Antibacterial liquid, antibacterial film, spray and cloth

Patent metadata

Field	Value
Publication number	US-12052988-B2
Application number	US-202217902109-A
Country	US
Kind code	B2
Filing date	Sep 2, 2022
Priority date	Aug 25, 2015
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

Provided is an antibacterial liquid with excellent temporal stability in which caking due to sedimentation of solid components does not occur and with which a film capable of stably maintaining antibacterial properties can be formed, in a case of being formed into a film. Also provided are an antibacterial film formed using the antibacterial liquid, and a spray and a cloth including the antibacterial liquid. The antibacterial liquid includes an antibacterial microparticle, a binder, and a solvent, in which the antibacterial microparticle contains a silver-supporting inorganic oxide, the binder includes at least one compound having a siloxane bond, the solvent includes an alcohol and water, the concentration of solid contents is less than 5% by mass with respect to the total mass of the antibacterial liquid, and the content of the compound having a siloxane bond is 60% by mass or more with respect to the total solid content of the antibacterial liquid.

First claim

What is claimed is:

1. An antibacterial liquid comprising: an antibacterial microparticle; a binder; a nonionic surfactant; an ionic surfactant; and a solvent,
wherein the antibacterial microparticle contains a silver-supporting inorganic oxide,
the binder includes at least one compound having a siloxane bond,
the solvent includes an alcohol and water,
the concentration of solid contents is less than 5% by mass with respect to the total mass of the antibacterial liquid,
the content of the compound having a siloxane bond is 60% by mass or more with respect to the total solid content of the antibacterial liquid, and
the compound having a siloxane bond is a siloxane compound represented by General Formula (1),

wherein R 1 to R 4 each independently represents an organic group having 1 to 6 carbon atoms and n represents an integer from 2 to 100.

2. The antibacterial liquid according to claim 1 , wherein the average particle size of the silver-supporting inorganic oxide is 0.05 μm or more and less than 1.0 μm.

3. The antibacterial liquid according to claim 1 , wherein the silver-supporting inorganic oxide is silver-supporting glass.

4. An antibacterial film formed using the antibacterial liquid according to claim 1 .

5. The antibacterial film according to claim 4 , which is not removable by a solution having a pH of 11 or lower.

6. A spray comprising the antibacterial liquid according to claim 1 .

7. A cloth comprising the antibacterial liquid according to claim 1 .

8. The antibacterial liquid according to claim 2 , wherein the silver-supporting inorganic oxide is silver-supporting glass.

9. An antibacterial film formed using the antibacterial liquid according to claim 2 .

10. An antibacterial film formed using the antibacterial liquid according to claim 3 .

11. A spray comprising the antibacterial liquid according to claim 2 .

12. A spray comprising the antibacterial liquid according to claim 3 .

13. A cloth comprising the antibacterial liquid according to claim 2 .

14. A cloth comprising the antibacterial liquid according to claim 3 .

Assignees

• Fujifilm Corp

Inventors

• Sato Naotoshi
• Hamano Mitsumasa

Classifications

• C09D183/04

  Polysiloxanes · CPC title

• C09D183/00

  Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers · CPC title

• C09D5/14

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

• C08L83/04

  Polysiloxanes · CPC title

• C08K9/12

  Adsorbed ingredients {, e.g. ingredients on carriers} · CPC title