IP Library Granted Patent US 12,286,748
Granted Patent B2
US 12,286,748 · App. 18/901,331 · Granted Apr 29, 2025

Textile coating composition that reduces and/or prevents microbial growth and/or control odor(s) for prolonged time periods

Inventors: Xiuzhu Fei (Charlotte, NC); Yihong Li (Huntersville, NC)
Assignee: MICROBAN PRODUCTS COMPANY
D06M13/2035D06M11/79D06M15/03D06M2101/32D10B2331/04D10B2401/13
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Quick Facts
Patent No.
US 12,286,748
App. No.
18/901,331
Granted
Apr 29, 2025
Kind
B2
Abstract

Antimicrobial and/or anti-odor textile coating composition that reduce and/or prevent bacterial growth and/or control odor(s) on a textile material treated for a prolonged time period including up to, for example, fifty wash cycles. The textile coating compositions may include benzoic acid and at least one of terephthalic acid, and/or a quat silane.

Claims (39)

1. An antimicrobial and/or anti-odor, textile coating composition that reduces and/or prevents microbial growth and/or controls odor(s) on a textile material comprising:

(a) benzoic acid at a concentration of 5 weight % to 50 weight % based on the total weight of the composition;

(b) terephthalic acid at a concentration of 5 weight % to 20 weight % based on the total weight of the composition;

(c) water; and

(d) at least one of a dispersant, defoamer, rheology modifier, or any combination thereof,

wherein the benzoic acid and the terephthalic acid are present in the composition at a ratio of 2:1 to 8:1.

2. The antimicrobial and/or anti-odor, textile coating composition according to claim 1 , wherein the water is present in the textile coating composition from 30 weight % to 50 weight % based on the total weight of the composition.

3. The antimicrobial and/or anti-odor, textile coating composition according to claim 1 , wherein the dispersant is present in the textile coating composition from 1 weight % to 12 weight % based on the total weight of the composition to aid in dispersing the textile coating composition.

4. The antimicrobial and/or anti-odor, textile coating composition according to claim 1 , wherein the defoamer is present in the textile coating composition from 0.05 weight % to 1 weight % based on the total weight of the composition.

5. The antimicrobial and/or anti-odor, textile coating composition according to claim 1 , wherein the rheology modifier is present in the textile coating composition.

6. The antimicrobial and/or anti-odor, textile coating composition according to claim 5 , wherein the rheology modifier comprises magnesium aluminum silicate or xanthan gum.

7. The antimicrobial and/or anti-odor, textile coating composition according to claim 6 , wherein the rheology modifier is present in the textile coating composition from 0.05 weight % to 0.9 weight % based on the total weight of the composition.

8. The antimicrobial and/or anti-odor, textile coating composition according to claim 5 , wherein the rheology modifier comprises a first rheology modifier and a second rheology modifier.

9. The antimicrobial and/or anti-odor, textile coating composition according to claim 8 , wherein the first rheology modifier comprises magnesium aluminum silicate or xanthan gum.

10. The antimicrobial and/or anti-odor, textile coating composition according to claim 8 , wherein the first rheology modifier is present in the textile coating composition from 0.1 weight % to 0.5 weight % based on the total weight of the composition.

11. The antimicrobial and/or anti-odor, textile coating composition according to claim 10 , wherein the first rheology modifier is present in the textile coating composition from 0.2 weight % to 0.4 weight % based on the total weight of the composition.

12. The antimicrobial and/or anti-odor, textile coating composition according to claim 8 , wherein the second rheology modifier comprises magnesium aluminum silicate or xanthan gum.

13. The antimicrobial and/or anti-odor, textile coating composition according to claim 12 , wherein the second rheology modifier is present in the textile coating composition from 0.05 weight % to 0.3 weight % based on the total weight of the composition.

14. The antimicrobial and/or anti-odor, textile coating composition according to claim 13 , wherein the second rheology modifier is present in the textile coating composition from 0.1 weight % to 0.2 weight % based on the total weight of the composition.

15. The antimicrobial and/or anti-odor, textile coating composition according to claim 8 , wherein the first rheology modifier and the second rheology modifier are present in the textile coating composition at a ratio ranging from 5:1 to 1:2 relative to one another.

16. The antimicrobial and/or anti-odor, textile coating composition according to claim 15 , wherein the first rheology modifier and the second rheology modifier are present in the textile coating composition at a ratio ranging from 3:1 to 1:1 relative to one another.

17. An antimicrobial and/or anti-odor, textile coating composition comprising:

(a) the composition according to claim 1 in an amount from 0.5 weight % to 25 weight %; and

(b) water.

18. A textile material having the antimicrobial and/or anti-odor, textile coating composition according to claim 1 applied thereon, wherein the textile material reduces bacterial growth by a 3 log reduction or greater when compared with an untreated textile material.

19. The textile material according to claim 18 , wherein benzoic acid forms an outermost layer and terephthalic acid forms an intermediary layer positioned between the benzoic acid and the textile material having the textile coating composition applied thereon.

20. The textile material according to claim 18 , wherein the textile material reduces bacterial growth by a 3 log reduction or greater after twenty-five home launderings when compared with an untreated textile material.

21. The textile material according to claim 18 , wherein the textile material comprises polyester.

22. The textile material according to claim 18 , wherein the antimicrobial and/or anti-odor, textile coating composition is present on the textile from 0.3 weight % to 37.5 weight % on weight of fabric.

23. The textile material according to claim 18 , wherein the textile material comprises benzoic acid from 0.12 weight % to 15 weight % based on weight of fabric.

24. The textile material according to claim 18 , wherein the textile material comprises terephthalic acid from 0.024 weight % to 3 weight % based on weight of fabric.

25. A method of reducing and/or preventing microbial growth and/or odor on a textile material, the method comprising:

(a) applying the antimicrobial and/or anti-odor, textile coating composition according to claim 1 to a textile material;

wherein, applying the antimicrobial and/or anti-odor, textile coating composition comprises padding or exhaustion of the composition onto the textile material to obtain a treated textile material that resists the growth of microbes and controls odor on the textile for a prolonged period of time.

26. The method according to claim 25 , further comprising, prior to step (a), adding the antimicrobial and/or anti-odor, textile coating composition according to claim 1 to water to create an application bath.

27. The method according to claim 26 , further comprising adding a dispersant to the application bath, heating the mixture, or a combination thereof.

28. The method according to claim 25 , wherein the antimicrobial and/or anti-odor, textile coating composition is applied to the textile from 0.3 weight % to 37.5 weight % on weight of fabric.

29. The method according to claim 25 , wherein the benzoic acid is applied to the treated textile from 0.12 weight % to 15 weight % on weight of fabric.

30. The method according to claim 25 , wherein the terephthalic acid is applied to the treated textile from 0.024 weight % to 3 weight % on weight of fabric.

Assignments (2)
SECURITY INTEREST Recorded Dec 10, 2025
From: MICROBAN PRODUCTS COMPANY
To: FIFTH THIRD BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 073176/0547 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 2, 2024
From: FEI, XIUZHU; LI, YIHONG
To: MICROBAN PRODUCTS COMPANY
Reel/Frame 068772/0212 →