# US 2022/0323633 A1 · Stretch nonwovens and films

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- Number: US 2022/0323633 A1
- Document ID: US20220323633A1
- Status: Published application
- Kind: A1
- Application number: 17/854,713
- Filed: 2022-06-30
- Published: 2022-10-13
- Earliest claimed: 2016-09-07
- Assignees: The LYCRA Company LLC
- Applicants: The Lycra Company LLC
- Inventors: Kofi BISSAH; Michael D. GILBERT
- Web page: https://patentgrep.com/patent/US20220323633A1

## CPC

- A61F 13/4902: {characterised by the elastic material}
- A61L 15/42: Use of materials characterised by their function or physical properties (liquid bandages A61L26/00)
- A61L 15/30: Rubbers or their derivatives {(A61L15/225 takes precedence)}
- D06N 3/0011: {using non-woven fabrics}
- D06N 3/143: {with polyurethanes and other polycondensation or polyaddition products, e.g. aminoplast}
- A61L 2420/00: Materials or methods for coatings medical devices
- D06N 2209/126: Permeability to liquids, absorption
- D06N 2209/1635: Elasticity
- 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)
- D06N: WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR

## Abstract

Elastic polymer compositions that provide stretch recovery to absorbent fabrics and products produced from these absorbent fabrics and methods for their production are provided.

## Claims

### Claim 1

A method for enhancing stretch recovery of an absorbent fabric, said method comprising dispersion printing an elastic polymer composition that provides stretch recovery to an absorbent fabric or a product produced from an absorbent fabric on an absorbent fabric, said elastic polymer composition comprising a polymer coated stretch nonwoven or a polymer coated stretch film.

### Claim 2 (depends on 1)

The method of claim 1 wherein the stretch nonwoven comprises polypropylene, polyethylene, polyethylene terephthalate or a combination or blend thereof.

### Claim 3 (depends on 1)

The method of claim 1 wherein the polymer coating comprises polyurethane, latex or rubber solution, and/or styrene block co-polymer.

### Claim 4 (depends on 1)

The method of claim 1 wherein the elastic polymer composition exhibits elongation from about 5% to about 2000%.

### Claim 5 (depends on 1)

The method of claim 1 wherein the elastic polymer composition exhibits elongation from about 5% to about 200%.

### Claim 6 (depends on 1)

The method of claim 1 wherein the elastic polymer composition exhibits elongation from about 200% about 400%.

### Claim 7 (depends on 1)

The method of claim 1 wherein the elastic polymer composition exhibits elongation from about 400% to about 2000%.

### Claim 8 (depends on 1)

The method of claim 1 wherein the absorbent fabric is used in a disposable personal care item.

### Claim 9 (depends on 8)

The method of claim 8 wherein the disposable personal care item is a diaper, a feminine hygiene product, an incontinence pad, nursing pad, wipes, breast pads, mattress pads, dusting pads, or facial mask.