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    • 7. 发明申请
    • A CROSSLINKABLE POLYETHYLENE COMPOSITION, METHOD OF MAKING THE SAME, AND ARTICLES MADE THEREFROM
    • 可交联聚乙烯组合物,其制备方法及其制备方法
    • WO2008097732A1
    • 2008-08-14
    • PCT/US2008/051991
    • 2008-01-25
    • DOW GLOBAL TECHNOLOGIES INC.CHAUDHARY, BharatKLIER, John
    • CHAUDHARY, BharatKLIER, John
    • C08K5/00C08K5/01C08K5/14C08L23/04
    • C08K5/14C08K5/0025C08K5/01C08L51/06C08L23/04C08L2666/02
    • The instant invention is a crosslinkable polyethylene composition, a method of making the same, and articles made therefrom. The crosslinkable polyethylene composition according to instant invention includes a polyethylene component, a crosslinking agent, and a crosslinking coagent. The crosslinking agent is an organic peroxide, and the crosslinking coagent is an alkadiene, alkatriene, or alkatetraene compound comprising at least two terminal carbon-carbon double bonds. The crosslinkable polyethylene composition may, optionally, further include a scorch inhibitor, a cure booster, a stable free radical, one or more conventional additives, blends thereof, and/or combinations thereof. The method for producing a crosslinkable polyethylene composition according to instant invention includes the steps of: (1) providing a polyethylene component; (2) providing a crosslinking agent, wherein the crosslinking agent is an organic peroxide; (3) providing a crosslinking coagent, wherein the crosslinking coagent is an alkadiene, alkatriene, or alkatetraene compound comprising at least two terminal carbon-carbon double bonds; (4) melt blending the a polyethylene component, the crosslinking agent, and the crosslinking coagent at a temperature in the range of less than the decomposition temperature of the crosslinking agent; and (5) thereby forming the crosslinkable polyethylene composition. The article according to instant invention includes the crosslinked product of a polyethylene component; a crosslinking agent, wherein the crosslinking agent is an organic peroxide; and a crosslinking coagent, wherein the crosslinking coagent is an alkadiene, alkatriene, or alkatetraene compound comprising at least two terminal carbon-carbon double bonds.
    • 本发明是可交联聚乙烯组合物,其制备方法和由其制成的制品。 根据本发明的可交联聚乙烯组合物包括聚乙烯组分,交联剂和交联助剂。 交联剂是有机过氧化物,交联助剂是包含至少两个末端碳 - 碳双键的链二烯,亚烷基或烷基四烯化合物。 可交联聚乙烯组合物可以任选地进一步包括焦烧抑制剂,固化促进剂,稳定的自由基,一种或多种常规添加剂,其共混物和/或其组合。 根据本发明的可交联聚乙烯组合物的制造方法包括以下步骤:(1)提供聚乙烯组分; (2)提供交联剂,其中所述交联剂是有机过氧化物; (3)提供交联助剂,其中所述交联助剂是包含至少两个末端碳 - 碳双键的链二烯,亚烷基或烷基四烯化合物; (4)在小于交联剂的分解温度的范围内的温度下熔融共混聚乙烯组分,交联剂和交联助剂; 和(5),从而形成可交联聚乙烯组合物。 根据本发明的制品包括聚乙烯组分的交联产物; 交联剂,其中所述交联剂是有机过氧化物; 和交联助剂,其中所述交联助剂是包含至少两个末端碳 - 碳双键的链二烯,亚烷基或烷基四烯化合物。