Thermoformed Article Formed from a Porous Polymeric Sheet
AssigneeKimberly-Clark Worldwide, Inc.
InventorsVasily A. Topolkaraev, Ryan J. McEneany, Brent M. Thompson, Duane L. McDonald
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Abstract
A thermoformed article that is formed from a polymeric sheet having a thickness of from about 0.1 to about 100 millimeters is provided. The polymeric sheet contains a thermoplastic composition that includes a continuous phase that includes a matrix polymer. A microinclusion additive and nanoinclusion additive are dispersed within the continuous phase in the form of discrete domains, and 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.
Claims24
A thermoformed article that is formed from a polymeric sheet having a thickness of from about 0.1 to about 100 millimeters, wherein the polymeric sheet contains a thermoplastic composition that includes a continuous phase that includes a matrix polymer, wherein a microinclusion additive and nanoinclusion additive are dispersed within the continuous phase in the form of discrete domains, and further 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.