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Patents

Extrusion Bonded Laminates for Absorbent Articles:

U.S. Patent No. 9,895,275

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By: Karen McIntyre

Editor, Nonwovens Industry

Jean-Philippe Marie Autran, Wyoming, OH; Iyad Muslet, Mason, OH; David G. Bland, Mason, OH; Leopoldo V. Cancio, Vero Beach, FL; Janet Neton, West Chester, OH; and Todd Leon Mansfield, Cincinnati, OH.
Assigned to Procter & Gamble, Cincinnati, OH.

Filed: 4/23/13
Issued: 2/20/18

An absorbent article comprising: a topsheet; an outer cover; an absorbent core disposed between the topsheet and outer cover; wherein the outer cover comprises an extrusion bonded laminate, the extrusion bonded laminate comprising: a multi-layer coextruded elastomeric film, comprising a core layer, a first outer layer, and a second outer layer, wherein the core layer is between the first and second outer layers; a nonwoven consisting of fibers and/or filaments; wherein the first outer layer is joined to the nonwoven via extrusion coating, such that the first outer layer is a tie layer between the core layer and the nonwoven; wherein the second outer layer is joined to the core layer, such that the second outer layer is a skin layer; wherein the first and second outer layers comprise polyolefin elastomers (POEs); wherein the first and second outer layers comprise a blend of two ethylene-rich copolymers, wherein ethylene is between 10% and 97%; wherein the extrusion bonded laminate is mechanically activated using intermeshing gears; wherein the nonwoven has a high chemical affinity for the first outer layer; wherein the first outer layer has a low chemical affinity for the core layer; wherein the first outer layer comprises an amount of draw down polymer greater than 45wt %; and wherein the activated laminate has a % engineering strain at 1 N/cm force, as measured by the tensile test, of about 50% to about 140%.

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