US 12,268,579 B2
Beamed elastomeric laminate performance and zones
Gary D. LaVon, Liberty Township, OH (US); Bret D. Seitz, West Chester, OH (US); and Kaoru Ishihara, West Chester, OH (US)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Mar. 8, 2021, as Appl. No. 17/194,371.
Claims priority of provisional application 62/989,059, filed on Mar. 13, 2020.
Prior Publication US 2021/0282979 A1, Sep. 16, 2021
Int. Cl. A61F 13/15 (2006.01); A61F 13/49 (2006.01); A61F 13/496 (2006.01); A61F 13/53 (2006.01)
CPC A61F 13/15699 (2013.01) [A61F 13/49012 (2013.01); A61F 13/4963 (2013.01); A61F 13/53 (2013.01); A61F 2013/1591 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A disposable absorbent pant article, comprising:
a chassis comprising a topsheet, a backsheet and an absorbent core disposed between the topsheet and the backsheet;
a first plurality of elastic strands disposed in a front waist region;
a second plurality of elastic strands disposed in a back waist region;
wherein the front and back waist regions are joined together at laterally opposed side seams to form a waist and leg openings;
wherein the front waist region is a region between a) a proximal most front axis extending parallel to the lateral axis and passing through proximal most points of the laterally opposed side seams; and b) a distal most front axis extending parallel to the lateral axis and passing through distal most points of the laterally opposed side seams;
wherein the back waist region is a region between a) a proximal most back axis extending parallel to the lateral axis and passing through proximal most points of the laterally opposed side seams; and b) a distal most back axis extending parallel to the lateral axis and passing through distal most points of the laterally opposed side seams;
wherein the front waist region comprises a front component region disposed between and including a front distal most elastic strand of the front waist region and a proximal most elastic strand of the front waist region;
wherein the front component region is defined by a front distal component region line extending parallel to the lateral axis and passing through a distal most point of the front distal most elastic strand and a front proximal component region line extending parallel to the lateral axis and passing through a proximal most point of the front proximal most elastic strand;
wherein the front component region is then divided into 4 equal component sections, defined by first, second, and third component section lines, each disposed parallel to the lateral axis and disposed at 25%, 50% and 75% of the distance between the front distal component region line and front proximal component region line;
wherein the front component region comprises a first component section, Front Section 1, comprising the front distal most elastic strand, a fourth component section, Front Section 4, comprising the front proximal most elastic strand, a second component section, Front Section 2, adjacent to Front Section 1, and a third component section, Front Section 3, disposed between Front Sections 2 and 4;
wherein the back waist region comprises a back component region disposed between and including a back distal most elastic strand of the back waist region and a proximal most elastic strand of the back waist region;
wherein the back component region is defined by a back distal component region line extending parallel to the lateral axis and passing through a distal most point of the back distal most elastic strand and a back proximal component region line extending parallel to the lateral axis and passing through a proximal most point of the back proximal most elastic strand;
wherein the back component region is then divided into 4 equal component sections, defined by first, second, and third component section lines, each disposed parallel to the lateral axis and disposed at 25%, 50% and 75% of the distance between the back distal component region line and back proximal component region line;
wherein the back component region comprises a first component section, Back Section 1, comprising the back distal most elastic strand, a fourth component section, Back Section 4, comprising the back proximal most elastic strand, a second component section, Back Section 2, adjacent to Back Section 1, and a third component section, Back Section 3, disposed between Back Sections 2 and 4;
wherein at least one of Front Sections 1-4 comprises the first plurality of elastics and at least one of a plurality of apertures and a mechanically deformed portion forming ridges and valleys;
wherein the at least one of Front Sections 1-4 has a Laminate-Modulus from about 3 gf/mm to about 12 gf/mm, a Strain of greater than 110% at a Stress of 9.1 gf/mm, and a Strain-to-Modulus-Ratio greater than about 30 and less than about 80; and
wherein the disposable absorbent pant article has an Application-Stress of from about 7.5 gf/mm to about 14 gf/mm, and a Sustained-Fit-Load-Stress greater than 30% of the Application-Stress, and a Sustained-Fit-Unload-Stress greater than 25% of the Application-Stress.