Drug – bio-affecting and body treating compositions – Plant material or plant extract of undetermined constitution... – Containing or obtained from leguminosae
Reexamination Certificate
2000-05-26
2003-03-18
Pak, John (Department: 1616)
Drug, bio-affecting and body treating compositions
Plant material or plant extract of undetermined constitution...
Containing or obtained from leguminosae
C514S544000, C514S546000, C514S547000, C514S733000, C514S919000, C424SDIG001
Reexamination Certificate
active
06534099
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates, in general, to pesticidal compositions comprising menthyl salicylate. The present invention also relates to synergistic compositions comprising menthyl salicylate in combination with metabolic detoxication inhibitors, piperonyl butoxide (PBO) and signal transduction modulators, such as tyrosine kinase family member inhibitors, (e.g. genistein). The present invention further relates to synergistic composition comprising menthyl salicylate in combination with a unique delivery system (e.g. solvents). This delivery system helps menthyl salicylate to penetrate the target organism and to subsequently be transported to the site of action at a concentration sufficient to kill the insects. The present invention relates, also, to pesticidal compositions containing menthyl salicylate with one or more plant essential oils and/or derivatives thereof to be used as a contact insecticide and repellent against household insects.
BACKGROUND OF THE INVENTION
Pests (invertebrates, insects, arachnids, larvae thereof, etc.) are annoying to humans for a myriad of reasons. Over the years, synthetic chemical pesticides have provided an effective means of pest control. For example, one approach teaches the use of complex, organic insecticides, such as disclosed in U.S. Pat. Nos. 4,376,784 and 4,308,279. Other approaches employ absorbent organic polymers for widespread dehydration of the insects. See, U.S. Pat. Nos. 4,985,251; 4,983,390; 4,818,534; and 4,983,389. Use of inorganic salts as components of pesticides has also been tried, as disclosed in U.S. Pat. Nos. 2,423,284 and 4,948,013, European Patent Application No. 462 347, Chemical Abstracts 119(5):43357q (1993) and Farm Chemicals Handbook, page c102 (1987).
However, it has become increasingly apparent that the widespread use of synthetic chemical pesticides has caused detrimental environmental effects that are harmful to humans and other animals. For instance, the public has become concerned about the amount of residual chemicals that persist in food, ground water and the environment, and that are toxic, carcinogenic or otherwise incompatible to humans, domestic animals and/or fish. Moreover, some target pests have even shown an ability to develop resistance to many commonly used synthetic pesticides. In recent times, regulatory guidelines have encouraged a search for potentially less dangerous pesticidal compositions via stringent restrictions on the use of certain synthetic pesticides. As a result, elimination of effective pesticides from the market has limited economical and effective options for controlling pests. As an alternative, botanical pesticides are of great interest because they are natural pesticides, i.e.; toxicants derived from plants that are safe to humans and the environment.
The problem is even more evident with respect to the treatment of household insects such as cockroaches and ants. Furthermore, the potential toxicity of pesticides is of great concern in the control of human body louse, where the treatment of children and other humans demand certain safety attributes.
Accordingly, there is a great need for novel and effective pesticidal compositions, containing no synthetic pyrethroids, chlorinated hydrocarbons, organophosphates, carbamates and the like, to be used against human body louse and house hold insects. This patent, however, described only the invention of a novel chemical(s) that is highly effective against American and German cockroaches; black ants and harvester ants.
SUMMARY OF THE INVENTION
A primary object of the present invention is to provide a safe and novel pesticidal composition for use against household insects.
Another object of the invention is to provide novel pesticidal compositions containing menthyl salicylate with and without one or more plant essential oils and/or derivatives thereof, natural or synthetic, as a contact insecticide for the control of house hold insects.
It is also an object of the present invention to provide a delivery system that will increase the efficacy of the novel insecticide for controlling household insects.
It is still another object to provide an pesticidal composition and method that has a pleasant scent or is unscented, and that can be applied without burdensome safety precautions.
It is still another object to provide an pesticidal composition and method as described above which can be inexpensively produced or employed.
It is yet another object of the invention to provide an pesticidal composition and method to which insects cannot build resistance.
It is yet another object of the present invention to provide a safe pesticidal composition that can be applied before detection of house hold insects, as a repellent, such as dust or granules.
It is another object of the present invention to provide a synergistic system that will reduce the required concentration of active ingredients, which will increase the safety, and efficacy of the invented insecticide and/or pesticidal blend.
It is another object of the present invention to apply the signal transduction concept to increase the safety and efficacy of menthyl salicylate and other invented blends.
The above and other objects are accomplished by the present invention which is directed to a contact and/or repellent pesticidal composition against household pests, e.g., ants and cockroaches, comprising in admixture with an acceptable carrier, menthyl salicylate. The present invention is also directed to pesticidal compositions comprising menthyl salicylate and at least one plant essential oil and/or a derivative thereof, natural or synthetic, in admixture with suitable carriers. In addition, the present invention is directed to a method for controlling household insects by applying a pesticidally-effective amount of the above pesticidal compositions to a location where pest control is desired.
Additional objects and attendant advantages of the present invention will be set forth, in part, in the description that follows, or may be learned from practicing or using the present invention. The objects and advantages may be realized and attained by means of the instrumentalities and combinations particularly recited in the appended claims. It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not to be viewed as being restrictive of the invention, as claimed.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
All patents, patent applications and literatures cited in this description are incorporated herein by reference in their entirety.
Menthyl salicylate (C
17
H
24
O
3
) is a 2-hydroxybenzoic acid 5-methyl-2-(1-methylethyl)cyclohexyl ester. In one embodiment, the present invention provides an pesticidal composition comprising, in admixture with a suitable carrier and optionally with a suitable surface active agent, comprising menthyl salicylate with one or more plant essential oil compounds and derivatives thereof, natural or synthetic, including racemic mixtures, enantiomers, diastereomers, hydrates, salts, solvates and metabolites, etc.
The plant essential oil or derivative thereof, may be comprised of a monocyclic, carbocyclic ring structure having six-members and is substituted by at least one oxygenated or hydroxyl functional moiety. Examples of plant essential oils encompassed within the present invention, include, but are not limited to, members selected from the group consisting of aldehyde C16 (pure), eugenol, phenylethyl propionate, benzyl alcohol, citronellal, and cinnamic alcohol. The plant essential oils may also include known compounds such as pyrethrins, neem oil, and sesame oil. As these plant essential oil compounds are known and used for other uses, they may be prepared by a skilled artisan by employing known methods. In addition, the tyrosine kinase family member inhibitors, for example genistein, will be used as a pure chemical or through other sources that contain genistein such as soybean oil, are included in this invention.
In a preferred embodiment, the presen
Bessette Steven M.
Enan Essam E.
Ecosmart Technologies, Inc.
Pak John
LandOfFree
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