Splitting of cyclic olefin copolymer ramps up film performance

TOPAS Advanced Polymers at the recent SPE Antec 2017 conference  has recently claimed that the splitting of cyclic olefin copolymer (COC) into at least two layers in five-
layer film structures has been found to provide significant performance improvements in packaging films comprising LLDPE.  

The company’s research team identified that the addition of one or more discrete layers of amorphous COC to LDDPE-based blown film reduced total haze. The study also demonstrated that tear resistance was reduced, while at the same time, improving tensile properties. This indicates that splitting COC into more than two layers may reduce this loss further and enable efficient use of COC for a variety of packaging film applications.