Control of mastitis and compositions therefor
First Claim
1. A method for killing mastitis-causing organisms on an animal'"'"'s teats, wherein control over the organisms can be obtained in less than 15 minutes, said method comprising the step of treating the teats of the animal with a composition containing a major amount of water, having a pH above 4 and below 6.5 at 23°
- C., and consisting essentially of;
(a) at least about 0.1% by weight of an aminocarboxylic acid or aminocarboxylate chelating agent having a calcium chelate stability constant of at least about 6;
(b) at least 0.5% by weight of an anionic surfactant uniformly distributable in water and having the general formula
space="preserve" listing-type="equation">LSO.sub.x.sup.⊖
N.sup.⊕
wherein L is organic, x is 3 or 4, and N.sup.⊕
is a topically acceptable cation; and
(c) up to about 98% by weight of an aqueous diluent;
said components (a) and (b) being uniformly distributed through said aqueous diluent.
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Accused Products
Abstract
Neutral to mildly acidic externally-applied mastitis control agents comparable to iodophor teat dips in activity can be obtained from the combination of an anionic surfactant (e.g. an aromatic sulfonate or sulfonic acid) and an aminocarboxylic-type chelating agent. A nitroalkanol antibacterial can be included in the composition. The full strength teat dip contains a major amount of water (but less than 98%) and typically includes an emollient, a buffering agent, and a thickener. The anionic surfactant (which is believed to be effective against gram positive mastitis-causing organisms) and the chelating agent appear to cooperate in the pH range above 4 and below 7. The chelating agent is believed to improve the cell wall permeability of the mastitis-causing organisms, even in this pH range.
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Citations
14 Claims
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1. A method for killing mastitis-causing organisms on an animal'"'"'s teats, wherein control over the organisms can be obtained in less than 15 minutes, said method comprising the step of treating the teats of the animal with a composition containing a major amount of water, having a pH above 4 and below 6.5 at 23°
- C., and consisting essentially of;
(a) at least about 0.1% by weight of an aminocarboxylic acid or aminocarboxylate chelating agent having a calcium chelate stability constant of at least about 6; (b) at least 0.5% by weight of an anionic surfactant uniformly distributable in water and having the general formula
space="preserve" listing-type="equation">LSO.sub.x.sup.⊖
N.sup.⊕wherein L is organic, x is 3 or 4, and N.sup.⊕
is a topically acceptable cation; and(c) up to about 98% by weight of an aqueous diluent;
said components (a) and (b) being uniformly distributed through said aqueous diluent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14)
- C., and consisting essentially of;
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13. - 0. 4 by weight of colorants, odorants, and any additional surfactants.
Specification