WO2023120360A1 - 漁網防汚塗料組成物、該組成物を用いて形成される防汚塗膜を表面に有する漁網、漁網用具又は水中構造物 - Google Patents
漁網防汚塗料組成物、該組成物を用いて形成される防汚塗膜を表面に有する漁網、漁網用具又は水中構造物 Download PDFInfo
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- WO2023120360A1 WO2023120360A1 PCT/JP2022/046178 JP2022046178W WO2023120360A1 WO 2023120360 A1 WO2023120360 A1 WO 2023120360A1 JP 2022046178 W JP2022046178 W JP 2022046178W WO 2023120360 A1 WO2023120360 A1 WO 2023120360A1
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- monomer
- meth
- acrylate
- fishing net
- antifouling
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
- C09D191/06—Waxes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Definitions
- the present invention is intended to prevent aquatic fouling organisms from adhering to fishing nets for aquaculture or set nets, fishing net tools such as floats and ropes used in these, and underwater structures such as cooling water pipes in power plants over a long period of time. It relates to a fishing net antifouling coating composition for antifouling, and a fishing net, fishing net tool or underwater structure having an antifouling coating film formed using the composition on its surface.
- fishing nets, fishing net tools, and underwater structures are installed in the sea for a long period of time, if they are used without being treated with antifouling paint for fishing nets, they may damage green algae such as sea lettuce and green laver, red algae such as gisu, and barnacles.
- Various aquatic fouling organisms such as crustaceans such as crustaceans, coelenterates such as hydra worms, serpra, bryozoans, and mollusks adhere. As a result, the mesh of the fishing nets is blocked and the seawater flow becomes poor, and a large number of farmed fish die due to lack of oxygen, and infectious diseases occur, making it impossible to ship them.
- an antifouling coating composition for fishing nets using an organic tin compound has been widely used in the past, but it has become unusable due to environmental considerations.
- antifouling coating compositions for fishing nets to replace organic tin compounds
- inorganic compounds and organic compounds are used as antifouling agents, which are blended with natural resin-based or synthetic resin-based spreading resins.
- antifouling coating compositions for fishing nets have been used. However, these had problems such as poor physical properties of the coating film and a short antifouling period.
- an antifouling paint composition for fishing nets in which a specific polyether-modified silicone oil is blended with a spreading resin as a drug elution control agent, has been proposed (Patent Documents 1 to 3).
- the present invention has been made in view of the above circumstances, and maintains an appropriate amount of drug release from the initial stage of immersion in water, maintains an antifouling effect for a long period of time, and is excellent in antifouling against organisms attached to fishing nets.
- An object of the present invention is to provide an antifouling coating composition for fishing nets that can continuously exhibit its performance for a long period of time.
- an antifouling coating composition containing a copolymer (A), a silicone oil (B), and an antifouling agent (C), wherein the copolymer (A) has the general formula ( 1) and a copolymer of an ethylenically unsaturated monomer (b) other than the monomer (a), wherein the monomer (a) is the A fishing net antifouling paint containing a compound in which n in the general formula (1) is 2 or more, and wherein the silicone oil (B) is a modified silicone oil having a hydrophilic-lipophilic balance (HLB value) of 0.5 to 9.
- a composition is provided.
- a fishing net, a fishing net tool, or an underwater structure having on its surface an antifouling coating film formed using the fishing net antifouling coating composition is also provided.
- Fishing net antifouling paint composition contains copolymer A, silicone oil B and antifouling agent C.
- Copolymer A is a copolymer of a monomer (a) and an ethylenically unsaturated monomer (b) other than the monomer (a), and the monomer (a) and the monomer Including monomeric units derived from mer (b).
- the content of the monomer (a) with respect to the sum of the monomer (a) and the monomer (b) is preferably 5 to 90% by mass, more preferably 5 to 70% by mass, and 5 to 60% by mass. More preferably, 5 to 40% by mass is particularly preferable.
- Monomer (a) is represented by general formula (1).
- R 1 represents hydrogen or a methyl group
- R 2 represents hydrogen, a methyl group, or a phenyl group
- R 3 may be substituted with an alkoxy group having 1 to 8 carbon atoms or a phenyl group. It is an alkyl group having 1 to 8 carbon atoms or represents a phenyl group
- n represents an integer of 1 to 10.
- R 2 is preferably hydrogen or a methyl group.
- the number of carbon atoms in the alkoxy group or alkyl group of R 3 is, for example, 1, 2, 3, 4, 5, 6, 7, or 8, and within the range between any two of the numerical values exemplified here good too.
- R 3 is, for example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, t-butyl group, 2-ethylhexyl group, cyclohexyl group, benzyl group, phenyl group, 2-methoxyethyl group, 4-methoxybutyl group, vinyl group or allyl group, preferably methyl group, ethyl group, isopropyl group or n-butyl group.
- n represents an integer of 1 to 10
- n is, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, any two of the numerical values exemplified here may be within the range.
- the monomer (a) includes compounds in which n in general formula (1) is 2 or more. When a compound in which n is 2 or more is contained as the monomer (a), the long-term antifouling property is enhanced.
- the monomer (a) may be composed only of a compound in which n is 2 or more, or may be a mixture of a compound in which n is 1 and a compound in which n is 2 or more.
- the monomer (a) preferably consists of a monomer (a1) and a monomer (a2).
- the content of monomer (a1) in monomer (a) is preferably 50 to 80% by mass, more preferably 55 to 75% by mass, and particularly preferably 60 to 70% by mass.
- the monomer (a1) tends to increase the strength of the coating film and reduce the long-term antifouling property compared to the monomer (a2). Therefore, if the content of the monomer (a1) is too small, the strength of the coating film tends to be low, and the surface condition of the coating film tends to deteriorate after a long period of time. On the other hand, if the content of the monomer (a1) is too high, the long-term antifouling performance may deteriorate.
- Monomer (a1) is a compound in which n is 1 in general formula (1).
- Examples of the monomer (a1) include methoxycarbonylmethyl (meth)acrylate, ethoxycarbonylmethyl (meth)acrylate, isopropoxycarbonylmethyl (meth)acrylate, n-propoxycarbonylmethyl (meth)acrylate, n-butoxycarbonylmethyl (meth)acrylate, t-butoxycarbonylmethyl (meth)acrylate, 2-ethylhexyloxycarbonylmethyl (meth)acrylate, cyclohexyloxycarbonylmethyl (meth)acrylate, benzyl (meth)acrylate Oxycarbonylmethyl, phenoxycarbonylmethyl (meth)acrylate, 2-methoxyethoxycarbonylmethyl (meth)acrylate, 4-methoxybutoxycarbonylmethyl (meth)acrylate, allyloxycarbonylmethyl (meth)acrylate, (meth)
- the monomer (a2) is a compound of general formula (1) in which n is 2 or more.
- n in formula (1) is preferably 2 to 6 from the viewpoint of long-term antifouling properties.
- the monomer (a2) preferably contains both a compound in which n is 2 and a compound in which n is 3 or more.
- the mass ratio (n(2)/n(2-10)) in terms of solid content is preferably 0.4 to 0.8, more preferably 0.5 to 0.7.
- this value is, for example, 0.40, 0.45, 0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 0.80, where It may be in a range between any two of the numerical values given.
- Examples of the monomer (a2) include methyl (meth)acrylate di(oxycarbonylmethyl), ethyl (meth)acrylate di(oxycarbonylmethyl), isopropyl(meth)acrylate di(oxycarbonylmethyl), (meth)acrylate ) n-propyl di(oxycarbonylmethyl) acrylate, n-butyl di(oxycarbonylmethyl) acrylate (meth), t-butyl di(oxycarbonylmethyl) acrylate (meth), 2-ethylhexyl di(meth) acrylate ( oxycarbonylmethyl), cyclohexyl di(oxycarbonylmethyl) (meth)acrylate, benzyl di(oxycarbonylmethyl) (meth)acrylate, phenyl di(oxycarbonylmethyl) (meth)acrylate, 2-methoxy (meth)acrylate Ethyl di (oxycarbonylmethyl), 4-methoxybutyl di (oxycarbonylmethyl) (
- monomer (b) is an ethylenically unsaturated monomer other than monomer (a).
- the monomer (b) can be classified into a monomer (b1) and a monomer (b2). ) and the monomer (b2), preferably the monomer (b1).
- the content of the monomer (b1) in the copolymer A is preferably 1-30% by mass, more preferably 2-25% by mass, still more preferably 3-20% by mass.
- the coating film formed using the obtained coating composition has improved compatibility with the silicone oil that controls the elution of the drug, and as a result, there is an advantage that an appropriate amount of drug can be eluted.
- the content of the monomer (b1) is, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30% by mass, even within the range between any two of the numerical values illustrated here good.
- the monomer (b1) is represented by general formula (2).
- R 4 represents hydrogen or a methyl group
- R 5 represents an alkyl group having 10 to 22 carbon atoms
- R5 examples include decyl, isodecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and the like.
- the carbon number of R 5 is preferably 12-18. Specifically, the carbon number of R 5 is, for example, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, and any one of the numerical values exemplified here is 2 It may be within a range between two.
- Examples of the monomer (b1) include decyl (meth)acrylate, isodecyl (meth)acrylate, dodecyl (lauryl) (meth)acrylate, tridecyl (meth)acrylate, and tetradecyl (myristyl (meth)acrylate). ), pentadecyl (meth)acrylate, hexadecyl (palmityl) (meth)acrylate, heptadecyl (margaryl) (meth)acrylate, octadecyl (stearyl) (meth)acrylate, nonadecyl (meth)acrylate, and the like.
- the monomer (b1) can be used singly or in combination of two or more.
- Examples of the monomer (b2) include ethylenically unsaturated monomers other than the monomer (a) and the monomer (b1), such as methyl (meth)acrylate and ethyl (meth)acrylate.
- n-butyl (meth)acrylate isobutyl (meth)acrylate, t-butyl (meth)acrylate, isopentyl (meth)acrylate, hexyl (meth)acrylate, cyclohexyl (meth)acrylate, (meth)acrylate 2-ethylhexyl acrylate, 2-methoxyethyl (meth)acrylate, 2-methoxypropyl (meth)acrylate, 4-methoxybutyl (meth)acrylate, 2-ethoxyethyl (meth)acrylate, (meth)acrylic acid (Meth)acrylic acid esters such as 2-hydroxyethyl acid, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 2-ethoxy-diethylene glycol (meth)acrylate; vinyl chloride, vinylidene chloride , (meth)acrylonitrile, vinyl acetate, butyl vinyl ether,
- (meth)acrylic acid esters are particularly preferable, and methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, isopentyl (meth)acrylate, Hexyl (meth)acrylate, cyclohexyl (meth)acrylate, 2-methoxyethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, (meth)acrylic acid 2 -hydroxybutyl, 2-ethoxy-diethylene glycol (meth)acrylate are more preferred.
- the monomer (b2) can be used singly or in combination of two or more.
- the weight average molecular weight (Mw) of copolymer A is preferably 10,000 to 500,000, more preferably 80,000 to 300,000. If the molecular weight is less than 10,000, the coating film of the antifouling paint will be brittle and easily peeled off or cracked. Specifically, this Mw is, for example, 10000, 20000, 30000, 40000, 50000, 60000, 70000, 80000, 90000, 100000, 200000, 300000, 400000, 500000. It may be in the range between. Examples of methods for measuring Mw include gel permeation chromatography (GPC method).
- the glass transition temperature (Tg) of the copolymer A is preferably about -50 to 50°C, more preferably about -35 to 35°C.
- Tg glass transition temperature
- the above Tg value refers to a value actually measured using a differential scanning calorimeter (eg, DSC1 manufactured by METTLER TOLEDO) with reference to the measurement method of JIS K 7121.
- Copolymer A is a random copolymer, alternating copolymer, periodic copolymer, or block copolymer of monomer (a) and monomer (b).
- Copolymer A can be obtained, for example, by polymerizing monomer (a) and monomer (b) in the presence of a polymerization initiator.
- polymerization initiator examples include 2,2′-azobisisobutyronitrile, 2,2′-azobis(2-methylbutyronitrile), 2,2′-azobis(2,4-dimethylvaleronitrile ), dimethyl-2,2′-azobisisobutyrate, dimethyl 2,2′-azobisisobutyrate, 2,2′-azobis (N-butyl-2-methylpropionamide and other azo compounds; benzoylper oxide, di-tert-butylperoxide, tert-butylperoxybenzoate, tert-butylperoxyisopropylcarbonate, t-butylperoxy-2-ethylhexanoate, t-hexylperoxy-2-ethylhexanoate , di-t-hexyl peroxide, t-butyl peroxy-2-ethylhexyl monocarbonate, di-t-butyl peroxide, 1,1,3,3-tetra
- polymerization initiators can be used alone or in combination of two or more.
- -methylbutyronitrile 2,2′-azobis(2,4-dimethylvaleronitrile), dimethyl 2,2′-azobisisobutyrate and 1,1,3,3-tetramethylbutylperoxy-2 - Ethylhexanoate is preferred.
- the molecular weight of the copolymer A can be adjusted.
- a chain transfer agent is used to adjust the molecular weight of the resulting polymer.
- Chain transfer agents include, for example, mercaptans such as n-dodecylmercaptan, thioglycolic acid esters such as octyl thioglycolate, ⁇ -methylstyrene dimer, and terpinolene.
- polymerization methods include solution polymerization, bulk polymerization, emulsion polymerization, suspension polymerization, and non-aqueous dispersion polymerization.
- solution polymerization or non-aqueous dispersion polymerization is particularly preferable in that the copolymer A can be obtained easily and accurately.
- an organic solvent may be used as necessary.
- the organic solvent is not particularly limited, but for example, aromatic hydrocarbon solvents such as xylene and toluene; aliphatic hydrocarbon solvents; ethyl acetate, butyl acetate, isobutyl acetate, methoxypropyl acetate, propylene glycol 1-monomethyl ether.
- ester solvents such as 2-acetate; alcohol solvents such as isopropyl alcohol, butyl alcohol and propylene glycol monomethyl ether; ether solvents such as dioxane, diethyl ether and dibutyl ether; ketone solvents such as methyl ethyl ketone and methyl isobutyl ketone. mentioned. Among them, butyl acetate, isobutyl acetate, butyl alcohol, propylene glycol monomethyl ether, propylene glycol 1-monomethyl ether 2-acetate, toluene and xylene are preferred. These solvents can be used alone or in combination of two or more.
- the reaction temperature in the polymerization reaction may be appropriately set according to the type of polymerization initiator, etc., and is usually 50 to 160°C, preferably 60 to 150°C.
- the polymerization reaction is preferably carried out in an inert gas atmosphere such as nitrogen gas or argon gas.
- the content of copolymer A in the fishing net antifouling paint composition is not particularly limited, but is 3 to 50% by mass, preferably 5 to 30% by mass in terms of solid content.
- Silicone oil B is a modified silicone oil having a hydrophilic-lipophilic balance (HLB value) of 0.5-9.
- modified silicone oil include polyether-modified polydimethylsiloxane, polyether-modified polyalkyl(methyl)siloxane, polyester-modified polydimethylsiloxane, polyether long-chain alkylaralkyl-modified dimethylsilicone oil, amino-modified silicone oil, and various others.
- Functional group-modified silicone oils and the like can be mentioned, and polyether-modified polydimethylsiloxane or polyether long-chain alkylaralkyl-modified dimethylsilicone oil is preferable.
- these modified silicone oils may be used alone, or two or more of them may be used in combination.
- the HLB value is preferably 1-5. Specifically, HLB values are, for example, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0 and within the range between any two of the numerical values exemplified herein. may
- the HLB value can be calculated by the Griffin method. In Griffin's method, the HLB value is defined as 20 ⁇ (sum of molecular weights of hydrophilic portions/total molecular weight).
- the viscosity of silicone oil B is preferably 1000 poise or less, more preferably 100 poise or less, and even more preferably 10 poise or less, from the viewpoint of coating performance and coating film properties.
- the content of silicone oil B is not particularly limited. ⁇ 50 parts by mass.
- the antifouling coating composition for fishing nets may contain only silicone oil B, or may contain other silicone oils in addition to silicone oil B.
- silicone oils include polydimethylsiloxane, polymethylphenylsiloxane, methylphenylsiloxane-dimethylsiloxane copolymer, fluorosilicone oil, long-chain alkyl-modified polydimethylsiloxane, aralkyl-modified polydimethylsiloxane, and the like.
- the antifouling agent C used in the present invention is not particularly limited as long as it is a compound having a killing or repelling effect on marine fouling organisms.
- examples include the following organic compounds and inorganic compounds.
- organic compounds include 2-mercaptopyridine N-oxide copper, 2-mercaptopyridine N-oxide zinc, zinc ethylene bisdithiocarbamate, bis(dimethyldithiocarbamate) zinc, bisdimethyldithiocarbamoyl zinc ethylene bisdithiocarbamate, pyridine. ⁇ Triphenylborane, n-octadecylamine ⁇ Triphenylborane, 3-(2-ethylhexyloxy)propylamine ⁇ Triphenylborane, 4-isopropyl-diphenylmethyl, 4-phenylpyridyl-diphenylborane, 2,4,6- trichloromaleimide, n-(2,6-
- inorganic compounds include cuprous oxide, monovalent copper glass, divalent copper glass, copper thiocyanate, cupronickel, copper powder, etc. Cuprous oxide, monovalent copper glass and divalent Copper glass is particularly preferred, and may be used singly or in combination of two or more.
- the solvent or water-insoluble antifouling agent preferably has an average particle size of 10 ⁇ m or less, particularly preferably 3 ⁇ m or less, from the viewpoint of dispersibility.
- average particle diameters can be measured with a particle size distribution meter manufactured by Nikkiso Co., Ltd., model Microtrac MT3300EXII (measurement principle: laser diffraction/scattering method).
- the content of the antifouling agent C in the coating composition of the present invention is not limited, it is usually 1 to 300 parts by mass, preferably 5 to 200 parts by mass, based on 100 parts by mass of the copolymer A. If the amount of the antifouling agent used is less than 1 part by mass, the antifouling property is not sufficient, while if it exceeds 300 parts by mass, the coating performance and physical properties of the coating film tend to deteriorate.
- the coating composition used in the present invention includes other elution modifiers, dispersants, other spreading resins, anti-settling agents, anti-sagging agents, plasticizers, surfactants, antifoaming agents, dyes, Pigments, organic solvents, water, and the like can be arbitrarily contained in arbitrary blending ratios within a range that does not impair the object of the present invention.
- ⁇ Other elution modifiers> (Ethylene/ ⁇ -olefin copolymer)
- Examples of the ethylene/ ⁇ -olefin copolymer include general formula (3): (Wherein, R 6 represents a linear or branched alkyl group having 1 to 10 carbon atoms, and x, y and p are each the same or different and represent an integer of 1 or more). Examples include ⁇ -olefin copolymers.
- the linear or branched alkyl group having 1 to 10 carbon atoms represented by R 6 particularly includes 1 carbon atom groups such as methyl group, ethyl group, propyl group, isopropyl group, butyl group and isobutyl group.
- An alkyl group of ⁇ 4 is preferred, and a methyl group is more preferred.
- the ethylene/ ⁇ -olefin copolymer represented by the general formula (3) is a copolymer obtained by copolymerizing ethylene and an ⁇ -olefin.
- the ethylene/ ⁇ -olefin copolymer may be a random copolymer, a block copolymer or a graft copolymer.
- a commercially available product can be used as the ethylene/ ⁇ -olefin copolymer.
- Commercially available products include, for example, Lucant HC-10, Lucant HC-20, Lucant HC-40, Lucant HC-100, Lucant HC-150, Lucant HC-600, Lucant HC-2000 (all registered trademarks, Mitsui Chemicals, Inc.
- the number average molecular weight (Mn) of the ethylene/ ⁇ -olefin copolymer is preferably 10,000 or less, more preferably 1,000 to 3,000, from the viewpoint of coating performance and coating film properties.
- the ethylene/ ⁇ -olefin copolymer preferably has a viscosity at 0° C. of 20,000 Pa ⁇ s or less, more preferably 500 Pa ⁇ s or less.
- the content of the ethylene/ ⁇ -olefin copolymer is not particularly limited, but is 1 to 1,000 parts by mass, preferably 1 to 500 parts by mass, in terms of solid content, with respect to 100 parts by mass of the silicone oil. More preferably, it is 50 to 300 parts by mass.
- Polybutenes include polybutene, polyisobutene, and the like.
- a commercial item can be used as polybutenes.
- Examples of commercial products include Nisseki polybutene grade LV-7, Nisseki polybutene grade LV-50, Nisseki polybutene grade LV-100, Nisseki polybutene grade HV-35, Nisseki polybutene grade HV-50, and Nisseki polybutene.
- polybutene is not particularly limited, it is 1 to 1000 parts by mass, preferably 1 to 500 parts by mass, more preferably 50 to 300 parts by mass in terms of solid content per 100 parts by mass of silicone oil. is.
- paraffins examples include n-paraffin, liquid paraffin, chlorinated paraffin and the like.
- the content of paraffins is not particularly limited, but is 1 to 1000 parts by mass, preferably 1 to 500 parts by mass, more preferably 50 to 300 parts by mass based on 100 parts by mass of silicone oil in terms of solid content. is.
- waxes for example, petroleum-based waxes such as microcrystalline wax and paraffin wax, Synthetic waxes such as polyethylene wax and polypropylene wax, plant waxes, animal waxes, and the like can be used.
- the content of the wax is not particularly limited, but is 1 to 1000 parts by mass, preferably 1 to 500 parts by mass, more preferably 50 to 300 parts by mass based on 100 parts by mass of silicone oil in terms of solid content. is.
- petrolatums examples include white petrolatum and yellow petrolatum.
- the content of petroleum jelly is not particularly limited, but is 1 to 1000 parts by mass, preferably 1 to 500 parts by mass, more preferably 50 to 300 parts by mass based on 100 parts by mass of silicone oil in terms of solid content. is.
- Dialkylsulfide compounds include di-tert-butyldesulfide, dipentyltetrasulfide, dipentylpentasulfide, dipentyldecasulfide, dioctyltetrasulfide, dioctylpentasulfide, dinonyltetrasulfide, dinonylpentasulfide, and di-tert-nonyltetrasulfide.
- the content of the dialkyl sulfide compound is not particularly limited, but is 1 to 1000 parts by mass, preferably 1 to 500 parts by mass, more preferably 50 to 300 parts by mass based on 100 parts by mass of silicone oil in terms of solid content. Department.
- Dispersants include polyamide phosphoric acid-based dispersants, polyamide-based dispersants, unsaturated polycarboxylic acid-based dispersants, and polyethylene oxide-based dispersants. Examples thereof include Disparlon 6900-20X, Disparlon 4200 and Disparlon 1860 manufactured by Kusumoto Kasei Co., Ltd. These dispersants can be used alone or in combination of two or more.
- the content of the dispersant is not particularly limited, but is 0.01 to 50 parts by mass, preferably 0.1 to 40 parts by mass, more preferably 0.1 to 40 parts by mass, based on 100 parts by mass of the antifouling agent in terms of solid content. is 0.5 to 30 parts by mass.
- a spreading resin other than the copolymer A can be contained in an arbitrary blending ratio that does not interfere with the effects of the present invention.
- the spreading resin include vinyl resins, alkyd resins, urethane resins, polyester resins, synthetic rubbers, synthetic resins such as chlorinated polyethylene, and natural resins such as wood rosin, gum rosin, and modified rosin.
- Plasticizers examples include phthalates, adipates, and tricresyl phosphate.
- Water or Organic Solvent It is usually preferable to dissolve or disperse the composition of the present invention in water or an organic solvent. Thereby, it can be suitably used as a paint.
- organic solvents examples include aromatic solvents such as xylene, toluene, Solvesso 100 and Solvesso 150 (both registered trademarks, manufactured by ExxonMobil); ketone solvents such as isobutyl methyl ketone (MIBK) and diisobutyl ketone (DIBK). ; Ester solvents such as butyl acetate, isobutyl acetate and isopentyl acetate can be used.
- aromatic solvents such as xylene, toluene, Solvesso 100 and Solvesso 150 (both registered trademarks, manufactured by ExxonMobil)
- ketone solvents such as isobutyl methyl ketone (MIBK) and diisobutyl ketone (DIBK).
- Ester solvents such as butyl acetate, isobutyl acetate and isopentyl acetate can be used.
- organic solvents with low toxicity, low odor, and low environmental load can also be used.
- aromatic/alicyclic/aliphatic hydrocarbon mixed solvents propylene glycol monomethyl ether acetate, glycol ester solvents such as propylene glycol monoethyl ether acetate; ethylcyclohexane, dimethylcyclohexane, Likasolve (registered trademark) 900 (C9 aromatic hydrogenated), alicyclic hydrocarbon solvents such as Likasolve (registered trademark) 1000 (C10 aromatic hydrogenated); Shellsol D40 (registered trademark, manufactured by Shell Chemicals), Exsol D30, Exsol D40 Alicyclic and aliphatic hydrocarbon mixed solvents such as (registered trademark, manufactured by ExxonMobil); and aliphatic hydrocarbon mixed solvents such as Isopar G and Isopar H (both registered trademarks, manufactured by ExxonMobil) can.
- These organic solvents can be used alone or in combination of
- composition of the present invention can be used to form antifouling coating films for various fishing tools, underwater structures, and the like.
- the composition of the present invention can be suitably used as an antifouling coating composition for fishing nets.
- the antifouling coating composition for fishing nets of the present invention can be prepared by mixing the above components A to C and, if necessary, the above components.
- the amount of each component to be added at the time of mixing may be appropriately adjusted so as to achieve the above blending amount and content.
- a known method such as mixing using a stirring device may be adopted.
- the method for forming a fishing net antifouling coating film of the present invention comprises applying the above fishing net antifouling coating composition to the surface of a coating film forming object. It is characterized by forming a coating film.
- the antifouling coating film obtained by the forming method of the present invention can prevent attachment of aquatic fouling organisms by gradually releasing the antifouling agent from the surface.
- coated film-forming objects examples include underwater objects placed in seawater.
- An underwater object is not an object that moves at high speed like a ship, but an object that moves little or not at all in seawater.
- objects placed in water examples include fishing tools and underwater structures.
- fishing tools include fishing nets for aquaculture or stationary use, and fishing net tools such as floats and ropes used for the fishing nets.
- Underwater structures include, for example, power plant water pipes, bridges, harbor facilities, and the like.
- the fishing net antifouling coating film of the present invention can be formed by applying the fishing net antifouling coating composition to the surface (entirely or partially) of a coating film forming object.
- Application methods include, for example, a brush coating method, a spray method, a dipping method, a flow coating method, a spin coating method, and the like. These may be used singly or in combination of two or more.
- a dipping method as the coating method.
- the drying temperature may be room temperature.
- the drying time may be appropriately set according to the adhesion amount of the fishing net antifouling paint.
- the adhesion amount of the fishing net antifouling paint may be appropriately set according to the type of the object to be coated and the like.
- the amount of the dry coating film deposited is preferably 1 to 30 parts by weight, more preferably 4 to 15 parts by weight, per 100 parts by weight of the fishing net.
- the coated article of the present invention has the antifouling coating film on its surface.
- the coated article of the present invention may have the antifouling coating film on the entire surface or on a part of the surface.
- % in each Production Example, Example and Comparative Example indicates % by mass.
- the weight average molecular weight (Mw) is a value (polystyrene conversion value) determined by GPC.
- the conditions for GPC are as follows.
- HLC-8220GPC manufactured by Tosoh Corporation
- the heating residue is a value measured in accordance with JIS K 5601-1-2:1999 (ISO 3251:1993) "Coating component test method-heating residue".
- Production Example 1-1 Production Example of Monomer (a1) ⁇ Production Example 1 (Production of Monomer a1-1)> In a four-necked flask equipped with a thermometer, a condenser, a stirrer and a dropping funnel, methyl chloroacetate: 109 g (1.00 mol), acrylic acid: 72 g (1.00 mol), 4-methoxyphenol: 0.1 g, Ethyl acetate: 500 g was charged, and triethylamine: 101 g (1.00 mol) was added dropwise while stirring while maintaining the temperature at 40°C or lower. After the dropwise addition was completed, the mixture was stirred at 70 to 80°C for 6 hours.
- 2-methoxyethyl methacrylate trade name “Acryester MT” (Mitsubishi Chemical ( Co., Ltd.) 2-hydroxyethyl methacrylate: manufactured by Tokyo Kasei Co., Ltd.
- xylene trade name “xylene” (manufactured by Mitsui Chemicals, Inc.) 1-butanol: manufactured by Tokyo Kasei Co., Ltd. Butyl acetate: manufactured by Tokyo Kasei Co., Ltd.
- DAF-1 di-tert-nonyl pentasulfide (manufactured by DIC Corporation) Cuprous oxide: trade name “NC-301” (manufactured by Nisshin Chemco Co., Ltd.) Copper pyrithione: trade name “Copper Omadine Powder”: bis(2-sulfidepyridine-1-orato) copper (manufactured by Lonza Japan Co., Ltd.)
- TOC-3204F Zinc bis(dimethyldithiocarbamoyl)ethylenebisdithiocarbamate (manufactured by Nutrition & Bioscience Co., Ltd.) 3-(2-ethylhexyloxy)propylamine/triphenylborane: trade name “OPA” (manufactured by Nitto Kasei Co., Ltd.) n-octadecylamine/triphenylborane: trade name “ODA” (manufactured by Beni
- Example 1 Anti-fouling effect confirmation test for animal fouling organisms
- Examples H-1 to H-17, I-1 to I-14, J-1 to J-14, Comparative Examples CH-1 to CH-3, CI-1 to CI-3 described in Tables 4 to 6 , CJ-1 to CJ-3 were dip-coated on polyethylene fishing nets (400 denier, 50 nets, 8 nodes, 15 cm long and 8 cm wide) and dried at room temperature for 2 days.
- a fishing net coated with the obtained antifouling coating composition was fixed to a SUS frame of 40 ⁇ 75 cm and immersed in water to a depth of about 2 m from the sea. observable.
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Abstract
Description
本発明の漁網防汚塗料組成物は、共重合体A、シリコーンオイルBおよび防汚薬剤Cを含有する。
共重合体Aは、単量体(a)と、単量体(a)以外のエチレン性不飽和単量体単量体(b)の共重合体であり、単量体(a)及び単量体(b)に由来する単量体単位を含む。単量体(a)と単量体(b)の合計に対する単量体(a)の含有量は、5~90質量%が好ましく、5~70質量%が更に好ましく、5~60質量%が更に好ましく、5~40質量%が特に好ましい。具体的には例えば、5、8、10、15、20、25、30、35、40、45、50、55、60、65、70、75、80、85、90質量%であり、ここで例示した数値の何れか2つの間の範囲内であってもよい。この場合に、長期防汚性が特に良好となる。
単量体(a)は、一般式(1)で表される。
単量体(a1)は、一般式(1)のnが1である化合物である。
単量体(a1)としては、例えば、(メタ)アクリル酸メトキシカルボニルメチル、(メタ)アクリル酸エトキシカルボニルメチル、(メタ)アクリル酸イソプロポキシカルボニルメチル、(メタ)アクリル酸n-プロポキシカルボニルメチル、(メタ)アクリル酸n-ブトキシカルボニルメチル、(メタ)アクリル酸t-ブトキシカルボニルメチル、(メタ)アクリル酸2-エチルヘキシルオキシカルボニルメチル、(メタ)アクリル酸シクロヘキシルオキシカルボニルメチル、(メタ)アクリル酸ベンジルオキシカルボニルメチル、(メタ)アクリル酸フェノキシカルボニルメチル、(メタ)アクリル酸2-メトキシエトキシカルボニルメチル、(メタ)アクリル酸4-メトキシブトキシカルボニルメチル、(メタ)アクリル酸アリロキシカルボニルメチル、(メタ)アクリル酸ビニロキシカルボニルメチル、(メタ)アクリル酸1-(メトキシカルボニル)エチル、(メタ)アクリル酸1-(エトキシカルボニル)エチル、(メタ)アクリル酸1-(n-プロポキシカルボニル)エチル、(メタ)アクリル酸1-(イソプロポキシカルボニル)エチル、(メタ)アクリル酸1-(n-ブトキシカルボニル)エチル、(メタ)アクリル酸1-(t-ブトキシカルボニル)エチル、(メタ)アクリル酸α-(メトキシカルボニル)ベンジル、(メタ)アクリル酸α-(エトキシカルボニル)ベンジルが挙げられ、好ましくは、(メタ)アクリル酸メトキシカルボニルメチル、(メタ)アクリル酸エトキシカルボニルメチル、(メタ)アクリル酸イソプロポキシカルボニルメチル、(メタ)アクリル酸n-プロポキシカルボニルメチル、(メタ)アクリル酸n-ブトキシカルボニルメチル、(メタ)アクリル酸1-(メトキシカルボニル)エチル、(メタ)アクリル酸1-(エトキシカルボニル)エチルが挙げられる。
単量体(a2)は、一般式(1)のnが2以上である化合物である。一般式(1)のnは、長期防汚性の観点から2~6が好ましい。
単量体(b)は、単量体(a)以外のエチレン性不飽和単量体である。単量体(b)は、単量体(b1)と単量体(b2)に分類することができ、共重合体Aの重合に用いる単量体(b)には、単量体(b1)と単量体(b2)の一方又は両方が含まれ、単量体(b1)が含まれることが好ましい。
単量体(b1)は、一般式(2)で表される。
単量体(b2)としては、単量体(a)および単量体(b1)以外のエチレン性不飽和単量体が挙げられ、例えば、(メタ)アクリル酸メチル、(メタ)アクリル酸エチル、(メタ)アクリル酸n-ブチル、(メタ)アクリル酸イソブチル、(メタ)アクリル酸t-ブチル、(メタ)アクリル酸イソペンチル、(メタ)アクリル酸ヘキシル、(メタ)アクリル酸シクロヘキシル、(メタ)アクリル酸2-エチルヘキシル、(メタ)アクリル酸2-メトキシエチル、(メタ)アクリル酸2-メトキシプロピル、(メタ)アクリル酸4-メトキシブチル、(メタ)アクリル酸2-エトキシエチル、(メタ)アクリル酸2-ヒドロキシエチル、(メタ)アクリル酸2-ヒドロキシプロピル、(メタ)アクリル酸2-ヒドロキシブチル、(メタ)アクリル酸2-エトキシ-ジエチレングリコール等の(メタ)アクリル酸エステル;塩化ビニル、塩化ビニリデン、(メタ)アクリロニトリル、酢酸ビニル、ブチルビニルエーテル、ラウリルビニルエーテル、N-ビニルピロリドン等のビニル化合物;スチレン、ビニルトルエン、α-メチルスチレン等の芳香族化合物等が挙げられる。この中でも特に、(メタ)アクリル酸エステルが好ましく、(メタ)アクリル酸メチル、(メタ)アクリル酸エチル、(メタ)アクリル酸n-ブチル、(メタ)アクリル酸イソブチル、(メタ)アクリル酸イソペンチル、(メタ)アクリル酸ヘキシル、(メタ)アクリル酸シクロヘキシル、(メタ)アクリル酸2-メトキシエチル、(メタ)アクリル酸2-ヒドロキシエチル、(メタ)アクリル酸2-ヒドロキシプロピル、(メタ)アクリル酸2-ヒドロキシブチル、(メタ)アクリル酸2-エトキシ-ジエチレングリコールがより好ましい。単量体(b2)は、単独又は二種以上で使用できる。
共重合体Aの重量平均分子量(Mw)は10000~500000であることが望ましく、80000~300000であることが更に望ましい。分子量が10000未満であれば、防汚塗料の塗膜が脆弱となり、剥離やクラックを起こし易く、また、500000を超えると、重合体溶液の粘度が上昇し、取扱いが困難となるからである。このMwは、具体的には例えば、10000、20000、30000、40000、50000、60000、70000、80000、90000、100000、200000、300000、400000、500000であり、ここで例示した数値の何れか2つの間の範囲内であってもよい。
Mwの測定方法としては、例えばゲル浸透クロマトグラフィー(GPC法)が挙げられる。
その中でも、酢酸ブチル、酢酸イソブチル、ブチルアルコール、プロピレングリコールモノメチルエーテル、プロピレングリコール1-モノメチルエーテル2-アセタート、トルエン、キシレンが好ましい。これら溶媒については、単独あるいは2種以上を組み合わせて使用できる。
シリコーンオイルBは、親水親油バランス(HLB値)が0.5~9の変性シリコーンオイルである。前記変性シリコーンオイルとしては、例えば、ポリエーテル変性ポリジメチルシロキサン、ポリエーテル変性ポリアルキル(メチル)シロキサン、ポリエステル変性ポリジメチルシロキサン、ポリエーテル長鎖アルキルアラルキル変性ジメチルシリコーンオイル、アミノ変性シリコーンオイル、その他各種官能基による変性シリコーンオイル等が挙げられ、ポリエーテル変性ポリジメチルシロキサン又はポリエーテル長鎖アルキルアラルキル変性ジメチルシリコーンオイルが望ましい。本発明では、これらの変性シリコーンオイルを単独で用いてもよいし、2種以上を組み合わせて用いてもよい。
本発明に使用される防汚薬剤Cとしては、海棲汚損生物に対して殺傷又は忌避作用を有する化合物であればよく、特に限定されない。例えば、以下の有機化合物及び無機化合物が挙げられる。
有機化合物としては、例えば、2-メルカプトピリジンN―オキシド銅、2-メルカプトピリジンN―オキシド亜鉛、ジンクエチレンビスジチオカーバメート、ビス(ジメチルジチオカルバミン酸)亜鉛、ビスジメチルジチオカルバモイルジンクエチレンビスジチオカーバメート、ピリジン・トリフェニルボラン、n-オクタデシルアミン・トリフェニルボラン、3-(2-エチルヘキシルオキシ)プロピルアミン・トリフェニルボラン、4-イソプロピル-ジフェニルメチル、4-フェニルピリジル-ジフェニルボラン、2,4,6-トリクロロマレイミド、n-(2,6ジエチルフェニル)2,3ジクロロマレイミド、テトラメチルチウラムジスルフィド、テトラエチルチウラムジスルフィド、テトラブチルチウラムジスルフィド、クロロメチル-n-オクチルジスルフィド、4,5-ジクロロ-2-n-オクチルー3-イソチアゾロン、3,4-ジクロロフェニル-N-N-ジメチルウレア、2-メチルチオ-4-t-ブチルアミノ-6-シクロプロピルアミノ-s-トリアジン、2,4,5,6-テトラクロロイソフタロニトリル、N-ジクロロフルオロメチルチオ-N',N'-ジメチル-N-p-トリルスルファミド、N-ジクロロメチルチオ-N',N'-ジメチル-N-フェニルスルファミド、2-(4-チアゾリル)ベンズイミダゾール、等が挙げられる。
本発明に用いられる塗料組成物は、他の溶出調整剤、分散剤、他の展着樹脂、沈降防止剤、タレ止め剤、可塑剤、界面活性剤、消泡剤、染料、顔料、有機溶剤及び水等を、本発明の目的を損なわない範囲内で任意に、任意の配合割合で含有することができる。
(エチレン・α-オレフィン共重合体)
エチレン・α-オレフィン共重合体としては、例えば、一般式(3):
前記エチレン・α-オレフィン共重合体としては市販品を用いることができる。市販品としては、例えば、ルーカントHC-10、ルーカントHC-20、ルーカントHC-40、ルーカントHC-100、ルーカントHC-150、ルーカントHC-600、ルーカントHC-2000(いずれも登録商標、三井化学株式会社製)等が挙げられる。これらのエチレン・α-オレフィン共重合体は、単独で用いてもよいし、2種以上を組み合わせて用いてもよい。
前記エチレン・α-オレフィン共重合体の数平均分子量(Mn)は、塗工性能および塗膜物性の観点から、10,000以下が好ましく、1,000~3,000がより好ましい。前記エチレン・α-オレフィン共重合体は、0℃における粘度が20,000Pa・s以下のものが好ましく、500Pa・s以下のものがより好ましい。
エチレン・α-オレフィン共重合体の含有量は、特に限定されないが、シリコーンオイル100質量部に対して、固形分換算で、1~1000質量部であり、好ましくは1~500質量部であり、さらに好ましくは50~300質量部である。
ポリブテン類としては、ポリブテン、ポリイソブテン等が挙げられる。ポリブテン類としては、市販品を用いることができる。市販品としては、例えば、日石ポリブテングレードLV-7、日石ポリブテングレードLV-50、日石ポリブテングレードLV-100、日石ポリブテングレードHV-35、日石ポリブテングレードHV-50、日石ポリブテングレードHV-100、日石ポリブテングレードHV-300、日石ポリブテングレードHV-1900、日石ポリブテングレードSV-7000(いずれもENEOS株式会社製);ポリブテン0N、ポリブテン5N、ポリブテン0SH(いずれも日油株式会社製)等が挙げられる。
ポリブテンの含有量は、特に限定されないが、固形分換算で、シリコーンオイル100質量部に対して1~1000質量部であり、好ましくは1~500質量部であり、さらに好ましくは50~300質量部である。
パラフィン類としては、例えば、n-パラフィン、流動パラフィン、塩素化パラフィン等が挙げられる。
パラフィン類の含有量は、特に限定されないが、固形分換算でシリコーンオイル100質量部に対して1~1000質量部であり、好ましくは1~500質量部であり、さらに好ましくは50~300質量部である。
ワックス類として、例えば、
マイクロクリスタリンワックス、パラフィンワックス等の石油系ワックス、
ポリエチレンワックス、ポリプロピレンワックス等の合成ワックス、植物系ワックス、動物系ワックス等が挙げられる。
ワックス類の含有量は、特に限定されないが、固形分換算でシリコーンオイル100質量部に対して1~1000質量部であり、好ましくは1~500質量部であり、さらに好ましくは50~300質量部である。
ワセリン類としては、例えば、白色ワセリン、黄色ワセリン等が挙げられる。
ワセリン類の含有量は、特に限定されないが、固形分換算でシリコーンオイル100質量部に対して1~1000質量部であり、好ましくは1~500質量部であり、さらに好ましくは50~300質量部である。
ジアルキルスルフィド化合物としては、ジ-tert-ブチルデカスルフィド、ジペンチルテトラスルフィド、ジペンチルペンタスルフィド、ジペンチルデカスルフィド、ジオクチルテトラスルフィド、ジオクチルペンタスルフィド、ジノニルテトラスルフィド、ジノニルペンタスルフィド、ジ-tert-ノニルテトラスルフィド、ジ-tert-ノニルペンタスルフィド、ジデシルテトラスルフィド、ジドデシルテトラスルフィド、ジオクタデシルテトラスルフィド、ジノナデシルテトラスルフィド等が挙げられる。
分散剤としては、例えば、ポリアマイド燐酸系分散剤、ポリアマイド系分散剤、不飽和ポリカルボン酸系分散剤、酸化ポリエチレン系分散剤等 が挙げられる。例として、楠本化成(株)製、ディスパロン6900-20X、ディスパロン4200、ディスパロン1860等が挙げられる。これら分散剤は、単独で又は2種以上を混合して用いることができる。
共重合体A以外の他の展着樹脂を本発明の効果を妨げない任意の配合割合で含有させることができる。
前記展着樹脂としては、ビニル樹脂、アルキッド樹脂、ウレタン樹脂、ポリエステル樹脂、合成ゴム、塩素化ポリエチレン等の合成樹脂、ウッドロジン、ガムロジン、変性ロジン等の天然樹脂が挙げられる。
可塑剤としては、例えば、フタル酸エステル、アジピン酸エステル、トリクレジルフォスフェート等が利用可能である。
本発明の組成物は、通常、水又は有機溶剤に溶解又は分散させておくことが好ましい。これにより、塗料として好適に用いることができる。
これら有機溶剤は、単独で又は2種以上を混合して用いることができる。
本発明の組成物は、種々の漁業具、水中構造物等の防汚塗膜の形成に使用できる。特に、本発明の組成物は、漁網用防汚塗料組成物として好適に使用できる。
本発明の漁網防汚塗膜の形成方法は、上記漁網防汚塗料組成物を用いて被塗膜形成物の表面に防汚塗膜を形成することを特徴とする。本発明の形成方法により得られる防汚塗膜は、表面から徐々に防汚薬剤が放出されることにより、水棲汚損生物の付着防止を図ることができる。
塗布後、乾燥させる。乾燥温度は、室温でよい。乾燥時間は、漁網防汚塗料の付着量に応じて適宜設定すればよい。
各製造例、実施例及び比較例中の%は質量%を示す。重量平均分子量(Mw)は、GPCにより求めた値(ポリスチレン換算値)である。GPCの条件は下記の通りである。
カラム・・・ TSKgel SuperHZM-M 2本
流量・・・ 0.35 mL/min
検出器・・・ RI
カラム恒温槽温度・・・ 40℃
溶離液・・・ THF
加熱残分は、JIS K 5601-1-2:1999(ISO 3251:1993)「塗料成分試験方法-加熱残分」に準拠して測定した値である。
1-1.単量体(a1)の製造例
<製造例1(単量体a1-1の製造)>
温度計、冷却器、攪拌装置及び滴下ロートを備えた四ツ口フラスコに、クロロ酢酸メチル:109g(1.00mol)、アクリル酸:72g(1.00mol)、4-メトキシフェノール:0.1g、酢酸エチル:500gを仕込み、攪拌しながらトリエチルアミン:101g(1.00mol)を40℃以下に保ちながら滴下した。滴下終了後、70~80℃で6時間攪拌した。反応終了後、市水、塩酸水、重曹水の順に有機層を洗浄後、減圧濃縮により溶媒を留去することで単量体a1-1:129.7gを得た。
表1に示す原料を用いて、製造例1と同様の操作で反応を行うことにより単量体a1-2~a1-3を得た。製造例1~3の反応条件、収量を表1に示す。
<製造例4(単量体a2-1の製造)>
(第1反応)
温度計、冷却器、攪拌装置を備えた四ツ口フラスコに、モノクロロ酢酸ナトリウム:215g(1.85mol)、クロロ酢酸メチル:201g(1.85mol)、N-メチル-2-ピロリドン:300gを仕込み、70~80℃で6時間攪拌した。反応終了後、反応液にトルエン:500mlを仕込み、市水、塩酸水、重曹水の順に有機層を洗浄後、減圧濃縮により溶媒を留去することでクロロ酢酸メトキシカルボニルメチル:262gを得た。
次いで、温度計、冷却器、攪拌装置及び滴下ロートを備えた四ツ口フラスコに、第1反応の生成物であるクロロ酢酸メトキシカルボニルメチル:200g(1.20mol)、アクリル酸:87g(1.20mol)、4-メトキシフェノール:0.1g、酢酸エチル:500gを仕込み、攪拌しながらトリエチルアミン:122g(1.20mol)を40℃以下に保ちながら滴下した。滴下終了後、70~80℃で6時間攪拌した。反応終了後、市水、塩酸水、重曹水の順に有機層を洗浄後、減圧濃縮により溶媒を留去することで単量体a2-1:230.6gを得た。
表2に示す原料を用いて、製造例4と同様の操作で反応を行うことにより、表2に示す単量体a2-2~a2-15を得た。製造例4~18の反応条件、収量を表2に示す。
CAMe:クロロ酢酸メチル
CAEt:クロロ酢酸エチル
AA:アクリル酸
MAA:メタクリル酸
TEA:トリエチルアミン
MEHQ:4-メトキシフェノール
CANa:モノクロロ酢酸ナトリウム
NMP:N-メチル-2-ピロリドン
<製造例P1(共重合体溶液A-1の製造)>
温度計、冷却器、攪拌装置及び滴下ロートを備えた四ツ口フラスコに、溶剤として、キシレン:150gを仕込み、窒素ガスを導入し、攪拌しながら95℃を保持した。そこへ、表3に示す配合量(g)の単量体(a1)、単量体(a2)、単量体(b1)及び単量体(b2)と、重合開始剤として、t-ブチルパーオキシ-2-エチルヘキサノエート:0.05g(初期添加)の混合液を95℃で保持しながら3時間かけて滴下した。その後、95℃で1時間攪拌を行った後、1,1,3,3-テトラメチルブチルパーオキシ-2-エチルヘキサノエート:0.2gを1時間毎に5回添加し、さらに同温度で2時間攪拌を行った後、室温に冷却し、共重合体溶液A-1を得た。A-1の加熱残分、Mwを表3に示す。
表3に示す単量体、及び溶剤を用いた以外は、製造例P1と同様の操作で重合反応を行うことにより共重合体溶液A-2~A-15、共重合体溶液R-1~R-2を得た。各重合体の加熱残分、Mwを表3に示す。表中の原料の配合量の数値の単位は、gである。
アクリル酸ステアリル:東京化成(株)製
メタクリル酸ステアリル:東京化成(株)製
メタクリル酸ラウリル:東京化成(株)製
メタクリル酸トリデシル:東京化成(株)製
メタクリル酸メチル:東京化成(株)製
アクリル酸n-ブチル:東京化成(株)製
メタクリル酸イソブチル:東京化成(株)製
メタクリル酸シクロヘキシル:東京化成(株)製
メタクリル酸2-メトキシエチル:商品名「アクリエステルMT」(三菱ケミカル(株)製)
メタクリル酸2-ヒドロキシエチル:東京化成(株)製
キシレン:商品名「キシレン」(三井化学(株)製)
1-ブタノール:東京化成(株)製
酢酸ブチル:東京化成(株)製
<実施例H-1~H-17、I-1~I-14、J-1~J-14、比較例CH-1~CH-3、CI-1~CI-3、CJ-1~CJ-3>
表4~表6に示す成分を、同表に示す割合(質量部)で配合し、直径1.5~2.5mmのガラスビーズと混合分散することにより漁網防汚塗料組成物を製造した。実施例H-1~H-17及び比較例CH-1~CH-3では、防汚薬剤として亜酸化銅及び銅ピリチオンを使用した。実施例I-1~I-14及び比較例CI-1~CI-3では、防汚薬剤としてTOC-3204Fを使用した。実施例J-1~J-14及び比較例CJ-1~CJ-3では、防汚薬剤として3-(2-エチルヘキシルオキシ)プロピルアミン・トリフェニルボラン等を使用した。
商品名「KF-6020」:ポリエーテル変性ジメチルシリコーンオイル(信越化学工業(株)製)、HLB値=4、25℃での動粘度が180mm2/s、比重が1.00
商品名「X-22-2516」:ポリエーテル長鎖アルキルアラルキル変性ジメチルシリコーンオイル(信越化学工業(株)製)、HLB値=1、25℃での動粘度が70mm2/s、比重が0.96
商品名「KF-96-100cs」:ポリジメチルシロキサン(信越化学工業(株)製)、HLB値=0、25℃での動粘度が100mm2/s、比重が0.965
商品名「ポリブテン0N」:可塑剤(日油(株)製)
商品名「ルーカントHC-40」:エチレン・α-オレフィン共重合体(三井化学(株)製)
黄色ワセリン:商品名「ワセリン(黄色)」ナカライテスク(株)製
商品名「DAF-1」:ジ-tert-ノニルペンタスルフィド(DIC(株)製)
亜酸化銅:商品名「NC-301」(日新ケムコ(株)製)
銅ピリチオン:商品名「Copper Omadine Powder」:ビス(2―スルフィドピリジン-1―オラト)銅(ロンザジャパン(株)製)
TOC-3204F:ビス(ジメチルジチオカルバモイル)エチレンビスジチオカルバミン酸亜鉛(ニュートリション&バイオサイエンス(株)製)
3-(2-エチルヘキシルオキシ)プロピルアミン・トリフェニルボラン:商品名「OPA」(日東化成(株)製)
n-オクタデシルアミン・トリフェニルボラン:商品名「ODA」(ベニートヤマ(株)製)
テトラエチルチウラムジスルフィド:商品名「ノクセラーTET-G」(大内新興化学工業(株)製)
商品名「ディスパロン6900-20X」:ポリアマイド系ワックス(楠本化成(株)製)
商品名「ディスパロン4200-20」:酸化ポリエチレン系ワックス(楠本化成(株)製)
商品名「ディスパロン1860」:長鎖ポリアミノアマイドと高分子ポリエステル酸との塩(楠本化成(株)製)
商品名「ディスパロンFA-62」:アクリル系重合物とシリコーンとの混合物(楠本化成(株)製))
得られた防汚塗料組成物について、次の試験を行った。
表4~表6記載の実施例H-1~H-17、I-1~I-14、J-1~J-14、比較例CH-1~CH-3、CI-1~CI-3、CJ-1~CJ-3の各防汚塗料組成物を、ポリエチレン製の漁網(400デニール、50本、8節、縦15cm・横8cm)に、浸漬塗布し2日間室温で乾燥した。得られた防汚塗料組成物が塗布された漁網を40×75cmのSUSの枠に固定し、海中から水深約2mに垂下浸漬し、その防汚性能を表7~表9記載の期間にわたって定期的に観測した。なお、実施例H-1~H-17及びJ-1~J-14、比較例CH-1~CH-3、CJ-1~CJ-3の防汚塗料組成物を塗布した漁網に関しては、和歌山県串本沖の筏にて防汚効果確認試験を行い、実施例I-1~I-14及び比較例CI-1~CI-3の防汚塗料組成物を塗布した漁網に関しては、北海道根室沖の定置網にて防汚効果確認試験を行った。結果を表7~表9に示す。表中の数字は、水棲汚損生物の付着面積(%)を表す。
Claims (4)
- 共重合体(A)、シリコーンオイル(B)、および防汚薬剤(C)を含有する防汚塗料組成物であって、
前記共重合体(A)は、一般式(1)で表される単量体(a)と、前記単量体(a)以外のエチレン性不飽和単量体(b)の共重合体であり、
前記単量体(a)は、前記一般式(1)中のnが2以上である化合物を含み、
前記シリコーンオイル(B)は、親水親油バランス(HLB値)が0.5~9の変性シリコーンオイルである、漁網防汚塗料組成物。
一般式(1):
(式中、R1は水素又はメチル基を示し、R2は、水素、メチル基、フェニル基を示し、R3は、炭素数1~8のアルコキシ基又はフェニル基で置換されていてもよい炭素数1~8のアルキル基であるか、又はフェニル基を示し、nは、1~10の整数を示す。) - 更に、エチレン・α-オレフィン共重合体、ポリブテン類、パラフィン類、ワックス類、ワセリン類、ジアルキルスルフィド化合物から選ばれる1種又は2種以上を含む、請求項1記載の漁網防汚塗料組成物。
- 請求項1~請求項3の何れか1つに記載の漁網防汚塗料組成物を用いて形成される防汚塗膜を表面に有する漁網、漁網用具及び水中構築物。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09176577A (ja) * | 1995-12-26 | 1997-07-08 | Chugoku Marine Paints Ltd | 水中防汚剤組成物、ならびにそれを用いた船体、漁網および水中構造物の防汚処理方法 |
| JP2002265849A (ja) * | 2001-03-14 | 2002-09-18 | Nippon Paint Marine Kk | 塗料組成物 |
| JP2003119419A (ja) * | 2001-10-12 | 2003-04-23 | Dainippon Ink & Chem Inc | 防汚塗料組成物及び塗装物 |
| JP2003119420A (ja) * | 2001-10-12 | 2003-04-23 | Chugoku Marine Paints Ltd | 防汚塗料組成物及び塗装物 |
| JP2009203341A (ja) * | 2008-02-27 | 2009-09-10 | Nitto Kasei Co Ltd | 防汚塗料組成物 |
| WO2020045211A1 (ja) * | 2018-08-29 | 2020-03-05 | 日東化成株式会社 | 防汚塗料組成物 |
| JP2022129226A (ja) * | 2021-02-24 | 2022-09-05 | 日東化成株式会社 | 防汚塗料組成物 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4902037B2 (ja) | 1999-07-08 | 2012-03-21 | 中国塗料株式会社 | 防汚剤組成物、防汚処理基材、並びに基材の防汚処理方法 |
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- 2022-12-15 WO PCT/JP2022/046178 patent/WO2023120360A1/ja not_active Ceased
- 2022-12-15 KR KR1020247024304A patent/KR20240123374A/ko active Pending
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2024
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09176577A (ja) * | 1995-12-26 | 1997-07-08 | Chugoku Marine Paints Ltd | 水中防汚剤組成物、ならびにそれを用いた船体、漁網および水中構造物の防汚処理方法 |
| JP2002265849A (ja) * | 2001-03-14 | 2002-09-18 | Nippon Paint Marine Kk | 塗料組成物 |
| JP2003119419A (ja) * | 2001-10-12 | 2003-04-23 | Dainippon Ink & Chem Inc | 防汚塗料組成物及び塗装物 |
| JP2003119420A (ja) * | 2001-10-12 | 2003-04-23 | Chugoku Marine Paints Ltd | 防汚塗料組成物及び塗装物 |
| JP2009203341A (ja) * | 2008-02-27 | 2009-09-10 | Nitto Kasei Co Ltd | 防汚塗料組成物 |
| WO2020045211A1 (ja) * | 2018-08-29 | 2020-03-05 | 日東化成株式会社 | 防汚塗料組成物 |
| JP2022129226A (ja) * | 2021-02-24 | 2022-09-05 | 日東化成株式会社 | 防汚塗料組成物 |
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| CL2024001806A1 (es) | 2024-11-29 |
| KR20240123374A (ko) | 2024-08-13 |
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