| 摘要 |
<p>Use of a homogeneous blend of a metallocene-catalysed medium density polyethylene (mMDPE) having a Dow Rheology Index (DRI) of at least 5/MI2 with low density polyethylene (LDPE), to produce blown films, this composition essentially consisting of from 0.5 to 100 % by weight of mMDPE and of from 99.5 to 0 % by weight of LDPE, based on the total weight of the blend. The blend is optionally coextruded between layers of LDPE. The films produced according to this invention achieve good balanced shrink properties in machine direction (MD) and transverse direction (TD) with fast shrink speed and high shrink force at room temperature.</p> |
