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Antifouling coating composition, antifouling coating film, and method of preventing fouling of base

An antifouling coating and composition technology, which is applied in antifouling/underwater coatings, polyester coatings, rosin coatings, etc., can solve the influence of cooling water supply and drainage circulation, the decrease in the strength and function of structures in water, and the increase in surface roughness and other problems, to achieve the effects of excellent standing antifouling, excellent long-term antifouling, and good coating operability.

Inactive Publication Date: 2011-10-19
NATIONAL MARITIME RESEARCH INSTITUTE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When these aquatic organisms multiply on the surface of the substrate, the surface roughness of the ship increases, which may lead to a decrease in speed and an increase in fuel consumption. In addition, the corrosion-resistant coating coated on the surface of the substrate is damaged, which may cause damage to structures in the water. Decrease in strength and function, significant shortening of service life such damage
In addition, if aquatic organisms attach to and reproduce on fishing nets such as breeding nets or fixed nets, there may be serious problems such as the lack of oxygen and death of fishing and hunting organisms caused by the blockage of the mesh.
In addition, if aquatic organisms adhere to and multiply on seawater supply and drainage pipes of thermal power plants, nuclear power plants, etc., it may affect the supply and drainage circulation of cooling water.

Method used

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  • Antifouling coating composition, antifouling coating film, and method of preventing fouling of base
  • Antifouling coating composition, antifouling coating film, and method of preventing fouling of base
  • Antifouling coating composition, antifouling coating film, and method of preventing fouling of base

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Embodiment

[0116] Hereinafter, although this invention is demonstrated more concretely based on an Example and a comparative example, this invention is not limited to these Examples. In addition, in the following examples and comparative examples, "parts" and "%" represent "parts by weight" and "% by weight", respectively.

[0117]

manufacture example 1

[0118] (Manufacture example 1: Manufacture of polyester resin solution (a-1))

[0119] Mix 371.0 parts of isophthalic acid, 427.1 parts of sebacic acid, 238.2 parts of neopentyl glycol, and 89.0 parts of ethylene glycol in a 2L 4-neck flask, and react at 220°C for 5 hours in the presence of nitrogen (esterification reaction) . During the reaction, the generated water was removed by reflux dehydration, the acid value was measured by the KOH titration method and the hydroxyl value was measured by the acetylation method, and the reaction was stopped when the acid value of the solid component was 100 and the hydroxyl value of the solid component was 30. After cooling the reaction solution, it was diluted with methyl isobutyl ketone to obtain a nonvolatile content of 70.3%, an acid value of 70 (100 in terms of solid content), a hydroxyl value of 21 (30 in terms of solid content), and a viscosity of 320 mPa. · s, a polyester resin solution (a-1) having a weight average molecular we...

manufacture example 2

[0120] (Manufacture example 2: Manufacture of polyester resin solution (a-2))

[0121] Except having changed the usage-amount of a raw material into the quantity shown in Table 1, it carried out similarly to Example 1, and obtained the polyester resin solution (a-2).

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Abstract

A two-pack hydrolyzation type antifouling coating composition characterized by comprising a first component, which comprises a polyester resin having an acid value on a solid basis of 50-200, a hydroxy value on a solid basis of 100 or lower, and a viscosity at 25 C of 500 mPas or lower, and a second component, which is a paste containing zinc oxide and cuprous oxide, and by containing a volatile organic compound in an amount of 400 g / L or smaller relative to the total of the first and second components. Provided is an antifouling coating film characterized by being obtained by curing the two-pack hydrolyzation type antifouling coating composition. A method of preventing the fouling of a base is also provided which comprises coating or impregnating the base with the two-pack hydrolyzation type antifouling coating composition and then curing the composition to thereby form an antifouling coating film.

Description

technical field [0001] The present invention relates to a two-component hydrolyzable antifouling paint combination capable of imparting excellent antifouling properties to the surfaces of substrates such as ships, underwater structures, fishing nets, and fishing gear while reducing environmental loads and influences on the human body object, and an antifouling coating film using the antifouling coating composition and an antifouling method for a substrate. Background technique [0002] For ships, underwater structures, fishing nets, etc., animals such as oysters, mussels, and barnacles, plants such as seaweed, and various aquatic organisms such as bacteria tend to adhere to the surface of the substrate exposed to water for a long time. When these aquatic organisms multiply on the surface of the substrate, the surface roughness of the ship increases, which may lead to a decrease in speed and an increase in fuel consumption. In addition, the corrosion-resistant coating coated ...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D5/16C09D7/12C09D193/04
Inventor 松冈一祥村上睦尚山根健次仁井本顺治葛原亨川口健一小岛靖
Owner NATIONAL MARITIME RESEARCH INSTITUTE
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