US 11,877,913 B2
Absorbent article with tackifier-free adhesive
William L. Bunnelle, Ham Lake, MN (US); and Robert Haines Turner, Cincinnati, OH (US)
Assigned to The Procter and Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Aug. 23, 2022, as Appl. No. 17/893,222.
Application 17/893,222 is a continuation of application No. 16/839,433, filed on Apr. 3, 2020, granted, now 11,497,654.
Application 16/839,433 is a continuation of application No. 14/302,745, filed on Jun. 12, 2014, granted, now 10,639,210, issued on May 5, 2020.
Claims priority of provisional application 61/918,434, filed on Dec. 19, 2013.
Prior Publication US 2022/0409438 A1, Dec. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 13/15 (2006.01); A61L 15/42 (2006.01); C08L 23/22 (2006.01); C09J 5/06 (2006.01); C09J 123/22 (2006.01); A61L 15/24 (2006.01); A61L 15/58 (2006.01); B32B 7/12 (2006.01); B32B 23/00 (2006.01); C09J 123/20 (2006.01)
CPC A61F 13/15203 (2013.01) [A61F 13/15699 (2013.01); A61L 15/24 (2013.01); A61L 15/42 (2013.01); A61L 15/585 (2013.01); B32B 7/12 (2013.01); B32B 23/00 (2013.01); C08L 23/22 (2013.01); C09J 5/06 (2013.01); C09J 123/20 (2013.01); C09J 123/22 (2013.01); A61F 2013/15569 (2013.01); A61L 2300/802 (2013.01); B32B 2250/02 (2013.01); B32B 2555/02 (2013.01); C08L 2205/025 (2013.01); C08L 2207/324 (2013.01); C09J 2301/304 (2020.08); Y10T 428/3188 (2015.04); Y10T 428/31938 (2015.04)] 20 Claims
OG exemplary drawing
1. An absorbent article having a longitudinal centerline and a lateral centerline, a front waist region with a front waist edge, a rear waist region with a rear waist edge, a crotch region disposed between the front waist region and the rear waist region, and two spaced apart longitudinal side edges joining the front waist edge to the rear waist edge, wherein the absorbent article comprises an assembly of components, and wherein the assembly of components comprises:
a) a topsheet;
b) a backsheet underlying the topsheet;
c) an absorbent core disposed between the topsheet and the backsheet, wherein the absorbent core comprises at least one of a core cover, a dusting layer, an acquisition layer, a distribution layer, and a storage member;
d) at least one additional component selected from the group consisting of:
i) a fastening system for joining the front waist region to the rear waist region when the absorbent article is worn;
ii) barrier cuffs lying adjacent and inboard the two spaced apart longitudinal side edges;
iii) gasketing cuffs lying between each of the two spaced apart longitudinal side edges and the barrier cuffs;
iv) front ears disposed in the front waist region;
v) back ears disposed in the rear waist region; and
vi) a receiving member; and
e) an adhesive composition joining at least two of the assembly of components together, wherein the adhesive composition comprises at least 90 wt. % of a copolymer, wherein the copolymer comprises from about 30 mole % to about 70 mole % of propene monomer units and from about 30 mole % to about 75 mole % of 1-butene monomer units;
wherein the adhesive composition is free of a heterophase copolymer;
wherein the adhesive composition has a viscosity of less than 10,000 mPa·s at 190° C., as measured by the Viscosity Test Method.