# US 12,109,093 B2 · Beamed elastic laminate properties

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- Number: US 12,109,093 B2
- Document ID: US12109093B2
- Status: Granted
- Kind: B2
- Application number: 17/205,418
- Filed: 2021-03-18
- Published: 2021-07-08
- Granted: 2024-10-08
- Earliest claimed: 2016-12-20
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Gary Dean LaVon; Uwe Schneider; Bret Darren Seitz; Sarah Marie Wade; Joseph Allen Eckstein
- Web page: https://patentgrep.com/patent/US12109093B2

## CPC

- A61F 13/4902: {characterised by the elastic material}
- A61F 13/15593: {having elastic ribbons fixed thereto; Devices for applying the ribbons}
- A61F 13/49061: {the diaper having one or two waist members forming the diaper waist region and an independent absorbent structure attached to the one or two waist members forming the crotch region}
- A61F 13/15601: {the ribbons being applied transversely to the direction of the movement of the webs the diapers are being made of}
- A61F 13/15699: {Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs}
- A61F 13/15739: {Sealing, e.g. involving cutting}
- A61F 13/15764: {Transferring, feeding or handling devices; Drives}
- A61F 13/49012: {the elastic means being elastic panels}
- A61F 13/49015: {the elastic means being elastic panels}
- A61F 13/49017: {the elastic means being located at the crotch region}
- A61F 13/49019: {the elastic means being placed longitudinally, transversely or diagonally over the article}
- A61F 13/53: characterised by the absorbing medium (A61F13/20 takes precedence)
- A61F 13/5622: {specially adapted for diapers or the like}
- A61F 13/64: Straps, belts, ties or endless bands ({A61F13/5605, A61F13/5622}, A61F13/66 take precedence)
- A61F 2013/15292: {Resistance, i.e. modulus or strength}
- A61F 2013/15373: {Calliper, i.e. thickness}
- A61F 2013/15406: {Basis weight}
- A61F 2013/15447: {Fibre dimension, e.g. denier or tex}
- A61F 2013/1552: {with specific diffusion velocity}
- A61F 2013/15552: {Air permeability}
- A61F 2013/15869: {with ultrasonic energy}
- A61F 2013/1591: {via adhesive}
- A61F 2013/15918: {for die cutting}
- A61F 2013/15959: {by spunbond technique}
- A61F 2013/49022: {being elastomeric sheet}
- A61F 2013/49025: {having multiple elastic strands}
- A61F 2013/49026: {with variable spacing}
- A61F 2013/49074: {hourglass; dog bone-shaped}
- A61F 2013/49092: {comprising leg cuffs}
- A61F 2013/49093: {having multiple barriers}
- A61F 2013/51322: {being elastomeric or stretchable}
- A61F 2013/530343: {being natural fibres}
- A61F 2013/53043: {with different ratio of components}
- A61F 2013/8497: {having decorations or indicia means}
- B05C 1/0808: {Details thereof, e.g. surface characteristics}
- B29C 65/08: using ultrasonic vibrations {(non-plastics element to plastics elements B29C65/645)}
- B29C 65/086: {using a rotary anvil}
- B29C 65/48: using adhesives {, i.e. using supplementary joining material; solvent bonding}
- B29C 65/74: by welding and severing {, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area}
- B29C 66/00: {General aspects of processes or apparatus for joining preformed parts (means for handling the parts to be joined B29C65/78; testing the joint B29C65/82)}
- B29C 66/01: {General aspects dealing with the joint area or with the area to be joined (B29C65/76, B29C65/82 take precedence)}
- B29C 66/344: {Stretching or tensioning the joint area during joining}
- B29C 66/8141: {characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined}
- B29C 66/83411: {Roller, cylinder or drum types (B29C66/83431 takes precedence; rollers, cylinders or drums moving relative to and tangentially to the parts to be joined B29C66/8362)}
- B29K 2701/12: Thermoplastic materials
- B29K 2995/0046: Elastic
- B29L 2031/4878: {Diapers, napkins}
- B32B 5/04: characterised by a layer being specifically extensible by reason of its structure or arrangement {, e.g. by reason of the chemical nature of the fibres or filaments}
- B32B 27/12: next to a fibrous or filamentary layer
- B32B 37/0053: {Constructional details of laminating machines comprising rollers; Constructional features of the rollers}
- B32B 37/12: characterised by using adhesives
- B32B 37/144: {using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding (constructional features for tensioning B32B38/1825)}
- B32B 37/22: involving the assembly of both discrete and continuous layers
- B32B 2305/20: in the form of a non-woven mat
- B32B 2307/51: Elastic
- B32B 2307/726: Permeability to liquids, absorption
- B32B 2555/02: Diapers or napkins
- B65H 39/16: Associating two or more webs
- B65H 51/30: Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus (B65H59/10, B65H59/38 take precedence)
- C08J 2300/26: Elastomers
- D01D 5/08: Melt spinning methods {(D01D5/0023 takes precedence)}
- D01F 6/04: from polyolefins
- D04H 3/12: with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
- 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)
- B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- D01D: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01F: CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D04H: MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL (weaving D03; knitting D04B; braiding D04C; net-making D04G; sewing D05B; tufting D05C; finishing non-woven fabrics D06); FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING {; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION}(non-woven fabrics having an intermediate or external layer of a different kind, e.g. of woven fabric, B32B)

## Abstract

The present disclosure relates to one or a combination of an absorbent article's chassis, inner leg cuffs, outer leg cuffs, ear panels, side panels, waistbands, and belts that may comprise one or more pluralities of tightly spaced and/or low Average-Dtex and/or low Average-Pre-Strain elastics to deliver low Pressure Under Strand, while providing adequate Section-Modulus to make the article easy to apply and to comfortably maintain the article in place on the wearer, even with a loaded core, to provide for the advantages described above. Further, the elastomeric laminates of the present disclosure outperform existing laminates currently used for disposable absorbent articles as it relates to one or more key parameters (including Percent Contact Area, 2-98% Height Value, Pressure-Under-Strand, Air Permeability, Water Vapor Transmission Rate, Caliper, Caliper Retention Value, Cantilever Bending, Open Area, Section-Modulus, Rugosity Wavelength, Rugosity Frequency, Graphic Distortion Ratio).

## Claims

### Claim 1

An absorbent article, comprising:
a chassis comprising a topsheet, a backsheet and an absorbent core disposed between the topsheet and the backsheet;
an elastomeric laminate forming at least a portion of an article component selected from the group consisting of a waistband, waistcap, inner leg cuff, outer leg cuff, a transverse barrier, and combinations thereof;
wherein the elastomeric laminate comprising a first substrate layer and a second substrate layer and a plurality of elastics disposed between the first substrate layer and the second substrate layer;
wherein the plurality of elastics comprises from about 10 to about 400 elastic strands, an Average-Strand-Spacing from about 0.25 mm to about 4 mm, an Average-Dtex from about 10 to about 500, and an Average-Pre-Strain from about 50% to about 400%;
the first substrate layer and second substrate layer each having a Basis Weight from about 6 grams per square meter to about 30 grams per square meter;
wherein the elastomeric laminate has a 2%-98% Height Value of <1.6 mm.

### Claim 2 (depends on 1)

The absorbent article of claim 1, wherein the plurality of elastics comprises from about 20 to about 225 elastic strands.

### Claim 3 (depends on 1)

The absorbent article of claim 1, wherein the plurality of elastics comprises an Average-Strand-Spacing from about 0.5 mm to about 3.0 mm.

### Claim 4 (depends on 1)

The absorbent article of claim 1, wherein the plurality of elastics comprises an Average-Dtex from about 30 to about 400.

### Claim 5 (depends on 1)

The absorbent article of claim 1, wherein the plurality of elastics comprises an Average-Pre-Strain from about 75% to about 300%.

### Claim 6 (depends on 1)

The absorbent article of claim 1, wherein the elastomeric laminate has an Average Pressure Under Strand from about 0.1 psi to about 1 psi.

### Claim 7 (depends on 1)

The absorbent article of claim 1, wherein the elastomeric laminate has an Air Permeability of at least one of: a) greater than about 40 cubic meters/square meter/minute Air Permeability at 0 gf/mm (no extension); b) greater than about 60 cubic meters/square meter/minute Air Permeability at 3 gf/mm (slight extension); and c) greater than about 80 cubic meters/square meter/minute Air Permeability at 7 gf/mm (moderate extension).

### Claim 8 (depends on 1)

The absorbent article of claim 1, wherein the elastomeric laminate has a Water Vapor Transmission Rate of greater than 4000 g/m2/24 hrs.

### Claim 9 (depends on 1)

The absorbent article of claim 1, wherein the elastomeric laminate has a Caliper of at least one of: a) from about 0.5 mm to about 4 mm Caliper at 0 gf/mm (no extension); b) from about 60% to about 95% Caliper Retention Value at 3 gf/mm (slight extension); and c) from about 40% to about 90% Caliper Retention Value at 7 gf/mm (moderate extension).

### Claim 10 (depends on 1)

The absorbent article of claim 1, wherein the elastomeric laminate has a Cantilever Bending of less than about 40 mm.

### Claim 11 (depends on 2)

The absorbent article of claim 2, wherein the elastomeric laminate has a Rugosity Frequency of from about 0.2 mm−1 to about 1 mm−1 and a Rugosity Wavelength of from about 0.5 mm to about 5 mm.

### Claim 12 (depends on 1)

The absorbent article of claim 1, wherein the plurality of elastics comprises from about 30 to about 400 elastic strands.