Hydrophilic polymer blends used to prevent cow skin infections
AssigneeHydromer, Inc.
InventorsJoseph Ehrhard, Michael Eknoian
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Abstract
The invention discloses a mammalian teat dip for controlling mastitis, a method for preparing the composition and a method of treatment of mammals. The composition contains a film-forming polymer blend and at least one antimicrobial. The polymer blend contains a solvent-soluble, thermoplastic polyurethane and a hydrophilic poly(N-vinyl lactam). Upon application to mammalian skin, this composition leaves a long-lasting, water-resistant, residual, elastic film which treats and protects mammalian skin from infection.
Claims23
A mammalian teat dip composition comprising:
- (i) a solution of a film forming polymer blend comprising a first polymer component which is an organic, solvent-soluble, preformed, thermoplastic polyurethane having no reactive isocyanate groups and a second polymer component which is a hydrophilic poly(N-vinyl lactam), said blend capable of withstanding exposure to water without significant loss of said hydrophilic poly(N-vinyl lactam) in an amount sufficient to form a water-resistant film upon topical application to mammalian skin;
- and wherein said blend comprises from about 10 to about 80 weight percent of said first polymer and from about 20 to about 90 weight percent of said second polymer;
- (ii) at least one antimicrobial agent sufficient to treat and protect mammalian skin from infection;
- and
- (iii) a buffering agent in an amount to provide said composition with a pH of approximately 5;
- wherein said composition is capable of being removed easily from said mammalian skin with a surfactant and water.
A protective film disposed on mammalian teat comprising:
- (i) a solution of a film forming polymer blend comprising a first polymer component which is an organic, solvent-soluble, preformed, thermoplastic polyurethane having no reactive isocyanate groups, a second polymer component which is a hydrophilic poly(N-vinyl lactam);
- said blend capable of withstanding exposure to water without significant loss of said hydrophilic poly(N-vinyl lactam), in an amount sufficient to form a water-resistant film upon topical application to mammalian skin;
- and wherein said blend comprises from about 10 to about 80 weight percent of said first polymer and from about 20 to about 90 weight percent of said second polymer;
- and
- (ii) an antimicrobial agent in an amount sufficient to treat and protect mammalian skin from infection;
- wherein said film is capable of being removed easily from said mammalian skin with a surfactant and water.
A method of protecting mammalian teat from infection comprising:
- (i) applying to mammalian teat a composition comprising a solution of a film forming polymer blend comprising a first polymer component which is an organic, solvent-soluble, preformed, thermoplastic polyurethane having no reactive isocyanate groups, a second polymer component which is a hydrophilic poly(N-vinyl lactam), said blend capable of withstanding exposure to water without significant loss of said hydrophilic poly(N-vinyl lactam), in an amount sufficient to form a water-resistant film upon application to mammalian skin;
- and an antimicrobial agent in an amount sufficient to treat and protect mammalian skin from infection;
- and wherein said blend comprises from about 10 to about 80 weight percent of said first polymer and from about 20 to about 90 weight percent of said second polymer;
- and
- (ii) evaporating solvent of said solution whereby a protective water resistant film is formed on said mammalian teat;
- and wherein said film is capable of being removed easily from said mammalian skin with a surfactant and water.
Dependencies are inferred from the claim text.