Antimicrobial silver halide composition
OwnerKurt Schroeder, Seshadri Jagannathan +6inventors
InventorsKurt Schroeder, Seshadri Jagannathan, Brian Aylward, Yun Chang, Mark Fornalik, Yannick Lerat, Patricia Walsh, Jerzy Budz
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Abstract
This invention relates to a composition comprising at least 50% water, silver halide particles and a hydrophilic polymer, wherein the composition does not substantially gel or solidify at 25 degrees C.; is substantially free of organic solvents; and exhibits antimicrobial activity upon drying. The composition may further comprise a hydrophobic binder or a crosslinker for the hydrophilic polymer.
Claims46
A composition comprising at least 50% water, silver halide particles and a hydrophilic polymer, wherein the composition does not substantially gel or solidify at 25 degrees C.;
- is substantially free of organic solvents;
- and exhibits antimicrobial activity upon drying.
The composition of claim I wherein the hydrophilic polymer is gelatin.
The composition of claim I wherein the amount of silver halide is 0.0001 to 1.0%
The composition of claim I wherein the silver particles are less than 1 micron in diameter.
A composition comprising at least two separately packaged parts, the first part being a composition comprising at least 50% water, silver halide particles and a hydrophilic polymer, wherein the composition does not substantially gel or solidify at 25 degrees C. and substantially does not contain an organic solvent;
- and the second part being a composition comprising an aqueous suspension of a hydrophobic binder, or a composition comprising a crosslinker for the hydrophilic polymer.
A method of coating a fabric or fiber comprising providing a composition comprising at least two separately packaged parts, the first part being a composition comprising at least 50% water, silver halide particles and a hydrophilic polymer, wherein the composition does not substantially gel or solidify at 25 degrees C. and substantially does not contain an organic solvent;
- and the second part comprising an aqueous suspension of a hydrophobic binder, or a composition comprising a crosslinker for the hydrophilic polymer;
- mixing the two separately packaged parts;
- and coating the mixture on the fabric or fiber.
A method of coating a fiber or fabric comprising providing a composition comprising at least 50% water, silver halide particles, a hydrophilic polymer, and a hydrophobic binder, or a crosslinker for the hydrophilic polymer, wherein the composition does not substantially gel or solidify at 25 degrees C. and substantially does not contain an organic solvent;
- providing a fiber or fabric;
- and coating said fiber or fabric with said composition.
A fabric or fiber having coated thereon an antimicrobial composition comprising silver chloride particles and gelatin.
Dependencies are inferred from the claim text.