Stable, shippable, peroxy-containing microbicide

• US 5,656,302 A
• Filed: 06/07/1995
• Issued: 08/12/1997
• Est. Priority Date: 05/14/1987
• Status: Expired due to Term

• Current Assignee: Medivators, Inc. (Steris PLC)
• Original Assignee: Minntech Corporation
• Inventors: Cosentino, Louis C., Maltais, Jo-Ann B., Fischbach, Leroy J., Hnojewyj, Anatol M., Jansen, Walter B.
• Primary Examiner(s): Burn, Brian M.
• Application Number:
  US08/487,325
• Time in Patent Office: 797 Days
• Field of Search: 424/613, 424/616, 422/28, 422/29
• US Class Current: 424/616
• 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 59/00 Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds

Abstract

A stable, shippable microbicidal composition including between about 0.2 to 8% hydrogen peroxide, about 0.2 to 11% peracetic plus acetic acid, 0 to about 1.0% sequestrant such as organic phosphonic acid or its salt and water, and surfactant between 0 and about 1% with the ratio of total acid to H₂ O₂ being between about 1.0 and 11.

Claims

1. A microbicidal solution suitable for a non-vented container, the microbicidal solution comprising:

a) from about 0.2 to about 8% by weight hydrogen peroxide;

b) from about 0.2 to about 11% by weight of an acid mixture consisting of peracetic acid and acetic acid;

c) from about 0.5 to about 1.0% by weight of a sequestering agent; and

d) the remainder of said solution being water; and

wherein, the ratio of said acid mixture to hydrogen peroxide is between about 1.0 to about 11;

wherein the hydrogen peroxide concentration of said solution is approximately 3% by weight or less.

2. A method for sterilizing, disinfecting, or sanitizing a surface, said method comprising:

contacting said surface with a dilute solution for use as a microbicide, the concentrate solution comprising;

a) from about 0.2 to about 8% by weight hydrogen peroxide;

b) from about 0.2 to about 11% by weight of an acid mixture consisting of peracetic acid and acetic acid;

c) from about 0.5 to about 1.0% by weight of a sequestering agent; and

d) the remainder of said concentrate solution being water;

wherein, the ratio of said acid mixture to hydrogen peroxide is between about 1.0 to about 11 in said concentrate solution.

3. A method according to claim 2, wherein the step of contacting comprises contacting a stainless steel surface with said solution.

4. A method according to claim 2, wherein the step of contacting comprises the step of contacting an equipment surface with said solution.

5. A method according to claim 2, wherein the step of contacting comprises the step of contacting a porcelain surface with said solution.

6. A method according to claim 2, wherein the step of contacting comprises the step of contacting a surface of a silk suture loop with said solution.