# US 11,433,158 B2 · Recycle friendly and sustainable absorbent articles > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,433,158 B2 - Document ID: US11433158B2 - Status: Granted - Kind: B2 - Application number: 16/207,327 - Filed: 2018-12-03 - Published: 2019-06-27 - Granted: 2022-09-06 - Earliest claimed: 2017-12-12 - Assignees: The Procter & Gamble Company - Applicants: The Procter & Gamble Company - Inventors: Paul Thomas Weisman; Eric Patton Weinberger - Web page: https://patentgrep.com/patent/US11433158B2 ## CPC - A61L 15/24: Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof {(A61L15/225 takes precedence)} - A61F 13/53: characterised by the absorbing medium (A61F13/20 takes precedence) - A61L 15/60: Liquid-swellable gel-forming materials, e.g. super-absorbents - A61L 15/62: {Compostable,} hydrosoluble or hydrodegradable materials - A61F 2013/530481: {having superabsorbent materials, i.e. highly absorbent polymer gel materials} - 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) - 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) ## Abstract An absorbent article comprising a topsheet, a backsheet joined to the topsheet, and an absorbent core positioned intermediate the topsheet and the backsheet and comprising a core absorbent material, in which the core absorbent material comprises superabsorbent polymers with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B and the absorbent article comprises a polyolefin content of at least about 90% by weight, based on a total weight of the absorbent article excluding the core absorbent material. ## Claims ### Claim 1 An absorbent article comprising: a topsheet; a backsheet joined to the topsheet and comprising one or more of a backsheet film or a backsheet nonwoven web; an absorbent core positioned intermediate the topsheet and the backsheet, the absorbent core comprising a core absorbent material; and one or more of a landing zone, a stretch ear film, a back ear nonwoven web, tape tabs, ear hooks, a front ear nonwoven web, a waist feature nonwoven web, waist feature elastics, a barrier leg cuff nonwoven web, outer leg elastics, an acquisition material, a core cover nonwoven web, chassis adhesives, or core adhesives; wherein the core absorbent material comprises superabsorbent polymers with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B; wherein at least one of the topsheet or the backsheet and at least one of the backsheet film, the backsheet nonwoven web, the landing zone, the stretch ear film, the back ear nonwoven web, the tape tabs, the ear hooks, the front ear nonwoven web, the waist feature nonwoven web, the waist feature elastics, the barrier leg cuff nonwoven web, the outer leg elastics, the acquisition material, the core cover nonwoven web, the chassis adhesives, or the core adhesives comprise a bio-based polyolefin with: a bio-based content from 5% to 100% using ASTM D6866-10, method B; and a purity of about 98 weight % polyolefin and less than 2 weight % impurities; and wherein the absorbent article comprises a polyolefin content of at least about 90% by weight, based on a total weight of the absorbent article excluding the core absorbent material; and wherein recycled polyolefin recovered from an entirety of the absorbent article via a recycling operation comprises a polyolefin content of at least about 90% by weight, based on a total weight of the absorbent article excluding the core absorbent material. ### Claim 2 (depends on 1) The absorbent article of claim 1, wherein the polyolefin content comprises at least about 95% by weight, based on the total weight of the absorbent article excluding the core absorbent material. ### Claim 3 (depends on 1) The absorbent article of claim 1, wherein the polyolefin content comprises at least about 99% by weight, based on the total weight of the absorbent article excluding the core absorbent material. ### Claim 4 (depends on 1) The absorbent article of claim 1, wherein the bio-based content of the superabsorbent polymers comprises from about 10% to about 100% using ASTM D6866-10, method B. ### Claim 5 (depends on 1) The absorbent article of claim 1, wherein the bio-based content of the superabsorbent polymers comprises from about 90% to about 100% using ASTM D6866-10, method B. ### Claim 6 (depends on 1) The absorbent article of claim 1, wherein the at least one of the nonwoven topsheet, the backsheet film, the backsheet nonwoven web, the landing zone, the stretch ear film, the back ear nonwoven web, the tape tabs, the ear hooks, the front ear nonwoven web, the waist feature nonwoven web, the waist feature elastics, the barrier leg cuff nonwoven web, the outer leg elastics, the acquisition material, the core cover nonwoven web, the chassis adhesives, or the core adhesives that comprises the bio-based polyolefin comprises at least about 50% by weight of polyolefin. ### Claim 7 (depends on 1) The absorbent article of claim 1, wherein the superabsorbent polymers are made at least in part from bio-based acrylic acid having a purity of about 98 weight % acrylic acid. ### Claim 8 An absorbent article comprising the following enumerated components: (1) a topsheet; (2) a backsheet film; (3) a backsheet nonwoven web; (4) a landing zone; (5) a stretch ear film; (6) a back ear nonwoven web; (7) tape tabs; (8) ear hooks; (9) a front ear nonwoven web; (10) a waist feature nonwoven web; (11) waist feature elastics; (12) a barrier leg cuff nonwoven web; (13) outer leg elastics; (14) an acquisition material; (15) a core cover nonwoven web; (16) chassis adhesives; and (17) core adhesives; wherein the topsheet is joined to a backsheet defined by the backsheet film and the backsheet nonwoven web; wherein the core cover nonwoven web and a core absorbent material are positioned intermediate the topsheet and the backsheet; and wherein at least 13 of the 17 enumerated components of the absorbent article comprise one or more polyolefins; wherein at least 3 of the 13 components comprising one or more polyolefins comprise a bio-based polyolefin with: a bio-based content from 5% to 100% using ASTM D6866-10, method B; and a purity of about 98 weight % polyolefin and less than 2 weight % impurities; and wherein the core absorbent material comprises superabsorbent polymers with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B; and wherein recycled polyolefin recovered from an entirety of the absorbent article via a recycling operation comprises a polyolefin content of at least about 90% by weight, based on a total weight of the absorbent article excluding the core absorbent material. ### Claim 9 (depends on 8) The absorbent article of claim 8, wherein at least 14 of the 17 enumerated components of the absorbent article comprise one or more polyolefins, and wherein at least 4 of the 14 components comprising one or more polyolefins comprise the bio-based polyolefin. ### Claim 10 (depends on 8) The absorbent article of claim 8, wherein at least 16 of the 17 enumerated components of the absorbent article comprise one or more polyolefins, and wherein at least 5 of the 16 components comprising one or more polyolefins comprise the bio-based polyolefin. ### Claim 11 (depends on 8) The absorbent article of claim 8, wherein at least one of the enumerated components that comprises one or more polyolefins comprises a bio-based polyolefin with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B. ### Claim 12 (depends on 8) The absorbent article of claim 8, wherein at least five of the enumerated components that comprise one or more polyolefins comprise a bio-based polyolefin with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B. ### Claim 13 (depends on 8) The absorbent article of claim 8, wherein the superabsorbent polymers are made at least in part from bio-based acrylic acid having a purity of about 98 weight % acrylic acid and wherein the absorbent article comprises a polyolefin content of at least about 95% by weight, based on the total weight of the absorbent article excluding the core absorbent material. ### Claim 14 An absorbent article comprising the following enumerated components: (1) a topsheet; (2) a backsheet film; (3) a backsheet nonwoven web; (4) belt elastics; (5) a belt nonwoven web; (6) chassis adhesives; (7) a barrier leg cuff nonwoven web; (8) outer leg elastics; (9) an acquisition material; (10) a core cover nonwoven web; and (11) core adhesives; wherein the topsheet is joined to a backsheet defined by the backsheet film and the backsheet nonwoven web; wherein the core cover nonwoven web and a core absorbent material are positioned intermediate the topsheet and the backsheet; wherein at least 7 of the 11 enumerated components of the absorbent article comprise one or more polyolefins; wherein at least 3 of the 7 components comprising one or more polyolefins comprise a bio-based polyolefin with: a bio-based content from 5% to 100% using ASTM D6866-10, method B; and a purity of about 98 weight % polyolefin and less than 2 weight % impurities; wherein the core absorbent material comprises superabsorbent polymers with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B; and wherein recycled polyolefin recovered from an entirety of the absorbent article via a recycling operation comprises a polyolefin content of at least about 90% by weight, based on a total weight of the absorbent article excluding the core absorbent material. ### Claim 15 (depends on 14) The absorbent article of claim 14, wherein at least 8 of the enumerated components of the absorbent article comprise one or more polyolefins, and wherein at least 4 of the 8 components comprising one or more polyolefins comprise the bio-based polyolefin. ### Claim 16 (depends on 14) The absorbent article of claim 14, wherein at least 10 of the enumerated components of the absorbent article comprise one or more polyolefins, and wherein at least 5 of the 10 components comprising one or more polyolefins comprise the bio-based polyolefin. ### Claim 17 (depends on 14) The absorbent article of claim 14, wherein at least one of the enumerated components that comprises one or more polyolefins comprises a bio-based polyolefin with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B. ### Claim 18 (depends on 14) The absorbent article of claim 14, wherein at least five of the enumerated components that comprise one or more polyolefins comprise a bio-based polyolefin with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B. ### Claim 19 (depends on 14) The absorbent article of claim 14, wherein the superabsorbent polymers are made at least in part from bio-based acrylic acid having a purity of about 98 weight % acrylic acid and wherein the absorbent article comprises a polyolefin content of at least about 95% by weight, based on the total weight of the absorbent article excluding the core absorbent material.