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Anti-stain coating composition containing copper compound and having improved slime resistance and storage stability

A technology of antifouling coatings and compositions, applied in antifouling/underwater coatings, preservation of human or animal bodies, chemicals used for biological control, etc., can solve nozzle clogging, recrystallization, and coating properties of spray tanks Deterioration and other issues

Inactive Publication Date: 2010-09-22
CHUGOKU MARINE PAINTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] There is room for improvement in the mucus resistance of the existing antifouling coating compositions. In addition, if the amount of antifouling agent added to the coating is increased in order to improve the mucus resistance, recrystallization will occur during storage, which will easily lead to the deterioration of the coating. Deterioration of properties, problems such as clogging of nozzles of spray cans during painting operations, etc.

Method used

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  • Anti-stain coating composition containing copper compound and having improved slime resistance and storage stability
  • Anti-stain coating composition containing copper compound and having improved slime resistance and storage stability
  • Anti-stain coating composition containing copper compound and having improved slime resistance and storage stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0078] The measurement methods of various physical properties and the like in the following examples are as follows.

[0079]

[0080] Weigh 1 g of the prepared copolymer solution in a pan, and spread it evenly with a metal wire of known mass. After drying at 125° C. for 1 hour, the mass of the residue after solvent volatilization and the wire was measured, and the solid content ratio was obtained from the calculated heating residual content (that is, solid content).

[0081]

[0082] According to 4.3 of JIS K7233, the Gardner viscosity was measured at 25 degreeC after adjusting the solid content ratio of a reaction liquid to 35 weight%.

[0083]

[0084] By using "HLC-8210GPC" manufactured by Tosoh Corporation as the measurement device, using two pieces of "TSKgel α-M" manufactured by Tosoh Corporation as the separation column, and using dimethylformamide added with 20 mM LiBr as the eluent (DMF) GPC measures the number average molecular weight (Mn) and the weight aver...

manufacture example 1

[0092] [Manufacture Example 1] Manufacture of Copolymer A

[0093] 15 parts by weight of propylene glycol monomethyl ether, 57 parts by weight of xylene and 4 parts by weight of ethyl acrylate 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. Then, 37.8 parts by weight of the reaction liquid obtained by the preparation process of the preparation example 1: metal-containing monomer (a), 13 parts by weight of methyl methacrylate, 65 parts by weight of Parts of ethyl acrylate, 2.5 parts by weight of azobisisobutyronitrile (AIBN) (manufactured by Nippon Hydrazine Industry Co., Ltd.), 7 parts by weight of azobismethylbutyronitrile (AMBN) (manufactured by Nippon Hydrazine Industry Co., Ltd.) , a transparent mixture of 1 part by weight of a chain transfer agent "NOFMER MSD" (manufactured by NOF Corporation) and 10 parts by weight of xylene. After the dropwise addition...

manufacture example 2

[0097] [Production Example 2] Production of Copolymer B

[0098] 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. Then, from the dropping funnel, add 35 parts by weight of tertiary carbonic acid zinc methacrylate, 10 parts by weight of acrylate-2-methoxyethyl ester, 30 parts by weight of acrylate-3-methoxybutyl ester, 25 parts by weight of A mixture formed by parts by weight of ethyl acrylate and 6 parts by weight of tert-butyl peroxide. After the dropwise addition, 1 part by weight of tert-butyl peroctoate and 10 parts by weight of xylene as additional catalysts were dropped in 2 hours, and after stirring for 2 hours, 20 parts by weight of xylene was added to obtain a copolymer containing metal salt bonds. B's reaction solution. The solid content ratio of the reac...

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Abstract

Disclosed is an anti-stain coating composition which enables to form a stain-proof coating film that can impart excellent slime resistance, and in which the re-crystallization of an anti-stain agent in the coating can be prevented. The anti-stain coating composition is characterized by comprising a coating film-forming resin (A) and the following anti-stain agents (B) and (C): (B) an inorganic copper-containing anti-stain agent (e.g., copper suboxide); and (C) N,N'-dimethyl-N'-tolyl-(N-fluorodichloromethylthio)- sulfamide. The anti-stain agent (B) is preferably contained at a ratio of 60 to 1000 parts by weight relative to 100 parts by weight of the coating film-forming resin (A). The anti-stain agent (C) is preferably contained at a ratio of 1.4 to 80 parts by weight relative to 100 parts by weight of the coating film-forming resin (A). The anti-stain agent (C) is preferably contained at a ratio of 0.1 to 100 parts by weight relative to 100 parts by weight of the anti-stain agent (B).

Description

technical field [0001] The present invention relates to an antifouling coating composition containing an antifouling agent such as cuprous oxide, which is used to prevent substrate fouling caused by aquatic organisms, and uses of the antifouling coating composition. Background technique [0002] Currently, paints containing copper compounds such as cuprous oxide are widely used as ship bottom paints because of their excellent barnacle resistance and the like. However, when the operation rate of the ship is low or due to the conditions of the sea area, slime (slime, microbial film) such as diatoms will adhere, and the color of the bottom of the ship will easily turn light green. Discoloration is considered a major problem in most cases. [0003] Therefore, in addition to copper compounds such as cuprous oxide, organic antifouling agents such as N,N'-dimethyl-N' -Phenyl-(N-fluorodichloromethylthio)sulfonamide, 2,4,6-trichlorophenylmaleimide, 2,3,5,6-tetrachloro-4-(methylsulf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/00A01K75/00A01N25/04A01N37/32A01N43/36A01N43/40A01N43/80A01N47/04A01N55/02A01N59/20A01P3/00C09D5/16C09D7/12
CPCC09D5/1612C09D5/1668A01N59/20C09D5/1687A01N25/10A01N47/04A01N2300/00A01N55/02C09D5/16
Inventor 田中秀幸
Owner CHUGOKU MARINE PAINTS
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