# US 12,004,929 B2 · Tampon product including applicator having components molded of pulp-based composite > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,929 B2 - Document ID: US12004929B2 - Status: Granted - Kind: B2 - Application number: 17/700,563 - Filed: 2022-03-22 - Published: 2022-09-22 - Granted: 2024-06-11 - Earliest claimed: 2021-03-22 - Assignees: The Procter & Gamble Company - Applicants: The Procter & Gamble Company - Inventors: David Daniel Lake; Ryo Minoguchi; Khalid Qureshi; Paul Thomas Weisman; Keisuke Matsuzaka; Tetsu Nishikawa - Web page: https://patentgrep.com/patent/US12004929B2 ## CPC - A61F 13/266: {Insertion devices, e.g. rods or plungers, separate from the tampon} - A61F 13/2082: {Apparatus or processes of manufacturing} - 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 A tampon applicator assembly is disclosed. The applicator assembly may include a barrel portion, a grip portion and an ejection plunger configured to slide coaxially within one or both the barrel portion and the grip portion. One or more of the barrel portion, grip portion and ejection plunger may be molded from a molding composite comprising cellulose fibers. ## Claims ### Claim 1 A tampon applicator assembly comprising a barrel portion, a grip portion and an ejection plunger configured to slide coaxially within one or both the barrel portion and the grip portion, wherein one or both of the barrel portion and grip portion is/are molded from a molding composite comprising cellulose fibers, and wherein the molded one or both of the barrel portion and the grip portion have a mean void thickness of 50 μm to 300 μm. ### Claim 2 (depends on 1) The applicator assembly of claim 1 wherein said one or both of the molded barrel portion and/or grip portion has a dry void space fraction from 6 percent to 40 percent. ### Claim 3 (depends on 1) The applicator assembly of claim 1 wherein the cellulose fibers comprise hardwood pulp fibers and softwood pulp fibers in a dry weight ratio of hardwood pulp fibers to softwood pulp fibers of 1:2 to 3:1. ### Claim 4 (depends on 3) The applicator assembly of claim 3 wherein the softwood fibers are selected from the group consisting of spruce fibers, pine fibers, fir fibers, larch fibers, hemlock fibers and white pine fibers, and combinations thereof. ### Claim 5 (depends on 3) The applicator assembly of claim 3 wherein the hardwood fibers are selected from the group consisting of eucalyptus fibers, aspen fibers, poplar fibers, maple fibers, birch fibers, beech fibers and ash fibers, and combinations thereof. ### Claim 6 (depends on 1) The applicator assembly of claim 1 wherein the molding composite comprises a binder, the binder comprising a polysaccharide derived from plant matter. ### Claim 7 (depends on 6) The applicator assembly of claim 6 wherein the polysaccharide comprises a starch, the starch constituting from about 2 percent to about 20 percent of the weight of the molding composite, excluding water content. ### Claim 8 The applicator assembly of any of the preceding claims wherein the molding composite comprises a dispersing agent, the dispersing agent comprising particles that are hydrophilic and form a gel upon contact with water. ### Claim 9 (depends on 8) The applicator assembly of claim 8 wherein the dispersing agent comprises CMC salt, and wherein the dispersing agent constituting from 15 weight percent to 23 weight percent of the molding composite. ### Claim 10 (depends on 1) The applicator assembly of claim 1 wherein the cellulose fibers constitute 55 percent to 85 percent of the weight of the molding composite, excluding water content. ### Claim 11 (depends on 1) The applicator assembly of claim 1 wherein the molding composite comprises a lubricating agent comprising a compound selected from the group consisting of calcium stearate, magnesium stearate, zinc stearate, calcium laurate, magnesium laurate, zinc laurate, aluminum laurate, strontium laurate, aluminum stearate, strontium stearate and combinations thereof. ### Claim 12 (depends on 11) The applicator assembly of claim 11 wherein the lubricating agent is included in an amount from 0.3 to 2.0 percent, by weight of the molding composite, excluding water content. ### Claim 13 (depends on 1) The applicator assembly of claim 1 wherein the one or both of the barrel portion and/or grip portion has/have a water content of 5 to 13 weight percent. ### Claim 14 (depends on 1) The applicator assembly of claim 1 wherein the one or both the molded portion(s) is/are molded in at least two separately molded subparts that have been joined together following molding, wherein the subparts that have been joined together have been joined without application of any substantial quantity of added glue or adhesive material. ### Claim 15 (depends on 1) The applicator assembly of claim 1 wherein the grip portion is molded from the molding composite. ### Claim 16 (depends on 15) The applicator assembly of claim 15 wherein the barrel portion comprises a length of tube formed of paper, and is joined to the grip portion. ### Claim 17 (depends on 1) The applicator assembly of claim 1 wherein one, two or all of the barrel portion, grip portion and ejection plunger contain(s) less than 10 percent by weight petroleum, petroleum derivatives and/or plastics with petroleum or petroleum-derived components or precursor materials. ### Claim 18 (depends on 1) The applicator assembly of claim 1 wherein one, two or all of the barrel portion, grip portion and ejection plunger is/are recyclable and exhibit(s) a recyclable percentage of at least 70 percent in application of the recyclability test cited herein. ### Claim 19 (depends on 1) The applicator assembly of claim 1 wherein one, two or all of the barrel portion, grip portion and ejection plunger exhibit(s) at least 75 percent biodegradation in a marine environment within about 400 days when tested using the marine biodegradability test, and/or, exhibit(s) at least 75 percent biodegradation in a landfill environment within about 400 days when tested using the landfill biodegradability test. ### Claim 20 A tampon applicator assembly comprising a barrel portion, a grip portion and an ejection plunger configured to slide coaxially within one or both the barrel portion and the grip portion, wherein at least one of the barrel portion, the grip portion, and the ejection plunger is molded from a molding composite comprising cellulose fibers, and wherein the molded at least one of the barrel portion, the grip portion, and the ejection plunger have a mean void thickness of 50 μm to 300 μm and a dry void space fraction from about 6 percent to about 40 percent.