Antimicrobial composition

• US 7,807,199 B2
• Filed: 08/30/2006
• Issued: 10/05/2010
• Est. Priority Date: 08/30/2006
• Status: Active Grant

• Current Assignee: Otto Carl Wilson, Thomas K. Allen
• Original Assignee: Otto Carl Wilson, Thomas K. Allen
• Inventors: Allen, Thomas K., Wilson, Otto Carl
• Primary Examiner(s): PRYOR, ALTON NATHANIEL
• Application Number:
  US11/513,978
• Publication Number:
  US 20080057135A1
• Time in Patent Office: 1,497 Days
• Field of Search: 424/400, 424/489, 424/618, 424/630, 424/649
• US Class Current: 424/489
• 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 25/04 Dispersions, emulsions, suspoemulsions, suspension concentrates or gels foams A01N25/16
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: A01N 33/12 Quaternary ammonium compounds
• CPC Class Codes: A01N 59/12 Iodine, e.g. iodophors; Compounds thereof
• CPC Class Codes: A01N 59/16 Heavy metals; Compounds thereof
• CPC Class Codes: A01N 59/20 Copper

Abstract

An antimicrobial composition comprising metal particles that may be silver, copper, or gold together with a surfactant such as benzalkonium chloride in a liquid medium, which is preferably deionized water, that will not react with the other constituents of the antimicrobial composition. Preferably, the composition also comprises a source of iodine, such as poly(vinyl pyrrolidone)-iodine complex. And a substrate carrier having the same type of metal as the particles deposited onto it may also be introduced into the liquid medium. The metal particles are preferably nanoparticles but may be in the micron size, in the submicron size, or bulk particles.

Claims

1. An antimicrobial composition, which comprises:

silver nanoparticles;

benzalkonium chloride; and

poly(vinyl pyrrolidone)-iodine complex.

2. An antimicrobial composition, which comprises:

silver particles in the micron size;

benzalkonium chloride; and

poly(vinyl pyrrolidone)-iodine complex.

3. An antimicrobial composition, which comprises:

silver particles in the submicron size;

benzalkonium chloride; and

poly(vinyl pyrrolidone)-iodine complex.

4. An antimicrobial composition, which comprises:

bulk silver particles;

benzalkonium chloride; and

poly(vinyl pyrrolidone)-iodine complex.