Anti-microbial coating and method to form same

• US 9,918,475 B2
• Filed: 02/11/2016
• Issued: 03/20/2018
• Est. Priority Date: 02/11/2015
• Status: Active Grant

• Current Assignee: SRFC Bio Incorporated
• Original Assignee: Allied Bioscience, Inc.
• Inventors: Moros, Daniel, Grossman, Craig
• Primary Examiner(s): Moore, Margaret G
• Application Number:
  US15/041,974
• Publication Number:
  US 20160262398A1
• Time in Patent Office: 768 Days
• Field of Search: 10628711
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/02 containing liquids as carriers, diluents or solvents
• CPC Class Codes: A01N 33/08 containing oxygen or sulfur
• CPC Class Codes: A01N 55/00 Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur containing organo-phosphorus compounds A01N57/00
• CPC Class Codes: A01N 59/16 Heavy metals; Compounds thereof
• CPC Class Codes: A61L 2/00 Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for contact lenses A61L12/00; atomisers for disinfecting agents A61M; sterilisation of packages or package contents in association with packaging B65B55/00; treatment of water, waste water, sewage or sludge C02F; disinfecting paper D21H21/36; disinfecting devices for water closets E03D; articles having provision for disinfection, see the relevant subclasses for these articles, e.g. H04R1/12
• CPC Class Codes: B05D 1/02 performed by spraying
• CPC Class Codes: B05D 1/04 involving the use of an electrostatic field B05D1/025 and B05D1/14 take precedence
• CPC Class Codes: B05D 7/14 to metal, e.g. car bodies involving a chemical reaction between the metal and the coating C23
• CPC Class Codes: B05D 7/544 the first layer is let to dry at least partially before applying the second layer
• CPC Class Codes: C08G 77/26 nitrogen-containing groups
• CPC Class Codes: C08K 2003/2241 Titanium dioxide
• CPC Class Codes: C08K 3/22 of metals
• CPC Class Codes: C09D 179/02 Polyamines
• CPC Class Codes: C09D 183/00 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 Class Codes: C09D 183/08 containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
• CPC Class Codes: C09D 5/14 Paints containing biocides, e.g. fungicides, insecticides or pesticides C09D5/16 takes precedence
• CPC Class Codes: C23C 26/00 Coating not provided for in groups C23C2/00 - C23C24/00

Abstract

An anti-microbial coating formulation consisting essentially of triethanolamine and a silane.

Claims

1. An antimicrobial coating formulation comprising:

89.48 vol. % methanol;

5.26 vol. % triethanolamine; and

5.26 vol. % of a silane having a structure;

2. The antimicrobial coating formulation of claim 1, wherein:

said antimicrobial coating formulation, when dried on a surface, exhibits a 6.5 log reduction in murine norovirus 4 hours after initial inoculation of murine norovirus on said surface.

3. The antimicrobial coating formulation of claim 2, wherein said surface is formed from stainless steel.

7. The antimicrobial coating formulation of claim 2, wherein drying on a surface comprises allowing at least 90 wt. % of the methanol liquid carrier to evaporate to provide a deposition consisting essentially of said silane and triethanolamine.

4. An antimicrobial coating formulation consisting essentially of:

a silane having a structure;

5. The antimicrobial coating formulation of claim 4, wherein:

said antimicrobial coating formulation, when dried on a surface, exhibits a ≥

2.91 log reduction in murine norovirus 4 hours after initial inoculation of murine norovirus on said surface.

6. The antimicrobial coating formulation of claim 5, wherein said surface is formed from stainless steel.

8. A method to prepare an antimicrobial surface, comprising:

disposing on a surface an antimicrobial coating formulation comprising 5.26 vol. % triethanolamine, 89.48 vol % methanol, and 5.26 vol. % of a silane having a structure;

9. The method of claim 8, wherein:

said silane coating is first formed on said surface;

said Titanyl-Oxide coating is formed over said silane coating.

10. The method of claim 8, wherein:

said Titanyl-Oxide is first formed on said surface;

said silane coating is formed over said Titanyl-Oxide coating.

11. A method to prepare an antimicrobial surface, comprising:

disposing an antimicrobial coating formulation consisting essentially of a silane, triethanolamine, and a mixture of Peroxotitanium acid and Peroxo-modified anatase sol, in a liquid carrier on a surface, wherein said silane has the structure;