发明名称 |
FILMS |
摘要 |
A multilayer machine direction oriented film comprising at least an (A) layer and (B) layer, at least one of said (A) layer or (B) layer comprising at least 50 wt % of a multimodal linear low density polyethylene (LLDPE) having a density of 905 to 940 kg/m3 and an MFR2 of 0.01 to 20 g/10 min and comprising a lower molecular weight (LMW) component and a higher molecular weight (HMW) component; wherein said LMW component is an ethylene homopolymer and said HMW component is an ethylene polymer of ethylene with at least two C4-12 alpha olefins; wherein said film is a stretched film which is uniaxially oriented in the machine direction (MD) in a draw ratio of at least 1:3 and has a film thickness of at least 40 microns (after stretching) and wherein said film does not comprise a layer in which more than 50 wt % of said layer comprises a polymer component having a melting point (Tm) of 100° C. or less. |
申请公布号 |
US2016271917(A1) |
申请公布日期 |
2016.09.22 |
申请号 |
US201415037470 |
申请日期 |
2014.11.19 |
申请人 |
BOREALIS AG |
发明人 |
NUMMILA-PAKARINEN Auli;NIEDERSUESS Peter |
分类号 |
B32B27/32;B29C47/00;B29C55/06 |
主分类号 |
B32B27/32 |
代理机构 |
|
代理人 |
|
主权项 |
1. A multilayer machine direction oriented film comprising at least an (A) layer and (B) layer,
at least one of said (A) layer or (B) layer comprising at least 50 wt % of a multimodal linear low density polyethylene (LLDPE) having a density of 905 to 940 kg/m3 and an MFR2 of 0.01 to 20 g/10 min which comprises a lower molecular weight (LMW) component and a higher molecular weight (HMW) component; wherein said LMW component is an ethylene homopolymer and said HMW component is an ethylene polymer of ethylene with at least two C4-12 alpha olefins; wherein said film is a stretched film which is uniaxially oriented in the machine direction (MD) in a draw ratio of at least 1:3 and has a film thickness of at least 40 microns (after stretching) and wherein said film does not comprise a layer in which more than 50 wt % of said layer comprises a polymer component having a melting point (Tm) of 100° C. or less. |
地址 |
Vienna AT |