WO2022071362A1 - 水分散型ポリイソシアネート、水性ポリウレタン樹脂組成物および物品 - Google Patents
水分散型ポリイソシアネート、水性ポリウレタン樹脂組成物および物品 Download PDFInfo
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- WO2022071362A1 WO2022071362A1 PCT/JP2021/035761 JP2021035761W WO2022071362A1 WO 2022071362 A1 WO2022071362 A1 WO 2022071362A1 JP 2021035761 W JP2021035761 W JP 2021035761W WO 2022071362 A1 WO2022071362 A1 WO 2022071362A1
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- WIPO (PCT)
- Prior art keywords
- polyisocyanate
- mass
- water
- active hydrogen
- dispersed
- Prior art date
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- 239000005056 polyisocyanate Substances 0.000 title claims abstract description 320
- 229920001228 polyisocyanate Polymers 0.000 title claims abstract description 320
- 229920005749 polyurethane resin Polymers 0.000 title claims description 40
- 239000011342 resin composition Substances 0.000 title claims description 32
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000001257 hydrogen Substances 0.000 claims abstract description 59
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 59
- -1 hydrogen compound Chemical class 0.000 claims abstract description 49
- DFPJRUKWEPYFJT-UHFFFAOYSA-N 1,5-diisocyanatopentane Chemical compound O=C=NCCCCCN=C=O DFPJRUKWEPYFJT-UHFFFAOYSA-N 0.000 claims abstract description 45
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 45
- 125000001174 sulfone group Chemical group 0.000 claims abstract description 42
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 32
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical class OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 50
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 45
- 239000000178 monomer Substances 0.000 claims description 45
- 150000001875 compounds Chemical class 0.000 claims description 43
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 33
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000007795 chemical reaction product Substances 0.000 claims description 18
- 239000002981 blocking agent Substances 0.000 claims description 13
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 59
- 239000003795 chemical substances by application Substances 0.000 description 37
- 239000006185 dispersion Substances 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical class NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 24
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 22
- 238000000034 method Methods 0.000 description 21
- 238000002156 mixing Methods 0.000 description 20
- 239000003054 catalyst Substances 0.000 description 19
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- 239000000243 solution Substances 0.000 description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 15
- 239000012948 isocyanate Substances 0.000 description 15
- 150000002513 isocyanates Chemical class 0.000 description 15
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 14
- 239000002253 acid Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 150000002483 hydrogen compounds Chemical class 0.000 description 11
- 229920005862 polyol Polymers 0.000 description 11
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- 230000015572 biosynthetic process Effects 0.000 description 10
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- 150000003839 salts Chemical class 0.000 description 9
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- 230000035484 reaction time Effects 0.000 description 8
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- 238000002360 preparation method Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 150000002009 diols Chemical class 0.000 description 6
- 238000005227 gel permeation chromatography Methods 0.000 description 6
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- 239000000654 additive Substances 0.000 description 5
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- 238000013329 compounding Methods 0.000 description 5
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 description 4
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
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- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 150000007530 organic bases Chemical class 0.000 description 4
- 150000003512 tertiary amines Chemical class 0.000 description 4
- XSCLFFBWRKTMTE-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)cyclohexane Chemical compound O=C=NCC1CCCC(CN=C=O)C1 XSCLFFBWRKTMTE-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 3
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- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 3
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- 239000007810 chemical reaction solvent Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 150000007529 inorganic bases Chemical class 0.000 description 3
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 3
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- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 3
- 125000005270 trialkylamine group Chemical group 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 description 2
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- 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
- C08G18/80—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
- 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
Definitions
- the present invention relates to a water-dispersible polyisocyanate, an aqueous polyurethane resin composition and an article.
- Polyurethane resin is widely used in various industrial fields.
- the polyurethane resin contains a reaction product of a polyisocyanate component and a polyol component.
- the polyisocyanate component is prepared, for example, as an organic solvent solution.
- a polyisocyanate component in order to improve environmental friendliness and workability, it has been required to prepare a polyisocyanate component as an aqueous dispersion. That is, a polyisocyanate component that can be dispersed in water is required.
- polyisocyanate components that can be dispersed in water. That is, a polyisocyanate mixture obtained by reacting isocyanurate of pentamethylene 1,5-diisocyanate with 3- (cyclohexylamino) propanesulfonic acid (see, for example, Patent Document 1 (Example 5)).
- the above polyisocyanate mixture is water-dispersible due to the sulfone group of 3- (cyclohexylamino) propanesulfonic acid.
- a polyurethane resin can be obtained by reacting the above-mentioned polyisocyanate mixture with the polyol component. Such a polyisocyanate mixture and a polyurethane resin are excellent in curability.
- the present invention is a water-dispersible polyisocyanate, an aqueous polyurethane resin composition and an article having excellent curability, water dispersibility and pot life.
- the present invention [1] is an aqueous dispersion type polyisocyanate containing an isocyanate group and a sulfone group, which contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component, and the polyisocyanate component is pentamethylene diisocyanate.
- the first polyisocyanate containing the above and the second polyisocyanate containing a polyisocyanate having 6 or more carbon atoms are included, and the hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound, and the content ratio of the first polyisocyanate is contained.
- it contains an aqueous dispersion type polyisocyanate which is 40% by mass or more and 90% by mass or less with respect to the total amount of the first polyisocyanate and the second polyisocyanate.
- the first polyisocyanate contains an isocyanurate derivative of pentamethylene diisocyanate, and the content ratio of the isocyanurate derivative of pentamethylene diisocyanate is 60% by mass with respect to the total amount of the first polyisocyanate.
- the above-mentioned water-dispersed polyisocyanate according to the above [1] is contained.
- the present invention [3] contains the water-dispersed polyisocyanate according to the above [2], wherein the isocyanurate derivative of pentamethylene diisocyanate contains a reaction product of a pentamethylene diisocyanate monomer and an alcohol. ..
- the present invention [4] contains the water-dispersed polyisocyanate according to the above [3], wherein the alcohol contains monool.
- the second polyisocyanate contains an isocyanurate derivative of a polyisocyanate having 6 or more carbon atoms, and the content ratio of the isocyanurate derivative of the polyisocyanate having 6 or more carbon atoms is the same as that of the second polyisocyanate.
- the water-dispersed polyisocyanate according to item 1 is contained.
- the present invention comprises the water-dispersed polyisocyanate according to any one of [1] to [6] above, wherein the isocyanate group of the water-dispersed polyisocyanate is blocked by a blocking agent.
- the present invention [8] includes an aqueous polyurethane resin composition containing the water-dispersed polyisocyanate according to any one of the above [1] to [7] and an active hydrogen group-containing compound.
- the present invention includes an object to be coated and a polyurethane layer arranged on the surface of the object to be coated, and the polyurethane layer contains a cured product of the aqueous polyurethane resin composition according to the above [8]. , Contains goods.
- the water-dispersed polyisocyanate of the present invention contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component, and the polyisocyanate component is a first polyisocyanate containing pentamethylene diisocyanate and a polyisocyanate having 6 or more carbon atoms.
- the hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound.
- the content ratio of the first polyisocyanate is 40% by mass or more and 90% by mass or less with respect to the total amount of the first polyisocyanate and the second polyisocyanate. Therefore, the water-dispersible polyisocyanate of the present invention has excellent curability, water dispersibility and pot life.
- the aqueous polyurethane resin composition of the present invention contains the above-mentioned water-dispersible polyisocyanate. Therefore, the aqueous polyurethane resin composition of the present invention has excellent curability, water dispersibility and pot life.
- the article of the present invention contains the cured coating film of the above-mentioned aqueous polyurethane resin composition, it has excellent productivity.
- the water-dispersed polyisocyanate of the present invention contains an isocyanate group and a sulfone group.
- the water-dispersible polyisocyanate is a water-dispersible polyisocyanate.
- the water-dispersed polyisocyanate contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component.
- the polyisocyanate component contains a first polyisocyanate and a second polyisocyanate.
- the first polyisocyanate contains pentamethylene diisocyanate.
- the first polyisocyanate is preferably composed of pentamethylene diisocyanate.
- Pentamethylene diisocyanate represents a pentamethylene diisocyanate monomer and / or a derivative thereof.
- the derivative of the pentamethylene diisocyanate monomer is referred to as a pentamethylene diisocyanate derivative.
- Examples of the pentamethylene diisocyanate monomer include 1,5-pentamethylene diisocyanate (1,5-pentane diisocyanate) and structural isomers thereof.
- Examples of the structural isomers include 1,4-pentamethylene diisocyanate (1,4-pentane diisocyanate), 1,3-pentamethylene diisocyanate (1,3-pentane diisocyanate), and 1,2-pentamethylene diisocyanate (1,2-pentanediisocyanate). 1,2-Pentane diisocyanate).
- These pentamethylene diisocyanate monomers can be used alone or in combination of two or more.
- the pentamethylene diisocyanate monomer is preferably 1,5-pentamethylene diisocyanate.
- the pentamethylene diisocyanate monomer can be produced, for example, in accordance with the description of International Publication No. 2012/121291.
- Examples of the pentamethylene diisocyanate derivative include a derivative obtained by modifying a pentamethylene diisocyanate monomer by a known method. More specific examples of the pentamethylene diisocyanate derivative include multimers, allophanate derivatives, polyol derivatives, biuret derivatives, urea derivatives, oxadiazine trione derivatives and carbodiimide derivatives. Examples of the multimer include an isocyanurate derivative and an iminooxadiazinedione derivative. These pentamethylene diisocyanate derivatives can be used alone or in combination of two or more.
- Pentamethylene diisocyanate can be used alone or in combination of two or more.
- the pentamethylene diisocyanate is preferably a pentamethylene diisocyanate derivative, and more preferably an isocyanurate derivative of pentamethylene diisocyanate.
- the first polyisocyanate preferably contains an isocyanurate derivative of pentamethylene diisocyanate.
- Examples of the isocyanurate derivative of pentamethylene diisocyanate include a reaction product of a pentamethylene diisocyanate monomer and an alcohol.
- the isocyanurate derivative of pentamethylene diisocyanate is produced, for example, by the following method. That is, in this method, first, the pentamethylene diisocyanate monomer is reacted with alcohol.
- alcohols examples include monool, diol and triol.
- Examples of monools include linear monohydric alcohols and branched monohydric alcohols.
- linear monohydric alcohol examples include methanol, ethanol, n-propanol, n-butanol, n-pentanol, n-hexanol, n-heptanol, n-octanol, n-nonanol, n-decanol, and n.
- Examples of the branched monohydric alcohol include isopropanol, isobutanol (isobutyl alcohol), sec-butanol, tert-butanol, isopentanol, isohexanol, isoheptanol, isooctanol, and 2-ethylhexane-1-ol.
- diol examples include a linear dihydric alcohol and a branched dihydric alcohol.
- linear divalent alcohol examples include linear alkanediol.
- linear alkanediol examples include ethylene glycol, 1,3-propanediol, 1,4-butanediol (1,4-butylene glycol), 1,5-pentanediol, and 1,6-hexanediol. Examples thereof include 1,4-dihydroxy-2-butene, diethylene glycol, triethylene glycol, and dipropylene glycol. These can be used alone or in combination of two or more.
- Examples of the branched divalent alcohol include branched alkanediol.
- Examples of the branched alkanediol include 1,2-propanediol, 1,3-butanediol, 1,2-butylene glycol, neopentyl glycol, 3-methyl-1,5-pentanediol, 2,2.
- Examples thereof include 2-trimethylpentanediol, 3,3-dimethylolheptan, and 2,6-dimethyl-1-octene-3,8-diol. These can be used alone or in combination of two or more.
- diols can be used alone or in combination of two or more.
- triol examples include glycerin, trimethylolpropane, and triisopropanolamine. These can be used alone or in combination of two or more.
- triols can be used alone or in combination of two or more.
- These alcohols can be used alone or in combination of two or more.
- the carbon number of alcohol is, for example, 1 or more, preferably 2 or more.
- the carbon number of the alcohol is, for example, 50 or less, preferably 40 or less, more preferably 30 or less, still more preferably 20 or less, still more preferably 10 or less, and particularly preferably 4 or less.
- the carbon number of the alcohol is in the above range, the water dispersibility of the isocyanurate derivative of pentamethylene diisocyanate can be improved.
- the alcohol preferably includes monool, more preferably a branched monohydric alcohol, and even more preferably isobutanol.
- the blending ratio of the pentamethylene diisocyanate monomer and alcohol is appropriately set as long as it does not impair the excellent effect of the present invention.
- the equivalent ratio (NCO / OH) of the isocyanate group of the pentamethylene diisocyanate monomer to the hydroxyl group of the alcohol is, for example, more than 1, preferably 5 or more, more preferably 10 or more. be.
- the equivalent ratio (NCO / OH) of the isocyanate group of the pentamethylene diisocyanate monomer to the hydroxyl group of the alcohol is, for example, 1000 or less, preferably 600 or less, more preferably 500 or less, still more preferably 100 or less. Is.
- the amount of alcohol is, for example, 3 parts by mass or more, preferably 3.2 parts by mass or more, and more preferably 3.5 parts by mass or more with respect to 100 parts by mass of the pentamethylene diisocyanate monomer. .. Further, the amount of alcohol is, for example, 50 parts by mass or less, preferably 20 parts by mass or less, and more preferably 10 parts by mass or less with respect to 100 parts by mass of the pentamethylene diisocyanate monomer.
- the reaction conditions between the pentamethylene diisocyanate monomer and the alcohol are appropriately set as long as they do not impair the excellent effects of the present invention. More specifically, the environmental conditions are an inert atmosphere and normal pressure.
- the reaction temperature is, for example, 20 ° C. or higher, preferably 40 ° C. or higher.
- the reaction temperature is, for example, 100 ° C. or lower, preferably 90 ° C. or lower.
- the reaction time is, for example, 0.05 hours or more, preferably 0.2 hours or more.
- the reaction time is, for example, 10 hours or less, preferably 6 hours or less.
- a urethanization catalyst can be added to the pentamethylene diisocyanate monomer and alcohol, if necessary.
- the urethanization catalyst include known amines and known organometallic compounds.
- the blending ratio of the urethanization catalyst is not particularly limited, and is appropriately set according to the purpose and application.
- the urethanization reaction product is subjected to an allophanate formation reaction and an isocyanurate formation reaction.
- an isocyanurate-forming catalyst is mixed with the urethanization reaction product and heated.
- the isocyanurate-forming catalyst is not particularly limited as long as it is a catalyst capable of promoting allophanateization and isocyanurate-forming of isocyanate groups.
- the isocyanurate-forming catalyst include tertiary amines, Mannig bases, Friedel-Crafts catalysts, metal salts of alkylcarboxylic acids, organic metal compounds, halogen-substituted organic phosphorus compounds, tetraalkylammonium hydroxides, and tetraalkylammoniums.
- Examples thereof include organic weakened salts, hydrooxides of trialkylhydroxyalkylammonium, and organic weakened salts of trialkylhydroxyalkylammonium. These can be used alone or in combination of two or more.
- the isocyanurate-forming catalyst is preferably an organic weakened salt of trialkylhydroxyalkylammonium.
- trialkylhydroxyalkylammonium examples include N- (2-hydroxypropyl) -N, N, N-trimethylammonium, trimethylhydroxyethylammonium, triethylhydroxypropylammonium, and triethylhydroxyethylammonium. These can be used alone or in combination of two or more.
- organic weak acid salt examples include acetate, propionate, 2-ethylhexane salt, octylate, capricate, myristate and benzoate. These can be used alone or in combination of two or more.
- the blending ratio of the isocyanurate-forming catalyst is, for example, 0.0005 parts by mass or more, preferably 0.001 parts by mass or more, based on 100 parts by mass of the pentamethylene diisocyanate monomer.
- the mixing ratio of the isocyanurate-forming catalyst is, for example, 0.3 parts by mass or less, preferably 0.05 parts by mass or less, and more preferably 0.03 with respect to 100 parts by mass of the pentamethylene diisocyanate monomer. It is less than the mass part.
- the reaction conditions for the allophanate-forming reaction and the isocyanurate-forming reaction are appropriately set as long as they do not impair the excellent effects of the present invention. More specifically, the environmental conditions are an inert atmosphere and normal pressure.
- the reaction temperature is, for example, 0 ° C. or higher, preferably 20 ° C. or higher.
- the reaction temperature is, for example, 160 ° C. or lower, preferably 120 ° C. or lower.
- the reaction time is, for example, 30 minutes or more, preferably 60 minutes or more.
- the reaction time is, for example, 20 hours or less, preferably 10 hours or less.
- reaction rate isocyanate base conversion rate
- reaction terminator is added to the reaction solution.
- the conversion of the isocyanate group when the reaction is stopped is, for example, 1% by mass or more, preferably 5% by mass or more.
- the conversion of the isocyanate group when the reaction is stopped is, for example, 20% by mass or less, preferably 15% by mass or less.
- the conversion rate of the isocyanate group can be calculated by a known method.
- reaction terminator examples include phosphoric acid, monochloroacetic acid, benzoyl chloride, dodecylbenzenesulfonic acid, o-toluenesulfonic acid, p-toluenesulfonic acid, methyl o-toluenesulfonic acid, methyl p-toluenesulfonic acid, o-.
- reaction terminator examples include toluene sulfonamide and p-toluene sulfonamide. These can be used alone or in combination of two or more.
- the compounding ratio of the reaction terminator is appropriately set according to the purpose and use.
- a catalyst adsorbent can be added instead of the reaction terminator.
- the catalyst adsorbent include chelate resins and ion exchange resins. These can be used alone or in combination of two or more. The blending ratio of the catalyst adsorbent is appropriately set according to the purpose and application.
- a co-catalyst can be blended in each of the above reactions.
- the co-catalyst include known organic phosphite esters.
- the organic phosphite ester monophosphite is preferable, and tris (tridecylic) phosphite is more preferable.
- the blending ratio of the co-catalyst is, for example, 0.01 part by mass or more, preferably 0.02 part by mass or more, and more preferably 0.03 part by mass or more with respect to 100 parts by mass of the pentamethylene diisocyanate monomer. be.
- the mixing ratio of the co-catalyst is, for example, 0.2 parts by mass or less, preferably 0.15 parts by mass or less, and more preferably 0.1 parts by mass with respect to 100 parts by mass of the pentamethylene diisocyanate monomer. It is as follows.
- reaction stabilizer examples include known hindered phenolic antioxidants. Preferred examples thereof include 2,6-di (tert-butyl) -4-methylphenol (BHT).
- the mixing ratio of the reaction stabilizer is, for example, 0.01 part by mass or more, preferably 0.05 part by mass or more with respect to 100 parts by mass of the pentamethylene diisocyanate monomer.
- the mixing ratio of the reaction stabilizer is, for example, 1.0 part by mass or less, preferably 0.10 part by mass or less, based on 100 parts by mass of the pentamethylene diisocyanate monomer.
- reaction solution can be purified. Purification methods include, for example, distillation and extraction. Purification removes the unreacted pentamethylene diisocyanate monomer from the reaction solution. Further, the urethanization catalyst, the isocyanurate-forming catalyst, the catalyst deactivating agent, the co-catalyst, the reaction stabilizer and / or the reaction solvent are removed together with the pentamethylene diisocyanate monomer.
- the pentamethylene diisocyanate monomer is isocyanurate-modified.
- an isocyanurate derivative of pentamethylene diisocyanate is obtained as a reaction product.
- the reaction product is then used as the first polyisocyanate.
- the content ratio of the isocyanurate derivative of pentamethylene diisocyanate is appropriately set according to the purpose and use. More specifically, the content ratio of the isocyanurate derivative of pentamethylene diisocyanate is, for example, 10% by mass or more, preferably 20% by mass or more, more preferably 25% by mass, based on the total amount of the first polyisocyanate.
- the above is more preferably 50% by mass or more, further preferably 60% by mass or more, still more preferably 70% by mass or more, and particularly preferably 80% by mass or more.
- the content ratio of the isocyanurate derivative of pentamethylene diisocyanate is, for example, 100% by mass or less with respect to the total amount of the first polyisocyanate. That is, the first polyisocyanate can be made of an isocyanurate derivative of pentamethylene diisocyanate.
- the pentamethylene diisocyanate monomer may be modified with isocyanurate or allophanate depending on the reaction conditions.
- the first polyisocyanate may contain an isocyanurate derivative of pentamethylene diisocyanate and an allophanate derivative of pentamethylene diisocyanate.
- the content ratio thereof is appropriately set according to the purpose and use.
- the content ratio of the isocyanurate derivative of pentamethylene diisocyanate is, for example, 10% by mass or more, preferably 20% by mass or more, more preferably 25% by mass or more, based on the total amount of the first polyisocyanate. More preferably, it is 50% by mass or more, further preferably 60% by mass or more, still more preferably 70% by mass or more, and particularly preferably 75% by mass or more.
- the content of the isocyanurate derivative of pentamethylene diisocyanate is, for example, 99% by mass or less, preferably 95% by mass or less, more preferably 90% by mass or less, still more preferably, with respect to the total amount of the first polyisocyanate. Is 80% by mass or less.
- the content ratio of the allophanate derivative of pentamethylene diisocyanate is, for example, 1% by mass or more, preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 10% by mass, based on the total amount of the first polyisocyanate. , 20% by mass or more.
- the content ratio of the allophanate derivative of pentamethylene diisocyanate is, for example, 90% by mass or less, preferably 80% by mass or less, more preferably 75% by mass or less, still more preferably 75% by mass, based on the total amount of the first polyisocyanate. , 50% by mass or less, more preferably 40% by mass or less, still more preferably 30% by mass or less, and particularly preferably 25% by mass or less.
- the content ratio of the isocyanurate derivative and the content ratio of the allophanate derivative are measured by gel permeation chromatography according to the examples described later.
- an isocyanurate derivative of pentamethylene diisocyanate and an allophanate derivative of pentamethylene diisocyanate are produced at the same time.
- an isocyanurate derivative of pentamethylene diisocyanate and an allophanate derivative of pentamethylene diisocyanate are used. May be individually produced and mixed in the above proportions.
- an isocyanurate derivative of pentamethylene diisocyanate and / or an allophanate derivative of pentamethylene diisocyanate may be added to the above reaction product to adjust the ratio.
- the first polyisocyanate may be dissolved in a known organic solvent.
- the solid content concentration of the solution of the first polyisocyanate is, for example, 10% by mass or more, preferably 20% by mass or more.
- the solid content concentration of the solution of the first polyisocyanate is, for example, 90% by mass or less, preferably 80% by mass or less.
- the second polyisocyanate contains a polyisocyanate having 6 or more carbon atoms.
- the second polyisocyanate is preferably composed of a polyisocyanate having 6 or more carbon atoms.
- a polyisocyanate having 6 or more carbon atoms indicates a polyisocyanate monomer having 6 or more carbon atoms and / or a derivative thereof.
- a derivative of a polyisocyanate monomer having 6 or more carbon atoms is referred to as a polyisocyanate derivative having 6 or more carbon atoms.
- polyisocyanate monomer having 6 or more carbon atoms examples include an aliphatic polyisocyanate monomer having 6 or more carbon atoms, an alicyclic polyisocyanate monomer having 6 or more carbon atoms, and an aromatic polyisocyanate having 6 or more carbon atoms. Examples thereof include isocyanate monomers and aromatic aliphatic polyisocyanate monomers having 6 or more carbon atoms.
- Examples of the aliphatic polyisocyanate monomer having 6 or more carbon atoms include hexamethylene diisocyanate monomer. These can be used alone or in combination of two or more.
- Examples of the alicyclic polyisocyanate monomer having 6 or more carbon atoms include isophorone diisocyanate monomer, norbornene diisocyanate monomer, bis (isocyanatomethyl) cyclohexane monomer, and methylenebis (cyclohexylisocyanate) monomer.
- the body is mentioned. These can be used alone or in combination of two or more.
- aromatic polyisocyanate monomer having 6 or more carbon atoms examples include tolylene diisocyanate, naphthalene diisocyanate and diphenylmethane diisocyanate. These can be used alone or in combination of two or more.
- polyisocyanate monomers having 6 or more carbon atoms can be used alone or in combination of two or more.
- Examples of the polyisocyanate derivative having 6 or more carbon atoms include derivatives of the same type as described above.
- polyisocyanate having 6 or more carbon atoms examples include a polyisocyanate derivative having 6 or more carbon atoms, and more preferably an isocyanurate derivative of a polyisocyanate having 6 or more carbon atoms.
- the second polyisocyanate preferably contains an isocyanurate derivative of the polyisocyanate having 6 or more carbon atoms.
- An isocyanurate derivative of a polyisocyanate having 6 or more carbon atoms can be produced by a known method. Further, the isocyanurate derivative of polyisocyanate having 6 or more carbon atoms can be produced, for example, by the same method as the isocyanurate derivative of pentamethylene diisocyanate.
- the content of the isocyanurate derivative of the polyisocyanate having 6 or more carbon atoms is, for example, 10% by mass or more, preferably 20% by mass or more, more preferably 25% by mass or more, based on the total amount of the second polyisocyanate. More preferably, it is 50% by mass or more.
- the content ratio of the isocyanurate derivative of the polyisocyanate having 6 or more carbon atoms is, for example, 100% by mass or less with respect to the total amount of the second polyisocyanate. That is, the second polyisocyanate can be made of an isocyanurate derivative of a polyisocyanate having 6 or more carbon atoms.
- the second polyisocyanate may contain an isocyanurate derivative of a polyisocyanate having 6 or more carbon atoms and an allophanate derivative of a polyisocyanate having 6 or more carbon atoms.
- the second polyisocyanate contains an isocyanurate derivative of a polyisocyanate having 6 or more carbon atoms and an allophanate derivative of a polyisocyanate having 6 or more carbon atoms.
- the second polyisocyanate contains an isocyanurate derivative of a polyisocyanate having 6 or more carbon atoms and an allophanate derivative of a polyisocyanate having 6 or more carbon atoms
- the content ratio thereof is appropriately set according to the purpose and application. Will be done.
- the content ratio of the isocyanurate derivative of the polyisocyanate having 6 or more carbon atoms is, for example, 10% by mass or more, preferably 20% by mass or more, more preferably 20% by mass or more, based on the total amount of the second polyisocyanate. It is 25% by mass or more, more preferably 30% by mass or more, and particularly preferably 40% by mass or more.
- the content of the isocyanurate derivative of the polyisocyanate having 6 or more carbon atoms is, for example, 99% by mass or less, preferably 95% by mass or less, more preferably 90% by mass, based on the total amount of the second polyisocyanate.
- it is more preferably 80% by mass or less, further preferably 75% by mass or less, still more preferably 70% by mass or less, and particularly preferably 60% by mass or less.
- the content of the allophanate derivative of the polyisocyanate having 6 or more carbon atoms is, for example, 1% by mass or more, preferably 5% by mass or more, more preferably 10% by mass or more, based on the total amount of the second polyisocyanate. More preferably, it is 20% by mass or more, further preferably 25% by mass or more, still more preferably 30% by mass or more, and particularly preferably 40% by mass or more.
- the content of the allophanate derivative of the polyisocyanate having 6 or more carbon atoms is, for example, 90% by mass or less, preferably 80% by mass or less, more preferably 75% by mass or less, based on the total amount of the second polyisocyanate. More preferably, it is 70% by mass or less, and particularly preferably 60% by mass or less.
- the second polyisocyanate may be dissolved in a known organic solvent.
- the solid content concentration of the solution of the second polyisocyanate is, for example, 10% by mass or more, preferably 20% by mass or more.
- the solid content concentration of the solution of the second polyisocyanate is, for example, 90% by mass or less, preferably 80% by mass or less.
- the polyisocyanate component can further contain other polyisocyanates as long as it contains the first polyisocyanate and the second polyisocyanate.
- the polyisocyanate component contains only the first polyisocyanate and the second polyisocyanate. That is, preferably, the polyisocyanate component is composed of a first polyisocyanate and a second polyisocyanate.
- the content ratio of the first polyisocyanate is 40% by mass or more, preferably 45% by mass or more, more preferably 50% by mass or more, still more preferably 50% by mass or more, based on the total amount of the first polyisocyanate and the second polyisocyanate. 55% by mass or more, particularly preferably 60% by mass or more.
- the content ratio of the first polyisocyanate is 90% by mass or less, preferably 85% by mass or less, more preferably 80% by mass or less, still more preferably, with respect to the total amount of the first polyisocyanate and the second polyisocyanate. Is 75% by mass or less.
- the content ratio of the second polyisocyanate is, for example, 10% by mass or more, preferably 15% by mass or more, more preferably 20% by mass or more, still more preferably, with respect to the total amount of the first polyisocyanate and the second polyisocyanate. Is 25% by mass or more.
- the content ratio of the second polyisocyanate is, for example, 60% by mass or less, preferably 55% by mass or less, more preferably 50% by mass or less, based on the total amount of the first polyisocyanate and the second polyisocyanate. More preferably, it is 45% by mass or less, and particularly preferably 40% by mass or less.
- the content ratio of the first polyisocyanate and the content ratio of the second polyisocyanate are within the above ranges, a water-dispersible polyisocyanate having excellent curability, water dispersibility and pot life can be obtained.
- the polyisocyanate component may be dissolved in a known organic solvent.
- the solid content concentration of the solution of the polyisocyanate component is, for example, 10% by mass or more, preferably 20% by mass or more.
- the solid content concentration of the solution of the polyisocyanate component is, for example, 90% by mass or less, preferably 80% by mass or less.
- the polyisocyanate component and the hydrophilic active hydrogen component are reacted at a ratio in which free isocyanate groups remain.
- the method for producing the water-dispersed polyisocyanate is not particularly limited.
- the first polyisocyanate and the second polyisocyanate are mixed at the above ratios to prepare a mixed polyisocyanate. Then, the mixed polyisocyanate is reacted with the hydrophilic active hydrogen component. Thereby, a water-dispersed polyisocyanate can be obtained.
- the first polyisocyanate is reacted with a hydrophilic active hydrogen component to prepare a first water-dispersed polyisocyanate.
- the second polyisocyanate is reacted with the hydrophilic active hydrogen component to prepare a second water-dispersed polyisocyanate.
- the first water-dispersed polyisocyanate and the second water-dispersed polyisocyanate are mixed.
- the ratio of the first polyisocyanate and the second polyisocyanate is adjusted to be within the above range. Thereby, a water-dispersed polyisocyanate can be obtained.
- the first polyisocyanate is reacted with the hydrophilic active hydrogen component to prepare the first water-dispersed polyisocyanate.
- the second polyisocyanate is reacted with the hydrophilic active hydrogen component to prepare a second water-dispersed polyisocyanate.
- the first water-dispersed polyisocyanate and the second water-dispersed polyisocyanate are mixed. As a result, a water-dispersed polyisocyanate is obtained.
- the hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound.
- the sulfone group-containing active hydrogen compound is a compound containing one or more sulfone groups and one or more active hydrogen groups.
- the active hydrogen group include a hydroxyl group and an amino group.
- Examples of the sulfone group-containing active hydrogen compound include a compound having one active hydrogen group and one sulfone group.
- Examples of such a sulfone group-containing active hydrogen compound include hydroxyalkane sulfonic acid and amino sulfonic acid.
- hydroxyalkane sulfonic acid examples include hydroxymethane sulfonic acid, hydroxyetan sulfonic acid and 3-hydroxypropane sulfonic acid. These can be used alone or in combination of two or more.
- amino sulfonic acid examples include 2- (cyclohexylamino) -ethanesulfonic acid (CHES) and 3- (cyclohexylamino) -propanesulfonic acid (CAPS). These can be used alone or in combination of two or more.
- sulfone group-containing active hydrogen compounds can be used alone or in combination of two or more.
- the sulfone group-containing active hydrogen compound is preferably aminosulfonic acid, and more preferably 3- (cyclohexylamino) -propanesulfonic acid.
- hydrophilic active hydrogen component can include other water-dispersible active hydrogen compounds as optional components.
- water-dispersible active hydrogen compounds are water-dispersible active hydrogen compounds excluding sulfone group-containing active hydrogen compounds.
- water-dispersible active hydrogen compounds include nonionic group-containing active hydrogen compounds, carboxyl group-containing active hydrogen compounds, and phosphate group-containing active hydrogen compounds.
- nonionic group-containing active hydrogen compound examples include polyoxyethylene compounds.
- polyoxyethylene compound examples include a compound having both an active hydrogen group and at least three consecutive ethylene oxide groups.
- examples of such a polyoxyethylene compound include one-ended closed polyoxyethylene glycol and polyoxyethylene side chain-containing diol.
- Examples of the one-ended sealed polyoxyethylene glycol include alkoxypolyethylene glycol having one end sealed with an alkyl group having 1 to 20 carbon atoms. More specifically, methoxypolyoxyethylene glycol and ethoxypolyoxyethylene glycol can be mentioned.
- One-ended closed polyoxyethylene glycol can be produced by a known method.
- polyoxyethylene side chain-containing diol examples include a reaction product of a polyoxyethylene group-containing monoisocyanate and a dialkanolamine.
- the polyoxyethylene side chain-containing diol can be produced by a known method.
- the polyoxyethylene compound can be used alone or in combination of two or more.
- the number average molecular weight of the polyoxyethylene compound is, for example, 200 or more, preferably 300 or more, for example, 2000 or less, preferably 1000 or less.
- the carboxyl group-containing active hydrogen compound is a compound having both an active hydrogen group and a carboxyl group.
- the carboxyl group-containing active hydrogen compound include a carboxyl group-containing active hydrogen compound having one active hydrogen group and one carboxyl group.
- examples of the carboxyl group-containing active hydrogen compound include a carboxyl group-containing active hydrogen compound having both two active hydrogen groups and one carboxyl group.
- Examples of the carboxyl group-containing active hydrogen compound having one active hydrogen group and one carboxyl group include glycolic acid, lactic acid, hydroxypivalic acid, malic acid, and citric acid.
- Examples of the carboxyl group-containing active hydrogen compound having both two active hydrogen groups and one carboxyl group include 2,2-dimethylol acetic acid, 2,2-dimethylol lactic acid, 2,2-dimethylol propionic acid, and 2, Examples thereof include 2-dimethylol butanoic acid, dimethylol heptanic acid, dimethylol nonanoic acid, 2,2-dimethylol butyric acid, and 2,2-dimethylol valeric acid.
- the carboxyl group-containing active hydrogen compound can be used alone or in combination of two or more.
- the phosphoric acid group-containing active hydrogen compound is a compound having both an active hydrogen group and a phosphoric acid group.
- Examples of the phosphoric acid group-containing active hydrogen compound include a phosphoric acid group-containing active hydrogen compound having one active hydrogen group and one phosphoric acid group.
- Examples of such a phosphate group-containing active hydrogen compound include hydroxyalkylphosphonic acid and aminoalkylphosphonic acid.
- the phosphoric acid group-containing active hydrogen compound can be used alone or in combination of two or more.
- water-dispersible active hydrogen compounds can be used alone or in combination of two or more.
- the content ratio of the other water-dispersible active hydrogen compound is, for example, 90% by mass or less, preferably 70% by mass or less, more preferably 50% by mass or less, still more preferably, with respect to the total amount of the hydrophilic active hydrogen component. Is 30% by mass or less, more preferably 10% by mass or less, and particularly preferably 0% by mass.
- the hydrophilic active hydrogen component is particularly preferably composed of a sulfone group-containing active hydrogen compound and does not contain other water-dispersible active hydrogen compounds.
- the hydrophilic active hydrogen component is composed of a sulfone group-containing active hydrogen compound
- a polyurethane resin having particularly excellent hardness and mechanical properties can be obtained, and a water-dispersible polyisocyanate having excellent curability and water dispersibility. Is obtained.
- the reaction ratio between the first polyisocyanate and the hydrophilic active hydrogen component is adjusted so that free isocyanate groups remain in the reaction product.
- the equivalent ratio (active hydrogen group / NCO) of the active hydrogen group of the hydrophilic active hydrogen component to the isocyanate group of the first polyisocyanate is, for example, 0.30 or less, preferably 0.20 or less. Is.
- the equivalent ratio (active hydrogen group / NCO) of the active hydrogen group of the hydrophilic active hydrogen component to the isocyanate group of the first polyisocyanate is, for example, 0.01 or more, preferably 0.10 or more.
- the mixing ratio of the hydrophilic active hydrogen component is, for example, 10 parts by mass or more, preferably 20 parts by mass or more, and more preferably 25 parts by mass or more with respect to 100 parts by mass of the first polyisocyanate.
- the mixing ratio of the hydrophilic active hydrogen component is, for example, 70 parts by mass or less, preferably 60 parts by mass or less, and more preferably 55 parts by mass or less with respect to 100 parts by mass of the first polyisocyanate.
- the reaction conditions between the first polyisocyanate and the hydrophilic active hydrogen component are appropriately set as long as the excellent effects of the present invention are not impaired. More specifically, the environmental conditions are an inert atmosphere and normal pressure.
- the reaction temperature is, for example, 50 ° C. or higher, preferably 70 ° C. or higher.
- the reaction temperature is, for example, 150 ° C. or lower, preferably 110 ° C. or lower.
- the reaction time is, for example, 0.5 hours or more, preferably 1 hour or more.
- the reaction time is, for example, 120 hours or less, preferably 72 hours or less.
- the end of the reaction is confirmed, for example, by the fact that the amount of isocyanate in the reaction solution does not change.
- the amount of isocyanate is measured by a titration method or an infrared absorption method.
- a neutralizing agent is added to the reaction solution to form a salt of a sulfone group. That is, the sulfone group does not have to be a salt and may be a salt. Preferably, the sulfone group includes a salt of a sulfone group.
- Examples of the neutralizing agent include conventional bases.
- Specific examples of the base include organic bases and inorganic bases.
- Examples of the organic base include tertiary amines and secondary amines.
- Examples of tertiary amines include trialkylamines and alkanolamines.
- Examples of the trialkylamine include trimethylamine, triethylamine, and N, N-dimethylcyclohexylamine.
- Examples of alkanolamines include dimethylethanolamine, methyldiethanolamine, triethanolamine and triisopropanolamine.
- Examples of the secondary amine include a heterocyclic amine. Examples of the heterocyclic amine include morpholine.
- Examples of the inorganic base include ammonia, alkali metal hydroxides, alkaline earth metal hydroxides and alkali metal carbonates.
- Examples of the alkali metal hydroxide include lithium hydroxide, sodium hydroxide and lithium hydroxide.
- Examples of the alkaline earth metal hydroxide include magnesium hydroxide and calcium hydroxide.
- Examples of the alkali metal carbonate include sodium carbonate and potassium carbonate.
- neutralizers can be used alone or in combination of two or more.
- the neutralizing agent preferably includes an organic base, more preferably a tertiary amine, further preferably a trialkylamine, and particularly preferably N, N-dimethylcyclohexylamine. ..
- the amount of the neutralizing agent added is, for example, 0.4 equivalent or more, preferably 0.6 equivalent or more, relative to 1 equivalent of the sulfone group.
- the amount of the neutralizing agent added is, for example, 1.2 equivalents or less, preferably 1.0 equivalent or less, relative to 1 equivalent of the sulfone group.
- the second water-dispersed polyisocyanate is prepared in the same manner as the first water-dispersed polyisocyanate. That is, first, the second polyisocyanate and the hydrophilic active hydrogen component are reacted in the same manner as described above, and then the reaction product is neutralized in the same manner as described above.
- the first water-dispersed polyisocyanate and the second water-dispersed polyisocyanate are mixed.
- the mixing ratio is adjusted so that the ratio of the first polyisocyanate in the first water-dispersed polyisocyanate and the ratio of the second polyisocyanate in the second water-dispersed polyisocyanate are within the above ranges. ..
- the isocyanate group may be a free isocyanate group. Further, the isocyanate group may be blocked by a blocking agent. That is, examples of the isocyanate group include a free isocyanate group and a blocked isocyanate group.
- the blocking agent is a compound having an active group (hereinafter referred to as a blocking group) that reacts with an isocyanate group.
- the blocking agent include active methylene compounds, active methine compounds, imidazole compounds, imidazoline compounds, pyrimidine compounds, guanidine compounds, alcohol compounds, phenol compounds, amine compounds, imine compounds, and oximes. Examples thereof include system compounds, carbamate compounds, urea compounds, acid amide compounds, lactam compounds, acidimide compounds, triazole compounds, pyrazole compounds, mercaptan compounds and heavy sulfites. These can be used alone or in combination of two or more.
- Preferred examples of the blocking agent include imidazole-based compounds, imidazoline-based compounds, oxime-based compounds and pyrazole-based compounds.
- the blending ratio of the water-dispersed polyisocyanate having a free isocyanate group and the blocking agent is adjusted based on, for example, the equivalent ratio of the isocyanate group in the water-dispersed polyisocyanate to the blocking group in the blocking agent. Will be done.
- the equivalent ratio of the blocking group to the free isocyanate group is, for example, 0.2 or more, preferably 0.5 or more, more preferably 0.8 or more, and further. It is preferably 1.0 or more.
- the equivalent ratio of the blocking group to the free isocyanate group is, for example, 1.5 or less, preferably 1.2 or less, and more preferably 1.1 or less.
- the reaction conditions between the water-dispersed polyisocyanate having a free isocyanate group and the blocking agent are appropriately set as long as the excellent effects of the present invention are not impaired. More specifically, the environmental conditions are an inert atmosphere and normal pressure.
- the reaction temperature is, for example, 0 ° C. or higher, preferably 20 ° C. or higher.
- the reaction temperature is, for example, 100 ° C. or lower, preferably 80 ° C. or lower, and more preferably 70 ° C. or lower.
- the reaction time is, for example, 0.5 hours or more, preferably 1.0 hour or more.
- the reaction time is, for example, 24 hours or less, preferably 12 hours or less.
- the end of the reaction is confirmed, for example, by the fact that the amount of isocyanate in the reaction solution does not change.
- the amount of isocyanate is measured by a titration method or an infrared absorption method.
- each of the above reactions may be carried out without a solvent.
- each of the above reactions may be carried out in the presence of a solvent.
- the solvent include known organic solvents.
- the mixing ratio of the solvent is appropriately set according to the purpose and application.
- the solvent when a solvent is used, the solvent can be removed after the reaction is completed.
- Methods for removing the solvent include, for example, distillation and extraction.
- the isocyanate group indicates a free isocyanate group and an isocyanate group blocked by a blocking agent.
- the average number of isocyanate groups in the water-dispersed polyisocyanate is, for example, 2 or more, preferably 2.2 or more, for example, 4.0 or less, preferably 3.5 or less.
- the content ratio of the isocyanate group is, for example, 5% by mass or more, preferably 7% by mass or more, based on the total amount of the water-dispersed polyisocyanate. Further, the content ratio of the isocyanate group is, for example, 30% by mass or less, preferably 25% by mass or less, more preferably 20% by mass or less, based on the total amount of the water-dispersed polyisocyanate.
- the content ratio of the sulfone group is, for example, 0.1% by mass or more, preferably 0.2% by mass or more, more preferably 0.5% by mass or more, based on the total amount of the water-dispersed polyisocyanate. More preferably, it is 1% by mass or more. Further, the content ratio of the sulfone group is, for example, 10% by mass or less, preferably 5% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass, based on the total amount of the water-dispersed polyisocyanate. % Or less.
- the content ratio of the sulfone group exceeds the above lower limit, particularly excellent water dispersibility can be obtained. Further, if the content ratio of the sulfone group is less than the above upper limit, particularly excellent water resistance can be obtained.
- the content ratio of the sulfone group can be calculated from the chemical structural formula and the compounding formulation in accordance with the examples described later.
- the content ratio thereof is, for example, 10% by mass or less, preferably 5% by mass or less, more preferably, with respect to the total amount of the water-dispersed polyisocyanate. Is 4% by mass or less, more preferably 3% by mass or less.
- the content ratio of the oxyethylene unit can be calculated from the chemical structural formula and the compounding formulation in accordance with the examples described later.
- the acid value of the water-dispersed polyisocyanate is, for example, 1 mgKOH / g or more, preferably 2 mgKOH / g or more, and more preferably 3 mgKOH / g or more.
- the acid value of the water-dispersed polyisocyanate is, for example, 56 mgKOH / g or less, preferably 34 mgKOH / g or less, and more preferably 12 mgKOH / g or less.
- the acid value is measured in accordance with JIS K 1557-5 (2007). Further, the acid value can also be obtained by calculating the sulfone group content of the water-dispersed polyisocyanate based on the charged amount of the raw material component.
- the acid value of the water-dispersible polyisocyanate exceeds the above lower limit, particularly excellent water dispersibility can be obtained. Further, if the acid value of the water-dispersed polyisocyanate is lower than the above upper limit, particularly excellent water resistance can be obtained.
- the water-dispersed polyisocyanate described above contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component, and the polyisocyanate component is a first polyisocyanate containing pentamethylene diisocyanate and a poly having 6 or more carbon atoms. It contains a second polyisocyanate containing an isocyanate, and the hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound.
- the content ratio of the first polyisocyanate is 40% by mass or more and 90% by mass or less with respect to the total amount of the first polyisocyanate and the second polyisocyanate. Therefore, the above-mentioned water-dispersible polyisocyanate has excellent curability, water dispersibility and pot life.
- the aqueous polyurethane resin composition contains the above-mentioned water-dispersed polyisocyanate and an active hydrogen group-containing compound.
- the aqueous polyurethane resin composition may be a one-component curable polyurethane resin composition in which an aqueous dispersion type polyisocyanate and an active hydrogen group-containing compound are mixed.
- the polyurethane resin composition may be a two-component curable polyurethane resin composition in which a water-dispersed polyisocyanate and an active hydrogen group-containing compound are individually prepared and blended at the time of use.
- the aqueous polyurethane resin composition is a two-component curable polyurethane resin composition.
- the two-component curable polyurethane resin composition contains an active hydrogen group-containing compound as a main agent. Further, the two-component curable polyurethane resin composition contains the above-mentioned water-dispersible polyisocyanate as a curing agent.
- the main agent contains, for example, an aqueous dispersion of an active hydrogen group-containing compound.
- Examples of the active hydrogen group-containing compound include macropolyol.
- the macropolyol is an organic compound (polymer) having two or more hydroxyl groups in the molecule and having a relatively high molecular weight.
- the number average molecular weight of the macropolyol is, for example, more than 600 and, for example, 20000 or less.
- macropolyols examples include polyether polyols, polyester polyols, polycarbonate polyols, polyurethane polyols, epoxy polyols, vegetable oil polyols, polyolefin polyols, acrylic polyols and vinyl monomer-modified polyols. These can be used alone or in combination of two or more.
- active hydrogen group-containing compounds can be used alone or in combination of two or more.
- the aqueous dispersion of the active hydrogen group-containing compound is prepared, for example, by adding water to the active hydrogen group-containing compound.
- the aqueous dispersion of the active hydrogen group-containing compound is also prepared, for example, by adding the active hydrogen group-containing compound to water.
- the content ratio of the active hydrogen group-containing compound is appropriately set according to the purpose and application.
- the amount of the active hydrogen group-containing compound (solid content) is, for example, 1% by mass or more, preferably 5% by mass or more, based on the total amount of the aqueous dispersion.
- the amount of the active hydrogen group-containing compound (solid content) is, for example, 30% by mass or less, preferably 20% by mass or less, based on the total amount of the aqueous dispersion.
- the curing agent contains, for example, an aqueous dispersion of an aqueous dispersion type polyisocyanate.
- the aqueous dispersion of the aqueous dispersion polyisocyanate is prepared, for example, by adding water to the aqueous dispersion polyisocyanate.
- the aqueous dispersion of the aqueous dispersion polyisocyanate is also prepared, for example, by adding the aqueous dispersion polyisocyanate to water.
- a known external emulsifier can be added to water and / or a water-dispersed polyisocyanate. It is also possible to add a known external emulsifier to the mixture of water and water-dispersed polyisocyanate.
- the content ratio of the water-dispersed polyisocyanate in the water-dispersed liquid of the water-dispersed polyisocyanate is appropriately set according to the purpose and application.
- the aqueous dispersion type polyisocyanate (solid content) is, for example, 1% by mass or more, preferably 5% by mass or more, based on the total amount of the aqueous dispersion.
- the amount of the water-dispersed polyisocyanate (solid content) is, for example, 30% by mass or less, preferably 20% by mass or less, based on the total amount of the water dispersion liquid.
- an aqueous dispersion of an active hydrogen group-containing compound When an aqueous dispersion of an active hydrogen group-containing compound is prepared, it is not necessary to prepare an aqueous dispersion of an aqueous dispersion type polyisocyanate. That is, the solid content of the water-dispersed polyisocyanate can be used as it is.
- an aqueous dispersion of an aqueous dispersion type polyisocyanate is prepared, it is not necessary to prepare an aqueous dispersion of an active hydrogen group-containing compound. That is, the solid content of the active hydrogen group-containing compound can be used as it is.
- the aqueous polyurethane resin composition can contain additives.
- the additive include a catalyst, a solvent, an epoxy resin, a coatability improver, a leveling agent, a defoaming agent, an antioxidant, an ultraviolet absorber, a thickener, an antioxidant, a plasticizer, and a surfactant.
- examples include pigments, antifungal agents, fillers, organic particles and inorganic particles.
- the additive may be blended with the main agent. Further, the additive may be blended in the curing agent.
- the blending amount of the additive is appropriately set according to the purpose and use.
- a main agent and a curing agent are blended.
- the blending ratio of the main agent and the curing agent is adjusted based on, for example, the equivalent ratio of the isocyanate group of the water-dispersed polyisocyanate to the active hydrogen group of the active hydrogen group-containing compound (isocyanate group / hydroxyl group).
- the equivalent ratio (isocyanate group / active hydrogen group) of the isocyanate group of the water-dispersed polyisocyanate to the active hydrogen group of the active hydrogen group-containing compound is, for example, 0.1 or more, preferably 0. 5 or more. Further, the equivalent ratio (isocyanate group / active hydrogen group) of the isocyanate group of the water-dispersed polyisocyanate to the active hydrogen group of the active hydrogen group-containing compound is, for example, 5 or less, preferably 3 or less.
- the mixture of the main agent and the curing agent is applied to an arbitrary object to be coated by a known application method, and is dried under arbitrary drying conditions.
- the coating method include spray coating, dip coating, spin coating, rotary atomization coating and curtain coating coating.
- the heating conditions are appropriately set according to the main agent and the curing agent.
- the heating temperature is, for example, 60 ° C. or higher, preferably 80 ° C. or higher.
- the heating temperature is, for example, 150 ° C. or lower, preferably 130 ° C. or lower.
- the heating time is, for example, 1 minute or longer, preferably 5 minutes or longer.
- the heating time is, for example, 24 hours or less, preferably 12 hours or less.
- a polyurethane resin can be obtained as a cured product made of the aqueous polyurethane resin composition.
- This also gives an article containing an object to be coated and a polyurethane layer. More specifically, the article comprises an object to be coated and a polyurethane layer disposed on the surface of the object to be coated, wherein the polyurethane layer comprises a cured coating of the aqueous polyurethane resin composition described above. There is. Further, the polyurethane resin is cured under arbitrary conditions, if necessary.
- the aqueous polyurethane resin composition is preferably a one-component curable polyurethane resin composition.
- the mixing ratio of the water-dispersed polyisocyanate and the active hydrogen group-containing compound is the same as the mixing ratio of the water-dispersed polyisocyanate and the active hydrogen group-containing compound in the above-mentioned two-component curable polyurethane resin composition.
- the above-mentioned aqueous polyurethane resin composition contains the above-mentioned water-dispersible polyisocyanate. Therefore, the above-mentioned aqueous polyurethane resin composition can obtain a polyurethane resin having excellent hardness and is also excellent in curability.
- the above-mentioned article contains the cured coating film of the above-mentioned aqueous polyurethane resin composition, it has excellent productivity.
- the above-mentioned water-dispersible polyisocyanate, aqueous polyurethane resin composition and article are suitably used in, for example, automobile exteriors, surface resin coatings for household electrical appliances, and flexible packaging flexographic inks.
- Synthesis Example 1 (Preparation of Polyisocyanate A) 2000.0 g of 1,5-pentamethylene diisocyanate (1,5-PDI, manufactured by Mitsui Chemicals, Inc.) and 3.2 g of isobutanol in a four-necked flask equipped with a stirrer, a thermometer, a reflux tube and a nitrogen introduction tube. And prepared. These were subjected to a urethanization reaction at 80 ° C. for 2 hours. The equivalent ratio (NCO / OH) of the isocyanate group of 1,5-PDI to the hydroxyl group of isobutanol was 600.
- DABCO-TMR N- (2-hydroxypropyl) -N, N, N-trimethylammonium-2-ethylhexanoate, manufactured by Air Products and Chemicals, Inc.
- 0 was added to the obtained reaction solution as an isocyanurate-forming catalyst. .52 g was added and reacted at 80-86 ° C. for 2 hours.
- the reaction solution was distilled with a thin film distillation apparatus (vacuum degree 0.05 kPa, temperature 140 ° C.) to remove unreacted 1,5-PDI. Then, the residual component was dissolved in propylene glycol methyl ether acetate (PMA) so as to have a solid content concentration of 75.0% by mass. As a result, polyisocyanate A was obtained.
- PMA propylene glycol methyl ether acetate
- the isocyanate group content (NCO%) of this polyisocyanate A was 18.5%.
- polyisocyanate A was measured by gel permeation chromatography described later. As a result, it was confirmed that the polyisocyanate A contained an isocyanurate derivative. Moreover, polyisocyanate A did not contain an allophanate derivative. That is, the content of the isocyanate derivative with respect to the total amount of the allophanate derivative and the isocyanate derivative was 100% by mass.
- Synthesis Example 2 (Preparation of Polyisocyanate B) 2000.0 g of 1,5-pentamethylene diisocyanate and 26.3 g of isobutanol were used. Except for the above, polyisocyanate B was obtained in the same manner as in Synthesis Example 1. The equivalent ratio (NCO / OH) of the isocyanate group of 1,5-PDI to the hydroxyl group of isobutanol was 73.
- the isocyanate group content (NCO%) of this polyisocyanate B was 13.5%.
- the content ratio of the isocyanate derivative to the total amount of the allophanate derivative and the isocyanate derivative was 50% by mass.
- Synthesis Example 3 (Preparation of Polyisocyanate C) 2000.0 g of 1,5-pentamethylene diisocyanate and 241.6 g of lauryl alcohol were used. Except for the above, polyisocyanate C was obtained in the same manner as in Synthesis Example 1. The equivalent ratio (NCO / OH) of the isocyanate group of 1,5-PDI to the hydroxyl group of the lauryl alcohol was 20.
- the isocyanate group content (NCO%) of this polyisocyanate C was 13.5%.
- the content ratio of the isocyanate derivative to the total amount of the allophanate derivative and the isocyanate derivative was 50% by mass.
- Synthesis Example 4 (Preparation of Polyisocyanate D) 2000.0 g of 1,3-bis (isocyanatomethyl) cyclohexane (1,3-H 6 XDI) and 76.4 g of isobutanol were used. Except for the above, polyisocyanate D was obtained in the same manner as in Synthesis Example 1. The equivalent ratio (NCO / OH) of the isocyanate group of 1,3-H 6 XDI to the hydroxyl group of isobutanol was 20.
- the isocyanate group content (NCO%) of this polyisocyanate D was 13.5%.
- the content ratio of the isocyanate derivative to the total amount of the allophanate derivative and the isocyanate derivative was 50% by mass.
- Synthesis Example 5 (Preparation of Polyisocyanate E) A commercially available VESTANAT T-1890 (isocyanurate derivative of isophorone diisocyanate, manufactured by Evonik Industries, Inc.) was prepared. This was designated as polyisocyanate E.
- Synthesis Example 6 (Preparation of Polyisocyanate F) Hexamethylene diisocyanate 2000.0 g and isobutanol 2.9 g were used. Except for the above, polyisocyanate G was obtained in the same manner as in Synthesis Example 1. The equivalent ratio (NCO / OH) of the isocyanate group of hexamethylene diisocyanate to the hydroxyl group of isobutanol was 600.
- the isocyanate group content (NCO%) of this polyisocyanate F was 17.1%.
- the area ratio of the peak corresponding to the allophanate derivative to all the peaks was defined as the content rate of the allophanate derivative.
- the ratio of the residual was taken as the content ratio of the isocyanurate derivative.
- the peak having the top in the molecular weight range of 330 to 430 is the peak corresponding to the allophanate derivative.
- GPC device Equipment used: HLC-8020 (manufactured by Tosoh) Columns used: G1000HXL, G2000HXL and G3000HXL (above, trade name manufactured by Tosoh) are connected in series.
- the first polyisocyanate or the second polyisocyanate and the hydrophilic active hydrogen component were mixed and reacted at 80 to 90 ° C. for 8 hours under dry nitrogen. Then, a neutralizing agent was added, and a solvent was further added to adjust the solid content concentration.
- Examples 1 to 7 and Comparative Examples 1 to 2 The first water-dispersed polyisocyanate and the second water-dispersed polyisocyanate obtained in each production example were blended according to the formulations shown in Table 2 to obtain a water-dispersed polyisocyanate. In Comparative Example 1, the first water-dispersed polyisocyanate was used alone.
- Each water-dispersed polyisocyanate as a curing agent was added to the above main agent and stirred for 15 minutes.
- the equivalent ratio (NCO / OH) of the isocyanate group in the curing agent to the hydroxyl group in the main agent was set to 1.0.
- the mixed solution of the main agent and the curing agent was allowed to stand at 23 ° C. for 20 hours. Then, the state of the mixed solution was evaluated according to the following evaluation criteria. ⁇ : No precipitate.
- Each water-dispersed polyisocyanate as a curing agent was added to the above main agent and stirred for 15 minutes.
- the equivalent ratio (NCO / OH) of the isocyanate group in the curing agent to the hydroxyl group in the main agent was set to 1.0.
- a mixed solution of the main agent and the curing agent was applied onto the glass plate.
- the coating amount was adjusted so that the dry thickness was 20 ⁇ m.
- the coating film was dried at 70 ° C. for 30 minutes and cured at 23 ° C. for 7 days. As a result, a cured film was obtained.
- the cured membrane was immersed in a mixed solution of acetone and methanol (mass ratio 1: 1) for 24 hours.
- the residual rate of the cured film after immersion was calculated and evaluated according to the following evaluation criteria.
- H 6 XDI 1,3-bis (isocyanatomethyl) cyclohexane, Takenate 600, manufactured by Mitsui Chemicals, Inc.
- HDI 1,6-hexamethylene diisocyanate
- PDI 1,5-pentamethylene diisocyanate
- IPDI isophorone diisocyanate
- CAPS 3- ( Cyclohexylamino) -Propane sulfonic acid, Sulfone group-containing active hydrogen compound DMCHA: N, N-dimethylcyclohexylamine
- PMA Propropylene glycol Methyl ether acetate
- the water-dispersible polyisocyanate, aqueous polyurethane resin composition and article of the present invention are suitably used in, for example, automobile exteriors, surface resin coatings for household electrical appliances, and flexible packaging flexo inks.
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Abstract
Description
また、反応時間が、例えば、10時間以下、好ましくは、6時間以下である。
また、反応時間が、例えば、20時間以下、好ましくは、10時間以下である。
なお、スルホン基の含有割合は、後述する実施例に準拠して、化学構造式および配合処方から、算出できる。
撹拌機、温度計、還流管および窒素導入管を備えた4つ口フラスコに、1,5-ペンタメチレンジイソシアネート(1,5-PDI、三井化学社製)2000.0gと、イソブタノール3.2gとを仕込んだ。これらを、80℃で2時間ウレタン化反応させた。なお、イソブタノールの水酸基に対する1,5-PDIのイソシアネート基の当量比(NCO/OH)が、600であった。
1,5-ペンタメチレンジイソシアネート2000.0gと、イソブタノール26.3gとを用いた。上記以外は、合成例1と同様にして、ポリイソシアネートBを得た。なお、イソブタノールの水酸基に対する1,5-PDIのイソシアネート基の当量比(NCO/OH)は、73であった。
1,5-ペンタメチレンジイソシアネート2000.0gと、ラウリルアルコール241.6gとを用いた。上記以外は、合成例1と同様にして、ポリイソシアネートCを得た。なお、ラウリルアルコールの水酸基に対する1,5-PDIのイソシアネート基の当量比(NCO/OH)は、20であった。
1,3-ビス(イソシアナトメチル)シクロヘキサン(1,3-H6XDI)2000.0gと、イソブタノール76.4gとを用いた。上記以外は、合成例1と同様にして、ポリイソシアネートDを得た。なお、イソブタノールの水酸基に対する1,3-H6XDIのイソシアネート基の当量比(NCO/OH)は、20であった。
市販のVESTANAT T-1890(イソホロンジイソシアネートのイソシアヌレート誘導体、エボニック社製)を用意した。これを、ポリイソシアネートEとした。
ヘキサメチレンジイソシアネート2000.0gと、イソブタノール2.9gとを用いた。上記以外は、合成例1と同様にして、ポリイソシアネートGを得た。なお、イソブタノールの水酸基に対するヘキサメチレンジイソシアネートのイソシアネート基の当量比(NCO/OH)は、600であった。
各ポリイソシアネートの分子量分布を、下記のGPC装置で測定した。
使用機器:HLC-8020(東ソー製)
使用カラム:G1000HXL、G2000HXLおよびG3000HXL(以上、東ソー製商品名)を直列に連結
サンプル濃度:0.3質量%、テトラヒドロフラン溶液
サンプル注入量:100μL
溶離液:テトラヒドロフラン
溶離液の流量:0.8ml/min
カラム温度:40℃
検出方法:示差屈折率
標準物質:ポリエチレンオキシド(東ソー製、商品名:TSK標準ポリエチレンオキシド)
製造例1~6
表1に示す処方で、第1水分散型ポリイソシアネートおよび第2水分散型ポリイソシアネートを得た。
JIS K 1557-5(2007)に準拠して、酸価を測定した。
SO3 -の分子量を80として、化学構造式および配合処方から、スルホン基の含有割合(SO3含有率)を算出した。
イソシアネート基の含有割合を、電位差滴定装置を用いて、JIS K-1556(2006)に準拠したn-ジブチルアミン法により測定した。
表2に示す処方で、各製造例で得られた第1水分散型ポリイソシアネートおよび第2水分散型ポリイソシアネートを配合し、水分散型ポリイソシアネートを得た。なお、比較例1では、第1水分散型ポリイソシアネートを単独で使用した。
(1)水分散性
水分散型ポリイソシアネートの固形分5gを、水95gに対して添加し、マグネチックスターラーで15分間撹拌した後、1時間静置した。そして、混合液の性状を、以下の評価基準で、評価した。
水酸基価100mgKOH/gの水性アクリルエマルション(固形分濃度40.0質量%)を、水で固形分濃度25質量%に希釈した。この水溶液を、主剤とした。
○:沈殿物なし。
水酸基価50mgKOH/gの水性アクリルエマルション(固形分濃度40.0質量%)を、水で固形分濃度25質量%に希釈した。この水溶液を、主剤とした。
HDI:1,6-ヘキサメチレンジイソシアネート
PDI:1,5-ペンタメチレンジイソシアネート
IPDI:イソホロンジイソシアネート
CAPS:3-(シクロヘキシルアミノ)-プロパンスルホン酸、スルホン基含有活性水素化合物
DMCHA:N,N-ジメチルシクロヘキシルアミン
PMA:プロピレングリコールメチルエーテルアセテート
Claims (9)
- イソシアネート基およびスルホン基を含有する水分散型ポリイソシアネートであって、
ポリイソシアネート成分と親水性活性水素成分との反応生成物を含み、
前記ポリイソシアネート成分は、
ペンタメチレンジイソシアネートを含む第1ポリイソシアネートと、
炭素数6以上のポリイソシアネートを含む第2ポリイソシアネートと
を含み、
前記親水性活性水素成分は、スルホン基含有活性水素化合物を含み、
前記第1ポリイソシアネートの含有割合が、前記第1ポリイソシアネートおよび前記第2ポリイソシアネートの総量に対して、40質量%以上90質量%以下である、水分散型ポリイソシアネート。 - 前記第1ポリイソシアネートが、ペンタメチレンジイソシアネートのイソシアヌレート誘導体を含み、
ペンタメチレンジイソシアネートのイソシアヌレート誘導体の含有割合が、前記第1ポリイソシアネートの総量に対して、60質量%以上である、請求項1に記載の水分散型ポリイソシアネート。 - ペンタメチレンジイソシアネートの前記イソシアヌレート誘導体が、ペンタメチレンジイソシアネート単量体とアルコールとの反応生成物を含む、請求項2に記載の水分散型ポリイソシアネート。
- 前記アルコールが、モノオールを含む、請求項3に記載の水分散型ポリイソシアネート。
- 前記第2ポリイソシアネートが、炭素数6以上のポリイソシアネートのイソシアヌレート誘導体を含み、
炭素数6以上のポリイソシアネートのイソシアヌレート誘導体の含有割合が、前記第2ポリイソシアネートの総量に対して、25質量%以上75質量%以下である、請求項1に記載の水分散型ポリイソシアネート。 - 前記スルホン基の含有割合が、前記水分散型ポリイソシアネートの総量に対して、0.2質量%以上5質量%以下である、請求項1に記載の水分散型ポリイソシアネート。
- 前記水分散型ポリイソシアネートの前記イソシアネート基が、ブロック剤によりブロックされている、請求項1に記載の水分散型ポリイソシアネート。
- 請求項1に記載の水分散型ポリイソシアネートと、
活性水素基含有化合物と
を含む、水性ポリウレタン樹脂組成物。 - 被塗物と、前記被塗物の表面に配置されるポリウレタン層とを備え、
前記ポリウレタン層が、請求項8に記載の水性ポリウレタン樹脂組成物の硬化物を含む、物品。
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CN202180062967.0A CN116075535A (zh) | 2020-09-30 | 2021-09-29 | 水分散型多异氰酸酯、水性聚氨酯树脂组合物及物品 |
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WO2012121291A1 (ja) | 2011-03-09 | 2012-09-13 | 三井化学株式会社 | ペンタメチレンジイソシアネート、ペンタメチレンジイソシアネートの製造方法、ポリイソシアネート組成物、ポリウレタン樹脂およびポリウレア樹脂 |
WO2019141683A1 (de) * | 2018-01-18 | 2019-07-25 | Covestro Deutschland Ag | Klebstoffe |
JP2019189866A (ja) * | 2018-04-25 | 2019-10-31 | コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag | イオン的に親水化されたポリイソシアネートならびにラジカルスカベンジャーおよび/または過酸化物分解剤 |
WO2020016116A1 (en) * | 2018-07-20 | 2020-01-23 | Covestro Deutschland Ag | Ionically hydrophilized polyisocyanates with improved drying |
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KR102591248B1 (ko) * | 2015-03-16 | 2023-10-20 | 코베스트로 도이칠란트 아게 | 1,5-디이소시아네이토펜탄을 기재로 하는 친수성 폴리이소시아네이트 |
CN107709397B (zh) * | 2015-06-12 | 2020-10-16 | 三井化学株式会社 | 多异氰酸酯组合物、聚氨酯树脂、二液固化型聚氨酯组合物及涂覆材料 |
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WO2019141683A1 (de) * | 2018-01-18 | 2019-07-25 | Covestro Deutschland Ag | Klebstoffe |
JP2019189866A (ja) * | 2018-04-25 | 2019-10-31 | コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag | イオン的に親水化されたポリイソシアネートならびにラジカルスカベンジャーおよび/または過酸化物分解剤 |
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