Plant protecting and regulating compositions – Plant growth regulating compositions
Reexamination Certificate
2000-03-23
2001-10-23
Clardy, S. Mark (Department: 1616)
Plant protecting and regulating compositions
Plant growth regulating compositions
C504S348000, C504S362000, C514S690000, C514S975000, C424S195110
Reexamination Certificate
active
06306797
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a solubilized plant growth regulator having a insecticidal/insect-repellent activity and antimicrobial activity and mainly comprising a hiba oil and a surfactant. Further, the present invention relates to a solubilized plant growth regulator having a insecticidal/insect-repellent activity and antimicrobial activity and containing, for example, a sucrose fatty acid ester, ethanol, and propylene glycol, in addition to the aforementioned main components.
Such surfactants include, but are not limited to, polyoxyethylene sorbitan monolaurate and nonionic surfactants prepared from higher alcohols.
2. Description of the Related Art
A variety of plant growth regulators have been developed. Such plant growth regulators should have toxicity against noxious or injurious animals but should have no influence on the other organisms than the injurious animals.
Of numerous plant growth regulators prepared from inorganic or organic compounds, plant growth regulators using a hiba oil or hinokitiol for obtaining higher insecticidal/insect-repellent and antimicrobial activities are few in number.
Especially, no solubilized plant growth regulator comprising a hiba oil and having insecticidal/insect-repellent and antimicrobial activities has been developed.
Such plant growth regulators have toxicity against noxious or injurious animals and must be as harmless and nontoxic to the other organisms than injurious animals as possible.
In addition, demands have been made to provide plant growth regulators having insecticidal/insect-repellent and antimicrobial activities, which are composed of harmless natural products and no other.
Specifically, plant growth regulators having a high safety and a very high effect have been demanded.
SUMMARY OF THE INVENTION
Accordingly, an object of the invention is to solve the above problems and to provide a plant growth regulator mainly including components that are harmless in the human body and having insecticidal/insect-repellent and antimicrobial activities by action of hinokitiol or a hiba oil, which plant growth regulator is solubilized and can be more efficiently applied to a plant.
Specifically, the invention provides, according to a first aspect, a plant growth regulator including a mixture of 0.1% by weight to 50% by weight of a hiba oil, 1% by weight to 39% by weight of a sucrose fatty acid ester, 5% by weight to 45% by weight of ethanol, 5% by weight to 45% by weight of propylene glycol, 1% by weight to 88.9% by weight of polyoxyethylene sorbitan monolaurate, and 0% by weight to 74.9% by weight of water. The plant growth regulator is solubilized and has a total content of the sucrose fatty acid ester and the polyoxyethylene sorbitan monolaurate in a range from 15% by weight to 89.9% by weight.
According to a second aspect, the invention provides a plant growth regulator which includes a mixture of 0.1% by weight to 50% by weight of a hiba oil, 1% by weight to 39% by weight of a sucrose fatty acid ester, 5% by weight to 45% by weight of ethanol, 5% by weight to 45% by weight of propylene glycol, 1% by weight to 88.9% by weight of a nonionic surfactant prepared from a higher alcohol, and 0% by weight to 74.9% by weight of water. The plant growth regulator is solubilized and has a total content of the sucrose fatty acid ester and the nonionic surfactant prepared from a higher alcohol in a range from 15% by weight to 89.9% by weight.
The invention provides, according to a third aspect, a plant growth regulator which is solubilized and includes a mixture of 0.1% by weight to 50% by weight of a hiba oil, 5% by weight to 15% by weight of ethanol, 5% by weight to 15% by weight of propylene glycol, 15% by weight to 89.9% by weight of polyoxyethylene sorbitan monolaurate, and 0% by weight to 74.9% by weight of water.
In a fourth aspect, the invention provides a plant growth regulator which is solubilized and includes a mixture of 0.1% by weight to 50% by weight of a hiba oil, 5% by weight to 15% by weight of ethanol, 5% by weight to 15% by weight of propylene glycol, 15% by weight to 89.9% by weight of a nonionic surfactant prepared from a higher alcohol, and 0% by weight to 74.9% by weight of water.
The invented plant growth regulator may be, according to a fifth aspect, a Plant growth regulator which is solubilized and includes a mixture of 0.1% by weight to 45% by weight of a hiba oil, 5% by weight to 15% by weight of ethanol, 10% by weight to 20% by weight of sorbitan monolaurate, 40% by weight to 60% by weight of polyoxyethylene sorbitan monolaurate, and 0% by weight to 44.9% by weight of water.
Further, the invention provides, according to a sixth aspect, a plant growth regulator which is solubilized and includes a mixture of 0.1% by weight to 45% by weight of a hiba oil, 5% by weight to 15% by weight of ethanol, 10% by weight to 20% by weight of a nonionic surfactant prepared from a higher alcohol, 40% by weight to 60% by weight of another nonionic surfactant prepared from a higher alcohol, and 0% by weight to 44.9% by weight of water. In other words, the plant growth regulator may include two species of surfactants.
Such a solubilized plant growth regulator may be produced by a process for producing a plant growth regulator according to a seventh aspect. The process includes the steps of mixing 0.1% by weight to 50% by weight of a hiba oil, 1% by weight to 39% by weight of a sucrose fatty acid ester, 5% by weight to 45% by weight of ethanol, 5% by weight to 45% by weight of propylene glycol, 1% by weight to 88.9% by weight of polyoxyethylene sorbitan monolaurate, and 0% by weight to 74.9% by weight of water to yield a mixture, in which the total content of the sucrose fatty acid ester and the polyoxyethylene sorbitan monolaurate is in a range from 15% by weight to 89.9% by weight, and stirring the mixture at a temperature of about 30° C. or higher to yield a solubilized plant growth regulator.
In addition and advantageously, such a solubilized plant growth regulator may also be obtained by a process for producing a plant growth regulator according to an eighth aspect. The process includes the steps of mixing and stirring 10% by weight to 20% by weight of a nonionic surfactant prepared from a higher alcohol and 0% by weight to 44.9% by weight of water to yield an emulsion or a solubilized solution and adding 0.1% by weight to 45% by weight of a hiba oil, 5% by weight to 15% by weight of ethanol, and 40% by weight to 60% by weight of another nonionic surfactant prepared from a higher alcohol to the emulsion or solution to yield a solubilized plant growth regulator.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The invented plant growth regulator can be obtained by mixing and stirring main components, a hiba oil, ethanol, and polyoxyethylene sorbitan monolaurate or another surfactant or a nonionic surfactant prepared from a higher alcohol, and solubilizing the resulting mixture.
The present inventors focused attention on an insecticidal activity and an antimicrobial activity of a hiba oil and devised to use the hiba oil in a plant growth regulator. However, they found that a plant growth regulator including the hiba oil alone cannot be homogeneously and efficiently applied onto a plant.
Accordingly, the invention is also intended to provide a solubilized plant growth regulator as a solution containing a mixture of the hiba oil and a surfactant.
The present inventors found that such a solubilized plant growth regulator can be obtained by incorporating 50% by weight or more of a surfactant in the solution.
The invented plant growth regulator is not limited to the solubilized plant growth regulator and also includes an emulsified plant growth regulator in which materials are mixed to some extent. Such an emulsified plant growth regulator can be diluted for spraying and can efficiently and homogeneously spray the hiba oil to a plant.
These solutions and emulsions have been provided focusing attention on the insecticidal and antimicrobial activities of the hiba oil, but the advantages o
Clardy S. Mark
Jollive Co., Ltd.
Nixon & Vanderhye P.C.
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