Coextruded articles, dies and methods of making the same
Assignee3M Innovative Properties Company
InventorsRamasubramani Kuduva Raman Thanumoorthy, Becky A. Jetto, Dedra V. Dunevant, Ronald W. Ausen, William J. Kopecky, James J. Kobe, Robert T. Krasa
Life of this patent
Estimating the term…
Abstract
Coextruded articles comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, and methods for making the same. Embodiment of coextruded articles described herein are useful, for example, in cushioning applications where high levels of compression are desired.
Claims15
A coextruded article comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, wherein there are at least first walls per centimeter, and wherein there is an average minimum width for the first walls, and wherein the minimum width of an individual first wall is within ±25 (percent of the average minimum width for the first walls.
A coextruded article comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, wherein the first layer comprises segments, wherein each segment being connected to a single wall, wherein there is a line of demarcation line between adjacent segments, and wherein there are at least 10 first walls per centimeter.
A coextruded article comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, wherein there are at least 10 first walls per centimeter, wherein the first layer comprises a first material, the second layer comprises a second material, and the walls comprise a third material, and wherein the third material is different from both the first and second materials.
Dependencies are inferred from the claim text.