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US5616616A Expired / Lapsed US ⏱️ 0.0 years remaining

Room Temperature sterilant

Assignee: Medivators Inc
•
Filing: 1994-06-01
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Granted: 1997-04-01
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Expires: 2014-06-01
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Abstract

Abstract Provided is an anti-microbial composition containing an ester of formic acid, an oxidizer, performic acid and water. Also provided is a premix for making the anti-microbial composition having two parts. One part contains the ester of formic acid and a second part contains the oxidizer. Another method is provided for making the anti-microbial composition in which the ester of formic acid is combined with the oxidizer and water.

Inventors

  • 👤 II Robert T. Hall
  • 👤 Bradley K. Onstad

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 05:01
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/18; A61L2/186; A01; A01N; A01N25/00; A01N25/02; A01N25/22; A01N37/00; A01N37/02; A01N37/16; A01N59/00; A01N2300/00; A61L2103/00; A61L2103/15

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 19 words
An anti-microbial composition having improved anti-corrosive properties comprising: an ester of formic acid; an oxidizer; performic acid; and water.
Claim 2
Dependent Claim 19 words
An anti-microbial composition having improved anti-corrosive properties comprising: an ester of formic acid; an oxidizer; performic acid; and water.
Claim 3
Dependent Claim 29 words
An anti-microbial composition according to claim 1, wherein said ester of formic acid is selected from the group consisting of ethyl formate, methyl formate, propyl formate, and mixtures thereof.
Claim 4
Dependent Claim 67 words
An anti-microbial composition according to claim 1, wherein said ester of formic acid is present in an amount of about 0.01 to about 10 wt. %, said oxidizer is present in an amount of about 0.01 to about 10 wt. %, said performic acid is present in an amount of about 0.001 to about 5 wt. %, and said water comprises up to about 99.98 wt. %.
Claim 5
Dependent Claim 67 words
An anti-microbial composition according to claim 2, wherein said ester of formic acid is present in an amount of about 0.01 to about 10 wt. %, said oxidizer is present in an amount of about 0.01 to about 10 wt. %, said performic acid is present in an amount of about 0.001 to about 5 wt. %, and said water comprises up to about 99.98 wt. %.
Claim 6
Dependent Claim 13 words
An anti-microbial composition according to claim 1, wherein said oxidizer is hydrogen peroxide.
Claim 7
Dependent Claim 13 words
An anti-microbial composition according to claim 2, wherein said oxidizer is hydrogen peroxide.
Claim 8
Dependent Claim 13 words
An anti-microbial composition according to claim 3, wherein said oxidizer is hydrogen peroxide.
Claim 9
Dependent Claim 13 words
An anti-microbial composition according to claim 4, wherein said oxidizer is hydrogen peroxide.
Claim 10
Dependent Claim 14 words
An anti-microbial composition according to claim 4, wherein said oxidizer is urea hydrogen peroxide.
Claim 11
Dependent Claim 23 words
An anti-microbial composition according to claim 1, further comprising an additive selected from the group consisting of corrosion inhibitors, stabilizers, and mixtures thereof.
Claim 12
Dependent Claim 23 words
An anti-microbial composition according to claim 9, further comprising an additive selected from the group consisting of corrosion inhibitors, stabilizers, and mixtures thereof.
Claim 13
Dependent Claim 146 words
An anti-microbial composition according to claim 10, wherein said additive comprises: (a) about 20% to about 45% by weight mono sodium salt of phosphoric acid and mono (2-ethyl hexyl) ester of phosphoric acid; (b) about 20% to about 30% by weight pyrophosphonic acid, bis (2-ethyl hexyl) esters of pyrophosphonic acid, and sodium salts of pyrophosphonic acid; (c) about 10% to about 25% by weight polyphosphonic acids, (2-ethyl hexyl) esters of polyphosphonic acids, and sodium salts of polyphosphonic acids; (d) about 20% to 25% by weight water; (e) less than 10% by weight phosphoric acid, bis (2-ethyl hexyl) esters of phosphoric acid, sodium salt of bis (2-ethyl hexyl) esters of phosphoric acid, and sodium salt of phosphoric acid; (f) less than 3% by weight 2-ethyl hexanol; and (g) less than 5% by weight phosphoric acid, mono sodium salt of phosphoric acid, and disodium salt of phosphoric acid.
Claim 14
Dependent Claim 146 words
An anti-microbial composition according to claim 11, wherein said additive comprises: (a) about 20% to about 45% by weight mono sodium salt of phosphoric acid and mono (2-ethyl hexyl) ester of phosphoric acid; (b) about 20% to about 30% by weight pyrophosphonic acid, bis (2-ethyl hexyl) esters of pyrophosphonic acid, and sodium salts of pyrophosphonic acid; (c) about 10% to about 25% by weight polyphosphonic acids, (2-ethyl hexyl) esters of polyphosphonic acids, and sodium salts of polyphosphonic acids; (d) about 20% to 25% by weight water; (e) less than 10% by weight phosphoric acid, bis (2-ethyl hexyl) esters of phosphoric acid, sodium salt of bis (2-ethyl hexyl) esters of phosphoric acid, and sodium salt of phosphoric acid; (f) less than 3% by weight 2-ethyl hexanol; and (g) less than 5% by weight phosphoric acid, mono sodium salt of phosphoric acid, and disodium salt of phosphoric acid.
Claim 15
Dependent Claim 12 words
An anti-microbial composition according to claim 10, wherein said additive comprises 1,2,3-Benzotriazole.
Claim 16
Dependent Claim 12 words
An anti-microbial composition according to claim 11, wherein said additive comprises 1,2,3-Benzotriazole.
Claim 17
Dependent Claim 20 words
An anti-microbial composition according to claim 4, wherein said ester is ethyl formate and said oxidizer is urea hydrogen peroxide.
Claim 18
Dependent Claim 39 words
An anti-microbial composition according to claim 16, wherein said ethyl formate is present in an amount of about 3.8 to about 4 wt. %, and said urea hydrogen peroxide is present in an amount of about 4 wt. %.

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