Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing – Organic pressurized fluid
Reexamination Certificate
1998-11-17
2001-01-30
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
Organic pressurized fluid
C424S405000, C424S406000
Reexamination Certificate
active
06180088
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a foamable aerosol concentrate composition, a foamable aerosol agricultural-chemical composition, and a method of controlling diseases and insect pests. More particularly, the present invention relates to a foamable aerosol concenrate composition suitable for horticulure as a pastime in which an active ingredient of agricultural-chemicals having insecticidal and/or fungicidal activities and also having systemic action through a plant body and a surfactant are dissolved in glycols that are liquid at normal temperature; a foamable aerosol agricultural-chemical composition including the concentrate composition and a propellant both of which are filled in an aerosol container; a method of controlling diseases and insect pests through spraying application of the foamable aerosol agricultural-chemical composition to stems and/or branches of plants to be treated.
2. Description of the Related Art
In general, preparations of agricultural chemicals, such as preparations of agricultural chemicals for horticulture as a pastime, are used as formulations of emulsion, wettable powders, granules or aerosol. All these formulations are for sprinkling application agents. They exhibit their effects by being applied either with or without dilution with water on crops or insect pests and weeds to be controlled. However in these applications, large quantity of active ingredients are often wasted as they fail to reach crops or insect pests that are the targets of control. Emulsion, wettable powders and aerosol do not always produce favorable results in view of economic efficiency and environmental sanitation because of their loss at sprinkling or spraying and the adhesion of the agents to men, live stocks and useful things. On the other hand, granules are not scattered in the air, as they are treated on the surface of the soil. However, soil adsorption prevents active ingredients from being absorbed by crops and weeds as the ingredients are adsorbed by the soil. Therefore, large part of applied agents are not used effectively.
In contrast to these preparations of agricultural-chemicals for horticulture as a pastime, agricultural-chemical coatings, in which agents are directly applied to the shaft of plants, are known among general preparations of agricultural chemicals. Quantity of wasted drugs, which cannot reach crops or targets for pest control, is little in agricultural-chemical coatings. Therefore, it is a desirable preparation of agricultural chemicals for economic efficiency and environmental sanitation.
For example, a paste-like agricultural-chemical coating agent described in Japanese Patent Application Laid-open No. Sho 62-42902, in which an agricultural-chemical ingredient is mixed and dispersed in water or an organic solvent together with a film forming agent and a filler, is known as a conventional agricultural-chemical coating agent. However, foamy aerosol spray coating agent has not been known yet.
Recently, agricultural chemicals considering environmental sanitation have been demanded. Especially it has been requested to decrease the application amount of agricultural chemicals as much as possible because of environmental sanitation concern. However, sprinkling and spraying of agricultural chemicals have still been mainly practiced for controlling diseases and insect pests on crops and flowering plants. Agricultural chemical coating agents are desirable in the environmental sanitation aspect as one of solutions of the problem mentioned above. However, currently, it is practiced only for controlling diseases and insect pests of fruit trees. This is because its application needs spreading the paste thinly by the use of a pallet or brush and it is difficult to control the amount of coating. These inconveniences in handling keep agricultural-chemical coatings away from practical use as agricultural chemicals for horticulture as a pastime. Therefore, it is requested to develop preparations of agricultural chemicals which are easier to use while having environmental sanitation benefits mentioned above.
The inventors have invented the present invention by finding out foamable aerosol agricultural-chemical composition and a cocentrate composition for its preparation that have solved the above-mentioned problems. The composition of the present invention is used easily especially in horticulure as a pastime.
BRIEF SUMMARY OF THE INVENTION
An object of the present invention is to provide a foamable aerosol concentrate composition characterized by comprising an active ingredient of agricultural chemicals having a systemic action through a plant body, surfactants and glycols that are liquid at normal temperature, and a foamable aerosol agricultural-chemical composition comprising the foamable aerosol concentrate composition and a propellant.
Another object of the present invention is to provide a novel method of controlling diseases and insect pests by the use of the foamable aerosol agricultural-chemical composition.
The present invention is not limited within horticulure as a pastime that is mainly for home and garden. It includes embodiments used for agricultural and holticultural practice.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
A foamable aerosol according to the present invention means one by which an agricultural-chemical composition is jetted from a container together with a propellant so as to be foamingly coated. Foaming mainly takes place at jetting. However, it may take place after jetting. Foaming aerosol is free from scattering and therefore, it can apply larger quantity of drugs to the surface of the target than liquid agricultural chemicals. Furthermore, treated composition has a property of retaining the drugs around the sprayed surface for a long period after treatment.
As usable active ingredients of agricultural chemicals, it can be used any agricultural chemical ingredients which are solid or liquid at normal temperature, have controlling effects on diseases and insect pests of crops and flowering plants, and have a property of exhibiting the effect by a systemic action into a plant body through the treatment on stems and/or branches. Active ingredients of agricultural chemicals will be explained in detailed below. However, the present invention is not limited to them.
Among active ingredients of agricultural chemicals listed in “The Pesticide Manual” (published by British Crop Protection Council, Royal Society of Chemistry), those having systemic action in the section “Mode of action” are given as examples of active ingredients of agricultural chemicals having systemic action through a plant body. Compounds among insecticides having systemic action such as organo-phosphorus insecticides and chloronicotinyl insecticides are the examples of preferable insecticides. Examples of preferable fungicidal agents include compounds having a systemic action among azole antifungal, phenylalanine antifungal and methoxyacrylate antifungal compounds. Following active ingredients of agricultural chemicals can be exemplified as especially preferable compounds. These compounds can be used separately or it is also possible to use two or more compounds at the same time.
(1) (E)-N
1
-[(6-cholro-3-pyridyl)methyl]-N
2
-cyano-N
1
-methylacetamidine (general name: acetamiprid, hereinafter referred to as “compound A”)
(2) 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine (general name: imidachloprid, hereinafter referred to as “compound B”)
(3) (E)-N-(6-chloro-3-methylpyridylmethyl)-N-ethyl-N′-methyl-2-nitrovinylidenediamine (general name: nitenpyram, hereinafter referred to as “compound C”)
(4) O,S-dimethyl acetylphosphoroamidothioate (general name: acephate, hereinafter referred to as “compound D”)
(5) Dimethyl (E)-1-methyl-2-(methylcarbamoyl)-vinylphosphate (general name: monocrotophos, hereinafter referred to as “compound E”)
(6) Methyl (E)-2-{2-[6-(2-cyanophenoxy)pyridin-4-yloxy]-phenyl}-3-methoxyacrylate (general name: azoxystrobin, hereinafter refer
Baba Koji
Fukada Minoru
Kodama Hiroshi
Ohtsubo Shigeki
Shimada Takehiro
Nihon Nohyaku Co. Ltd.
Oliff & Berridg,e PLC
Page Thurman K.
Ware Todd D
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