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    • 9. 发明申请
    • CLEAR GRAPHIC CLING FILMS
    • 清晰图形贴膜
    • WO2013002976A1
    • 2013-01-03
    • PCT/US2012/041021
    • 2012-06-06
    • DOW GLOBAL TECHNOLOGIES LLCWEAVER, Laura, BauerleMUNRO, Jeffrey, C.DANIEL, Sherrika, D.
    • WEAVER, Laura, BauerleMUNRO, Jeffrey, C.DANIEL, Sherrika, D.
    • C08L23/00C08J5/18
    • B29C43/003B29C43/24B29C47/0004C08J5/18C08J2323/10C08L23/08C08L23/0815C08L23/10C08L23/14C08L2205/025C08L2207/064
    • The instant invention provides a polymer composition suitable for clear graphic cling film applications, method of producing the same, articles made therefrom, and methods for making such articles. The polymer composition suitable for clear graphic cling film applications, according to the present invention, comprises: (a) a polyolefin composition selected from the group consisting of a propylene-based composition, and an ethylene-based composition, wherein the propylene-based composition has an melt flow rate in the range of from 2 to 8 g/10 minutes, a dynamic mechanical spectroscopy (DMS) value in the range of from 3700 to 10100 Pascal-seconds at 0.1 radian per second, and from 650 to 1200 Pascal-seconds at 100 radian per second measured at 190° C, and having a crystallinity in the range of from at least 4 percent by weight to 11 percent by weight, and a heat of fusion of in the range of from 6 to 19 Joules/gram, and a DSC melting point of less than 110° C (measured via DSC, second heat), and wherein the ethylene-based composition has a melt index (I2) in the range of from 0.5 to 5 g/10 minutes, and a density in the range of from 0.865 to 0.880 g/cm, a DMS value in the range of from 1800 to 17000 Pascal- seconds at 0.1 radian per second, and from 750 to 2200 Pascal- seconds at 100 radian per second measured at 190° C, and having a crystallinity in the range of from at least 14 percent by weight to 20 percent by weight, and a heat of fusion in the range of from 40 to 60 Joules/gram, and a DSC melting point of less than 70° C (measured via DSC, second heat), and (b) one or more alkyl phosphate-based release agent; wherein when said polyolefin composition is formed into a clear graphic cling film having a 7 (+ 2) mils, said clear graphic cling film has a haze in the range of from less than 4 percent, for example from 0.3 to 4 percent, measured according to ASTM-D 1003.
    • 本发明提供了一种适用于透明粘贴膜应用的聚合物组合物,其制备方法,由其制成的制品以及制备这种制品的方法。 根据本发明的适用于透明粘贴膜应用的聚合物组合物包括:(a)选自基于丙烯的组合物和基于乙烯的组合物的聚烯烃组合物,其中基于丙烯的组合物 具有在2至8g / 10分钟范围内的熔体流动速率,在0.1弧度/秒时的动态机械光谱(DMS)值范围为3700至10100帕斯卡 - 秒,以及650至1200帕斯卡 - 在190℃下以100弧度/秒测量的秒,其结晶度为至少4重量%至11重量%,熔化热为6至19焦耳/克 ,DSC熔点小于110℃(通过DSC测量,第二次热),其中乙烯基组合物的熔体指数(I 2)在0.5〜5g / 10分钟的范围内, 密度在0.865〜0.880g / cm的范围内,DMS值在该范围内 1800至17000帕斯卡 - 秒,0.1弧度/秒,750度至2200帕斯卡 - 秒,100弧度/秒,在190℃下测量,结晶度至少为14%至20 重量百分比,熔融热为40至60焦耳/克,DSC熔点低于70℃(通过DSC,第二次热测定),和(b)一种或多种烷基磷酸酯 脱模剂; 其中当所述聚烯烃组合物形成具有7(+ 2)密耳的透明粘贴膜时,所述透明粘贴膜的雾度在小于4%,例如0.3至4%的范围内,根据 至ASTM-D 1003。