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1. 发明申请

WO2021122262A1 MULTILAYER FILMS FOR PACKAGING RUBBER BALES 审中-公开
公开(公告)号：WO2021122262A1
公开(公告)日：2021-06-24
申请号：PCT/EP2020/085419
申请日：2020-12-10
申请人： SABIC GLOBAL TECHNOLOGIES B.V.
发明人： OUDDANE, Mohamed , HOMOUD-AL, Riyadh , KAKKUZHI, Abdulnizar
IPC分类号： B32B27/08 , B32B27/32 , C08J5/18 , B32B2250/03 , B32B2250/24 , B32B2250/246 , B32B2250/40 , B32B2270/00 , B32B2307/72 , B32B2307/732 , B32B2307/748 , B32B2553/00
摘要： The invention relates to multilayer films that are suitable for packaging rubber bale and have excellent compatibility with rubber along with improved melt processability and optical property. In particular, the multilayer films of the present invention, comprises: a) a first skin layer and a second skin layer, wherein each of the first skin layer and the second skin layer independently comprises: (i) an ethylene polymer having a density ranging from 918 kg/m3 to 930 kg/m3 when determined in accordance with ASTM D1505 at 230C, wherein the ethylene polymer is present in an amount ranging from 2 wt.% to 30 wt.%, with regard to the total weight of each of first skin layer and second skin layer; and (ii) a first ethylene alpha-olefin copolymer having a density ranging from 880 to 905 kg/m3, when determined in accordance with ASTM D792 at 230C and present in an amount ranging from 70 wt.% to 98 wt.%, with regard to the total weight of each of first skin layer and second skin layer, and wherein the first ethylene alpha-olefin copolymer comprises 2 wt.% to 25 wt.%, of moieties derived from alpha olefin, with regard to the total weight of the first ethylene alpha-olefin copolymer; and (b) at least one core layer positioned between the first skin layer and the second skin layer comprising a second ethylene alpha-olefin copolymer present in an amount ranging from 95 wt.% to 100 wt.%, with regard to the total weight of the core layer, and wherein the second ethylene alpha-olefin copolymer has a density ranging from 830 to 875 kg/m3, when determined in accordance with ASTM D792 at 230C, wherein the second ethylene alpha-olefin copolymer comprises 30 wt.% to 45 wt.%, of moieties derived from alpha- olefins, with regard to the total weight of the second ethylene alpha-olefin copolymer.

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