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Algae inhibitor, method for producing algae inhibitor and algae inhibition method

A manufacturing method and inhibitor technology, applied in the direction of herbicides and algicides, botany equipment and methods, chemicals for biological control, etc., can solve the problems of insufficient inhibition of algae, achieve efficient use, high solubility High, the effect of inhibiting algae

Inactive Publication Date: 2018-08-03
REFINE HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In recent years, the demand for algae inhibitors with low environmental burden and high efficiency (high inhibitory effect) has gradually increased, but the above-mentioned known technologies are not sufficient for proper inhibition of algae, and there is room for further improvement

Method used

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  • Algae inhibitor, method for producing algae inhibitor and algae inhibition method
  • Algae inhibitor, method for producing algae inhibitor and algae inhibition method
  • Algae inhibitor, method for producing algae inhibitor and algae inhibition method

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preparation example Construction

[0081] Regarding the preparation of the binder, the "natural product-derived polymer" and the "non-environmental polluting substance" are preferably prepared by dispersing or dissolving them in water in a slurry state.

[0082] In addition, when the "non-environmental pollutant" and the gelling agent are used together, it is preferable that the gelling agent is also prepared in advance as an aqueous solution (or fine dispersion) and then mixed with each other.

[0083] In either case, it is preferred to dry it afterwards, and if it does not form granules or flakes (if necessary), it is pulverized to make it into granules or flakes after drying, and the obtained material is used as a core agent (or core agent ingredients).

[0084] From the viewpoint of enclosing the medicinal ingredient inside the core dosage form and allowing the medicinal ingredient present inside the core dosage form to be released slowly, it is preferable to dissolve the medicinal ingredient in "natural pr...

Embodiment 1

[0127] [Research on core agent]

[0128] Add the following various binders to the active ingredient consisting of lysine hydrochloride and malonic acid to make an algae inhibitor. As "non-environmental polluting substances", sodium carboxymethyl cellulose (CMCNa) as a salt of carboxymethyl cellulose is used; calcium chloride (CaCl 2 ); As the "polymer derived from natural products", the core agent was made using pectin, which is a polysaccharide, and polyvinyl alcohol (PVA) which is neither "polymer derived from natural products" nor "non-environmental pollutant". Research.

[0129] The composition of the algae inhibitor contained 35% by mass of lysine hydrochloride, 35% by mass of malonic acid, 28% by mass of the binder, and 1% by mass of the coating agent based on the entire algae inhibitor.

[0130] As a coating agent, ethylcellulose (EC) was used.

[0131] Lysine hydrochloride and malonic acid are mixed, and carboxymethylcellulose sodium (CMCNa) and calcium chloride (Ca...

Embodiment 2

[0144] [Research on particle size of algae inhibitor]

[0145] Next, the algae inhibitor was made into granules, and the change in the dissolution rate of the medicinal ingredient was studied when the particle size was changed.

[0146] CMCNa and calcium chloride were added to lysine hydrochloride and malonic acid and granulated, and the granulated flaky drug was coated with EC as a coating agent to produce an algae inhibitor. Regarding the composition of the algae inhibitor, 34% by mass of lysine hydrochloride, 34% by mass of malonate, 15% by mass of CMCNa, 15% by mass of calcium chloride, and 1% by mass of the entire algae inhibitor % by mass, moisture content is 1% by mass.

[0147] In addition, algae inhibitors with particle diameters of about 7 mm, 5 mm, and 3 mm were prepared.

[0148] And, the dissolution rate of malonic acid per hour was measured by the same procedure and method as in Example 1.

[0149] The results are shown in figure 2 . The larger the particle...

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Abstract

The present invention relates to: an algae inhibitor, which is to be floated on water so as to inhibit algae floating thereon, characterized by comprising at least an algaecide component comprising lysine or a lysine salt and malonic acid or a malonic acid salt, a core agent which contains a binder for carrying the algaecide component, and a coating agent which exists on the surface of the core agent and controls the sustained release properties of the algaecide component; a method for producing the algae inhibitor; and an algae inhibition method. The binder is preferably a component selectedfrom the group consisting of "polymers derived from natural materials" and "materials causing no environmental pollution".

Description

technical field [0001] The present invention relates to an algae inhibitor having at least a core agent containing a specific medicinal ingredient and a coating agent, a method for producing the algae inhibitor, and a method for inhibiting algae. Background technique [0002] In recent years, in water environments such as lakes, marshes, and reservoirs, algal blooms such as blue-green algae have caused problems such as destruction of ecosystems, odor, and deterioration of water quality. In particular, blue-green algae and the like produce toxic substances, and there have been reports of death of not only a large number of aquatic animals but also land animals. In addition, blue-green algae and the like float on the water surface during sunshine and reproduce by photosynthesis, so they block the light path to the water and hinder the photosynthesis of other photosynthetic organisms. Stay in the water for respiration after sunshine, thereby absorbing the dissolved oxygen in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/00A01N25/26A01N37/04A01N37/44A01P13/00C02F1/50
CPCA01N25/00A01N25/26A01N37/04A01N37/44C02F1/50
Inventor 坂本正尔中条胜岩崎洋彼谷邦光竹山友洁高桥宏彰岩船光紘
Owner REFINE HLDG CO LTD
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