Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2001-05-02
2002-03-26
Boyer, Charles (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S139000, C510S138000, C510S268000, C510S368000, C510S395000, C510S420000, C510S462000
Reexamination Certificate
active
06362143
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of Invention
The present invention relates to an improved detergent which provides easier removal of oils and fats from hair, human skin or goods; and more particularly, to such detergent comprising powders of rice hulls.
2. Description of the Prior Art
Detergents used for washing items in general mainly contain a surface active agent, which agent acts to separate oils and fats from the surface of human skin or solid materials. As a surface active agent, there are, for instance, an anionic surfactant and a cationic surfactant, a nonionic surfactant and an amphoteric surfactant and so on.
On the other hand, as an absorbing material, which is porous and used to separate and recover oils from compounds of oil and water, there are known dried hulls other than porous agents of synthetic resin.
Hulls are the part-of rice (both embryo and albumen) in the hulls of ears of rice plants, also called end parts of an ear of rice plants, and are by-products produced by threshing after collection of rice. Hulls, which have been dried, have rough surfaces with surface dimension which is large and a specific gravity which is small so that the hulls have characteristics of ability to selectiely absorb oil layer floating on water surface, thus being appropriate as an absorbing agent of oil and fat. (One example thereof being Japan Patent 2,706,170)
In addition, there is disclosed in Japan Patent Publication No. Heisei 3 (1991) 77239, the use of micro powders of pulverized hulls and diatomaceous earth of approximately 0.1to 100 &mgr;m, combined to be used as a washing agent in place of the surface active agent.
Furthermore, the purpose of absorbing agents, e.g. compounds of micro powders of charcoals, other than hulls are for use as a cosmetic soap.
However, among the conventional detergents above described, those which have added the pulverized hulls onto the surface active agents, usually have particle diameters of pulverized hulls which are unevenly or evenly dispersed. Consequently, complete absorption and removal of fats and oils, were difficult.
In addition, a cosmetic soap which combines micro powders of charcoal does not have a natural feel on the skin surface because of the low hydrophilicity of the powders. This causes unnatural feeling on the skin surface. Also, it is easy to have a lump made of the soap when washing therewith.
In addition, when applying such a detergent onto the surface of a windshield of an automobile, to remove oil films, there is a problem in that uneven effects of cleaning are shown on the glass surface with the detergent being dispersed unevenly.
SUMMARY OF THE INVENTION
Thus, a purpose of the present invention is to provide a detergent capable of removing oil and fat definitely by resolving the above problems, wherein the detergent is evenly absorbed into the oils and fats attached onto the surface of human skin or items while washing same.
In addition, another purpose of the present invention is to provide a detergent capable of obtaining cleaning effect evenly and sufficiently, wherein the detergent is definitely absorbed onto the oils and fats attached onto the surface of human skin or glass or other items without harming specifically the human skin.
The present invention concerns a detergent combined with ash powders of rice hulls or carbide powders of rice hulls or compound powders using both of the same with surfactants in a dispersed state.
The detergent comprises ash powders of rice hulls or carbide powders of rice hulls or compound powders using both of the same. These powders are softer than ash powders of wood or charcoal powders that have been conventionally used. The invention comprises micro powders of the same diameter of particles and have hydrophilicity so that they are dispersed evenly on the surface of materials to be cleaned without harming the surface of the soft materials to be clean, such as human skin. Accordingly, the invention provides thorough and even absorption and removal of oils and fats.
In addition, there is provided a detergent which combines the ash powders of the rice hulls or the carbide powders of the rice hulls or using compound powders of 3 to 85 volume percent based on both of the same with solid detergent in a dispersed state.
In addition, when making a liquid detergent comprising surfactants, there is provided a detergent which combines the ash powders of the rice hulls or carbide powders of the rice hulls or using compound powders, of 3 to 85 volume percent based on both of same with liquid detergent in a dispersed state.
Furthermore, when adopting water instead of surfactant, there is provided a detergent combining the ash powder of the rice hulls or the carbide powders of the rice hulls or using compound powders of the same in 5 to 85 volume percent based on same with water in a dispersed state.
According to the invention, wherein a given amount of ash powders of rice hulls or carbide powders of rice hulls or combination thereof are combined with solid or liquid detergent, or surfactants, the powders are lubricated by the detergent or surfactants, so that the surface of the human skin or articles are not harmed even when washing same with hands using detergent thereon and oils and fats can be cleaned with water effectively.
DETAILED DESCRIPTION OF THE PREFFERED EMBODIMENTS
One example of the preferred embodiment of the present invention will be explained hereinafter. The surfactant to be used for the detergent of the present invention may be preferably selected from well known ionic surfactants, non-ionic surfactants, and amphoteric surfactants. The kinds of surfactants are not limited; however, when these are used as a skin detergent of the liquid type, they may include fluid liquid material like cream or emulsion. The surfactants are excellent in stability and are evenly dispersed without being separated, even when untouched for a length of time. Non-ionic surfactants are preferred.
For example, a non-ionic surfactant may comprise fatty acid or higher alcohol for hydrophilicity or be based on polyhydric alcohol or high molecular compound, such as hydrophilic groups, when used as a surface active agent combined for conventional cosmetic products.
The solid detergent or liquid detergent used for the invention is a detergent already prepared according to the use to be made thereof, or items to be cleaned, or a single material capable of being used as a detergent for washing with water and may be but need not include a surfactant. Furthermore, they can adopt the liquid detergent comprising a single component of glycerin.
For instance, a solid detergent is discussed below. After oils and fats comprising a suet and coconut oil are reacted with sodium hydroxide, additives, such as aromatic essence, pigments, antioxidants, or sequestering agents are added to the neat soap (melted soap with approximately 30% of water) which was salted out after adding salt thereto and become soap material of 10 to 15% water. The material is subjected to a drying step of presure reduction or hot air process. An even mixture of materials is provided to produce the soap.
Furthermore, when liquid detergent is produced, the solid soap is added as liquid components, like glycerin, to become liquid, or the melting point is lowered to shift the type of oils and fats, or by adjusting the volume of water so as to make the detergent liquid. The liquid detergent may as well be a foaming detergent comprising mainly ester alkylsulfate salt, betaine-type amphoteric surfactant, or the like.
The carbide hulls used for the invention is a material rich in carbon (amorphous carbon) after being subjected to heat dissolution wherein the hulls were heated under adequate conditions. The carbide rice hulls are produced by roasting with use of steam with a temperature of 300 to 500° C. while shutting off air.
In addition, ash powders of rice hulls used for the invention are remnants of solid ashes produced by roasting the hulls completely under good conditions.
Thus, ash powders of rice hulls or carbide powders of rice hulls or
Boyer Charles
Kojima Moonray
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