Conformable multilayer films
Assignee3M Innovative Properties Company
InventorsRichard A. Kollaja, David D. Nguyen, Ronald S. Steelman, Buren R. Ree, Steven D. Solomonson, Philip D. Radovanovic
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Abstract
Conformable multilayer films having alternating layers of a stiff polymeric material and a flexible polymeric material are described.
Claims31
A multilayer film having a unified construction of at least 5 contiguous layers of organic polymeric material, comprising a stiff material alternating with layers comprising a flexible material, wherein said multilayer article exhibits a strain recovery of 55% or less, and a Young's modulus of 10,000 to 150,000 psi at room temperature and an elongation of 100% or greater at a strain rate of 600% per minute.
A process of preparing a multilayer film having a Young's modulus of 10,000 to 150,000 psi at room temperature, a strain recovery of 55% or less, and an elongation of 100% or greater at a strain rate of 600% per minute the process comprising melt processing organic polymeric material to form a unified construction of at least 5 contiguous layers of organic polymeric material, the construction comprises layer, comprising a stiff material alternating with layers comprising a flexible material.
Dependencies are inferred from the claim text.