Biocide and biocidal cloth containing a metal pyridinethione and additional biocide
First Claim
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1. A biocidal concentrate comprising:
- a first biocide comprising 5-25% w/w of the concentrate, which is a metal pyridinethione; and
a second biocide comprising 25-45% w/w of the concentrate which is selected to be biocidally effective in a pH range complementary to said metal pyridinethione, said second biocide selected from the group consisting of halogenated phenols, phenols, derivatives of halogenated phenols, derivatives of phenols and triclocarban.
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Abstract
The invention provides a biocidal concentrate including zinc pyridinethione; and a second biocide selected to be biocidally effective in a pH range complementary to zinc pyridinethione. The second biocide may be an aromatic halogenated phenol such as triclosan, dichlorophen and trichlorcarban. The invention also provides biocidal cleaning devices and plastic materials and methods of manufacture thereof.
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Citations
38 Claims
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1. A biocidal concentrate comprising:
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a first biocide comprising 5-25% w/w of the concentrate, which is a metal pyridinethione; and
a second biocide comprising 25-45% w/w of the concentrate which is selected to be biocidally effective in a pH range complementary to said metal pyridinethione, said second biocide selected from the group consisting of halogenated phenols, phenols, derivatives of halogenated phenols, derivatives of phenols and triclocarban. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A biocidal cleaning device comprising
a first biocide which is a metal pyridinethione; -
a second biocide which is selected to be biocidally effective in a pH range complementary to said metal pyridinethione, said second biocide selected from the group consisting of halogenated phenols, phenols, derivatives of halogenated phenols, derivatives of phenols, and triclocarban; and
a substrate selected from cloth, sponge, synthetic equivalents of sponge, woven textile, non-woven textile, and paper, wherein said biocides are in or on said substrate in a ratio of said first biocide to said second biocide of from 1;
1 to 1;
3.- View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 37, 38)
70-100% rayon; and
0-30% polyester.
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24. The biocidal cleaning device according to claim 23 comprising 0-30% polypropylene.
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25. The biocidal cleaning device according to claim 13 wherein the substrate is sponge or a synthetic equivalent.
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26. The biocidal cleaning device according to claim 13 wherein the substrate is paper.
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27. The biocidal cleaning device according to claim 13 wherein the substrate is woven textile.
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37. The cleaning device of claim 13, wherein said first biocide and said second biocide are contained in a binding agent which is bound to said substrate, and said cleaning device is washable and reusable.
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38. The cleaning device of claim 13, further comprising a binder containing said first biocide and said second biocide and bound to said substrate.
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28. A method of making a biocidal cleaning device comprising the steps of:
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combining a biocidal concentrate comprising a first biocide which is a metal pyridinethione; and
a second biocide which is selected to be biocidally effective in a pH range complementary to said metal pyridinethione, said second biocide selected from the group consisting of halogenated phenols, phenols, derivatives of halogenated phenols, derivatives of phenols, and triclocarban with a binding agent;
contacting the resultant formulation with a substrate; and
binding the formulation to the substrate with binding means. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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Specification
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Current AssigneeNovapharm Research (Australia) Pty Ltd.
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Original AssigneeNovapharm Research (Australia) Pty Ltd.
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InventorsKritzler, Steven, Kwon, Hyo Sang
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Primary Examiner(s)BOYER, CHARLES I
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Application NumberUS09/555,269Time in Patent Office669 DaysField of Search510/130, 510/131, 510/138, 510/382, 510/386, 510/387, 510/388US Class Current510/382CPC Class CodesA01N 2300/00 Combinations or mixtures of...A01N 43/40 six-membered ringsA61L 2/18 Liquid substances or soluti...
