Nettings, dies, and methods of making the same
Assignee3M Innovative Properties Company
InventorsRonald W. Ausen, William J. Kopecky, Thomas P. Hanschen, Wei Zhang
Life of this patent
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Abstract
Netting (100) comprising an array of polymeric strands (121, 122) periodically joined together at bond regions (113) throughout the array, and methods and dies for making the same. Nettings described herein have a variety of uses, including wound care and other medical applications, filtration, absorbent articles, pest control articles, and geotextile applications.
Claims9
A netting comprising an array of filamentous collinear polymeric strands, wherein the array comprises a first plurality of strands having first and second, generally opposed major surfaces, wherein the array comprises a second plurality of strands having first and second, generally opposed major surfaces, wherein a first major surface of the netting comprises the first major surfaces of the first and second plurality of strands, wherein a second major surface of the netting comprises the second major surfaces of the first and second plurality of strands, wherein the first major surface of the first plurality of strands comprises a first material, wherein the second major surface of the first plurality of strands comprises a second material, wherein the first major surface of the second plurality of strands comprises a third material, wherein the second major surface of the second plurality of strands comprises a fourth material, wherein the first and second materials are different, and wherein the first material does not extend to the second major surface of the first plurality of strands, wherein the first polymeric strands and the second polymeric strands alternate and do not substantially cross over each other, and an exterior surface of the first polymeric strands and an exterior surface of the second polymeric strands are periodically bonded together to form bond regions throughout the array, wherein the bond regions are perpendicular to the first major surface of the netting and the second major surface of the netting, and wherein the bond regions comprise each of the first material, the second material, the third material and the fourth material and wherein at least three of the first, second, third, or fourth materials are different.
Dependencies are inferred from the claim text.