Cavitated film structures

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United States of America Patent

APP PUB NO 20070020448A1
SERIAL NO

11187559

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Abstract

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A multilayer film structure, including (i) a core layer, wherein the core layer comprises a propylene polymer and is beta-cavitated, and preferably comprises a beta-nucleating agent and (ii) a first skin layer, wherein the first skin layer comprises a polar polymer. Optionally, the film further comprises a first intermediate layer (iii) between the core layer (i) and the first skin layer (ii). Embodiments may have the advantage of the benefits of a beta-cavitated film without the typical increase in permeability or water vapor transmission rates typically associated with beta-cavitated films.

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Patent Owner(s)

Patent OwnerAddress
EXXONMOBIL OIL CORPORATION5200 BAYWAY DRIVE BAYTOWN TX 77520

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hubbard, Michael Anthony Pittsford, NY 3 33
Kong, Dan-Cheng Fairport, NY 36 566
Sheppard, Robert M Victor, NY 21 116

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