# US 11,129,755 B2 · Disposable absorbent article comprising a core with multiple laminates > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,129,755 B2 - Document ID: US11129755B2 - Status: Granted - Kind: B2 - Application number: 15/729,919 - Filed: 2017-10-11 - Published: 2018-04-12 - Granted: 2021-09-28 - Earliest claimed: 2016-10-11 - Assignees: The Procter & Gamble Company - Applicants: The Procter & Gamble Company - Inventors: Stephen Lebeuf Hardie; Ronda Lynn Glassmeyer; Edward Paul Carlin - Web page: https://patentgrep.com/patent/US11129755B2 ## CPC - A61F 13/475: characterised by edge leakage prevention means - A61F 13/15203: {Properties of the article, e.g. stiffness or absorbency (chemical aspects A61L15/00)} - A61F 13/47: Sanitary towels, incontinence pads or napkins (A61F13/49 takes precedence) - A61F 13/472: specially adapted for female use - A61F 13/4758: {the means preventing fluid flow in a longitudinal direction} - A61F 13/51121: {characterised by the material} - A61F 13/514: Backsheet, i.e. the impermeable cover or layer furthest from the skin {(A61F13/15211, A61F13/15252 take precedence)} - A61F 13/534: having an inhomogeneous composition through the thickness of the pad (A61F13/538, A61F13/539 take precedence) - A61F 13/53409: {having a folded core} - A61F 13/535: inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes ({A61F13/5323,} A61F13/537 take precedence) - A61F 13/537: characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer {(A61F13/538 takes precedence)} - A61F 13/5611: {using fastening strips, e.g. adhesive, on the undergarment-facing side} - A61L 15/225: {Mixtures of macromolecular compounds} - A41B 9/12: Protective undergarments (combined with swabs or absorbent pads or specially adapted for supporting them A61F13/15) - A61F 13/49: specially adapted to be worn around the waist, e.g. diapers or nappies - A61F 13/49009: {with elastic means} - A61F 2013/15121: {for mild incontinence} - A61F 2013/15292: {Resistance, i.e. modulus or strength} - A61F 2013/15357: {Stiffness, e.g. Taber rigidity} - A61F 2013/15365: {Dimensions} - A61F 2013/15406: {Basis weight} - A61F 2013/15463: {Absorbency} - A61F 2013/15487: {Capillary properties, e.g. wicking} - A61F 2013/530233: {being thermoplastic fibres} - A61F 2013/53024: {being bicomponent fibres} - A61F 2013/530248: {being thermosetting fibres} - A61F 2013/530481: {having superabsorbent materials, i.e. highly absorbent polymer gel materials} - A61F 2013/530613: {in fibres} - A61F 2013/5355: {with terraced core} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - A41B: SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS ## Abstract Disposable absorbent articles suitable for providing leakage protection for users that experience relatively small to relatively large discharges of fluids wherein the article comprises a chassis which comprises a primary topsheet; a backsheet; an absorbent core having a front end portion, a central portion, and a rear end portion along its length, the core being disposed between the primary topsheet and the backsheet, and wherein the core comprises 1) a first laminate which includes a first superabsorbent layer disposed onto a first distribution layer and 2) a second laminate which includes a second distribution layer joined to a second superabsorbent layer; wherein the first distribution layer is joined to the second distribution layer in an offset manner along the length of the core such that a central portion of the core is formed from an overlapping joinder of the first and second laminates. ## Claims ### Claim 1 An absorbent article comprising a chassis which comprises: a. a primary topsheet having a body-facing surface and a garment-facing surface; b. a backsheet having a body-facing surface and garment-facing surface; c. an absorbent core having a front end portion, a central portion, and a rear end portion along its length, said core being disposed between said primary topsheet garment-facing surface and said backsheet body-facing surface, and wherein said core comprises 1) a first laminate which includes a first superabsorbent layer disposed onto a first distribution layer, the first laminate having a first front portion and a first rear portion, and 2) a second laminate which includes a second distribution layer joined to a second superabsorbent layer, the second laminate having a second front portion and a second rear portion; wherein said first distribution layer is joined in facing relationship to said second distribution layer and in an offset manner along the length of the core such that the central portion of said core is formed from an overlapping joinder of said first and second laminates, wherein the first front portion does not overlie or underlie the second front portion, and the first rear portion does not overlie or underlie the second rear portion; wherein each of the first and second distribution layers has a basis weight of from 80 gsm to 240 gsm; and wherein each of the first and second superabsorbent layers comprises a superabsorbent polymer or absorbent gelling material. ### Claim 2 (depends on 1) The absorbent article of claim 1 wherein said front end portion and said rear end portion are respectively disposed at opposing ends of said central portion of said core. ### Claim 3 (depends on 1) The absorbent article of claim 1 wherein said first and second superabsorbent layers have different cross direction widths from one another. ### Claim 4 (depends on 1) The absorbent article of claim 1 wherein said first or second superabsorbent layers are substantially free of airfelt material. ### Claim 5 (depends on 1) The absorbent article of claim 1 wherein said first superabsorbent layer is disposed discontinuously onto the first distribution layer. ### Claim 6 (depends on 1) The absorbent article of claim 1 wherein said first and second distribution layers each comprise an airlaid. ### Claim 7 (depends on 1) The absorbent article of claim 1 wherein said first laminate comprises an optional layer between said first superabsorbent layer and said first distribution layer. ### Claim 8 (depends on 1) The absorbent article of claim 1 wherein said second laminate comprises an optional layer between said second superabsorbent layer and said second distribution layer. ### Claim 9 (depends on 1) The absorbent article of claim 1 wherein said first and second laminates each have a first end that is complementary in shape to a respective second end of the same laminate. ### Claim 10 (depends on 9) The absorbent article of claim 9 wherein said first ends of the first and second laminates oppose each other and form a front end portion and a rear end portion of the absorbent core, respectively. ### Claim 11 (depends on 10) The absorbent article of claim 10 wherein said complementary shapes are in the form of semi-circles, semi-ellipses, chevrons, rectangles, sinusoids, or jigsaws. ### Claim 12 (depends on 1) The absorbent article of claim 1 including barrier cuffs comprising elastic strands, the cuffs being joined to said primary topsheet along a length of the article. ### Claim 13 (depends on 1) The absorbent article of claim 1 wherein the first and second the superabsorbent layers comprise the same superabsorbent polymer. ### Claim 14 (depends on 1) The absorbent article of claim 1 further comprising a secondary topsheet disposed beneath said primary topsheet and on the body-facing surface of said core. ### Claim 15 An absorbent article comprising a chassis which comprises: a. a primary topsheet having a body-facing surface and a garment-facing surface; b. a backsheet having a body-facing surface and garment-facing surface; c. an absorbent core which is disposed between said primary topsheet garment-facing surface and said backsheet body-facing surface, wherein said core comprises 1) a first laminate having a first end which is complementary in shape to its respective second end and wherein said laminate includes a first superabsorbent layer disposed onto a first distribution layer, the first laminate having a first front portion and a first rear portion, and 2) a second laminate having a first end which is complementary in shape to its respective second end and wherein said laminate includes a second distribution layer joined to a second superabsorbent layer, the second laminate having a second front portion and a second rear portion; wherein said first distribution layer is joined in facing relationship to said second distribution layer and in an offset manner along a length of the absorbent article wherein the absorbent core has a front end portion that is formed by the first end of the second laminate, wherein the first front portion does not overlie or underlie the second front portion, and the first rear portion does not overlie or underlie the second rear portion; wherein each of the first and second distribution layers has a basis weight of from 80 gsm to 240 gsm; and wherein each of the first and second superabsorbent layers comprises a superabsorbent polymer or absorbent gelling material. ### Claim 16 (depends on 15) The absorbent article of claim 15 wherein said first end of said first laminate forms a rear end portion of the absorbent core. ### Claim 17 (depends on 16) The absorbent article of claim 16 wherein said first ends are in the form of a male connection derived from a nested cut. ### Claim 18 An absorbent article comprising a chassis which comprises: a. a primary topsheet having a body-facing surface and a garment-facing surface; b. a backsheet having a body-facing surface and garment-facing surface; c. an absorbent core which is disposed between said primary topsheet garment-facing surface and said backsheet body-facing surface, wherein said core comprises 1) a first laminate which includes a first superabsorbent layer disposed onto a first distribution layer, the first laminate having a first front portion and a first rear portion, and 2) a second laminate which includes a second distribution layer joined to a second superabsorbent layer, the second laminate having a second front portion and a second rear portion; wherein said first distribution layer is joined in facing relationship to said second distribution layer in an offset manner along the length of the core such that a central portion of said core is formed from an overlapping joinder of said first and second laminates, wherein the first front portion does not overlie or underlie the second front portion, and the first rear portion does not overlie or underlie the second rear portion; wherein one or both of the first and second superabsorbent layers have a smaller cross direction width than the respective first or second distribution layers to which they are joined; wherein each of the first and second distribution layers has a basis weight of from 80 gsm to 240 gsm; and wherein each of the first and second superabsorbent layers comprises a superabsorbent polymer or absorbent gelling material. ### Claim 19 An absorbent article comprising a chassis which comprises: a. a primary topsheet having a body-facing surface and a garment-facing surface; b. a backsheet having a body-facing surface and garment-facing surface; c. an absorbent core having a front end portion, a central portion, and a rear end portion along its length, said core being disposed between said primary topsheet garment-facing surface and said backsheet body-facing surface, and wherein said core comprises 1) a first laminate which includes a first superabsorbent layer disposed onto a first distribution layer, the first laminate having a first front portion and a first rear portion, and 2) a second laminate which includes a second distribution layer joined to a second superabsorbent layer, the second laminate having a second front portion and a second rear portion; wherein said first distribution layer is joined in facing relationship to said second superabsorbent layer in an offset manner along the length of the core such that the central portion of said core is formed from an overlapping joinder of said first and second laminates, wherein the first front portion does not overlie or underlie the second front portion, and the first rear portion does not overlie or underlie the second rear portion; wherein each of the first and second distribution layers has a basis weight of from 80 gsm to 240 gsm; and wherein each of the first and second superabsorbent layers comprises a superabsorbent polymer or absorbent gelling material.