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    • 7. 发明授权
    • Ethylene alkyl acrylate copolymers with improved heat resistance
    • 乙烯丙烯酸烷基酯共聚物具有改善的耐热性
    • US07112624B2
    • 2006-09-26
    • US10466450
    • 2002-01-18
    • Joseph D. Domine
    • Joseph D. Domine
    • C08K5/01
    • C08F220/12C08F210/02C08F4/34C08F220/18C08F218/08C08F2500/12C08F2500/20C08F2500/17
    • The invention provides a copolymer of ethylene and at least 5 mol % of comonomer units derived from an alkyl acrylate or alkyl methacrylate, wherein the copolymer has a melt index of from 1 to 10,000 g/10 min, and a maximum peak melting temperature of at least 100° C. The alkyl group of the alkyl acrylate or alkyl methacrylate can be a linear or branched C1 to C12 group, particularly n-butyl. The copolymer shows increased heat resistance as characterized by a temperature required to melt 50% of the copolymer of at least 80° C., a temperature required to melt 80% of the copolymer of at least 100° C., a temperature required to melt 100% of the copolymer of at least 110° C. The invention further provides a process for copolymerizing ethylene and an alkyl acrylate or alkyl methacrylate comonomer.
    • 本发明提供乙烯与至少5mol%衍生自丙烯酸烷基酯或甲基丙烯酸烷基酯的共聚单体共聚物的共聚物,其中共聚物的熔体指数为1至10,000g / 10min,最大熔融温度为at 至少100℃。丙烯酸烷基酯或甲基丙烯酸烷基酯的烷基可以是直链或支链C 1至C 12 - 基团,特别是正丁基。 共聚物显示出增加的耐热性,其特征在于将50%的共聚物熔融至少80℃所需的温度,熔融80%共聚物至少100℃所需的温度,熔融所需的温度 100%的共聚物为至少110℃。本发明还提供了一种使乙烯和丙烯酸烷基酯或甲基丙烯酸烷基酯共聚单体共聚的方法。