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    • 2. 发明申请
    • THICK BLOWN FILMS
    • 厚薄膜
    • US20130022804A1
    • 2013-01-24
    • US13515828
    • 2011-01-11
    • Nicolas MazzolaJorge GomesMaria PollardMichael Turner
    • Nicolas MazzolaJorge GomesMaria PollardMichael Turner
    • C08L23/06
    • C08L23/0815C08F8/30C08F110/02C08J5/18C08J2323/36C08K5/3435C08L2205/025Y10T428/139C08L23/36C08L2023/44C08L2666/04C08F2500/03C08F2500/11C08F2500/12C08F2500/17
    • The present invention is a film having a thickness greater than 100 microns comprising from 10 to 100 percent by weight of a polyethylene polymer made by the process of a) selecting a target polyethylene resin having a density, as determined according to ASTM D792, in the range of from 0.90 g/cm3 to 0.955 g/cm3, and a melt index, as determined according to ASTM D1238(2.16 kg, 190 C), in the range of from 0.01 g/10 min to 10 g/10 min; b) reacting said target polyethylene with an alkoxy amine derivative in an amount less than 900 parts derivative per million parts by weight of total polyethylene resin under conditions sufficient to increase the melt strength of the target polyethylene resin; and c) forming a thick film from the modified target resin. The present films include those which can achieve similar processability as those containing unmodified linear polyethylene despite having at least 10% less LDPE resins in the formulation.
    • 本发明是一种厚度大于100微米的薄膜,其包含10-100%重量的聚乙烯聚合物,该聚乙烯聚合物是通过以下方法制备的:a)选择具有根据ASTM D792测定的密度的目标聚乙烯树脂 范围为0.90g / cm 3至0.955g / cm 3,根据ASTM D1238(2.16kg,190℃)测定的熔体指数为0.01g / 10min至10g / 10min; b)在足以增加目标聚乙烯树脂的熔体强度的条件下,使所述目标聚乙烯与总聚乙烯树脂的百万分之一重量份衍生物的量小于900份的衍生物反应所述目标聚乙烯; 和c)从改性目标树脂形成厚膜。 本发明的膜包括那些可以实现与含有未改性的线性聚乙烯相似的加工性的那些,尽管配方中LDPE树脂的含量至少降低10%。