ETHYLENE COPOLYMER HAVING ENHANCED FILM PROPERTIES

    公开(公告)号:US20180346623A1

    公开(公告)日:2018-12-06

    申请号:US15985039

    申请日:2018-05-21

    摘要: The disclosure provides an ethylene copolymer having a density of from 0.912 g/cm3 to 0.925 g/cm3, a melt flow ratio (I21/I2) of from 20 to 30, and a normal comonomer distribution profile in a GPC-FTIR analysis, wherein the normal comonomer distribution profile has a slope of from −3.5 to −7.5, where the slope is defined as the number of short chain branches per 1000 carbons at a molecular weight of 300,000 minus the number of short chain branches per 1000 carbons at a molecular weight of 30,000. The ethylene copolymers have improved bulk density and when made into film, provide good physical properties.