Coating composition, antifouling coating film, underwater structure, and method of preventing fouling of underwater structure

A composition and structure technology, applied in botanical equipment and methods, rosin coatings, antifouling/underwater coatings, etc., can solve the problems of fast elution speed, inability to maintain antifouling performance for a long time, consumption, etc.

Inactive Publication Date: 2006-09-13
NKM COATINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] However, when triphenylboropyridines were mainly used as boron-based biofouling inhibitors, they could not maintain their antifouling properties for a long period of time
The reason is that although pyridyltriphenylboron is an effective physiologically active substance, due to its high affinity with seawater, the elution rate to seawater is fast, and it tends to be consumed from the coating film in a short time. Can't maintain its effect for a long time
Moreover, although it can be effective for a certain period of time on large attachments such as mussels, barnacles, Ryusuke, and moss, recent studies have also found that the physiological activity on slime is low.

Method used

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  • Coating composition, antifouling coating film, underwater structure, and method of preventing fouling of underwater structure
  • Coating composition, antifouling coating film, underwater structure, and method of preventing fouling of underwater structure
  • Coating composition, antifouling coating film, underwater structure, and method of preventing fouling of underwater structure

Examples

Experimental program
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manufacture example 1

[0181] A monomer mixture composed of 14 parts by weight of zinc acrylate, 26 parts by weight of zinc oleate acrylate, 15 parts by weight of methyl methacrylate, and 45 parts by weight of ethyl acrylate (the total of these copolymerizable monomers is 40 parts by weight), Dissolve (100 parts by weight in total) in a solvent (40 parts by weight of butyl acetate, 20 parts by weight of n-butanol), and perform a copolymerization reaction at 100° C. for 6 hours in the presence of a polymerization initiator AIBN , and the molecular weight (M w ) about 8000 of polymer solution 1 (solid content 40% by weight). Table 1 shows the monomer composition at the time of preparation of the polymer solution 1, the physical properties of the obtained polymer solution 1, and the like.

manufacture example 2～8

[0183] The polymer solutions shown in Table 1 were obtained in the same manner as in the above-mentioned polymer solution 1, except that the monomers for the polymer solution 1 were replaced with the raw materials having the monomer compositions shown in Table 1, respectively. The monomer composition and the like are shown in Table 1.

manufacture example 9

[0185] 8 g of zinc oxide and 5 g of butanol were added to a 50 wt % butyl acetate solution of a copolymer having a number-average molecular weight of 40,000 consisting of 7.2 parts by weight of acrylic acid, 50 parts by weight of methyl methacrylate, and 42.8 parts by weight of ethacrylic acid 1 g of water was added, and the mixture was reacted at 120° C. for 10 hours to obtain a transparent polymer solution 9 with a solid content of 49.2% by weight.

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Abstract

A coating composition which develops no coating film defects, such as peeling, in water with time, wears away at a constant rate, has excellent long-term antifouling properties, is applicable even to aluminum boats, and is highly safe environmentally; an antifouling coating film; an underwater structure with unsusceptibility to fouling; and an antifouling method. The coating composition is characterized by containing a copolymer comprising both of an ingredient A) represented by the following formula (1) and an ingredient B) derived from a polymerizable unsaturated metal salt compound represented by R5-(CH2)k-COO-M-Lq.

Description

technical field [0001] The present invention relates to a coating composition, an antifouling coating film, an underwater structure and an antifouling method for the underwater structure, in particular to a surface that can easily form an antifouling material that can prevent aquatic organisms on the surface of objects in contact with seawater or lake water. The coating composition of the adhered antifouling coating film, the antifouling coating film that can prevent the adhesion of aquatic organisms on the surface of the object in contact with seawater, lake water, etc. by using the above coating composition, by having the above antifouling coating Membrane, an antifouling underwater structure capable of effectively preventing the adhesion of aquatic organisms on surfaces in contact with seawater, lake water, etc., and an antifouling method capable of effectively preventing the adhesion of aquatic organisms. Background technique [0002] In the known technology, in order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D143/00C09D143/04C09D193/04C09D5/16A01K61/00A01K75/00A01N43/40A01N55/08A01N59/16B05D5/00B05D7/00B63B59/04E02B1/00A01N37/06A01N55/00A01N61/00B05D7/24C09D7/12
CPCC09D5/1637C09D5/1625A01N55/00B63B59/04A01N37/04A01N25/10A01N2300/00C09D5/16C09D143/00C09D143/04C09D193/04
Inventor 舛岡茂山下博史河村靖
Owner NKM COATINGS
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