Composition and method for microbial control on material surfaces

Patent metadata

Field	Value
Publication number	US-2021195892-A1
Application number	US-202017128894-A
Country	US
Kind code	A1
Filing date	Dec 21, 2020
Priority date	Dec 30, 2019
Publication date	Jul 1, 2021
Grant date	—

Abstract

A composition and method for microbial control on a material surface using a minimum risk pesticide such as a GRAS antimicrobial/preservative component. The GRAS antimicrobial/preservative component is preferably an organic acid.

First claim

What is claimed is:

1 . A composition for microbial control on a material surface, the composition comprising:
a polymeric material, and a GRAS additive or component having an antimicrobial or preservative property, wherein the composition exhibits an antimicrobial property.

2 . The composition according to claim 1 , wherein the GRAS additive is a minimum risk pesticide.

3 . The composition according to claim 1 , wherein the GRAS additive is selected from the group consisting of benzoic acid, propionic acid, sorbic acid, citric acid, lactic acid, ascorbic acid, acetic acid, erythorbic acid, fumaric acid, malic acid, glycolic acid, a derivative thereof, and a combination thereof

4 . The composition according to claim 1 , wherein the GRAS additive is a food preservative.

5 . The composition according to claim 1 , wherein the GRAS additive is an organic acid.

6 . The composition according to claim 5 , wherein the organic acid is selected from the group consisting of benzoic acid, propionic acid, sorbic acid, citric acid, lactic acid, ascorbic acid, acetic acid, erythorbic acid, fumaric acid, malic acid, glycolic acid, a derivative thereof, and a combination thereof.

7 . The composition according to claim 6 , wherein the organic acid is selected from the group consisting of benzoic acid, sorbic acid, citric acid, and a combination thereof.

8 . The composition according to claim 1 , further comprising an essential oil.

9 . The composition according to claim 8 , wherein the essential oil is selected from the group consisting of cedarwood oil, tea tree oil ( Melaleuca alternifolia ), Eucalyptus oil ( Eucalyptus globulus or E. radiata ), clove oil ( Eugenia caryophyllata ), oregano oil ( Origanum vulgare ), thyme oil ( Thymus vulgaris ), geranium oil ( Pelargonium graveolens ), cinnamon bark oil ( Cinnamomum zeylanicum ), peppermint oil ( Mentha piperita ), lemongrass oil ( Cymbopogon flexuosus ), basil oil ( Ocimum basilicum ), lavender oil ( Lavandula angustifolia ), lemon oil ( Citrus limon ), rosemary oil ( Salvia rosmarinus ), bergamot oil ( Citrus bergamia ), Perilla oil ( Perilla frutescens ), coriander oil ( Coriandrum sativum ), citron oil ( Citrus medica ), and a combination thereof.

10 . The composition according to claim 1 , further comprising an odor mitigation compound.

11 . The composition according to claim 10 , wherein the odor mitigation compound is selected from the group consisting of a metal oxide, activated carbon, sodium carbonate, calcium carbonate, zinc rincoleate, and a combination thereof.

12 . The composition according to claim 1 , wherein the composition is in a form of a polymeric concentrate.

13 . The composition according to claim 12 , wherein the polymeric concentrate has an active concentration of 1% to 60% by weight of the composition.

14 . The composition according to claim 13 , wherein the active concentration is 5% to 40% by weight of the composition.

15 . The composition according to claim 12 , wherein the polymeric concentrate is a polymeric binder for a coating.

16 . The composition according to claim 15 , wherein the polymeric binder has an active concentration of 0.1% to 40% based on solution % solids.

17 . The composition according to claim 15 , wherein the polymeric binder is acrylic, acrylate, urethane, isocyanate, polyvinylidene chloride (PVDC), polyvinylidene fluoride (PVDF), hexafluoropropylene, carboxymethyl cellulose (CMC), polyvinyl alcohol (PVA), polyvinyl acetate (PVAc), polyamide, polyimide, and a combination thereof.

18 . The composition according to claim 15 , wherein the polymer binder is added in any combination with an oligomer, homopolymer, copolymer or elastomer.

19 . The composition according to claim 15 , wherein the polymer binder is aqueous, non-aqueous, or contains a trace amount of co-solvent.

20 . The composition according to claim 5 , wherein more than one organic acid is used in combination and total weight of active acids is 5% to 40% by weight of the final composition.

21 . The composition according to claim 8 , wherein the essential oil is at a concentration of 1% to 50% by weight of the composition.

22 . The composition according to claim 10 , wherein the odor mitigation compound is at a concentration of 1% to 60% by weight of the composition.

23 . A method for microbial control on a material surface, the method comprising:
incorporating a GRAS additive or component having an antimicrobial or preservative property into a polymeric material.

24 . The method according to claim 21 , wherein the GRAS antimicrobial/preservative component is an organic acid.

25 . The method according to claim 24 , wherein the organic acid is selected from the group consisting of benzoic acid, propionic acid, sorbic acid, citric acid, lactic acid, ascorbic acid, acetic acid, erythorbic acid, fumaric acid, malic acid, glycolic acid, a derivative thereof, and a combination thereof.

26 . The method according to claim 25 , wherein the organic acid is selected from the group consisting of benzoic acid, sorbic acid, citric acid, and a combination thereof.

27 . The method according to claim 23 , further comprising incorporating an essential oil with the GRAS additive or component having an antimicrobial or preservative property.

28 . The method according to claim 27 , wherein the essential oil is selected from the group consisting of cedarwood oil, tea tree oil ( Melaleuca alternifolia ), Eucalyptus oil ( Eucalyptus globulus or E. radiata ), clove oil ( Eugenia caryophyllata ), oregano oil ( Origanum vulgare ), thyme oil ( Thymus vulgaris ), geranium oil ( Pelargonium graveolens ), cinnamon bark oil ( Cinnamomum zeylanicum ), peppermint oil ( Mentha piperita ), lemongrass oil ( Cymbopogon flexuosus ), basil oil ( Ocimum basilicum ), lavender oil ( Lavandula angustifolia ), lemon oil ( Citrus limon ), rosemary oil ( Salvia rosmarinus ), bergamot oil ( Citrus bergamia ), Perilla oil ( Perilla frutescens ), coriander oil ( Coriandrum sativum ), citron oil ( Citrus medica ), and a combination thereof.

29 . The method according to claim 23 , wherein the GRAS additive or component is added in a form of a masterbatch.

30 . The method according to claim 29 , wherein the masterbatch has a low melt polymer or copolymer as a carrier.

31 . The method according to claim 30 , wherein the carrier is compatible with the polymeric material.

32 . The method according to claim 23 , wherein the polymeric material is selected from the group consisting of PP, EMA, polyolefins, SAN, TPU, ABS, PS, and PC and PVC, and a combination thereof.

33 . The method according to claim 23 , further comprising forming an article with the polymeric material having the GRAS additive or component incorporated therein.

34 . The method according to claim 33 , wherein the GRAS additive or component having an antimicrobial or preservative property is present in a range of 0.05% to 10% active concentration by weight of the article.

35 . The method according to claim 30 , wherein an essential oil is present in a range of 0.05% to 5.0% active concentration by weight of the article.

36 . The method according to claim 23 , further compri

Assignees

• Microban Products

Inventors

• Nelson Burke Irving
• Sloan Gina Parise
• Rapley Iii James Marion
• Ha Mai

Classifications

• C09D7/63

  organic · CPC title

• C09D5/14

  Paints containing biocides, e.g. fungicides, insecticides or pesticides (C09D5/16 takes precedence) · CPC title

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title

• C08L91/00

  Compositions of oils, fats or waxes; Compositions of derivatives thereof · CPC title

• C08K5/098

  Metal salts of carboxylic acids · CPC title