Drug – bio-affecting and body treating compositions – Deodorants
Reexamination Certificate
2000-01-04
2001-10-02
Dodson, Shelley A. (Department: 1616)
Drug, bio-affecting and body treating compositions
Deodorants
C424S762000, C424S076210, C424S076500, C424S076600, C424S076700
Reexamination Certificate
active
06296841
ABSTRACT:
FIELD OF THE INVENTION
This invention is concerned with odor control technology and more particularly with household and institutional odor control. In accordance with this invention, odors attributed to a wide variety of human and animal endeavors can be controlled or eliminated. The odor control process of this invention comprises the application of a solution of the odor control composition of this invention to the odor containing substrate.
BACKGROUND OF THE INVENTION
The application of materials and solutions to substrates for purposes of odor control is common and in fact is thousands of years old, in the most common situation solutions or materials with a pleasant odor are applied to a substrates, for example, to furniture or carpets. In the past the most common method of odor control was to apply solutions which are perfumes to the odor containing substrate. These perfumes did not control the odor but only masked the odor. That is in the prior art the odor was not controlled but instead it was only masked. In contrast in accordance with the subject invention the troublesome odors are not just masked but instead they are chemically controlled or eliminated. This end is effected by treating the substrate with a solution which contains Chloramine-T. To some degree the use of Chloramine-T for odor control is known in the prior art however the use of the composition and process of this invention is not known. With this invention it is possible to eliminate odors resulting from a wide range of sources such as smoking, animal and human fluids, mildew, cooking etc. In its broadest terms, this invention relates to the utilization of a particular Chloramine-T solution which reacts with odor producing molecules as may be contained in a substrate.
BRIEF DESCRIPTION OF THE INVENTION
Odor control has been a problem which man has addressed for thousands of years, scented or perfumed compositions for odor control are well known in the prior art. Regardless of the widespread usage of these compositions, the problem of effective odor control remains a common and troublesome problem. This situation results from the fact that the prior art solutions do not control the odorous materials as may be in the substrate. The composition and related process of this invention react with the odorous materials are contained in the substrate and thereby eliminate the same.
The subject invention is concerned with a means whereby undesirable odors in a substrate can be eliminated by use of the active chlorine in Chloramine-T to react with the odorous material on a molecular level.
In the preferred embodiment, the odor controlling solution for use in this invention incorporates Chloramine-T, a wetting agent and a buffering agent. Using the composition and process of this invention odors in the substrate are eliminated because the odor controlling solution wets out the substrate allowing the active chlorine moiety to react with the odorous molecules. The odor controlling composition comprises a solution of Chloramine-T which contains a wetting agent which is compatible with the Chloramine-T. The wetting agent must not degrade the active chlorine in the Chloramine-T. Preferred wetting agents are generally anionic. In other words the wetting agent in the odor control solution does not degrade the active Cl+ moiety which is formed when Chloramine-T goes into solution. If the Cl+ moiety is degraded the Chloramine-T is less effective as an odor control agent.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In accordance with the above discussion this invention is concerned with a process for controlling odors in household and institutional applications. Perfumed odor control compositions have been used for thousands of years however these solutions did not destroy the odorous materials but instead they only mask the odors caused by these materials. In contrast to this masking of the troublesome odorous material in the prior art, the composition and process of this invention reacts with the odorous molecules. In the prior art odor control compositions are perfumes wherein the odors are masked with synthetic or natural essence. In the subject invention, instead of masking the odor with a perfume, the odor causing molecules are degraded by reaction with the Cl+ moeity and with the chemical moeity which remains after the Cl+ moeity is removed from Chloramine-T. The use of Cl+ is common in odor control, the most common Cl+ producing composition is household bleach. The preferred source of a Cl+ moeity for use in accordance with this invention is Chloramine-T.
Chloramine-T is a common trivial name used to describe a variety of compounds which are based on N-Sodium, N-Chloro-Par-Toluenesulfonamide and N-Sodium, N-Chloeo-Par-Benzenesulfonamide. The preferred Chloramine-T for use in this invention is a tri hydrated sodium salt. As is mentioned above bleach has been commonly used as a source of Cl+ cations which are useful as deodorizers. Because of the problems associated with the use of bleach, i.e. the discoloration of the substrate, it is generally not suitable for use as a deodorizer. In addition the Cl+ cation which is produced by bleach is much more ionic when compared to the Cl+ cation produced by Chloramine-T. That is when compared to the Cl+ cation produced by bleach the Cl+ cation produced Chloramine T is much more covalent. As a result of this covalence the side effects produced by the Cl+ cation produced by Chloramine-T are not as severe as those produced by bleach. As a result the Cl+ cation produced by Chloramine-T can be used to deodorize as it does not have side effects such as a strong bleach smell, the undesirable bleaching of the odor containing substrate etc. Further Chloramine-T is more stable than bleach and has a higher Cl+ activity than bleach.
Further when compared to bleach Chloramine-T is a superior deodorizing agent as the chemical moiety, the backbone, remaining after the Cl+ cation is released by Chloramine-T, further reacts with the odor containing molecule thereby permanently removing it as a potential source of odor. In contrast the chemical moiety which remains after the Cl+ cation is removed from bleach has no ability to react with odor causing molecules.
Most odor causing molescules are mercaptans sulfides or amines. Chloramine-T is an excellent agent to eliminate odors which are mercaptan, sulfide or amine based as both the Cl+ cation produced by Chloramine-T and the residual chemical moiety remaining after the Cl+ cation is produced, react with the odor causing molecule.
In order for Chloramine-T to be effective it must come into contact with the substance which is responsible for the odor. If the substance which is responsible for the odor is in an environment which makes access difficult i.e. pet stains in a carpet, a means must be provided for bringing the Chloramine-T into contact with the odor causing substance. In many instances when aqueous solution is used as the delivering medium the solution tends to bead up on the substrate. Therefore, when the water component of the solution evaporates the substance in solution is deposited only in localized areas. In the case at hand if an aqueous solution of Chloramine-T were applied to a carpet containing pet stains, the solution would bead up on the carpet, such that when the water evaporated the placement of the Chloramine-T on the carpet would be spotty. Due to this placement the two reactive components of the Chloramine-T would not be in position to react with all of the odor causing substance on a molecular basis. That is the reaction of the Chloramine-T with the pet stain would be incomplete, and hence the odor control would be incomplete.
The use of wetting agents with various solutions in order to reduce surface tension is common in the prior art. For example wetting agents are commonly added to herbical solutions to allow the herbicide to wet out plant leaves Likewise the use of wetting agents with insecticides is common.
In accordance wi
Bahr Donald R.
Dodson Shelley A.
H & S Chemical Co. Inc.
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