Polyolefin Film for Use in Packaging
AssigneeKimberly-Clark Worldwide, Inc.
InventorsVasily A. Topolkaraev, Ryan J. McEneany, Mark M. Mleziva, Brent M. Thompson
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Abstract
A polyolefin packaging film is provided. The polyolefin film is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.
Claims26
1-38. (canceled)
A film comprising a thermoplastic composition, wherein the composition contains a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains, wherein a porous network is defined in the composition that includes a plurality of nanopores having an average cross-sectional dimension of about 800 nanometers or less.
Dependencies are inferred from the claim text.