# US 2024/0301632 A1 · Turf infill material and related turf

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- Number: US 2024/0301632 A1
- Document ID: US20240301632A1
- Status: Published application
- Kind: A1
- Application number: 18/546,337
- Filed: 2022-02-10
- Published: 2024-09-12
- Earliest claimed: 2021-02-12
- Assignees: Mondo S.p.A.
- Applicants: MONDO S.p.A.
- Inventors: Irma NEDI; Emanuele TESTA; Maurizio STROPPIANA
- Web page: https://patentgrep.com/patent/US20240301632A1

## CPC

- E01C 13/08: Surfaces simulating grass {; Grass-grown sports grounds (grass-like surfaces for skiing E01C13/12)}
- C08L 101/16: the macromolecular compounds being biodegradable
- C08L 2666/68: Plasticizers; Solvents
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

Infill material for turf having at least one biodegradable biopolymer, at least one vegetable component and at least one plasticizer.

## Claims

### Claim 1

Turf infill material comprising:
at least one biodegradable biopolymer,
at least one vegetable component,
at least one plasticizer.

### Claim 2 (depends on 1)

Turf infill material according to claim 1, wherein said at least one biodegradable biopolymer is selected from the group consisting of polysaccharides, preferably starch, cellulose, lignin, xanthan curdlan, pullulan; proteins, preferably casein, collagen, gelatin, zein, gluten, chitin; aliphatic polyesters, preferably polylactic acid (PLA), polybutylsuccinate (PBS), polycaprolactone (PCL); aromatic aliphatic copolyesters, preferably polybutyrate-adipate-terephthalate (PBAT); polyhydroxyalkanoates (PHA), preferably (PHB), polyhydroxybutyrate polyhydroxyvaleriate (PHV); polyisoprene or natural rubber; mixtures thereof.

### Claim 3 (depends on 1)

Turf infill material according to claim 1, wherein said at least one biodegradable biopolymer comprises, preferably consists of, at least one of polybutyrate-adipate-terephthalate (PBAT), polylactic acid (PLA), starch, mixtures thereof.

### Claim 4 (depends on 1)

Turf infill material according to claim 1, wherein said at least one biodegradable biopolymer is present in an amount comprised between 20% and 90%, by weight with respect to the weight of the infill material.

### Claim 5 (depends on 1)

Turf infill material according to claim 1, wherein said at least one vegetable component comprises at least one of lignin, cellulose, hemicellulose, mixtures thereof.

### Claim 6 (depends on 1)

Turf infill material according to claim 1, wherein said at least one vegetable component comprises, preferably consists of, wood flour, deriving from the processing of conifers and broad-leaved trees.

### Claim 7 (depends on 1)

Turf infill material according to claim 1, wherein said at least one vegetable component is present in the form of a powder, said powder comprising particles having a size between 75 micrometers and 500 micrometers (μm).

### Claim 8 (depends on 1)

Turf infill material according to claim 1, wherein said at least one vegetable component is present in an amount comprised between 5% and 70% by weight with respect to the weight of the infill material.

### Claim 9 (depends on 1)

Turf infill material according to claim 1, wherein said at least one plasticizer is selected from the group consisting of glycols, sulfonamides, fatty acids, adipates, amides, amines, glyceryl esters, esters, glycerol, sorbitol, diphenylamine, dibutyl sebacate, triphenyl phosphate, citrates, preferably acetyl tributyl citrate (ATBC), vegetable oils, preferably selected from epoxidized soybean oil (ESBO), epoxidized linseed oil (ELO), castor oil, palm oil, cardamom oil, starches, sugars, mixtures thereof, preferably aqueous mixtures thereof.

### Claim 10 (depends on 1)

Turf infill material according to claim 1, wherein said at least one plasticizer is selected from epoxidized soybean oil (ESBO), acetyl tributyl citrate (ATBC), cardamom oil, mixtures thereof.

### Claim 11 (depends on 1)

Turf infill material according to claim 1, wherein said at least one plasticizer is present in an amount comprised between 5% and 60%, weight with respect to the weight of the infill material.

### Claim 12 (depends on 1)

Turf infill material according to claim 1, further comprising at least one inorganic filler, preferably selected from the group consisting of calcium carbonate, talc, silica, mixtures thereof.

### Claim 13 (depends on 12)

Turf infill material according to claim 12, wherein said at least one inorganic filler is present in an amount comprised between 5% and 40% by weight with respect to the weight of the infill material.

### Claim 14 (depends on 1)

Turf infill material according to claim 1, further comprising at least one hydrogel.

### Claim 15 (depends on 14)

Turf infill material according to claim 14, wherein said hydrogel is selected from the group consisting of agar, starch; polyacrylates, polyacrylamides, mixtures thereof.

### Claim 16 (depends on 1)

Turf comprising a substrate with a plurality of filiform formations extending from a substrate, and an infill material according to claim 1, dispersed between said filiform formations.

### Claim 17 (depends on 4)

Turf infill material according to claim 4 wherein said at least one biodegradable biopolymer is present in an amount comprised between 25% and 75%.

### Claim 18 (depends on 8)

Turf infill material according to claim 8 wherein said at least one vegetable component is present in an amount comprised between 10% and 60%.

### Claim 19 (depends on 11)

Turf infill material according to claim 11 wherein said at least one plasticizer is present in an amount comprised between 15% and 50% by weight with respect to the weight of the infill material.

### Claim 20 (depends on 13)

Turf infill material according to claim 13, wherein said at least one inorganic filler is present in an amount comprised between 10% and 35% by weight with respect to the weight of the infill material.
