WO2017169559A1 - ブロックポリイソシアネート組成物、一液型コーティング組成物、塗膜、及び塗装物品 - Google Patents
ブロックポリイソシアネート組成物、一液型コーティング組成物、塗膜、及び塗装物品 Download PDFInfo
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- WO2017169559A1 WO2017169559A1 PCT/JP2017/008942 JP2017008942W WO2017169559A1 WO 2017169559 A1 WO2017169559 A1 WO 2017169559A1 JP 2017008942 W JP2017008942 W JP 2017008942W WO 2017169559 A1 WO2017169559 A1 WO 2017169559A1
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- mass
- block polyisocyanate
- coating film
- polyisocyanate composition
- coating
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- XEFDXVWNHLICRX-UHFFFAOYSA-N CN(C(N1C)=O)C1=O Chemical compound CN(C(N1C)=O)C1=O XEFDXVWNHLICRX-UHFFFAOYSA-N 0.000 description 2
- HYMIXNCPVUJKPL-QPJJXVBHSA-N CN(C(N(C)C(O1)=O)=O)/C1=N\C Chemical compound CN(C(N(C)C(O1)=O)=O)/C1=N\C HYMIXNCPVUJKPL-QPJJXVBHSA-N 0.000 description 1
Classifications
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8048—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/34
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
- C08G18/022—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only the polymeric products containing isocyanurate groups
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
- C08G18/027—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only the polymeric products containing urethodione groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/166—Catalysts not provided for in the groups C08G18/18 - C08G18/26
- C08G18/168—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/20—Heterocyclic amines; Salts thereof
- C08G18/2045—Heterocyclic amines; Salts thereof containing condensed heterocyclic rings
- C08G18/2072—Heterocyclic amines; Salts thereof containing condensed heterocyclic rings having at least three nitrogen atoms in the condensed ring system
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/20—Heterocyclic amines; Salts thereof
- C08G18/2081—Heterocyclic amines; Salts thereof containing at least two non-condensed heterocyclic rings
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/7806—Nitrogen containing -N-C=0 groups
- C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
- C08G18/7837—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing allophanate groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/7875—Nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring
- C08G18/7887—Nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring having two nitrogen atoms in the ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/798—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing urethdione groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/8064—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with monohydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/807—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with nitrogen containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/8093—Compounds containing active methylene groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/8096—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with two or more compounds having only one group containing active hydrogen
Definitions
- the present invention relates to a block polyisocyanate composition, a one-component coating composition, a coating film, and a coated article.
- Polyisocyanate compositions are widely used for baking paints as a heat-crosslinking type curing agent together with a melamine-based curing agent.
- formalin is generated when a melamine-based curing agent is used, and from the viewpoints of the global environment, safety, hygiene, etc., polyisocyanates blocked with blocking agents (block polyisocyanates) have attracted attention. Yes.
- Oximes, phenols, alcohols, and lactams are known as blocking polyisocyanate blocking agents. Since the block polyisocyanate composition formed using these blocking agents generally requires a high baking temperature of 140 ° C. or higher, the energy cost is very high. Moreover, there is a limitation that a block polyisocyanate composition that requires high-temperature baking cannot be used for processing into a plastic having low heat resistance.
- a pyrazole-based block polyisocyanate composition for example, see Patent Document 1
- an aliphatic secondary amine-based block polyisocyanate composition for example, Patent Document 2
- a block polyisocyanate composition capable of further reducing the baking temperature a block polyisocyanate composition containing malonic acid diester as a blocking agent (for example, see Patent Document 3), diethyl malonate and ethyl acetoacetate
- a block polyisocyanate composition having a blocking agent see, for example, Patent Documents 4 and 5
- a block polyisocyanate composition having diisopropyl malonate as a blocking agent for example, see Patent Document 6
- the block polyisocyanate composition described in Patent Documents 1 and 2 can be cured at a relatively low temperature, but a baking temperature of about 120 ° C. is necessary, and the baking temperature is further lowered. Is desired.
- a coating film such as a clear layer may be further laminated on the coating layer using these block polyisocyanate compositions, and the block polyisocyanate composition having good adhesion when laminated, and A one-pack type coating composition using this is desired.
- the block polyisocyanate compositions described in Patent Documents 3 to 6 are capable of forming a crosslinked coating film at a temperature of 100 ° C. or lower, and in the coating layer using these block polyisocyanate compositions, Furthermore, it has the further subject in the adhesiveness at the time of laminating
- block polyisocyanate composition depending on the block polyisocyanate composition, the compatibility with some polyols is insufficient, and when used as a curing agent for transparent paints, turbidity may be seen in the coating film. There is a need for block polyisocyanate compositions with excellent solubility.
- an object of the present invention is to provide a block polyisocyanate composition that is excellent in adhesion to the upper layer coating film while maintaining low-temperature curability and also excellent in compatibility with polyol.
- the present inventors have found that the isocyanate composition is excellent in adhesion to the upper layer coating film while maintaining low-temperature curability and excellent in compatibility with the polyol, and has completed the present invention.
- the present invention has the following configuration.
- At least a part of the isocyanate group of the polyisocyanate obtained from one or two or more diisocyanates selected from the group consisting of aliphatic diisocyanates and alicyclic diisocyanates is blocked with an active methylene compound containing a malonic diester Block polyisocyanates that are The block polyisocyanate composition whose specific molar ratio represented by following formula (1) is 0.05-0.60.
- the content (mol%) of C, C represents the content (mol%) of the uretdione group represented by the following formula (III), and D represents the content of the allophanate group represented by the following formula (IV) Amount (mol%) is indicated.)
- [2] The block polyisocyanate composition according to [1], wherein the block polyisocyanate composition contains 55% by mass or more and 80% by mass or less of a component having a number average molecular weight of 1500 or less with respect to the total amount of the block polyisocyanate composition. Composition.
- a block polyisocyanate composition according to any one of [1] to [7], wherein the diisocyanate includes hexamethylene diisocyanate.
- a one-component coating composition comprising the block polyisocyanate composition according to any one of [1] to [8] and a polyvalent active hydrogen compound.
- a coated article comprising the coating film according to [10].
- a composite coating film comprising: a first coating film formed from the one-component coating composition according to [9]; and a second coating film on the first coating film.
- a crosslinked coating film can be formed at a temperature of 100 ° C. or less, and it has excellent adhesion with the upper layer coating film and is excellent in compatibility with polyol.
- the present embodiment a mode for carrying out the present invention (hereinafter simply referred to as “the present embodiment”) will be described in detail.
- the following embodiments are examples for explaining the present invention, and are not intended to limit the present invention to the following contents.
- the present invention can be implemented with appropriate modifications within the scope of the gist thereof.
- Block polyisocyanate composition In the block polyisocyanate composition of this embodiment, at least a part of the isocyanate group of a polyisocyanate obtained from one or two or more diisocyanates selected from the group consisting of aliphatic diisocyanates and alicyclic diisocyanates is malonic acid. Blocked polyisocyanates blocked with active methylene-based compounds containing diesters.
- the specific molar ratio represented by the following formula (1) (hereinafter also simply referred to as “specific molar ratio”) is 0.05 or more and 0.60 or less.
- A represents the content (mol%) of an isocyanurate group represented by the following formula (I) (hereinafter also simply referred to as “isocyanurate group”)
- B represents the following formula ( II) represents the content (mol%) of the iminooxadiazinedione group (hereinafter also referred to simply as “iminooxadiazinedione group”) represented by C)
- C is represented by the following formula (III)
- the content (mol%) of the uretdione group (hereinafter also simply referred to as “uretdione group”) is shown
- D is an allophanate group represented by the following formula (IV) (hereinafter also simply referred to as “allophanate group”). Content (mol%).
- the lower limit of the specific molar ratio is preferably 0.08, more preferably 0.12, still more preferably 0.15, still more preferably 0.18, and even more preferably 0.8. 20.
- the upper limit value of the specific molar ratio is preferably 0.50, more preferably 0.45, still more preferably 0.40, still more preferably 0.37, and even more preferably 0.8. 35.
- the specific molar ratio is 0.05 or more, excellent compatibility with the polyol can be expressed, and when the specific molar ratio is 0.60 or less, low-temperature curability can be maintained.
- Examples of a method for obtaining a block polyisocyanate composition having a specific molar ratio of 0.05 or more and 0.60 or less include, for example, iminooxadiazine diionization reaction, uretdiionization reaction, and allophanatization reaction described later.
- a diazinedione group, a uretdione group, an allophanate group is formed, and specific molar ratio is adjusted.
- the iminooxadiazinedione group has a molar ratio of B / (A + B + C + D) (A to D have the same meanings as A to D represented by the above formula (1)). It is preferable that it is 60 or less.
- the lower limit of the molar ratio is more preferably 0.08, still more preferably 0.12, still more preferably 0.15, and even more preferably 0.18.
- the upper limit of the molar ratio is more preferably 0.50, still more preferably 0.45, still more preferably 0.40, and even more preferably 0.37.
- the molar ratio is more preferably 0.50 or less.
- an iminooxadiazinedione group is formed by an iminooxadiazinedioneization reaction described later, Examples include adjusting the molar ratio.
- the molar ratio of the uretdione group is 0.05 or more and 0.60 or less as a molar ratio of C / (A + B + C + D) (A to D are synonymous with A to D represented by the above formula (1)). It is preferable.
- the lower limit of the molar ratio is more preferably 0.08, still more preferably 0.12, still more preferably 0.15, and even more preferably 0.18.
- the upper limit of the molar ratio is more preferably 0.50, still more preferably 0.45, still more preferably 0.40, and even more preferably 0.37.
- the molar ratio is 0.05 or more, there is a tendency that more excellent compatibility with the polyol can be expressed, and when the molar ratio is 0.60 or less, low temperature curability is further maintained. Tend to be able to. From the viewpoint of increasing the hardness of the coating film using the block polyisocyanate composition of the present embodiment to a high hardness, the molar ratio is more preferably 0.50 or less.
- a uretdione group may be formed by adjusting the specific molar ratio by a uretdione-forming reaction described later. Can be mentioned.
- the molar ratio of allophanate groups is 0.05 or more and 0.60 or less as a molar ratio of D / (A + B + C + D) (A to D are synonymous with A to D represented by the above formula (1)). It is preferable.
- the lower limit of the molar ratio is more preferably 0.08, still more preferably 0.12, still more preferably 0.15, and even more preferably 0.18.
- the upper limit of the molar ratio is more preferably 0.50, still more preferably 0.45, still more preferably 0.40, and even more preferably 0.37.
- the molar ratio is more preferably 0.50 or less.
- a method for obtaining a block polyisocyanate composition in which the molar ratio is 0.05 or more and 0.60 or less for example, an allophanate group is formed by an allophanate reaction described later, and the molar ratio is adjusted. Can be mentioned.
- the block polyisocyanate composition of the present embodiment may contain 55% by mass to 80% by mass of a component having a number average molecular weight of 1500 or less with respect to the total amount (100% by mass) of the block polyisocyanate composition.
- the lower limit of the content of the component having a number average molecular weight of 1500 or less is more preferably 56% by mass, still more preferably 58% by mass, and still more preferably 60% by mass.
- the upper limit of the content of the component having a number average molecular weight of 1500 or less is more preferably 78% by mass, still more preferably 76% by mass, and still more preferably 74% by mass.
- the content When the content is 55% by mass or more, the adhesiveness to the upper coating film and the compatibility with the polyol tend to be improved, and the content is 80% by mass or less. The curability tends to be more excellent.
- the content can be measured by the method described in Examples described later.
- the average number of isocyanate groups in the block polyisocyanate composition of the present embodiment is preferably 2.0 or more and 6.0 or less.
- the lower limit of the average number of isocyanate groups is more preferably 2.2, still more preferably 2.4, still more preferably 2.6, and even more preferably 2.8.
- the upper limit of the average number of isocyanate groups is more preferably 5.0, still more preferably 4.0, still more preferably 3.7, and even more preferably 3.4.
- the average number of isocyanate groups can be measured by the method described in Examples described later.
- the effective isocyanate group content (hereinafter also referred to as “effective NCO content”) of the block polyisocyanate composition of the present embodiment is 1.0% with respect to the total amount (100% by mass) of the block polyisocyanate composition. It is preferable that they are mass% or more and 20 mass% or less.
- the lower limit value of the effective NCO content is more preferably 2.0% by mass, still more preferably 4.0% by mass, and still more preferably 8.0% by mass.
- the upper limit of the effective NCO content is more preferably 18% by mass, still more preferably 16% by mass, and even more preferably 14% by mass.
- Effective NCO content When the effective NCO content is 1.0% by mass or more, curability tends to be better, and when the effective NCO content is 20% by mass or less, compatibility with other components is better. It tends to be. Effective NCO content can be measured by the method as described in the Example mentioned later.
- the solid content concentration of the block polyisocyanate composition of the present embodiment is preferably 40% by mass or more and 90% by mass or less with respect to the total amount (100% by mass) of the block polyisocyanate composition.
- the lower limit of the solid content concentration is more preferably 45% by mass, still more preferably 50% by mass, and still more preferably 55% by mass.
- the upper limit of the solid content concentration is more preferably 85% by mass, still more preferably 80% by mass, and still more preferably 75% by mass.
- the solid content concentration is 40% by mass or more, the solid content of the obtained one-component coating composition tends to be higher, and when the solid content concentration is 90% by mass or less, When blending the liquid type coating composition, the handling property of the block polyisocyanate composition tends to be improved.
- the solid content concentration can be measured by the method described in Examples described later.
- the polyisocyanate of this embodiment is obtained from 1 type, or 2 or more types of diisocyanate chosen from the group which consists of aliphatic diisocyanate and alicyclic diisocyanate.
- aliphatic diisocyanate Although it does not specifically limit as aliphatic diisocyanate, A C4-C30 thing is preferable, for example, tetramethylene diisocyanate, pentamethylene diisocyanate, hexamethylene diisocyanate (henceforth "HDI"), 2,2,4 -Trimethyl-1,6-hexamethylene diisocyanate and lysine diisocyanate. Among these, HDI is more preferable from the viewpoint of industrial availability.
- the aliphatic diisocyanates shown above may be used alone or in combination of two or more.
- the alicyclic diisocyanate is not particularly limited, but is preferably one having 8 to 30 carbon atoms, such as isophorone diisocyanate (hereinafter abbreviated as “IPDI”), 1,3-bis (isocyanatomethyl) -cyclohexane, 4,4'-dicyclohexylmethane diisocyanate, norbornene diisocyanate, and hydrogenated xylylene diisocyanate.
- IPDI is more preferable because of weather resistance and industrial availability.
- the alicyclic diisocyanates shown above may be used alone or in combination of two or more.
- One or more aliphatic diisocyanates can be used in combination with one or more alicyclic diisocyanates.
- the polyisocyanate of this embodiment has a molar ratio (B + C + D) / (A + B + C + D) in the polyisocyanate of 0.05 from the viewpoint of easily adjusting the specific molar ratio of the block polyisocyanate composition to the range of this embodiment. It is preferably 0.50 or less (A to D have the same meanings as A to D represented by the above formula (1)).
- the isocyanate content (hereinafter, also referred to as “NCO content”) of the polyisocyanate of the present embodiment is 15% by mass or more and 30% by mass or less with respect to the total amount (100% by mass) of the polyisocyanate. preferable.
- the lower limit value of the NCO content is more preferably 18% by mass, and further preferably 20% by mass.
- the upper limit of the NCO content is more preferably 27% by mass, and even more preferably 25% by mass.
- the NCO content can be measured by the method described in Examples described later.
- the viscosity of the polyisocyanate of this embodiment at 25 ° C. is 100 mPa.s. s to 5000 mPa.s It is preferable that it is s or less.
- the lower limit of the viscosity is more preferably 150 mPa.s. s, more preferably 200 mPa.s. s, more preferably 250 mPa.s. s.
- the upper limit of the viscosity is more preferably 4000 mPa.s. s, more preferably 3000 mPa.s. s, more preferably 2500 mPa.s. s.
- the viscosity is 100 mPa.s.
- the number average molecular weight of the polyisocyanate of the present embodiment is preferably from 300 to 1,000.
- the lower limit of the number average molecular weight is more preferably 350, still more preferably 400, and still more preferably 450.
- the upper limit of the number average molecular weight is more preferably 900, still more preferably 800, and still more preferably 700.
- the number average molecular weight is 300 or more, the crosslinking property tends to be more maintained, and when the number average molecular weight is 1000 or less, the compatibility with the polyol tends to be better.
- the viscosity of the block polyisocyanate composition tends to be adjusted to a more suitable range.
- the number average molecular weight can be measured by the method described in Examples described later.
- the average number of isocyanate groups in the polyisocyanate of the present embodiment is preferably 2.0 or more and 6.0 or less.
- the lower limit of the average number of isocyanate groups is more preferably 2.2, still more preferably 2.4, still more preferably 2.6, and even more preferably 2.8.
- the upper limit of the average number of isocyanate groups is more preferably 5.0, still more preferably 4.0, still more preferably 3.7, and even more preferably 3.4.
- the average number of isocyanate groups is 2.0 or more, the crosslinking property tends to be maintained more, and when the average number of isocyanate groups is 6.0 or less, the compatibility with the polyol is better. Moreover, it exists in the tendency which can adjust the viscosity of a block polyisocyanate composition to a more suitable range.
- the average number of isocyanate groups can be measured by the method described in Examples described later.
- the diisocyanate monomer mass concentration of the polyisocyanate of this embodiment is 1.0 mass% or less with respect to the total amount (100 mass%) of this polyisocyanate, More preferably, it is 0.5 mass% or less. More preferably, it is 0.3% by mass or less.
- the diisocyanate monomer mass concentration is 1.0 mass% or less, the crosslinkability tends to be better.
- the diisocyanate monomer mass concentration can be measured by the method described in Examples described later.
- the manufacturing method of the polyisocyanate of this embodiment is demonstrated.
- the polyisocyanate of this embodiment is an isocyanurate-forming reaction that forms an isocyanurate group derived from an isocyanate group, an iminooxadiazine dione-forming reaction that forms an iminooxadiazinedione group, and an uretdione-forming reaction that forms a uretdione group.
- an allophanatization reaction to form allophanate groups can be produced at once in the presence of excess diisocyanate monomer, and after completion of the reaction, unreacted diisocyanate monomer can be removed.
- reaction may be performed separately and each polyisocyanate obtained may be mixed in a specific ratio.
- polyisocyanate obtained by carrying out the above reaction all at once, and from the viewpoint of freely adjusting the molar ratio of each functional group, it is preferable to separately produce and then mix.
- Examples of the catalyst for deriving the isocyanurate group-containing polyisocyanate from the diisocyanate monomer include generally used isocyanurate reaction catalysts.
- the isocyanuration reaction catalyst is not particularly limited, but generally has basicity.
- tetraalkylammonium hydroxide such as tetramethylammonium, tetraethylammonium, tetrabutylammonium; acetate thereof;
- Organic weak acid salts such as octylate, myristate, benzoate, etc.
- Hydroxyalkylammonium hydroxide such as trimethylhydroxyethylammonium, trimethylhydroxypropylammonium, triethylhydroxyethylammonium, triethylhydroxypropylammonium; acetic acid Organic weak acid salts such as salt, octylate, myristic acid salt, benzoic acid salt, (3) alkyl carboxylic acid such as acetic acid, caproic acid, octylic acid, myristic acid Metal salts such as zinc and lead, (4) metal alcoholates such as sodium and potassium, (5) aminosilyl group-containing compounds such as hexamethylene disilazane, (6) Mannich bases, (7) tertiary amines and Use in combination with an epoxy compound, (8) Phosphorus compounds such as tributylphosphine, and the like.
- acetic acid Organic weak acid salts such as salt, octylate, myristic acid salt, benzoic acid salt
- quaternary ammonium organic weak acid salt is preferable, and a tetraalkylammonium organic weak acid salt is more preferable from the viewpoint of hardly generating unnecessary by-products.
- the isocyanurate-forming reaction catalyst shown above has a content of 10 mass ppm to 1000 mass ppm with respect to the mass of the charged diisocyanate.
- the upper limit is more preferably 500 ppm by mass, and even more preferably 100 ppm by mass.
- the isocyanuration reaction temperature is preferably 50 ° C. or higher and 120 ° C. or lower, more preferably 60 ° C. or higher and 90 ° C. or lower.
- the reaction temperature is 120 ° C. or lower, coloring tends to be effectively suppressed, which is preferable.
- Isocyanuration reaction is not particularly limited at a desired conversion rate (mass ratio of polyisocyanate produced by isocyanuration reaction to charged diisocyanate monomer), but for example, an acidic compound such as phosphoric acid or acidic phosphate ester Stop by addition.
- an acidic compound such as phosphoric acid or acidic phosphate ester Stop by addition.
- the initial reaction rate of the isocyanuration reaction is very fast, it is difficult to stop the progress of the reaction at the initial stage, and it is necessary to carefully select the reaction conditions, particularly the addition amount and addition method of the catalyst. is there. For example, it is recommended that a catalyst addition method at regular intervals is suitable.
- the conversion rate of the isocyanuration reaction for obtaining the polyisocyanate of the present embodiment is preferably 30% or less, more preferably 25% or less, and further preferably 20% or less.
- the content is 30% or less, the adhesion with the upper layer coating film and the compatibility with the polyol tend to be better, and the viscosity of the block polyisocyanate composition tends to be lowered.
- the catalyst for the iminooxadiazine diation reaction that forms an iminooxadiazinedione group for example, the following catalysts (1) and (2) that are generally known as iminooxadiazine diionization catalysts can be used.
- (1) is preferable from the viewpoint of availability, and (2) is preferable from the viewpoint of safety.
- the amount of these catalysts used is preferably 10 ppm by mass or more and 1000 ppm by mass or less with respect to the mass of the charged diisocyanate.
- the lower limit is more preferably 20 ppm by mass, further preferably 40 ppm by mass, and still more preferably 80 ppm by mass.
- the upper limit value is more preferably 800 ppm by mass, further preferably 600 ppm by mass, and still more preferably 500 ppm by mass or less.
- the reaction temperature is preferably 40 to 120 ° C.
- the lower limit of the reaction temperature is more preferably 50 ° C, and further preferably 55 ° C. Moreover, the upper limit of reaction temperature becomes like this.
- reaction temperature is 40 ° C. or higher, the reaction rate tends to be maintained at a high level, and when the reaction temperature is 120 ° C. or lower, the coloration of the polyisocyanate tends to be suppressed. .
- the catalyst for the uretdione reaction for forming the uretdione group is not particularly limited.
- a tertiary phosphine such as trialkylphosphine such as tri-n-butylphosphine and tri-n-octylphosphine; tris- (dimethylamino) ) Tris (dialkylamino) phosphine such as phosphine; and cycloalkylphosphine such as cyclohexyl-di-n-hexylphosphine.
- uretdione reaction catalysts shown above simultaneously promote the isocyanurate reaction and produce an isocyanurate group-containing polyisocyanate in addition to the uretdione group-containing polyisocyanate. Although it does not specifically limit when it becomes a desired yield, for example, the quenching agent of a uretdione-ized reaction catalyst, such as phosphoric acid and methyl paratoluenesulfonate, is added, and a uretdione-ized reaction is stopped. After stopping the reaction, filter if necessary.
- a uretdione-ized reaction catalyst such as phosphoric acid and methyl paratoluenesulfonate
- a uretdione group can be obtained by heating a diisocyanate monomer without using a uretdione-forming reaction catalyst as described above.
- the heating temperature is preferably 120 ° C. or higher, more preferably 130 ° C. or higher and 170 ° C. or lower, and still more preferably 140 ° C. or higher and 160 ° C. or lower.
- the heating time is preferably 30 minutes or more and 4 hours or less, more preferably 1.0 hour or more and 3.0 hours or less, and further preferably 1.0 hour or more and 2.0 hours or less.
- an allophanatization reaction for forming an allophanate group will be described.
- an allophanate reaction catalyst is preferably used.
- the catalyst include alkyl carboxylates such as tin, lead, zinc, bismuth, zirconium and zirconyl; organotin compounds such as tin 2-ethylhexanoate and dibutyltin dilaurate; lead 2-ethylhexanoate Organic zinc compounds such as zinc 2-ethylhexanoate; bismuth 2-ethylhexanoate, zirconium 2-ethylhexanoate, and zirconyl 2-ethylhexanoate. These can be used alone or in combination of two or more.
- the above isocyanurate reaction catalyst can also be an allophanate reaction catalyst.
- the allophanatization reaction using the above isocyanurate reaction catalyst the isocyanurate group-containing polyisocyanate is naturally produced. In view of economic production, it is preferable to perform the allophanate reaction and the isocyanurate reaction using the above isocyanurate reaction catalyst as the allophanate reaction catalyst.
- the alcohol that can be used to form the allophanate group is not particularly limited, but is preferably an alcohol formed only of carbon, hydrogen, and oxygen, more preferably a monoalcohol, and even more preferably a monoalcohol having a molecular weight of 200 or less.
- Specific examples of the compound include monoalcohols such as methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol, octanol, and nonanol; ethylene glycol, 1,3-butanediol, neopentyl glycol, 2-ethylhexane, and the like.
- dialcohols such as diols. These may be used alone or in combination of two or more.
- the above-mentioned isocyanuration reaction, iminooxadiazine diionization reaction, uretdioneization reaction, and allophanate reaction can be performed sequentially, or some of them can be performed in parallel.
- the isocyanuration reaction is preceded, followed by the uretdione reaction.
- the production process can be simplified if the isocyanurate formation reaction is preceded and then the uretdione reaction by heat is performed.
- the polyisocyanate of this embodiment can be obtained by removing unreacted diisocyanate monomer from the reaction solution after completion of the reaction by thin film distillation, extraction or the like.
- an antioxidant or an ultraviolet absorber may be added to the obtained polyisocyanate for the purpose of suppressing coloring during storage.
- the antioxidant include hindered phenols such as 2,6-di-t-butyl-p-cresol, and examples of the ultraviolet absorber include benzotriazole and benzophenone. These may be used alone or in combination of two or more. These addition amounts are preferably 10 ppm by mass or more and 500 ppm by mass or less.
- Block polyisocyanate In the block polyisocyanate of the present embodiment, at least a part of the isocyanate groups of the polyisocyanate of the present embodiment is blocked with an active methylene compound containing a malonic acid diester.
- the block polyisocyanate of this embodiment is obtained by reacting and blocking at least part of the isocyanate group of the polyisocyanate with an active methylene compound containing a malonic diester as a blocking agent.
- the blocked polyisocyanate of this embodiment is only required to be blocked with an active methylene compound containing at least a malonic acid diester, and a blocking agent other than the malonic acid diester as long as the effects of the present embodiment are not impaired. It may further have an isocyanate group blocked by.
- the active methylene compound of this embodiment contains a malonic acid diester compound. Further, in addition to the malonic acid diester compound, it is preferable to further contain a ⁇ keto ester compound or a ⁇ amide ester compound, and it is more preferable to further contain a ⁇ keto ester compound. Furthermore, as the active methylene compound, an active methylene compound other than the malonic acid diester compound, ⁇ keto ester compound, and ⁇ amide ester compound may be included as long as the effects of the present embodiment are not impaired.
- the malonic acid diester compound is not particularly limited.
- dimethyl malonate, diethyl malonate, di-n-propyl malonate, diisopropyl malonate, di-n-butyl malonate, diisobutyl malonate, di-t-butyl malonate, and methyl t-butyl malonate More preferred are dimethyl malonate, diethyl malonate, di-n-propyl malonate, and diisopropyl malonate, and even more preferred are diethyl malonate and diisopropyl malonate.
- the malonic acid diester compound shown above may be used alone or in combination of two or more.
- the ⁇ -ketoester compound is not particularly limited, and examples thereof include acetoacetic acid alkyl esters such as methyl acetoacetate, ethyl acetoacetate, isopropyl acetoacetate, n-propyl acetoacetate, t-butyl acetoacetate, and n-butyl acetoacetate; And acetoacetic acid aryl esters such as phenyl acetate; and isobutanoyl acetates such as methyl isobutanoyl acetate and ethyl isobutanoyl acetate.
- acetoacetate is preferred from the viewpoint of storage stability, alkyl acetoacetate is more preferred, and among them, methyl acetoacetate, ethyl acetoacetate, and isopropyl acetoacetate are more preferred, from the viewpoint of storage stability and availability. Even more preferred is ethyl acetoacetate.
- the ⁇ ketoester compounds shown above may be used alone or in combination of two or more.
- Examples of the ⁇ amide ester compound include compounds disclosed in Japanese Patent No. 5562267, specifically, compounds obtained by amidating one ester of a malonic acid diester compound with an amine.
- the ⁇ amide ester compound may be used alone or in combination of two or more.
- the blocking agent other than the active methylene compound is not particularly limited, and examples thereof include alcohol-based, phenol-based, oxime-based, amine-based, acid amide-based, imidazole-based, pyridine-based, and mercaptan-based compounds.
- Blocking agents other than the active methylene-based compound can be used as long as the low-temperature curability is not impaired with respect to the isocyanate group of the polyisocyanate.
- the block polyisocyanate composition of this embodiment is a monohydric alcohol in order to further improve the crystallinity of the block polyisocyanate composition itself and the storage stability in a one-component coating composition using the block polyisocyanate composition. May further be included.
- the monohydric alcohol is not particularly limited.
- methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, 2-butanol, t-butanol, n-amyl alcohol isoamyl alcohol, 2-methyl- 1-butanol, n-hexanol, 2-methyl-1-pentanol, 2-ethyl-1-butanol, n-heptanol, n-octanol, 2-ethyl-1-hexanol, methyl cellosolve, ethyl cellosolve, butyl cellosolve, methyl
- Examples include carbitol, diethyl carbitol, propylene glycol monomethyl ether, cyclohexanol, phenol, benzyl alcohol, and isoamyl alcohol.
- the monohydric alcohol shown above may be used alone or in combination of two or more.
- the content of the monohydric alcohol is not particularly limited, but is preferably 10 equivalent% or more and 500 equivalent% or less, more preferably 20 equivalent% or more and 400 equivalent% or less with respect to the blocked isocyanate group, More preferably, it is 30 equivalent% or more and 300 equivalent% or less.
- the block polyisocyanate composition of the present embodiment can further contain a phosphite compound.
- a phosphite compound By containing the phosphite compound, the coloration with time of the block polyisocyanate composition itself tends to be further suppressed.
- a phosphite compound is not particularly limited, and examples thereof include a phosphite diester compound and a phosphite triester compound.
- the phosphite compound shown above may be used alone or in combination of two or more.
- the phosphite diester compound is not particularly limited, and examples thereof include dialkyl phosphite compounds such as dilauryl hydrogen phosphite and dioleyl hydrogen phosphite; and phosphite diaryl ester compounds such as diphenyl hydrogen phosphite.
- the content of the phosphite compound is not particularly limited, but is preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.05% by mass with respect to the mass (100% by mass) of the block polyisocyanate. % To 5.0% by mass, more preferably 0.1% to 2.0% by mass.
- the content is 0.01% by mass or more, the effect of suppressing coloration with time tends to be more obtained, and when the content is 10% by mass or less, the curability can be more suitably maintained. There is a tendency.
- the production method of the block polyisocyanate composition of the present embodiment is, for example, a reaction step (block) in which the polyisocyanate of the present embodiment is reacted with an active methylene compound containing a malonic diester to obtain a block polyisocyanate. And a mixing step of mixing the obtained block polyisocyanate and various additives to obtain a block polyisocyanate composition.
- the blocking reaction can be performed with or without the presence of a solvent.
- a solvent it is preferable to use a solvent inert to the isocyanate group.
- the inert solvent include butyl acetate and toluene.
- the blocking reaction is not particularly limited, but organic metal salts such as tin, zinc and lead; metal alcoholates such as sodium methylate, sodium ethylate, sodium phenolate and potassium methylate; tertiary amines and the like are used as catalysts. May be.
- the blocking reaction is preferably performed at ⁇ 20 ° C. or higher and 150 ° C. or lower, more preferably 0 ° C. or higher and 100 ° C. or lower. Performing the blocking reaction at 150 ° C or lower tends to be advantageous in terms of suppressing side reactions. By performing the blocking reaction at -20 ° C or higher, the reaction rate can be adjusted to a suitable range, and production It tends to be advantageous in terms of sex.
- the blocking reaction is preferably blocked so that substantially active isocyanate groups are eliminated.
- the blocking reaction with two or more blocking agents they may be performed simultaneously, or the free isocyanate group remaining after blocking with one blocking agent may be blocked with the other blocking agent.
- At least a part of the catalyst used in the blocking reaction may be neutralized with the following acidic compound or the like. Neutralization tends to improve the thermal stability of the block polyisocyanate composition, which is preferable.
- the acidic compound is not particularly limited, and examples thereof include inorganic acids such as hydrochloric acid, phosphorous acid, and phosphoric acid; sulfonic acids such as methanesulfonic acid and p-toluenesulfonic acid; ethyl phosphate, diethyl phosphate, isopropyl phosphate, diisopropyl phosphate, Examples thereof include phosphate esters such as butyl phosphate, dibutyl phosphate, 2-ethylhexyl phosphate, and di (2-ethylhexyl) phosphate.
- the amount of the acidic compound used is preferably 0.3 equivalents or more and 3.0 equivalents or less, more preferably 0.5 equivalents or more and 2.0 equivalents or less, and still more preferably 0.8 equivalents or less with respect to the catalyst. It is 7 equivalents or more and 1.5 equivalents or less.
- the one-component coating composition of the present embodiment includes the above-described block polyisocyanate composition and a polyvalent active hydrogen compound.
- Polyvalent active hydrogen compound Although it does not specifically limit as a polyvalent active hydrogen compound of this embodiment, it is preferable that at least 1 sort (s) chosen from the group which consists of a polyol, a polyamine, and an alkanolamine is included, and it is more preferable that a polyol is included among them. .
- the polyol is not particularly limited, and examples thereof include polyester polyol, acrylic polyol, polyether polyol, polyolefin polyol, fluorine polyol, polycarbonate polyol, and polyurethane polyol.
- the polyols shown above may be used alone or in combination of two or more.
- the polyester polyol is not particularly limited.
- the polyester polyol may be one selected from the group consisting of succinic acid, adipic acid, sebacic acid, dimer acid, maleic anhydride, phthalic anhydride, isophthalic acid, and terephthalic acid carboxylic acid. Obtained by a condensation reaction between two or more dibasic acids and one or more polyhydric alcohols selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol, neopentyl glycol, trimethylolpropane, and glycerin. Examples include polyester polyols and polycaprolactones obtained by ring-opening polymerization of ⁇ -caprolactone using, for example, a polyhydric alcohol.
- the ethylenically unsaturated bond-containing monomer having a hydroxyl group is not particularly limited, and examples thereof include hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxybutyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, and methacrylic acid. Examples include hydroxybutyl acid. Preferred are hydroxyethyl acrylate and hydroxyethyl methacrylate.
- ethylenically unsaturated bond-containing monomers that can be copolymerized with the above monomers are not particularly limited.
- the polyether polyols are not particularly limited, but for example, using a polybasic hydroxy compound alone or as a mixture, a hydroxide such as lithium, sodium or potassium; a strongly basic catalyst such as alcoholate or alkylamine, Polyether polyols obtained by adding a single or mixture of alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide, cyclohexene oxide, styrene oxide or the like; polyalkylene compounds obtained by reacting alkylene oxide with a polyfunctional compound such as ethylenediamine Ether polyols; so-called polymer polyols obtained by polymerizing acrylamide or the like using these polyethers as a medium.
- a polybasic hydroxy compound alone or as a mixture, a hydroxide such as lithium, sodium or potassium a strongly basic catalyst such as alcoholate or alkylamine
- Polyether polyols obtained by adding a single or mixture of alkylene oxides such as ethylene oxide, propylene oxide
- the polyolefin polyol is not particularly limited, and examples thereof include polybutadiene having two or more hydroxyl groups, hydrogenated polybutadiene, polyisoprene, and hydrogenated polyisoprene.
- the number of hydroxyl groups (hereinafter also referred to as “average number of hydroxyl groups”) possessed by one statistical molecule of polyol is preferably 2.0 or more. When the hydroxyl group average number of the polyol is 2.0 or more, there is a tendency that a decrease in the crosslinking density of the obtained coating film can be suppressed.
- the fluorine polyol is a polyol containing fluorine in the molecule.
- fluoroolefins, cyclovinyl ethers, hydroxyalkyl vinyl ethers, monocarboxylic acids disclosed in JP-A-57-34107 and JP-A-61-275311 are disclosed.
- Examples include copolymers such as acid vinyl esters.
- Polycarbonate polyols are not particularly limited, and examples thereof include dialkyl carbonates such as dimethyl carbonate; alkylene carbonates such as ethylene carbonate; low molecular carbonate compounds such as diaryl carbonates such as diphenyl carbonate; low molecular polyols used in the above-described polyester polyols. And those obtained by condensation polymerization.
- Polyurethane polyol is not particularly limited, and can be obtained, for example, by reacting polyol and polyisocyanate by a conventional method.
- Examples of the polyol not containing a carboxyl group include ethylene glycol and propylene glycol as low molecular weights, and examples of the high molecular weight include acrylic polyol, polyester polyol, and polyether polyol.
- the hydroxyl value per resin of the polyol shown above is not particularly limited, but is preferably 10 mgKOH / resin g or more and 300 mgKOH / resin g or less.
- the hydroxyl value per resin is 10 mgKOH / resin g or more, the crosslinking density is suppressed from decreasing, and the intended physical properties tend to be sufficiently achieved.
- the hydroxyl value per resin is 300 mgKOH / resin g or less, an excessive increase in the crosslinking density is suppressed, and the mechanical properties of the coating film tend to be maintained at a high level.
- the equivalent ratio of the hydroxyl group of the blocked isocyanate group to the polyol is preferably 10: 1 to 1:10.
- the polyamine is not particularly limited, but is preferably one having two or more primary amino groups or secondary amino groups in one molecule, and more preferably three or more in one molecule.
- polyamines are not particularly limited.
- diamines such as ethylenediamine, propylenediamine, butylenediamine, triethylenediamine, hexamethylenediamine, 4,4′-diaminodicyclohexylmethane, piperazine, 2-methylpiperazine, and isophoronediamine are used.
- Chain polyamines having three or more amino groups such as bishexamethylenetriamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentamethylenehexamine, tetrapropylenepentamine; 1,4,7,10,13 , 16-hexaazacyclooctadecane, 1,4,7,10-tetraazacyclodecane, 1,4,8,12-tetraazacyclopentadecane, 1,4,8,11-tetraazacyclotetradecane Cyclic polyamines and the like.
- Alkanolamine is a compound having an amino group and a hydroxyl group in one molecule.
- the alkanolamine is not particularly limited. For example, monoethanolamine, diethanolamine, aminoethylethanolamine, N- (2-hydroxypropyl) ethylenediamine, mono-, di- (n- or iso-) propanolamine, ethylene glycol -Bis-propylamine, neopentanolamine, and methylethanolamine.
- the one-component coating composition according to the present invention may further contain an existing melamine resin, epoxy resin, or polyurethane resin as necessary.
- an oxazoline group containing compound and a carbodiimide group containing compound can be mix
- a hydrazide group containing compound and a semicarbazide group containing compound can be mix
- the one-part coating composition of the present embodiment includes an antioxidant such as hindered phenol, an ultraviolet absorber such as benzotriazole and benzophenone as necessary; titanium oxide, carbon black, indigo, quinacridone, pearl mica, and the like. Pigment; metal powder pigment such as aluminum; rheology control agent such as hydroxyethyl cellulose, urea compound, microgel; and hardening accelerator such as tin compound, zinc compound, amine compound and the like.
- an antioxidant such as hindered phenol, an ultraviolet absorber such as benzotriazole and benzophenone as necessary
- titanium oxide carbon black, indigo, quinacridone, pearl mica, and the like.
- Pigment metal powder pigment such as aluminum
- rheology control agent such as hydroxyethyl cellulose, urea compound, microgel
- hardening accelerator such as tin compound, zinc compound, amine compound and the like.
- the one-component coating composition prepared as described above is made of materials such as steel, surface-treated steel, and plastics, inorganic materials, etc. by roll coating, curtain flow coating, spray coating, electrostatic coating, bell coating, etc. In addition, it is suitably used as a primer, intermediate coating or top coating. In addition, this coating composition further imparts cosmetic properties, weather resistance, acid resistance, rust resistance, chipping resistance, adhesion, etc. to pre-coated metal, automobile coating, plastic coating, etc. that contain a rust-proof steel plate. Preferably used. Furthermore, the coating composition is also useful as a urethane raw material for adhesives, pressure-sensitive adhesives, elastomers, foams, surface treatment agents and the like.
- the coating film of this embodiment is formed by the one-component coating composition described above. Moreover, the coated article of this embodiment is provided with the coating film of this embodiment.
- the one-component coating composition of the present embodiment is applied by roll coating, curtain flow coating, spray coating, electrostatic coating, bell coating, etc., and then subjected to a baking process to form a coating film. Can be formed. It is preferable that a crosslinked coating film is formed on this coating film through a baking step.
- the crosslinked coating film after curing of the one-pack coating composition can have not only a polyisocyanate-derived urethane bond before the blocking reaction but also polar groups such as an amide bond and an ester bond derived from a blocked isocyanate group. Therefore, the cross-linked coating film formed from the one-pack type coating composition of the present embodiment is subjected to layer coating or recoating in addition to chemical resistance, heat resistance, water resistance, etc., which are characteristics of general urethane cross-linked coating films. When performed, hydrogen bonding between layers is possible, and the adhesion between layers tends to be excellent. Even in the coating film in which the crosslinked structure is not completely formed after the baking step, since it has the above polar group, it is excellent in adhesion as well as the crosslinked coating film at the time of lamination coating or recoating.
- an organic amine compound is present in the one-component coating composition of this embodiment or in the cured film. Therefore, it may act as a catalyst for the crosslinking reaction of the lower layer or the upper layer.
- the composite coating film of this embodiment is provided with the 1st coating film formed with the one-pack type coating composition mentioned above, and the 2nd coating film on a 1st coating film.
- the composite coating film of this embodiment is excellent in adhesiveness between the first coating film and the second coating film that is the upper layer coating film.
- the second coating film is not particularly limited, and can be, for example, a coating film containing an acrylic melamine resin or an acrylic urethane resin.
- the manufacturing method of the composite coating film of this embodiment applies the 1st coating solution containing the one-pack type coating composition mentioned above, forms the 1st coating film, and on the said 1st coating film Applying a second coating solution to form a second coating film.
- the first coating solution can be, for example, a primer or an intermediate coating.
- the second coating solution can be a top coat, for example.
- NCO content (mass%)
- the NCO content (isocyanate content, mass%) of the polyisocyanate was measured as follows. To the Erlenmeyer flask, 1 to 3 g of the polyisocyanate produced in the production example was precisely weighed (Wg), and 20 mL of toluene was added to completely dissolve the polyisocyanate. Thereafter, 10 mL of a 2N di-n-butylamine toluene solution was added, thoroughly mixed, and then allowed to stand at room temperature for 15 minutes. Further, 70 mL of isopropyl alcohol was added to this solution and mixed thoroughly.
- NCO content (V 1 ⁇ V 2 ) ⁇ F ⁇ 42 / (W ⁇ 1000) ⁇ 100
- Viscosity (Physical property 2) Viscosity (mPa.s)
- the viscosity of the polyisocyanate was measured at 25 ° C. using an E-type viscometer (trade name: RE-85R, manufactured by Toki Sangyo Co., Ltd.). In the measurement, a standard rotor (1 ° 34 ′ ⁇ R24) was used. The number of revolutions was set as follows. 100r. p. m. (If less than 128 mPa.s) 50r. p. m. (128 mPa.s or more and less than 256 mPa.s) 20r. p. m.
- (Physical property 4) Content of a component having a number average molecular weight of 1500 or less in the block polyisocyanate composition
- the content of a component having a number average molecular weight of 1500 or less in the block polyisocyanate composition is the same as the above (Physical property 3) number average molecular weight.
- the block polyisocyanate composition was measured and calculated using an apparatus, a column, and a calibration curve.
- (Physical property 5) Average number of isocyanate groups The average number of isocyanate groups of the polyisocyanate was calculated based on the following formula from (Physical property 1) NCO content and (Physical property 3) number average molecular weight.
- Isocyanate group average number number average molecular weight ⁇ NCO content / 100/42
- the average number of isocyanate groups in the block polyisocyanate composition was calculated based on the following formula from the following (Physical property 7) effective NCO content and the number average molecular weight of the block polyisocyanate measured in (Physical property 4).
- Isocyanate group average number number average molecular weight ⁇ effective NCO content / 100/42
- Diisocyanate monomer mass concentration (mass%)
- the diisocyanate mass concentration of the polyisocyanate was determined as follows. First, a 20 mL sample bottle was placed on a digital balance, and about 1 g of the sample was precisely weighed. Next, 0.03 to 0.04 g of nitrobenzene (internal standard solution) was added and precisely weighed. Finally, after adding about 9 mL of ethyl acetate, the lid was tightly mixed well to prepare the sample. The prepared sample was analyzed by gas chromatography under the following conditions and quantified. Equipment: “GC-8A” manufactured by SHIMADZU Column: “Silicon OV-17” manufactured by Shinwa Kako Column oven temperature: 120 ° C Injection / detector temperature: 160 ° C
- Effective NCO content (mass%)
- the effective NCO content of the block polyisocyanate composition was determined as follows.
- the effective NCO content (% by mass) here is used to quantify the amount of blocked isocyanate groups that can participate in the crosslinking reaction present in the blocked polyisocyanate composition after the blocking reaction, Expressed as mass%, it was calculated by the following formula. ⁇ (Solid content of block polyisocyanate composition (% by mass)) ⁇ (mass of polyisocyanate used in reaction ⁇ N content of polyisocyanate (% by mass)) ⁇ / (of block polyisocyanate composition after blocking reaction) Resin mass)
- ⁇ (Solid content of block polyisocyanate composition (% by mass)) ⁇ (mass of polyisocyanate used in reaction ⁇ N content of polyisocyanate (% by mass)) ⁇ / (of block polyisocyanate composition after blocking reaction) Resin mass)
- Molar amount of iminooxadiazinedione group (mol%, indicated by “B”): around 144.6 ppm: integral value / 1 Molar amount of isocyanurate group (mol%, indicated by “A”): around 148.6 ppm: integral value ⁇ 3 Mole amount of uretdione group (mol%, indicated by “C”): around 157.5 ppm: integral value / 2 Molar amount of allophanate group (mol%, indicated by “D”): around 154 ppm: integral value ⁇ 1
- the obtained molar ratios were the following four types, and the values for each sample of the polyisocyanate and the block polyisocyanate composition were obtained.
- the ⁇ coating solution obtained in (Evaluation 1) was applied to a mild steel plate with an air spray gun to a dry film thickness of 40 ⁇ m, dried at 23 ° C. for 30 minutes, and baked at 90 ° C. for 20 minutes.
- ⁇ coating layer 2 was obtained.
- the ⁇ coating layer 2 is coated with a ⁇ coating solution so as to have a dry film thickness of 40 ⁇ m, dried at 23 ° C. for 30 minutes, and baked at 140 ° C. for 30 minutes to form a multilayer coating film having an ⁇ layer and a ⁇ layer. Obtained.
- the adhesion test of the obtained multilayer coating film was performed according to JIS K5600-5-6. Adhesion with the upper coating film was evaluated according to the following criteria. ⁇ : Peeling paint film, no lift ⁇ : Partly lifted at the cut part ⁇ : Less than half peeled film ⁇ : Half or more peeled film
- the coating film hardness of the obtained coating film was measured using the following apparatus, and evaluated according to the following criteria.
- Equipment used Micro hardness tester FM-700 (Future Tech Co., Ltd.)
- Indenter Diamond diamond indenter for Knoop hardness
- ⁇ Knoop hardness is 10 or more
- ⁇ Knoop hardness is 9 or more and less than 10
- Knoop hardness is less than 9
- polyisocyanate P-5 having a number average molecular weight of 560, an average number of isocyanate groups of 2.8, and an HDI monomer mass concentration of 0.2% by mass was obtained.
- Table 1 shows the molar ratios obtained from the 13 C-NMR measurement of the obtained polyisocyanate.
- Example 1 A four-necked flask equipped with a stirrer, thermometer, reflux condenser, and nitrogen blowing tube was placed in a nitrogen atmosphere. 100 parts of polyisocyanate P-1, 82.2 parts of diethyl malonate, 7.4 parts of ethyl acetoacetate Then, 40 parts of n-butyl acetate was added, 0.8 part of 28% sodium methylate solution was added, and the mixture was reacted at 60 ° C. for 6 hours. Thereafter, 79 parts of n-butanol was added and stirring was continued at that temperature for 2 hours.
- Example 6 A four-necked flask equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen blowing tube was placed in a nitrogen atmosphere, 100 parts of polyisocyanate P-1, 91.3 parts of diethyl malonate, 80.0 parts of n-butyl acetate was charged, 0.8 part of 28% sodium methylate solution was added, and the reaction was carried out at 60 ° C. for 6 hours. As a result of measuring the infrared spectrum, disappearance of the isocyanate group was confirmed, and 0.8 part of mono (2-ethylhexyl) phosphate was added.
- the obtained blocked polyisocyanate composition was transferred to a recovery flask, using an evaporator, 60 ° C., at reduced pressure of the 10 hPa, subjected to vacuum distillation 60 minutes, after removing most of the solvent, 13 C- NMR measurements were performed and the results obtained for each molar ratio are shown in Table 2. Subsequently, the low temperature curability, the adhesion with the upper coating film, the compatibility with the polyol, and the coating film hardness were evaluated. The obtained results are shown in Table 2.
- Examples 2 to 5, 7 to 9, Comparative Examples 1 to 5 A block polyisocyanate composition was obtained in the same manner as in Example 1 except that the formulation shown in Table 2 was used. Tables 2 and 3 show the physical properties and evaluation results of the obtained block polyisocyanate composition.
- the block polyisocyanate compositions of the examples were excellent in adhesion with the upper layer coating film and excellent in compatibility with the polyol. Moreover, by using the one-pack type coating composition containing the block polyisocyanate composition of the example, it was possible to obtain a coating film having good low-temperature curability and excellent coating film hardness.
- the block polyisocyanate composition and the one-component coating composition according to the present invention can be used as raw materials for paints, inks, adhesives, casting materials, elastomers, foams, and plastic materials. Among them, it can be suitably used for paints for information equipment such as automobile paints, home appliance paints, personal computers and mobile phones.
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Abstract
Description
[1]
脂肪族ジイソシアネート及び脂環式ジイソシアネートからなる群より選択される1種又は2種以上のジイソシアネートから得られるポリイソシアネートが有するイソシアネート基の少なくとも一部が、マロン酸ジエステルを含有する活性メチレン系化合物でブロックされているブロックポリイソシアネートを含み、
下記式(1)で表される特定モル比が、0.05以上0.60以下である、ブロックポリイソシアネート組成物。
特定モル比=(B+C+D)/(A+B+C+D) (1)
(式(1)中、Aは、下記式(I)で表されるイソシアヌレート基の含有量(モル%)を示し、Bは、下記式(II)で表されるイミノオキサジアジンジオン基の含有量(モル%)を示し、Cは、下記式(III)で表されるウレトジオン基の含有量(モル%)を示し、Dは、下記式(IV)で表されるアロファネート基の含有量(モル%)を示す。)
前記ブロックポリイソシアネート組成物は、該ブロックポリイソシアネート組成物の総量に対して、数平均分子量が1500以下である成分を、55質量%以上80質量%以下含む、[1]に記載のブロックポリイソシアネート組成物。
[3]
前記マロン酸ジエステル化合物は、マロン酸ジエチルを含む、[1]又は[2]に記載のブロックポリイソシアネート組成物。
[4]
前記マロン酸ジエステル化合物は、マロン酸ジイソプロピルを含む、[1]~[3]のいずれかに記載のブロックポリイソシアネート組成物。
[5]
前記活性メチレン系化合物は、βケトエステル化合物をさらに含有する、[1]~[4]のいずれかに記載のブロックポリイソシアネート組成物。
[6]
前記βケトエステル化合物は、アセト酢酸エチルを含む、[5]に記載のブロックポリイソシアネート組成物。
[7]
1価アルコールを、さらに含む、[1]~[6]のいずれかに記載のブロックポリイソシアネート組成物。
[8]
前記ジイソシアネートは、ヘキサメチレンジイソシアネートを含む、[1]~[7]のいずれかに記載のブロックポリイソシアネート組成物。
[9]
[1]~[8]のいずれかに記載のブロックポリイソシアネート組成物と、多価活性水素化合物と、を含む、一液型コーティング組成物。
[10]
[9]に記載の一液型コーティング組成物により形成された、塗膜。
[11]
[10]に記載の塗膜を備える、塗装物品。
[12]
[9]に記載の一液型コーティング組成物を含む第1の塗料溶液を塗装し、第1の塗膜を形成する工程と、前記第1の塗膜上に第2の塗料溶液を塗装し、第2の塗膜を形成する工程と、を含む、複合塗膜の製造方法。
[13]
[9]に記載の一液型コーティング組成物により形成された第1の塗膜と、前記第1の塗膜上に第2の塗膜と、を備える、複合塗膜。
本実施形態のブロックポリイソシアネート組成物は、脂肪族ジイソシアネート及び脂環族ジイソシアネートからなる群より選ばれる1種又は2種以上のジイソシアネートから得られるポリイソシアネートが有するイソシアネート基の少なくとも一部が、マロン酸ジエステルを含有する活性メチレン系化合物でブロックされているブロックポリイソシアネートを含む。また、上記ブロックポリイソシアネート組成物において、下記式(1)で表される特定モル比(以下、単に「特定モル比」ともいう。)が、0.05以上0.60以下である。
特定モル比=(B+C+D)/(A+B+C+D) (1)
式(1)中、Aは、下記式(I)で表されるイソシアヌレート基(以下、単に「イソシアヌレート基」ともいう。)の含有量(モル%)を示し、Bは、下記式(II)で表されるイミノオキサジアジンジオン基(以下、単に「イミノオキサジアジンジオン基」ともいう。)の含有量(モル%)を示し、Cは、下記式(III)で表されるウレトジオン基(以下、単に「ウレトジオン基」ともいう。)の含有量(モル%)を示し、Dは、下記式(IV)で表されるアロファネート基(以下、単に「アロファネート基」ともいう。)の含有量(モル%)を示す。
本実施形態のポリイソシアネートは、脂肪族ジイソシアネート及び脂環族ジイソシアネートからなる群より選ばれる1種又は2種以上のジイソシアネートから得られる。
本実施形態のポリイソシアネートの製造方法を説明する。本実施形態のポリイソシアネートは、イソシアネート基から誘導されるイソシアヌレート基を形成するイソシアヌレート化反応、イミノオキサジアジンジオン基を形成するイミノオキサジアジンジオン化反応、ウレトジオン基を形成するウレトジオン化反応、及びアロファネート基を形成するアロファネート化反応を、過剰のジイソシアネートモノマー存在下で一度に製造し、反応終了後、未反応のジイソシアネートモノマーを除去して得ることができる。また、上記の反応を別々に行い、それぞれ得たポリイソシアネートを特定比率で混合してもよい。ここで、製造の簡便さから、上記反応を一度に行いポリイソシアネートを得ることが好ましく、各官能基のモル比を自由に調整する観点から、別々に製造した後混合することが好ましい。
(1)テトラメチルアンモニウムフルオリド水和物、テトラエチルアンモニウムフルオリド等の、一般式M[Fn]、又は一般式M[Fn(HF)m]で表される(ポリ)フッ化水素(式中、m及びnは、m/n>0の関係を満たす各々整数であり、Mは、n荷電カチオン(混合物)又は合計でn価の1個以上のラジカルを示す。)
(2)3,3,3-トリフルオロカルボン酸;4,4,4,3,3-ペンタフルオロブタン酸;5,5,5,4,4,3,3-ヘプタフルオロペンタン酸;3,3-ジフルオロプロパ-2-エン酸等の一般式R1-CR’2-C(O)O-、又は、一般式R2=CR’-C(O)O-(式中、R1、及びR2は、必要に応じて分岐状、環状、及び/又は不飽和の炭素数1~30のパーフルオロアルキル基を示し、R’は、同一又は異なって、水素原子、炭素数1~20のアルキル基、及びアリール基からなる群から選択され、必要に応じてヘテロ原子を含有するものを示す。)と、第4級アンモニウムカチオン、又は第4級ホスホニウムカチオンからなる化合物。
本実施形態のブロックポリイソシアネートは、本実施形態のポリイソシアネートが有するイソシアネート基の少なくとも一部が、マロン酸ジエステルを含有する活性メチレン系化合物でブロックされている。
本実施形態のブロックポリイソシアネート組成物は、ブロックポリイソシアネート組成物自体の結晶性や、ブロックポリイソシアネート組成物を用いた一液型コーティング組成物における貯蔵安定性をより改良するために、1価アルコールをさらに含んでもよい。
本実施形態のブロックポリイソシアネート組成物の製造方法は、例えば、本実施形態のポリイソシアネートと、マロン酸ジエステルを含有する活性メチレン系化合物と、を反応させて、ブロックポリイソシアネートを得る反応工程(ブロック化反応)と、得られたブロックポリイソシアネートと各種添加剤等を混合し、ブロックポリイソシアネート組成物を得る混合工程とを有する。
本実施形態の一液型コーティング組成物は、上述したブロックポリイソシアネート組成物と、多価活性水素化合物とを含む。
本実施形態の多価活性水素化合物としては、特に限定されないが、例えば、ポリオール、ポリアミン及びアルカノールアミンからなる群より選ばれる少なくとも1種を含むことが好ましく、その中でも、ポリオールを含むことがより好ましい。
(1)ジグリセリン、ジトリメチロールプロパン、ペンタエリスリトール、ジペンタエリスリトール等、
(2)エリスリトール、D-トレイトール、L-アラビニトール、リビトール、キシリトール、ソルビトール、マンニトール、ガラクチトール、ラムニトール等の糖アルコール系化合物、
(3)アラビノース、リボース、キシロース、グルコース、マンノース、ガラクトース、フルクトース、ソルボース、ラムノース、フコース、リボデソース等の単糖類、
(4)トレハロース、ショ糖、マルトース、セロビオース、ゲンチオビオース、ラクトース、メリビオース等の二糖類、
(5)ラフィノース、ゲンチアノース、メレチトースなどの三糖類、
(6)スタキオース等の四糖類
が挙げられる。
本実施形態の塗膜は、上述した一液型コーティング組成物により形成される。また、本実施形態の塗装物品は、本実施形態の塗膜を備える。特に限定されないが、例えば、本実施形態の一液型コーティング組成物を、ロール塗装、カーテンフロー塗装、スプレー塗装、静電塗装、ベル塗装等により塗装後、焼付け工程を経ることにより、塗膜を形成することができる。この塗膜は、焼付け工程を経て、架橋塗膜が形成されていることが好ましい。一液型コーティング組成物の硬化後の架橋塗膜は、ブロック化反応前のポリイソアネート由来のウレタン結合だけでなく、ブロックイソシアネート基由来のアミド結合、エステル結合等の極性基を有することができる。そのため、本実施形態の一液型コーティング組成物から形成された架橋塗膜は、一般的なウレタン架橋塗膜の特徴である耐薬品性、耐熱性、耐水性等に加え、積層塗装又はリコートを行う場合に、層間での水素結合等が可能となり、層間の密着性に優れる傾向にある。焼付け工程後、架橋構造が完全に形成されていない塗膜においても、上記の極性基を有するため、積層塗装又はリコート時に密着性に優れる点が架橋塗膜と同様に優れている。
本実施形態の複合塗膜は、上述した一液型コーティング組成物により形成された第1の塗膜と、第1の塗膜上に第2の塗膜と、を備える。本実施形態の複合塗膜は、第1の塗膜とその上層塗膜である第2の塗膜との密着性に優れる。
ポリイソシアネートのNCO含有量(イソシアネート含有量、質量%)は次のように測定した。三角フラスコに製造例で製造したポリイソシアネート1~3gを精秤(Wg)、トルエン20mLを添加し、ポリイソシアネートを完全に溶解した。その後、2規定のジ-n-ブチルアミンのトルエン溶液10mLを添加し、完全に混合後、15分間室温放置した。さらに、この溶液にイソプロピルアルコール70mLを加えて、完全混合した。この溶液を1規定塩酸溶液(ファクターF)で、指示薬を用いて滴定して、滴定値V2mLを得た。同様の滴定操作についてポリイソシアネートを用いないで行ない、滴定値V1mLを得た。得られた滴定値V2mLおよび滴定値V1mLから、ポリイソシアネートのNCO含有量を、下記式に基づいて算出した。
NCO含有量=(V1-V2)×F×42/(W×1000)×100
ポリイソシアネートの粘度は、E型粘度計(商品名:RE-85R、東機産業社製)を用いて25℃で測定した。測定に際しては、標準ローター(1°34’×R24)を用いた。回転数は、以下の通りで設定した。
100r.p.m.( 128mPa.s未満の場合)
50r.p.m.( 128mPa.s以上 256mPa.s未満の場合)
20r.p.m.( 256mPa.s以上 640mPa.s未満の場合)
10r.p.m.( 640mPa.s以上 1280mPa.s未満の場合)
5r.p.m.( 1280mPa.s以上 2560mPa.s未満の場合)
2.5r.p.m.( 2560mPa.s以上 5120mPa.s未満の場合)
1.0r.p.m.( 5120mPa.s以上10240mPa.s未満の場合)
0.5r.p.m.(10240mPa.s以上20480mPa.s未満の場合)
ポリイソシアネートの数平均分子量は、下記の装置を用いたゲルパーミエーションクロマトグラフ(以下、「GPC」と略す。)測定によるポリスチレン基準の数平均分子量で求めた。
装置:東ソー社製「HLC-8120GPC」(商品名)
カラム:東ソー社製「TSKgel SuperH1000」(商品名)×1本
「TSKgel SuperH2000」(商品名)×1本
「TSKgel SuperH3000」(商品名)×1本
キャリアー:テトラハイドロフラン
検出方法:示差屈折計
ブロックポリイソシアネート組成物における数平均分子量1500以下である成分の含有量は、上記(物性3)数平均分子量で使用した装置、カラム、検量線を使用し、ブロックポリイソシアネート組成物を測定して算出した。
ポリイソシアネートのイソシアネート基平均数は、(物性1)NCO含有量と(物性3)数平均分子量とから下記式に基づいて算出した。
イソシアネート基平均数=数平均分子量×NCO含有量/100/42
また、ブロックポリイソシアネート組成物のイソシアネート基平均数は、下記(物性7)有効NCO含有量と(物性4)で測定したブロックポリイソシアネートの数平均分子量とから下記式に基づいて算出した。
イソシアネート基平均数=数平均分子量×有効NCO含有量/100/42
ポリイソシアネートのジイソシアネート質量濃度は、次のように求めた。最初に、20mLサンプル瓶をデジタル天秤に乗せ試料を約1g精秤した。次に、ニトロベンゼン(内部標準液)を0.03~0.04g加え精秤した。最後に、酢酸エチルを約9mL加えた後、蓋をしっかりして十分に混合し、サンプルを調製した。調製したサンプルを以下の条件で、ガスクロマトグラフィー分析し、定量した。
装置:SHIMADZU社製「GC-8A」
カラム:信和化工社製「Silicone OV-17」
カラムオーブン温度:120℃
インジェクション/ディテクター温度:160℃
ブロックポリイソシアネート組成物の有効NCO含有量は、次のように求めた。ここでの有効NCO含有量(質量%)とは、ブロック化反応後のブロックポリイソシアネート組成物中に存在する架橋反応に関与しうるブロックイソシアネート基量を定量化するものであって、イソシアネート基の質量%として表し、下記式により算出した。
{(ブロックポリイソシアネート組成物の固形分(質量%))×(反応に使用したポリイソシアネート質量×ポリイソシアネートのNCO含有量(質量%))}/(ブロック化反応後のブロックポリイソシアネート組成物の樹脂質量)
なお、試料が溶剤等で希釈されている場合は、希釈された状態での値を記載した。
底直径38mmのアルミ皿を精秤後、実施例又は比較例のブロックポリイソシアネート組成物をアルミ皿上に約1g乗せた状態で精秤し(W1)、ブロックポリイソシアネート組成物を均一厚さに調整後、105℃のオーブンで1時間保持した。アルミ皿が室温になった後、アルミ皿に残存したブロックポリイソシアネート組成物を精秤した(W2)。
固形分濃度=W2/W1×100
Bruker社製Biospin Avance600(商品名)を用いた、13C-NMRの測定により、イミノオキサジアジンジオン基、ウレトジオン基、アロファネート基、及びイソシアヌレート基のモル比を求めた。
具体的な測定条件は以下の通りであった。
13C-NMR装置:AVANCE600(ブルカー社製)
クライオプローブ(ブルカー社製)
Cryo Probe
CPDUL
600S3-C/H-D-05Z
共鳴周波数:150MHz
濃度:60wt/vol%
シフト基準:CDCl3(77ppm)
積算回数:10000回
パルスプログラム:zgpg30(プロトン完全デカップリング法、待ち時間2sec)
以下のシグナルの積分値を、測定している炭素の数で除し、その値から各モル比を求めた。
イミノオキサジアジンジオン基のモル量(モル%、「B」で示す。):144.6ppm付近:積分値÷1
イソシアヌレート基のモル量(モル%、「A」で示す。):148.6ppm付近:積分値÷3
ウレトジオン基のモル量(モル%、「C」で示す。):157.5ppm付近:積分値÷2
アロファネート基のモル量(モル%、「D」で示す。):154ppm付近:積分値÷1
求めた各モル比は、以下の4種であり、それぞれについてポリイソシアネート及びブロックポリイソシアネート組成物を試料とした値を求めた。
モル比:(B+C+D)/(A+B+C+D)
モル比: B/(A+B+C+D)
モル比: C/(A+B+C+D)
モル比: D/(A+B+C+D)
「Setalux1152」(アクリルポリオール、Nuplex Resins社製の商品名、水酸基価138mgKOH/樹脂g、固形分濃度51質量%)とブロックポリイソシアネート組成物とを、NCO/OH=1.0になるように配合し、酢酸ブチルでフォードカップNo.4で20秒/23℃に調整し、α塗料溶液を得た。得られたα塗料溶液をPP板に、エアースプレーガンで乾燥膜厚40μmになるように塗装し、23℃で30分間乾燥後、90℃で20分間焼付けし、硬化塗膜を得た。得られた硬化塗膜を焼付け後、20℃で1時間放置し、PP板から剥がし、アセトン中に20℃で24時間浸漬後、未溶解部質量の浸漬前質量に対する値(ゲル分率)を計算し、下記の基準で低温硬化性を評価した。
◎:ゲル分率が90%以上
○:ゲル分率が80%以上90%未満
△:ゲル分率が70%以上80%未満
×:ゲル分率が70%未満
上記(評価1)で得られたα塗料溶液を、軟鋼板に、エアースプレーガンで乾燥膜厚40μmになるように塗装し、23℃で30分間乾燥後、90℃で20分間焼付けし、α塗膜層1を得た。α塗膜層1の軟鋼板との密着性試験をJIS K5600-5-6に準じて行なった。その結果、一部の浮き等も含め、剥がれは観察されなかった。
◎:剥離塗膜、浮き無し
○:カット部に一部浮きあり
△:半分未満の剥離塗膜あり
×:半分以上の剥離塗膜あり
上記(評価1)で得られたα塗料溶液を、ガラス板に、エアースプレーガンで乾燥膜厚80μmになるように塗装した。23℃で30分間乾燥し、90℃で20分間焼き付けた後、冷却した。目視で観測し、下記基準でポリオールとの相溶性を評価した。
○:透明なもの
△:微かに濁りが見られるもの
×:濁りの程度が強いもの
「Setalux1903」(アクリルポリオール、NuplexResins社製、水酸基4.5質量%/樹脂g、固形分75質量%)とブロックポリイソシアネート組成物を、NCO/OH=1.0になるように配合し、酢酸ブチルでフォードカップNo.4で20秒/23℃に調整し、β塗料溶液を得た。得られたβ塗料溶液をガラス板に、エアースプレーガンで乾燥膜厚40μmになるように塗装し、温度23℃にて30分間乾燥後、140℃で20分間焼付けし、硬化塗膜を得た。得られた塗膜の塗膜硬度を、以下の装置を使用して、測定し、下記基準で評価した。
使用した装置:微小硬度計FM-700(株式会社フューチュアテック社製)
圧子:ヌープ硬度用菱形ダイアモンド圧子
○:ヌープ硬度が10以上の場合
△:ヌープ硬度が9以上10未満の場合
×:ヌープ硬度が9未満の場合
撹拌機、温度計、還流冷却管、窒素吹き込み管、滴下ロートを取り付けた4ツ口フラスコ内を窒素雰囲気にし、HDI100部を仕込み、撹拌下反応器内温度を60℃に保持し、テトラメチルアンモニウムフルオリド四水和物の5%n-ブタノール溶液を触媒成分として、0.22部添加した。その後、内温を70℃以下で保持し、反応液のNCO含有率が39.1質量%になった時点で、リン酸ジブチルを0.066部添加し反応を停止した。反応液を濾過した後、薄膜蒸発缶を用いて未反応のHDIを除去し、NCO含有量22.8質量%、25℃における粘度が2100mPa.s、数平均分子量610、イソシアネート基平均数3.3、HDIモノマー質量濃度0.3質量%のポリイソシアネートP-1を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
撹拌機、温度計、還流冷却管、窒素吹き込み管、滴下ロートを取り付けた4ツ口フラスコ内を窒素雰囲気にし、HDI100部を仕込み、撹拌下反応器内温度を60℃に保持し、テトラブチルホスホニウム水素ジフルオリドの70%イソプロパノール溶液を触媒成分として、0.05部添加した。その後、内温を70℃以下で保持し、反応液のNCO含有率が43.3質量%になった時点で、p-トルエンスルホン酸の40%イソプロパノール溶液を0.0575部添加し反応を停止した。反応液を濾過した後、薄膜蒸発缶を用いて未反応のHDIを除去し、NCO含有量23.4質量%、25℃における粘度が640mPa.s、数平均分子量570、イソシアネート基平均数3.2、HDIモノマー質量濃度0.3質量%のポリイソシアネートP-2を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
撹拌機、温度計、還流冷却管、窒素吹き込み管、滴下ロートを取り付けた4ツ口フラスコ内を窒素雰囲気にし、HDI100部を仕込み、撹拌下反応器内温度を60℃に保持し、テトラブチルホスホニウムピリジノトリアゾレートの58%1-メトキシー2-プロパノール溶液を触媒成分として、0.0948部添加した。その後、内温を65℃以下で保持し、反応液のNCO含有率が42.2質量%になった時点で、リン酸ジブチルを0.033部添加し、反応を停止した。反応液を濾過した後、薄膜蒸発缶を用いて未反応のHDIを除去し、NCO含有量21.4質量%、25℃における粘度が340mPa.s、数平均分子量490、イソシアネート基平均数2.5、HDIモノマー質量濃度0.3質量%のポリイソシアネートP-3を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
撹拌機、温度計、還流冷却管、窒素吹き込み管、滴下ロートを取り付けた4ツ口フラスコ内を窒素雰囲気にし、HDI100部を仕込み、撹拌下反応器内温度を60℃に保持し、テトラブチルアンモニウムアセテートの10%2-エチル-1-ヘキサノール溶液を触媒成分として、0.15部添加し、反応液のNCO含有率が43.8質量%になった時点で燐酸の85%水溶液を0.0235部添加し反応を停止した。反応液をろ過した後、薄膜蒸発缶を用いて未反応のHDIを除去し、NCO含有量23.0質量%、25℃における粘度が1200mPa.s、数平均分子量580、イソシアネート基平均数3.2、HDIモノマー質量濃度0.2質量%のポリイソシアネートP-4を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
テトラブチルアンモニウムアセテートの0.2%2-エチル-1-ヘキサノール溶液を触媒成分として、2.5部添加し、反応液のNCO含有率が41.8質量%になった時点で燐酸の85%水溶液を0.0079部添加し反応を停止した以外は、製造例4と同様に反応を実施した。反応液をろ過した後、薄膜蒸発缶を用いて未反応のHDIを除去し、NCO含有量20.8質量%、25℃における粘度が470mPa.s、数平均分子量560、イソシアネート基平均数2.8、HDIモノマー質量濃度0.2質量%のポリイソシアネートP-5を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
反応液のNCO含有率が38.9質量%になった時点で燐酸の85%水溶液を0.0235部添加し反応を停止した以外は、製造例4と同様に反応を実施した。反応液をろ過した後、薄膜蒸発缶を用いて未反応のHDIを除去し、NCO含有量22.3質量%、25℃における粘度が2700mPa.s、数平均分子量640、イソシアネート基平均数3.4、HDIモノマー質量濃度0.3質量%のポリイソシアネートP-6を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
撹拌機、温度計、還流冷却管、窒素吹き込み管、滴下ロートを取り付けた4ツ口フラスコ内を窒素雰囲気にし、HDIを1000質量部、イソブタノールを0.9質量部、2-エチル-1-ヘキサノールを30質量部仕込み、撹拌下、反応器内温度を80℃で1時間保持した。その後、イソシアヌレート化反応触媒であるテトラメチルアンモニウムカプリエートを0.05質量部添加し、イソシアヌレート化反応及びアロファネート化反応を行ない、反応液屈折率変化が0.0085になった時点で燐酸85%水溶液を0.09質量部添加し反応を停止した。その後、反応液を90℃に昇温させて、90℃で1時間保持して触媒を完全に失活させた。冷却した反応液をろ過後、薄膜蒸発缶を用いて未反応のHDIを除去した。NCO含有量20.4質量%、25℃における粘度が340mPa.s、数平均分子量540、イソシアネート基平均数2.6、未反応HDI質量濃度0.1質量%のポリイソシアネートP-7を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
添加する2-エチル-1-ヘキサノールを100質量部、反応液屈折率変化を0.014とした以外は、製造例7と同様に反応を実施した。NCO含有量17.6質量%、25℃における粘度が420mPa.s、数平均分子量550、イソシアネート基平均数2.3、未反応HDI質量濃度0.1質量%のポリイソシアネートP-8を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
撹拌機、温度計、還流冷却管、窒素吹き込み管、滴下ロートを取り付けた4ツ口フラスコ内を窒素雰囲気にし、HDIを100質量部仕込み、撹拌下、反応器内温度を60℃に保持した。そこに、ウレトジオン化反応触媒であるトリ-n-ブチルホスフィン(Cytop(商標)340、Cytec)を1.5質量部添加し、ウレトジオン化反応及びイソシアヌレート化反応を行ない、反応液屈折率測定による転化率が40%になった時点でメチル-p-トルエンスルホネート1.33質量部を添加し反応を停止した。冷却した反応液をろ過後、薄膜蒸発缶を用いて未反応のHDIを除去した。NCO含有量22.1質量%、25℃における粘度が150mPa.s、数平均分子量440、イソシアネート基平均数2.3、未反応HDI質量濃度0.3質量%のポリイソシアネートP-9を得た。得られたポリイソシアネートについて、13C-NMRの測定から求めた各モル比を表1に記載した。
撹拌機、温度計、還流冷却管、窒素吹き込み管を取り付けた4ツ口フラスコ内を窒素雰囲気にし、ポリイソシアネートP-1を100部、マロン酸ジエチル82.2部、アセト酢酸エチル7.4部、酢酸n-ブチル40部を仕込み、28%ナトリウムメチラート溶液0.8部を添加し、60℃で6時間反応した。その後、n-ブタノール79部を添加し2時間その温度で撹拌を続けた。それに燐酸モノ(2-エチルヘキシル)0.8部を添加し、樹脂分60質量%、有効NCO%7.4%のブロックポリイソシアネート組成物を得た。得られた各物性の結果を表2に示す。別途、得られたブロックポリイソシアネート組成物をナスフラスコに移し、エバポレーターを用いて、60℃、10hPaの減圧度で、60分間減圧留去を行い、大部分の溶剤を取り除いた後、13C-NMR測定を実施し、各モル比について得られた結果を表2に示す。引き続き、低温硬化性、上層塗膜との密着性、ポリオールとの相溶性、塗膜硬度を評価した。得られた結果を表2に示す。
攪拌器、温度計、還流冷却管、窒素吹き込み管を取り付けた4ツ口フラスコ内を窒素雰囲気にし、ポリイソシアネートP-1を100部、マロン酸ジエチル91.3部、
酢酸n-ブチル80.0部を仕込み、28%ナトリウムメチラート溶液0.8部を添加し、60℃で6時間反応した。赤外スペクトルを測定した結果、イソシアネート基の消失を確認し、燐酸モノ(2-エチルヘキシル)0.8部を添加した。
引き続き、ジイソプロピルアミン54.9部を添加し、反応液温度70℃で5時間保持した。この反応液をガスクロマトグラフィーで分析し、ジシソプロピルアミンの反応率が70%であることを確認した。その後、n-ブタノールを19.0部添加し、樹脂分60質量%、有効NCO%6.6%のブロックポリイソシアネート組成物を得た。得られた各物性の結果を表2に示す。別途、得られたブロックポリイソシアネート組成物をナスフラスコに移し、エバポレーターを用いて、60℃、10hPaの減圧度で、60分間減圧留去を行い、大部分の溶剤を取り除いた後、13C-NMR測定を実施し、各モル比について得られた結果を表2に示す。引き続き、低温硬化性、上層塗膜との密着性、ポリオールとの相溶性、塗膜硬度を評価した。得られた結果を表2に示す。
表2で示した配合とする以外は、実施例1と同様にして、ブロックポリイソシアネート組成物を得た。得られたブロックポリイソシアネート組成物の物性及び評価の結果を表2及び表3に示す。
Claims (13)
- 脂肪族ジイソシアネート及び脂環式ジイソシアネートからなる群より選択される1種又は2種以上のジイソシアネートから得られるポリイソシアネートが有するイソシアネート基の少なくとも一部が、マロン酸ジエステルを含有する活性メチレン系化合物でブロックされているブロックポリイソシアネートを含み、
下記式(1)で表される特定モル比が、0.05以上0.60以下である、ブロックポリイソシアネート組成物。
特定モル比=(B+C+D)/(A+B+C+D) (1)
(式(1)中、Aは、下記式(I)で表されるイソシアヌレート基の含有量(モル%)を示し、Bは、下記式(II)で表されるイミノオキサジアジンジオン基の含有量(モル%)を示し、Cは、下記式(III)で表されるウレトジオン基の含有量(モル%)を示し、Dは、下記式(IV)で表されるアロファネート基の含有量(モル%)を示す。)
- 前記ブロックポリイソシアネート組成物は、該ブロックポリイソシアネート組成物の総量に対して、数平均分子量が1500以下である成分を、55質量%以上80質量%以下含む、請求項1に記載のブロックポリイソシアネート組成物。
- 前記マロン酸ジエステル化合物は、マロン酸ジエチルを含む、請求項1又は2に記載のブロックポリイソシアネート組成物。
- 前記マロン酸ジエステル化合物は、マロン酸ジイソプロピルを含む、請求項1~3のいずれか一項に記載のブロックポリイソシアネート組成物。
- 前記活性メチレン系化合物は、βケトエステル化合物をさらに含有する、請求項1~4のいずれか一項に記載のブロックポリイソシアネート組成物。
- 前記βケトエステル化合物は、アセト酢酸エチルを含む、請求項5に記載のブロックポリイソシアネート組成物。
- 1価アルコールを、さらに含む、請求項1~6のいずれか一項に記載のブロックポリイソシアネート組成物。
- 前記ジイソシアネートは、ヘキサメチレンジイソシアネートを含む、請求項1~7のいずれか一項に記載のブロックポリイソシアネート組成物。
- 請求項1~8のいずれか一項に記載のブロックポリイソシアネート組成物と、多価活性水素化合物と、を含む、一液型コーティング組成物。
- 請求項9に記載の一液型コーティング組成物により形成された、塗膜。
- 請求項10に記載の塗膜を備える、塗装物品。
- 請求項9に記載の一液型コーティング組成物を含む第1の塗料溶液を塗装し、第1の塗膜を形成する工程と、前記第1の塗膜上に第2の塗料溶液を塗装し、第2の塗膜を形成する工程と、を含む、複合塗膜の製造方法。
- 請求項9に記載の一液型コーティング組成物により形成された第1の塗膜と、前記第1の塗膜上に第2の塗膜と、を備える、複合塗膜。
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CN201780018508.6A CN109071769B (zh) | 2016-03-29 | 2017-03-07 | 封端多异氰酸酯组合物、单液型涂覆组合物、涂膜、及涂装物品 |
US16/086,454 US20190100615A1 (en) | 2016-03-29 | 2017-03-07 | Blocked polyisocyanate composition, one-component coating composition, coating film, and coated article |
EP17774104.8A EP3438149B1 (en) | 2016-03-29 | 2017-03-07 | Block polyisocyanate composition, one-part coating composition, coating film, and coated article |
JP2018508879A JP6712311B2 (ja) | 2016-03-29 | 2017-03-07 | ブロックポリイソシアネート組成物、一液型コーティング組成物、塗膜、及び塗装物品 |
US16/937,980 US11339244B2 (en) | 2016-03-29 | 2020-07-24 | Blocked polyisocyanate composition, one-component coating composition, coating film, and coated article |
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US16/937,980 Division US11339244B2 (en) | 2016-03-29 | 2020-07-24 | Blocked polyisocyanate composition, one-component coating composition, coating film, and coated article |
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Cited By (3)
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JP2016053127A (ja) * | 2014-09-04 | 2016-04-14 | 旭化成ケミカルズ株式会社 | ポリイソシアネート組成物、塗料組成物及び塗膜 |
CN111247189A (zh) * | 2017-11-21 | 2020-06-05 | 三井化学株式会社 | 封端异氰酸酯组合物及涂覆剂 |
JPWO2020090955A1 (ja) * | 2018-10-31 | 2021-06-03 | 旭化成株式会社 | 塗膜 |
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EP3712188B1 (en) * | 2019-03-11 | 2022-05-11 | Asahi Kasei Kabushiki Kaisha | Polyisocyanate composition, blocked polyisocyanate composition, coating material composition, and coating film |
TW202206519A (zh) * | 2019-06-27 | 2022-02-16 | 日商旭化成股份有限公司 | 聚異氰酸酯組合物、薄膜形成用組合物、薄膜、薄膜積層體、接著性樹脂組合物及接著性樹脂硬化物、塗料用組合物及塗料硬化物 |
EP4008757A4 (en) * | 2019-08-01 | 2022-08-31 | Asahi Kasei Kabushiki Kaisha | BLOCK POLYISOCYANANE COMPOSITION, ONE-COMPONENT COATING COMPOSITION, COATING FILM AND COATED ARTICLE |
CN112300364B (zh) * | 2019-08-02 | 2022-06-03 | 旭化成株式会社 | 封端多异氰酸酯组合物、树脂组合物、树脂膜和层叠体 |
CN111072917B (zh) * | 2020-01-02 | 2021-06-29 | 万华化学集团股份有限公司 | 一种存储稳定的多异氰酸酯组合物及制备方法 |
WO2022070770A1 (ja) * | 2020-09-30 | 2022-04-07 | 旭化成株式会社 | ポリウレタン系硬化剤及びその使用 |
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CN109071769A (zh) | 2018-12-21 |
US11339244B2 (en) | 2022-05-24 |
EP3438149B1 (en) | 2021-06-09 |
US20200354508A1 (en) | 2020-11-12 |
EP3438149A1 (en) | 2019-02-06 |
US20190100615A1 (en) | 2019-04-04 |
CN109071769B (zh) | 2021-04-02 |
JPWO2017169559A1 (ja) | 2018-12-27 |
JP6712311B2 (ja) | 2020-06-17 |
EP3438149A4 (en) | 2019-04-24 |
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