLES CONTAINING OXYGEN SCAVENGER
    • 包含氧气扫描器的层压和热成型制品
    • US20100282633A1
    • 2010-11-11
    • US12777835
    • 2010-05-11
    • Chieh-Chun ChauSamuel A. IncorviaThomas H. PowersStanislav E. Solovyov
    • Chieh-Chun ChauSamuel A. IncorviaThomas H. PowersStanislav E. Solovyov
    • B65D81/24B32B37/14B65D90/02
    • C22C1/002
    • A well dispersed oxygen scavenging particulate compounded in a polymer matrix. The oxygen scavenging formulation consists of iron powder with a mean particle sizes within 1-25 um and pre-coated with at least one or more activating and acidifying powdered compounds, usually in the form of solid organic and inorganic salts of alkaline and alkaline earth metals such as sodium chloride and sodium bisulfate. The pre-coated iron particulate is dispersed into a polymer resin by using a conventional melt processing method such as twin-screw extrusion. The oxygen scavenging compound is mixed with polymer pellets in the solid state prior to melting. The polymer resin pellets and the coated iron powder are preferably treated with a surfactant in the dry state to help dispersing the iron/salt powder with the resin pellets. The melt extruded compounds are pelletized and kept in the dry state to prevent premature activation.
    • 在聚合物基质中混合的良好分散的氧清除颗粒。 除氧制剂由平均粒度在1-25μm之间的铁粉组成,并预先涂覆有至少一种或多种活化和酸化粉末化合物,通常为碱金属和碱土金属的固体有机和无机盐形式 如氯化钠和硫酸氢钠。 通过使用常规的熔融加工方法如双螺杆挤出将预涂的铁颗粒分散到聚合物树脂中。 氧气清除化合物在熔融前以固体状态与聚合物颗粒混合。 聚合物树脂粒料和被覆铁粉末优选用干燥状态的表面活性剂处理以帮助用树脂粒子分散铁/盐粉末。 将熔融挤出的化合物造粒并保持在干燥状态以防止过早活化。