JPS6013002B2 - Non-medical bactericidal algaecide - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel non-medical bactericidal lacquer that has extremely low toxicity to the human body and various useful organisms, has a long duration of efficacy, and is easy to industrially produce.

More specifically, a non-medical product containing as an active ingredient a steel complex saccharide compound that precipitates when mixed with a solution obtained by contacting a polysaccharide compound and a steel compound in an amine or ammonia solution and one alcohol. Concerning fungicidal and poisonous pesticides.

Since copper agents have traditionally had strong bactericidal properties, they have come to occupy an important position in practical use.

The action properties of copper agents are known as protective fungicides that gradually release copper ions and protect against infection by plant pathogens. A typical steel agent is Bordeaux liquid, which is widely used, but it is time-consuming to prepare in-house, its quality is inconsistent and its effectiveness varies depending on the ingenuity of the manufacturing method, and it is susceptible to phytotoxic effects due to copper ions. affect It is believed that it is best to release steel ions gradually to a degree that does not cause chemical damage to the crops, thereby exerting a bactericidal effect, and permanent steel salts are used in place of water-repellent steel. Inorganic steel compounds such as basic sulfuric acid steel and basic chloride steel are easy-to-use alternatives to Bordeaux liquid, but they are not as good as Bordeaux liquid in terms of physical properties and chemical damage. Furthermore, organic steel fungicides solve these problems. For example, oxalate steel, oxine steel, terephthalate steel, etc. are known, among which oxine steel and copper terephthalate steel stably retain copper ions, which have strong bactericidal and tough properties. It is extremely advantageous in that it works over a long period of time, releases a large amount of steel ions at once, so there is little concern that the object to which it is applied will be exposed to copper ion toxicity, and it is easy to handle. be. Organic steel compounds have various characteristics, but in recent years, the safety of chemicals containing organic compounds that have been applied to agricultural products has been investigated by investigating the toxicity of organic compounds, the residue of organic compounds in crops and soil, and the decomposition process. Must be proven.
Therefore, it is important to use organic copper compounds that have organic parts that are fertile and can remain safely in crops and soil. Therefore, the present inventors used a polysaccharide compound that is a natural product, is harmless to humans and animals, and is safe even if it remains, and created a solution obtained by contacting it with a copper compound in an amine or ammonia solution. It has been found that a compound containing as an active ingredient a compound of steel bran which forms a precipitate when mixed with a monohydric alcohol has an excellent effect and does not cause any phytotoxicity to crops, etc. In other words, the reason for this effect is that steel ions are stably retained due to the unique structure of the precipitation product.
Therefore, there is no risk of releasing a large amount of copper ions at once. The steel complex saccharide compound as a precipitated product as in the present invention is manufactured by J-ship T-ship LiebigS AnMIenderC.
hemie 53289-94 (1937), and is presumed to form a copper complex of saccharide compounds. For example, a steel composite made from saccharose and hydroxide steel is presumed to be of the form .

The bran compound used in the present invention is sucrose.

Examples include lactose, lactose, maltose, cellobiose, raffinose, cellulose, starch, etc., and stereoisomers thereof or mixtures thereof can also be used. Also, one or more of these may be used. Further, as the steel compound used in the present invention, the following can be used. Hydroxide steel, sulfate steel, copper chloride, nitrate steel, basic sulfate steel,
Inorganic steel compounds such as basic carbonate steel, oxidized steel, phosphate steel, silicate steel, basic chloride steel, etc., acetic acid steel, oxalic acid steel, salicylic acid steel, benzoic acid steel, oleic acid steel, stearic acid steel, Terephthalate steel, copper maleate, glutamate steel,
Examples include organic steel compounds such as copper aspartate, citrate steel, benzenetricarponate steel, and complex salts in which organic sites are bonded via copper. It is also possible to use one or more of the steel compounds mentioned above.

These polysaccharide compounds and copper compounds are brought into contact at room temperature, and an amine or aqueous ammonia solution is used as the reaction medium. Examples of amines include methylamine, ethylamine, n-propylamine, n-butylamine, n-
Octylamine, 2-ethylhexylamine, diarylamine, cyclohexylamine, benzylamine, monoethanolamine, diethanolamine, triethanolamine, N-methyldiethanolamine, 2-ethoxyethylamine, 3-isoproboxypropylamine, ethylenediamine, diethylenetriamine, Examples include ethylenetetramine. It can also be easily obtained by increasing the temperature of the reaction conditions. By concentrating the insoluble precipitate from the product solution produced in this way, and gradually mixing the solution obtained in this way with a monohydric alcohol, the steel complex saccharide, which is the precipitated product of the present invention, can be obtained by removing ammonia etc. Compounds can be easily obtained. Monohydric alcohols include methanol, ethanol, n-propanol, isopropanol,
-ol, butanol, ethoxyshetanol, furfuryl alcohol, etc. can be used. When using the precipitated product of the present invention, it may be used as it is, or it may be diluted or suspended with water, etc., or it may be prepared as a powder, wettable powder, etc. in a conventional manner together with an auxiliary agent as used in common pharmaceutical preparations. It may also be formulated in the form of granules, aerosols, floatables, and the like.

As the auxiliary agent, an appropriate one can be selected and used depending on the formulation form from non-storing carriers such as clay, bentonite, chloride, talc, and selinite, surfactants, and various spreading agents. Furthermore, one or more of the precipitated products of the present invention may be used, or other active ingredients such as sterilizing, pesticidal, herbicidal, hormonal, and fertilizer ingredients may be used in combination as much as possible. In addition to the agricultural and horticultural fields, the products of the present invention can also be used in
If used in a paint, it can prevent contamination and damage caused by capi and other microorganisms that occur in the paint film.

It can also suppress the growth of algae caused by bacteria and ruts, and can also prevent mollusk parasitism.
It is also possible to control slime and algae generated in water by applying various solid preparation methods to industrial water, cooling water, papermaking water, etc. Production Example 1 Add 12 parts of hydroxide steel to 150 parts of 10% ammonia water and mix.

After 8 hours of cellulose was added at room temperature and continued to concentrate for 1 hour, the insoluble matter was separated by furnace. The furnace solution was gradually dropped into ice-cooled 500ml methanol to form a precipitate, which was then separated by furnace. The separated product is washed several times with methanol. This is dried and pulverized. The table below shows the precipitated products formed in a similar manner.

Production example 2 12% hydroxide steel and 20% methylamine aqueous solution 150%
Add it inside and worship it.

Next, 8 ounces of cellulose was added at room temperature and the stirring was continued, after which the insoluble matter was separated by furnace. The furnace solution was gradually dropped into ice-cooled 500 ml of methanol to form a precipitate, which was separated by furnace. The separated product is washed with methanol. Dry this and pulverize it. The table below shows the precipitated products formed in a similar manner. Example 1 (Cucumber downy mildew and powdery mildew control test) Cucumbers (variety: Tokiwa Hikari No. 3,
A predetermined dilution of the drug of the present invention was sprayed onto true leaves (1q female) using a sprayer.

The exam will be conducted in 3 sections (1 section IS book), and 1
Spraying was carried out three times per week, and an investigation was conducted one week after the final spraying. Regarding the control effect, the number of lesions of each disease was counted, and the control value was calculated from this. Example 2 Using tomatoes grown in the field (variety: Kasai Fukuju, 7 true leaves),
A tomato late blight control effect test was conducted.

The test chemical was diluted with water to 50%, and sprayed on tomatoes three times every 7 days using a sprayer (inoculated with tomato late blight fungus spores on the 2nd day after the first spraying), and 7 days after the final spraying. investigated. In the survey, the number of vermilion leaflets with Enorrhea per area was counted, and the control value was calculated from this. Example 3 A paint containing a fine powder of the product of the present invention was applied to an iron test piece, and a bactericidal activity test was conducted on the film.

Amber rack ■ (Rohm and Haas product) 2 dry G
2, titanium oxide (1), and Solvesso 150 (Solvesso 150) (0.65) by weight were mixed completely using a roller mill.

The weight of this paint is 9, and the product of the invention is 5.
The mixture was mixed uniformly in the following proportions, coated on a soft iron test piece according to JIS-G-3303 using a doctor blade, and heat-treated. Bacillus subtilis (B.
acm melon subtilis). The growth inhibition phenomenon on the coating film was measured by counting the number of colonies. Example 4 Put fresh water in which Porphyra algae mainly occurs into a pot, add 0.2 t of characteristic powder of the products of the present invention '1), '2) and (17), and let it coagulate gently. After Azusa, it was left for one week.

Claims (1)

[Claims] 1. One or more saccharide compounds selected from satucalose, lactose, raffinose, maltose, cellobiose, starch, and cellulose are brought into contact with a copper compound selected from inorganic copper compounds and carboxylic acid copper compounds in an amine or ammonia solution. A non-medical bactericidal algaecide characterized by containing as an active ingredient a copper complex saccharide compound that forms a precipitate when the resulting solution is mixed with a monohydric alcohol.