| 发明名称 |
Barrier properties of substantially linear HDPE film with nucleating agents |
| 摘要 |
Disclosed is a method for improving the barrier properties of polyethylene films. The method comprises mixing a substantially linear, high density polyethylene with a nucleating agent and converting the mixture into a film. The film made by the method of the invention has at least a 15% improvement on the water vapor barrier property and/or in the oxygen barrier property compared with the control film made from the same substantially linear, high density polyethylene but does not contain the nucleating agent. |
| 申请公布号 |
US8809433(B2) |
申请公布日期 |
2014.08.19 |
| 申请号 |
US201313856097 |
申请日期 |
2013.04.03 |
| 申请人 |
Equistar Chemicals, LP |
发明人 |
Borke Jeffrey S.;McFaddin Douglas C.;Imfeld Stephen M. |
| 分类号 |
C08K5/04;C08K5/09;D06M15/693;C09D4/00;C09D201/00;C09J4/00;C09J201/00 |
主分类号 |
C08K5/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for improving the barrier properties of a polyethylene film, said method comprising converting into a film a mixture comprising a substantially linear, high density polyethylene (HDPE) having a long chain branching index (LCBI) less than or equal to 0.5 and a melt flow ratio (MFR) less than or equal to 65, and a nucleating agent selected from the group consisting of glycerol alkoxide salts, hexahydrophthalic acid salts, and mixtures thereof, wherein the film has at least a 15% improvement, compared with a control film which is made from the same substantially linear HDPE but does not contain the nucleating agent, in the water vapor barrier property or in the oxygen barrier property. |
| 地址 |
Houston TX US |
