发明名称 |
BIORIENTED POLYETHYLENE FILM |
摘要 |
<p>The present invention discloses a process for forming a biaxially oriented film. The process includes first selecting a polyolefin resin wherein said polyolefin resin comprises a linear low density polyethylene resin characterized by having from 9 to 35 weight percent of the total weight of linear low density polyethylene resin eluting from a CEF at a temperature greater than 97.0° C.; and further characterized by having a CDR of from 33 to 80 and a Mw Ratio of from 0.15 to 0.45. Next a film is formed from the polyolefin resin selected in the first step. Finally the film formed in the second step is oriented in a sequential manner. The films produced by this process are characterized by having an ultimate elongation at least 1.5 times greater in the MD as compared to the CD and the 2% secant modulus is a least 1.25 times greater in the CD as compared to the MD. The films are further characterized by having free residual shrinkage of less than 10% in the MD and less than 10% in the CD when exposed to a temperature of 90° C. for 10 minutes.</p> |
申请公布号 |
EP2750863(A1) |
申请公布日期 |
2014.07.09 |
申请号 |
EP20110871555 |
申请日期 |
2011.08.26 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
YUN, BINGXIAO;CONG, RONGJUAN;PAN, JEPHREY;KARJALA, P. TERESA |
分类号 |
C08J5/18;B29C55/12;B32B27/32 |
主分类号 |
C08J5/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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