# US 12,004,510 B2 · Pest-resistant irrigation tube

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- Number: US 12,004,510 B2
- Document ID: US12004510B2
- Status: Granted
- Kind: B2
- Application number: 17/257,700
- Filed: 2019-06-27
- Published: 2021-09-23
- Granted: 2024-06-11
- Earliest claimed: 2018-07-11
- Assignees: Dow Global Technologies LLC
- Applicants: Dow Global Technologies LLC
- Inventors: Rachel C. Anderson; Mohamed Esseghir; Mark T. Jablonka
- Web page: https://patentgrep.com/patent/US12004510B2

## CPC

- A01N 25/10: Macromolecular compounds
- A01G 25/02: Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
- A01M 29/12: using odoriferous substances, e.g. aromas, pheromones or chemical agents
- A01N 25/34: Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
- A01N 37/18: containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N 37/44: containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- Y02A 40/22: Improving land use; Improving water use or availability; Controlling erosion
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12)
- A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

The present disclosure provides a composition. In an embodiment, the composition includes a pest repellent, a barrier polymer, and an ethylene-based polymer. The barrier polymer has a melt temperature, Tm, from 175° C. to less than 270° C. The barrier polymer is selected from the group consisting of one or more polyamides, one or more polyesters, and combinations thereof. Also disclosed is an irrigation tube having an annular wall. The annular wall is composed of the present composition.

## Claims

### Claim 1

An irrigation tube comprising:
an annular wall formed from a composition comprising
a pest repellent;
a barrier polymer having a melt temperature, Tm, from 175° C. to less than 270° C., the barrier polymer selected from the group consisting of one or more polyamides, one or more polyesters, and combinations thereof;
an ethylene-based polymer, and
wherein the pest repellent is mixed into the barrier polymer to form a repellent-barrier mix; and
particles of the repellent-barrier mix are dispersed within the ethylene-based polymer.

### Claim 2 (depends on 1)

The irrigation tube of claim 1 wherein the pest repellent is a gustatory repellent.

### Claim 3 (depends on 2)

The irrigation tube of claim 2 wherein the pest repellent is at least one of a capsaicinoid or a denatonium salt.

### Claim 4 (depends on 1)

The irrigation tube of claim 1 wherein the barrier polymer is one or more polyesters.

### Claim 5 (depends on 1)

The irrigation tube of claim 1 comprising a compatibilizing polymer selected from the group consisting of a maleated polyolefin, an acrylate-based polymer, a maleated acrylate-based polymer, a zinc ionomer, an acid copolymer, an ethylene vinyl acetate polymer, and combinations thereof.

### Claim 6 (depends on 4)

The irrigation tube of claim 4 wherein the one or more polyesters is selected from the group consisting of polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polytrimethylene terephthalate, and polyethylene napthalate, amorphous copolyester, polyethylene terephthalate glycol (PETG), and any combination thereof.

### Claim 7 (depends on 1)

The irrigation tube of claim 1 wherein the composition comprises from 0.05 wt % to 0.5 wt % of the pest repellent.

### Claim 8 (depends on 7)

The irrigation tube of claim 7 wherein the composition comprises from 1 wt % to 10 wt % of the barrier polymer.

### Claim 9 (depends on 8)

The irrigation tube of claim 8 wherein the composition comprises from 79.5 wt % to 97.95 wt % of the ethylene-based polymer.

### Claim 10 (depends on 9)

The irrigation tube of claim 9 wherein the composition comprises from 1 wt % to 10 wt % of a compatibilizing polymer.

### Claim 11 (depends on 10)

The irrigation tube of claim 10 wherein the compatibilizing polymer is selected from the group consisting of a maleated polyolefin, an acrylate-based polymer, a maleated acrylate-based polymer, a zinc ionomer, an acid copolymer, an ethylene vinyl acetate polymer, and combinations thereof.