Absorbent article with tear resistant film
AssigneeThe Procter & Gamble Company
InventorTodd Leon Mansfield
Life of this patent
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Abstract
A disposable absorbent article that includes an elastic film material. The elastic film resists the growth of a tear and include an SEEPS block copolymer having a Tm of between about 10° C. and about 20° C. The film has a time-to-fail of greater than 1 hour.
Claims17
A disposable absorbent article comprising an elastic film material that resists the growth of a tear, wherein the elastic film material has a High Speed Tensile Strength of between about 15 and about 22 MPa according to the High Speed Tensile Test and a time-to-fail of greater than 12 hours according to the Slow Tear Test.
A disposable absorbent article comprising an elastic film material that resists the growth of a tear, wherein the elastic film material comprises a block copolymer, wherein greater than 90% of the isoprene and/or butadiene in a midblock of the block copolymer are hydrogenated, wherein the elastic film material has a time-to-fail of greater than 1 hour according to the Slow Tear Test, wherein the elastic film is joined to one or more nonwoven layers to form a laminate, and wherein the laminate has a Laminate Integrity Time of greater than 2 hours according to the Laminate Integrity Test.
A disposable absorbent article for wearing about the lower torso of a wearer, the absorbent article comprising:
- a topsheet, a backsheet, and an absorbent core disposed therebetween, first and second opposing longitudinal side edges, a front waist region and an opposing back waist region;
- a first ear extending outwardly from the first longitudinal side edge in the back waist region and joined to at least one of the topsheet, the backsheet, and the absorbent core;
- a second ear extending outwardly from the second longitudinal side edge in the back waist region and joined to at least one of the topsheet, the backsheet, and the absorbent core;
- at least one of the first and second ears comprising a laminate comprising an elastic film material that resists the growth of a tear disposed between two nonwoven layers;
- wherein at least a portion of one of the two nonwoven layers is activated and the laminate has a laminate integrity time of greater than 2 hours according to the Laminate Integrity Test;
- and
- wherein the elastic film material has a High Speed Tensile Strength of between about 15 and about 22 MPa according to the High Speed Tensile Test and a time-to-fail of greater than 1 hour according to the Slow Tear Test.
Dependencies are inferred from the claim text.