Method of using a multilayered barrier structure
Assignee3M Innovative Properties Company
InventorsDebra L. Wilfong, Richard J. Rolando
Life of this patent
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Abstract
Multilayered barrier structures containing a gas barrier layer of a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas and a moisture barrier layer of a mesophase propylene-based material are provided. These structures are environmentally compatible and radiation resistant, and exhibit one or more additional properties, including gas barrier properties, moisture barrier properties, toughness, heat sealability, softness, and quietness during wrinkling. Also provided are methods of preparing and using such multilayered barrier structures, and articles, such as films, pouches, and tubings, formed from these structures.
Claims13
A method of using a multilayered structure as a barrier film comprising:
- providing a multilayered barrier film including a gas barrier layer of a non-chlorine containing organic polymer, and at least one moisture barrier layer of a mesophase propylene-based material proximate the gas barrier layer;
- and
- interposing the multilayered barrier film between a protected environment and an external environment such that gases and moisture cannot substantially pass through the multilayered barrier film.
Dependencies are inferred from the claim text.