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Antifouling coating composition, antifouling coating film formed from the composition, coated object having the coating film on surface, and method of antifouling treatment by forming the coating film

An antifouling paint and composition technology, applied in antifouling/underwater paints, coatings, paints containing biocides, etc. Excellent storability, reduced frictional resistance, and maintenance of antifouling properties

Inactive Publication Date: 2012-03-07
NITTO KASEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, these paints have the following problems: due to the moisture contained in the raw materials used to manufacture the paint, etc. or the water generated during the paint manufacturing process, the resin component is likely to be hydrolyzed during the paint preservation, causing paint damage. Viscosity increase, gelation, etc.
However, although the use of dehydrating agents has achieved certain effects, it cannot completely solve the problem, and problems such as increased viscosity and gelation may still occur during long-term storage
In addition, there is a problem of poor operating efficiency due to the need to pay attention to moisture in the handling of raw materials

Method used

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  • Antifouling coating composition, antifouling coating film formed from the composition, coated object having the coating film on surface, and method of antifouling treatment by forming the coating film
  • Antifouling coating composition, antifouling coating film formed from the composition, coated object having the coating film on surface, and method of antifouling treatment by forming the coating film
  • Antifouling coating composition, antifouling coating film formed from the composition, coated object having the coating film on surface, and method of antifouling treatment by forming the coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0150] The features of the present invention will be described more clearly below with reference to Examples and the like. However, the present invention is not limited to these Examples. In addition, in an Example, unless otherwise indicated, "part" means a "weight part". In addition, molecular weight (Mw) is the weight average molecular weight of polystyrene conversion calculated|required by GPC (gel permeation chromatography).

[0151] The conditions of GPC are as follows.

[0152] Device...HLC-8220GPC manufactured by Tosoh Corporation

[0153] Chromatographic column... TSKgel SuperHZM-M 2pcs

[0154] Flow rate...0.35mL / min

[0155] Detector...RI

[0156] Chromatographic column thermostat temperature...40℃

[0157] Eluent...THF

[0158] In addition, the heating residual part means the weight% with respect to the weight before heating after heating copolymer [A] at 125 degreeC for 1 hour.

manufacture example 1

[0159] Production example 1 (manufacture of copolymer [A-1])

[0160] Load 100 parts of solvent (xylene) into a reaction vessel with a thermometer, a reflux condenser, a stirrer and a dropping funnel, then heat to 110-115° C. under a nitrogen atmosphere, and add dropwise the mixture listed in Table 1 while stirring. 45 parts of monomer (1-1), 30 parts of methyl methacrylate (2-1), 25 parts of 2-methoxyethyl acrylate (2-4) and polymerization initiator azobisisobutyl A mixed solution of 0.9 parts of nitrile (1). After dropping, 0.5 part of azobisisobutyronitrile (2) was added to the obtained reaction liquid, and it stirred and reacted at 110 degreeC for 4 hours, and obtained the copolymer [A-1]. Table 2 shows the weight-average molecular weight (Mw) and heating residue of [A-1].

manufacture example 2～17

[0161] Production examples 2 to 17 (production of copolymers [A-2] to [A-17])

[0162] Using the monomers shown in Table 1 and below, the solvents and polymerization initiators shown in Table 2, polymerization was carried out in the same manner as in Production Example 1 to obtain copolymers [A-2] to [A-17] . Table 2 shows the Mw and heating residue of the obtained copolymer.

[0163] 2-1...Methyl methacrylate

[0164] 2-2...N-butyl acrylate

[0165] 2-3......Isobutyl methacrylate

[0166] 2-4...2-methoxyethyl acrylate

[0167] 2-5...2-methoxyethyl methacrylate

[0168] 3-1... Styrene

[0169] Table 1

[0170]

[0171]

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Abstract

The present invention provides an antifouling coating material which can be used to form an antifouling coating film excellent in long-term antifouling performance and physical properties, and which is excellent in long-term storage stability. The present invention provides an antifouling coating composition containing a copolymer [A] obtained by copolymerizing a monomer represented by a general formula (1) (wherein, X represents acryloyloxy, methacryloyloxy, crotonoyloxy, or isocrotonoyloxy, R1 represents a hydrogen atom or methyl, and R2 represents an alkyl group having a carbon number of 1 to 6), and a polymerizable monomer represented by a general formula (2) (wherein, R3 represents a hydrogen atom or methyl, R4 represents an alkyl group having a carbon number of 1 to 10, or an alkyl group having a carbon number of 2 to 5 to which an alkoxy group having a carbon number of 1 to 4 is bonded.).

Description

technical field [0001] The present invention relates to an antifouling paint composition for long-term prevention of attachment of aquatic fouling organisms to seawater used or present in seawater, such as ships, fishing nets, buoys, cooling water pipes of power stations, etc. An antifouling coating film formed from the composition, a coated object having the coating film on its surface, and an antifouling treatment method by forming the coating film. Background technique [0002] Aquatic-fouling organisms such as barnacles, cochinella, blue myssels, bryozoans, sea squirts, Enteromorpha enterica, Ulva, bioslime, etc. are known to attach to ships (especially the bottom of ships), fishing nets, fishing nets Fittings and other fishing equipment, power station water pipes and other water structures, resulting in reduced ship speed, reduced water flow, etc., resulting in significant economic and resource losses. Therefore, in order to prevent the attachment of aquatic fouling or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/16C09D7/12
CPCC09D5/1668C09D133/14C09D5/16C09D133/04
Inventor 岩本刚安井拓也北村同藤本贵义
Owner NITTO KASEI CO LTD
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