Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Nitrogen containing other than solely as a nitrogen in an...
Patent
1998-02-09
2000-01-11
Dees, Jose' G.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Nitrogen containing other than solely as a nitrogen in an...
A01N 3324
Patent
active
060136766
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an agricultural chemical composition with remarkably-improved raindrop resistance, comprising a pesticidal component and sorbitan trioleate.
BACKGROUND ART
Active ingredient components useful as a pesticide, such as insecticides and fungicides, have been prepared into a formulation, such as emulsifiable concentrate, emulsion, wettable powder, suspension and water dispersible granule, depending upon their physicochemical properties and the objective to use them practically in agricultural crop fields. In order to supplement the deterioration of long-lasting activity of pesticidal components, which might be caused by any reason such as dilution of the pesticidal components on the surface of plant leaves due to the growth of the leaves themselves, photodegradation of the pesticidal components on the surface of leaves, and carrying away of pesticidal components from the surface of leaves due to rainfalls, etc., and exceeding degree of pesticide application has been performed onto agricultural crops for minimizing their damages caused by pest insects and plant diseases and for keeping the quality of cultivated crops. However, such exceeding degree of pesticide application has imposed a burden not only in terms of laboring and economical point of view but also caused environmental pollution.
Therefore, various efforts to find out the means to reduce the amount of pesticides used in the environment have been made. As a method to prevent the deterioration in efficacy of a pesticide due to rainfalls, a method to prepare a pesticide composition for coating use having good raindrop resistance by containing .alpha.-starch therein is disclosed in Japanese Patent Laid-open No. Sho 54-80423 Gazette, and a wettable powder formulation of which raindrop resistance being improved by an incorporation of a resin in powder therein is disclosed in Japanese Patent Laid-open No. Sho 59-172401 Gazette, and a water dispersible granule with improved-raindrop resistance prepared by incorporating polyvinyl alcohol, carboxymethylcellulose, etc. therein to enhance sticking property is disclosed in Japanese Patent Laid-open No. Hei 2-40301 Gazette, for example.
Whereas, in Japanese Patent Laid-open No. Hei 1-190610 Gazette, a pesticide composition containing 1-10% by weight of sorbitan trioleate is disclosed. However, no description has been made yet on a pesticide composition which contains high content of sorbitan trioleate as much as 10-50% by weight for aiming at improving its raindrop resistance.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to provide a pesticide composition having excellent long-lasting activity by means of improving the raindrop resistance of a pesticide composition on surface of plant leaves, in complying to a request to prolong the activity-continuance period of pesticide compositions.
As a result that the inventors of the present invention had attempted to accomplish such object, they have found out that pesticide formulations, such as an emulsifiable concentrate, an emulsion, a wettable powder, a suspension concentrate and a water dispersible granule, wherein 10-50% by weight of sorbitan trioleate relative to the weight of a whole pesticide component is incorporated, show to have excellent raindrop resistance, whereby they have accomplished the present invention.
Therefore, the present invention is now described in detail in the following.
The present invention is directed to (1) a pesticide composition containing 0.1-70% by weight of a pesticidal component and 10-50% by weight of sorbitan trioleate, relative to the weight of the whole pesticide composition, (2) an emulsifiable concentrate containing 0.1-70% by weight of a pesticidal component, 1-30% by weight of an emulsifier, 10-50% by weight of sorbitan trioleate and a solvent, relative to the weight of the whole emulsifiable concentrate, (3) an emulsion containing 0.1-70% by weight of a pesticidal component, 1-30% by weight of an emulsifier, 10-30% by weight of sorbitan t
REFERENCES:
patent: 4324781 (1982-04-01), Okamoto et al.
patent: 5317004 (1994-05-01), Misselbrook et al.
patent: 5360783 (1994-11-01), Itoh et al.
patent: 5462714 (1995-10-01), Talwalker et al.
Sato Keiichi
Suzuki Masahiro
Tani Michio
Dees Jos,e G.
Nippon Soda Co. Ltd.
Pryor Alton
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