Deodorizing preparations containing nanosacle chitosans and/or chitosan derivatives
First Claim
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1. A deodorizing composition comprising a particulate ingredient selected from the group consisting of nanoscale chitosan having an average particle size range of from about 1 to 300 nm, nanoscale chitosan derivatives having an average particle size range of from about 1 to 300 nm, and mixtures thereof, wherein the particulate ingredient is prepared by a process which comprises:
- (a) dissolving the chitosan or chitosan derivative starting material in a solvent for the material to form a fluid mixture at supercritical or near supercritical conditions;
(b) expanding the fluid mixture into a vacuum, a gas or a liquid while simultaneously evaporating the solvent to form the particles.
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Abstract
A deodorizing composition containing an ingredient selected from the group consisting of a nanoscale chitosan having a particle diameter of from about 1 to 300 nm, a nanoscale chitosan derivative having a particle diameter of from about 1 to 300 nm, and mixtures thereof.
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20 Claims
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1. A deodorizing composition comprising a particulate ingredient selected from the group consisting of nanoscale chitosan having an average particle size range of from about 1 to 300 nm, nanoscale chitosan derivatives having an average particle size range of from about 1 to 300 nm, and mixtures thereof, wherein the particulate ingredient is prepared by a process which comprises:
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(a) dissolving the chitosan or chitosan derivative starting material in a solvent for the material to form a fluid mixture at supercritical or near supercritical conditions;
(b) expanding the fluid mixture into a vacuum, a gas or a liquid while simultaneously evaporating the solvent to form the particles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19, 20)
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10. A process for inhibiting body odor formation comprising contacting human skin with a deodorizing composition containing a particulate ingredient selected from the group consisting of a nanoscale chitosan having an average particle size range of from about 1 to 300 nm, nanoscale chitosan derivatives having an average particle size range of from about 1 to 300 nm, and mixtures thereof, wherein the particulate ingredient is prepared by a process which comprises:
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(a) dissolving the chitosan or chitosan derivative starting material in a solvent for the material to form a fluid mixture at supercritical or near supercritical conditions;
(b) expanding the fluid mixture into a vacuum, a gas or a liquid while simultaneously evaporating the solvent to form the particles. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification