Insect and tick repellent formulations and methods of use thereof

Patent metadata

Field	Value
Publication number	US-11627739-B2
Application number	US-201816958102-A
Country	US
Kind code	B2
Filing date	Dec 27, 2018
Priority date	Dec 28, 2017
Publication date	Apr 18, 2023
Grant date	Apr 18, 2023

Abstract

The invention relates to a formulation comprising: 2-undecanone in an amount of about 5% to about 50%; at least one hydrophobic base in an amount of about 5% to about 65%; at least one alcohol in an amount of about 5% to about 50%; and at least one emulsifier in an amount of about 5% to about 15% and methods of repelling insects and ticks by applying to a subject or a substrate a formulation of the invention.

First claim

That which is claimed is:

1. A monophasic formulation comprising:
2-undecanone in an amount of about 5% to about 50% by volume in the formulation;
at least one hydrophobic base in an amount of about 5% to about 65% by volume in the formulation;
at least one alcohol in an amount of about 5% to about 50% by volume in the formulation; and
at least one emulsifier in an amount of about 5% to about 15% by volume in the formulation.

2. The monophasic formulation of claim 1 , further comprising at least one of oil of lemon eucalyptus (OLE), p-menthane-3,8-diol, and/or geraniol.

3. The monophasic formulation of claim 1 , wherein the at least one hydrophobic base is a branched hydrocarbon, an unbranched hydrocarbon, a hydrophobic polymer, a fatty acid, a fatty acid ester, a monoglyceride, a diglyceride, and/or a triglyceride.

4. The monophasic formulation of claim 1 , wherein the at least one hydrophobic base is a plant-based oil, optionally avocado oil, borage oil, canola (rapeseed) oil, castor oil, chamomile oil, coconut oil, corn oil, cottonseed oil, rapeseed oil, evening primrose oil, safflower oil, sunflower oil, soybean oil, sweet almond, palm oil, palm kernel oil, Arctium lappa seed oil, sesame oil, borgo officialis seed oil, Brassica campestris oleifera oil, brevoortia oil, bubulum oil, cistus ladaniferus oil, Elaeis guineensis oil, almond oil, pine oil, olive oil, peanut oil, flax seed oil, wheat germ oil, hemp oil, jojoba oil, linseed oil, macadamia oil, neem oil, argan oil, grape seed oil, thistle oil, and/or algal oil and/or any combination thereof.

5. The monophasic formulation of claim 4 , wherein the plant-based oil is soybean oil, cottonseed oil and/or coconut oil.

6. The monophasic formulation of claim 1 , wherein the at least one alcohol is ethanol, isopropyl alcohol, t-butyl alcohol, propyl alcohol, and/or benzyl alcohol.

7. The monophasic formulation of claim 1 , wherein the at least one alcohol is ethanol, isopropyl alcohol and/or denatured alcohol.

8. The monophasic formulation of claim 1 , wherein the at least one emulsifier is polysorbate 20, sorbitan oleate, potassium sorbate, and/or sodium benzoate.

9. The monophasic formulation of claim 1 , wherein the formulation comprises an equal amount of the at least one alcohol to the at least one hydrophobic base.

10. The monophasic formulation of claim 1 , wherein the formulation comprises the at least one hydrophobic base in an amount that is about two times greater than the amount of the at least one alcohol.

11. The monophasic formulation of claim 1 , wherein the formulation comprises the at least one alcohol in an amount that is about 3% to about 10% (vol./vol.) greater than the amount of the at least one hydrophobic base.

12. The monophasic formulation of claim 1 , wherein the formulation comprises oil of lemon eucalyptus (OLE) in an amount of about 5% to about 15% by volume in the formulation.

13. A product infused with the monophasic formulation of claim 1 , optionally wherein the product is a textile, a plastic, latex, rubber, cellulose, a wick, a candle, paint, a cosmetic, a lotion, a shampoo, a conditioner, and/or a mousse.

14. The product of claim 13 , wherein the textile is clothing, bedding, linens, towels, curtains, draperies, tents, and/or netting.

15. A method of repelling an insect pest or a tick, comprising:
applying the monophasic formulation of claim 1 to a subject or a substrate in an amount effective to repel the insect or tick.

16. The method of claim 15 , wherein the insect is a mosquito, sand fly, filth fly, chigger, flea, black fly, deer fly, horse fly, lice, roach, ant, and/or fire ant.

17. The method of claim 15 , wherein about 90% to about 100% of the insects and/or ticks are repelled, optionally about 95% to about 100% or about 98% to about 100% of the insects and/or ticks are repelled.

18. The method of claim 15 , wherein the insects and/or ticks are repelled for up to about 7 hours after application.

19. The method of claim 15 , wherein the subject is a human.

20. The method of claim 15 , wherein the substrate is fabric, cotton products, clothing, wrist bands, bedding, linens, towels, curtains, draperies, wood products, furniture, carpet, floors, walls, baseboards, netting, paper, water, trash containers, dumps, tents, paint, plants, and/or soil.

Assignees

• Univ North Carolina State
• Mimikai

Inventors

• Roe Richard Michael
• Watson Stephanie
• Beach Heather

Classifications

• A01P17/00

  Pest repellants · CPC title

• Y02A50/30

  Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change · CPC title

• A01N35/02 Primary

  containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals · CPC title

• A01N65/20

  Fabaceae or Leguminosae [Pea or Legume family], e.g. pea, lentil, soybean, clover, acacia, honey locust, derris or millettia · CPC title

• A01N31/02

  Acyclic compounds · CPC title