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US4647458A
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Liquid bactericide for foods and food processing machines or utensils, employing a synergistic mixture of ethyl alcohol, an organic acid and phosphoric acid
Assignee: Ueno Seiyaku Oyo Kenkyujo KK
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Filing: 1984-02-14
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Granted: 1987-03-03
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Expires: 2004-02-14
Abstract
Abstract A liquid bactericide for foods and food processing machines or utensils, said bactericide comprising as active ingredients 98.0 to 2.3% (W/V) of ethyl alcohol, 1.0 to 96.7% (W/V) of an organic acid selected from the group consisting of lactic acid, acetic acid, citric acid, tartaric acid, gluconic acid, malic acid, ascorbic acid and phytic acid and 1.0 to 96.7% (W/V) of phosphoric acid; said bactericide being capable of sterilizing within 30 seconds when used in an aqueous solution, such that the concentration of active ingredients in solution consists of 14 to 1% (W/V) of ethyl alcohol, 13.0 to 0.3% (W/V) of said organic acid and 0.7 to 0.03% (W/V) of phosphoric acid.
Inventors
- 👤 Ryuzo Ueno
- 👤 Tatsuo Kanayama
- 👤 Yatsuka Fujita
- 👤 Munemitsu Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:50
CPC Classifications
A; A01; A01N; A01N43/00; A01N43/02; A01N43/04; A01N43/06; A01N43/08; A01N37/00; A01N37/02; A01N37/36; A01N57/00; A01N57/10; A01N57/12; A01N59/00; A01N59/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
119 words
A liquid bactericide for foods and food processing machines or utensils, said bactericide consisting essentially of a synergistically effective amount of the active ingredients, 98.0 to 2.3% (W/V) of ethyl alcohol, 1.0 to 96.7% (W/V) of an organic acid selected from the group consisting of lactic acid, acetic acid, citric acid, tartaric acid, gluconic acid, malic acid, ascorbic acid and phytic acid and 1.0 to 96.7% (W/V) of phosphoric acid; said bactericide being capable of sterilizing within 30 seconds when used in an aqueous solution, such that the concentration of active ingredients in solution consists of 14 to 1% (W/V) of ethyl alcohol, 13.0 to 0.3% (W/V) of said organic acid and 0.7 to 0.03% (W/V) of phosphoric acid.
Claim 2
Dependent Claim
119 words
A liquid bactericide for foods and food processing machines or utensils, said bactericide consisting essentially of a synergistically effective amount of the active ingredients, 98.0 to 2.3% (W/V) of ethyl alcohol, 1.0 to 96.7% (W/V) of an organic acid selected from the group consisting of lactic acid, acetic acid, citric acid, tartaric acid, gluconic acid, malic acid, ascorbic acid and phytic acid and 1.0 to 96.7% (W/V) of phosphoric acid; said bactericide being capable of sterilizing within 30 seconds when used in an aqueous solution, such that the concentration of active ingredients in solution consists of 14 to 1% (W/V) of ethyl alcohol, 13.0 to 0.3% (W/V) of said organic acid and 0.7 to 0.03% (W/V) of phosphoric acid.
Claim 3
Dependent Claim
21 words
The bactericide of claim 1 wherein the organic acid is lactic acid, acetic acid, citric acid, malic acid or phytic acid.
Claim 4
Dependent Claim
17 words
The bactericide of claim 1 wherein the organic acid is lactic acid, acetic acid or phytic acid.
Claim 5
Dependent Claim
12 words
The bactericide of claim 1 wherein the organic acid is lactic acid.
Claim 6
Dependent Claim
25 words
The bactericide of claim 1, wherein the liquid bactericide is in the form of an aqueous solution having a pH of not more than 4.0.
Claim 7
Dependent Claim
79 words
A liquid bactericide for foods and food processing machines or utensils consisting essentially of a synergistically effective amount of an aqueous solution of 18.6 to 1% (W/V) of ethyl alcohol, 31 to 0.3% (W/V) of an organic acid selected from the group consisting of lactic acid, acetic acid, citric acid, tartaric acid, gluconic acid, malic acid, ascorbic acid and phytic acid and 0.7 to 0.05% (W/V) of phosphoric acid, said solution having a pH of not more than 4.0.
Claim 8
Dependent Claim
79 words
A liquid bactericide for foods and food processing machines or utensils consisting essentially of a synergistically effective amount of an aqueous solution of 18.6 to 1% (W/V) of ethyl alcohol, 31 to 0.3% (W/V) of an organic acid selected from the group consisting of lactic acid, acetic acid, citric acid, tartaric acid, gluconic acid, malic acid, ascorbic acid and phytic acid and 0.7 to 0.05% (W/V) of phosphoric acid, said solution having a pH of not more than 4.0.
Claim 9
Dependent Claim
35 words
The bactericide of claim 6 wherein the aqueous solution consists essentially of 14 to 1% (W/V) of ethyl alcohol, 13.0 to 0.3% (W/V) of the organic acid and 0.7 to 0.03% (W/V) of phosphoric acid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |