Two-component antifouling paint composition, antifouling coating film, antifouling substrate, and method for producing antifouling substrate

Abstract

The present invention provides a two-component antifouling paint composition exhibiting excellent consumption durability and long-term antifouling properties against marine organisms. The two-component antifouling paint composition of the present invention is characterized in that it contains (A) a first component containing (meth)acrylate, a second component containing (B) an amino group-containing compound, and , the (C) antifouling agent in any one of the second components, either or both of the (A) (meth)acrylate and (B) amino group-containing compounds have an ether structure, and in (A) The total weight of (meth)acrylate contains 50% by weight or more of (meth)acrylate with more than three functional groups, and (B) the amino group-containing compound is 100 parts by weight of (A) (meth)acrylate 20 to 100 parts by weight.

Description

Technical field

[0001] The present invention relates to a two-component antifouling coating composition, an antifouling coating film composed of the antifouling coating composition, an antifouling substrate, and a method for producing the antifouling substrate. Background technique

[0002] In ships, underwater structures, fishing nets, etc., various aquatic organisms such as oysters, mussels, barnacles, and other animals, plants such as seaweed, and bacteria, etc., are easily attached to the surface of substrates immersed in water for a long time. If these aquatic organisms multiply on the surface of the substrate, the surface roughness of the ship will increase, resulting in a decrease in speed and an increase in fuel costs. In addition, the anti-corrosion coating applied on the surface of the substrate will be damaged, and underwater structures will occur. There is a risk of damage such as a decrease in the strength or function of the product, or a significant reduction in lif...

Examples

Embodiment

[0210] Hereinafter, the present invention will be described in more detail based on examples and comparative examples, but the present invention is not limited at all by the following examples.

[0211] Manufacturing of hydrolyzed resin:

[0212] ·Manufacturing of side chain terminal type copolymer (a1) containing metal salt bond

manufacture example 1

[0214] 30 parts by weight of propylene glycol monomethyl ether (PGM) and 40 parts by weight of xylene were added to a four-necked flask equipped with a condenser, a thermometer, a dropping funnel, and a stirrer, and the temperature was raised to 100°C while stirring. Next, the mixture composed of the monomers shown in Table 1 and the polymerization initiator was dropped from the dropping funnel at a constant rate over 3 hours. After the dropwise addition, 1 part by weight of tert-butyl peroxyoctanoate and 10 parts by weight of xylene were added dropwise over 2 hours, and after stirring for 2 hours, 20 parts by weight of xylene was added to obtain a side chain terminal type metal salt-containing bond Reaction mixture of copolymer (a1).

[0215] The viscosity and solid content (%) as characteristic values ​​of the obtained copolymer (a1) or the reaction mixture containing the above-mentioned copolymer (a1) were evaluated. The results are shown in Table 1.

[0216] [Table 1]

[0217]...

manufacture example 2

[0220] [Production Example 2] Production of monomer (a21) containing metal salt bond

[0221] Into a four-necked flask equipped with a condenser, a thermometer, a dropping funnel, and a stirrer, 85.4 parts by weight of propylene glycol methyl ether (PGM) and 40.7 parts by weight of zinc oxide were added, and the temperature was raised to 75° C. while stirring.

[0222] Next, a mixture consisting of 43.1 parts by weight of methacrylic acid (MAA), 36.1 parts by weight of acrylic acid (AA), and 5 parts by weight of water was dropped at a constant speed over 3 hours from the dropping funnel. After the dropping, the reaction solution changed from a milky white state to a transparent state. After stirring for another 2 hours, 36 parts by weight of propylene glycol methyl ether (PGM) were added to obtain a transparent metal salt bond-containing monomer solution (a21). The solid content of the obtained mixture solution of the metal salt bond-containing monomer solution (a21) was 44.8% by ...

Technical field

[0001] The present invention relates to a two-component antifouling coating composition, an antifouling coating film composed of the antifouling coating composition, an antifouling substrate, and a method for producing the antifouling substrate. Background technique

[0002] In ships, underwater structures, fishing nets, etc., various aquatic organisms such as oysters, mussels, barnacles, and other animals, plants such as seaweed, and bacteria, etc., are easily attached to the surface of substrates immersed in water for a long time. If these aquatic organisms multiply on the surface of the substrate, the surface roughness of the ship will increase, resulting in a decrease in speed and an increase in fuel costs. In addition, the anti-corrosion coating applied on the surface of the substrate will be damaged, and underwater structures will occur. There is a risk of damage such as a decrease in the strength or function of the product, or a significant reduction in lif...

Examples

Embodiment

[0210] Hereinafter, the present invention will be described in more detail based on examples and comparative examples, but the present invention is not limited at all by the following examples.

[0211] Manufacturing of hydrolyzed resin:

[0212] ·Manufacturing of side chain terminal type copolymer (a1) containing metal salt bond

manufacture example 1

[0214] 30 parts by weight of propylene glycol monomethyl ether (PGM) and 40 parts by weight of xylene were added to a four-necked flask equipped with a condenser, a thermometer, a dropping funnel, and a stirrer, and the temperature was raised to 100°C while stirring. Next, the mixture composed of the monomers shown in Table 1 and the polymerization initiator was dropped from the dropping funnel at a constant rate over 3 hours. After the dropwise addition, 1 part by weight of tert-butyl peroxyoctanoate and 10 parts by weight of xylene were added dropwise over 2 hours, and after stirring for 2 hours, 20 parts by weight of xylene was added to obtain a side chain terminal type metal salt-containing bond Reaction mixture of copolymer (a1).

[0215] The viscosity and solid content (%) as characteristic values ​​of the obtained copolymer (a1) or the reaction mixture containing the above-mentioned copolymer (a1) were evaluated. The results are shown in Table 1.

[0216] [Table 1]

[0217]...

manufacture example 2

[0220] [Production Example 2] Production of monomer (a21) containing metal salt bond

[0221] Into a four-necked flask equipped with a condenser, a thermometer, a dropping funnel, and a stirrer, 85.4 parts by weight of propylene glycol methyl ether (PGM) and 40.7 parts by weight of zinc oxide were added, and the temperature was raised to 75° C. while stirring.

[0222] Next, a mixture consisting of 43.1 parts by weight of methacrylic acid (MAA), 36.1 parts by weight of acrylic acid (AA), and 5 parts by weight of water was dropped at a constant speed over 3 hours from the dropping funnel. After the dropping, the reaction solution changed from a milky white state to a transparent state. After stirring for another 2 hours, 36 parts by weight of propylene glycol methyl ether (PGM) were added to obtain a transparent metal salt bond-containing monomer solution (a21). The solid content of the obtained mixture solution of the metal salt bond-containing monomer solution (a21) was 44.8% by ...

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