JP6793753B2 - 二成分エポキシ樹脂塗料 - Google Patents
二成分エポキシ樹脂塗料 Download PDFInfo
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- JP6793753B2 JP6793753B2 JP2018554496A JP2018554496A JP6793753B2 JP 6793753 B2 JP6793753 B2 JP 6793753B2 JP 2018554496 A JP2018554496 A JP 2018554496A JP 2018554496 A JP2018554496 A JP 2018554496A JP 6793753 B2 JP6793753 B2 JP 6793753B2
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- Prior art keywords
- epoxy resin
- component
- weight
- curing agent
- amine
- Prior art date
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- 239000003822 epoxy resin Substances 0.000 title claims description 176
- 229920000647 polyepoxide Polymers 0.000 title claims description 176
- 239000003973 paint Substances 0.000 title claims description 46
- 239000003795 chemical substances by application Substances 0.000 claims description 115
- 150000001412 amines Chemical class 0.000 claims description 108
- 238000000576 coating method Methods 0.000 claims description 85
- 239000011248 coating agent Substances 0.000 claims description 76
- 239000004952 Polyamide Substances 0.000 claims description 51
- 229920002647 polyamide Polymers 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 36
- 229920005989 resin Polymers 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 34
- 125000002723 alicyclic group Chemical group 0.000 claims description 30
- 239000000945 filler Substances 0.000 claims description 29
- 239000003208 petroleum Substances 0.000 claims description 23
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 18
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- -1 defoamers Substances 0.000 claims description 13
- 239000004593 Epoxy Substances 0.000 claims description 12
- 239000002270 dispersing agent Substances 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 10
- 125000000524 functional group Chemical group 0.000 claims description 9
- 239000000049 pigment Substances 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000002562 thickening agent Substances 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000006224 matting agent Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 4
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 4
- 150000004760 silicates Chemical class 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 4
- 150000003512 tertiary amines Chemical class 0.000 claims description 4
- 125000006832 (C1-C10) alkylene group Chemical group 0.000 claims description 3
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
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- 125000005843 halogen group Chemical group 0.000 claims 1
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 1
- 238000001723 curing Methods 0.000 description 125
- 239000000203 mixture Substances 0.000 description 16
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- 238000000034 method Methods 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 8
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- 238000006243 chemical reaction Methods 0.000 description 5
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 5
- 238000013035 low temperature curing Methods 0.000 description 5
- 150000002989 phenols Chemical class 0.000 description 5
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
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- 125000003118 aryl group Chemical group 0.000 description 4
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 4
- 125000003700 epoxy group Chemical group 0.000 description 4
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 239000010456 wollastonite Substances 0.000 description 4
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- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 3
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- 239000004841 bisphenol A epoxy resin Substances 0.000 description 3
- 239000013065 commercial product Substances 0.000 description 3
- VKIRRGRTJUUZHS-UHFFFAOYSA-N cyclohexane-1,4-diamine Chemical compound NC1CCC(N)CC1 VKIRRGRTJUUZHS-UHFFFAOYSA-N 0.000 description 3
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
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- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 3
- 229910000165 zinc phosphate Inorganic materials 0.000 description 3
- AHDSRXYHVZECER-UHFFFAOYSA-N 2,4,6-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(CN(C)C)=C(O)C(CN(C)C)=C1 AHDSRXYHVZECER-UHFFFAOYSA-N 0.000 description 2
- JZUHIOJYCPIVLQ-UHFFFAOYSA-N 2-methylpentane-1,5-diamine Chemical compound NCC(C)CCCN JZUHIOJYCPIVLQ-UHFFFAOYSA-N 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
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- 238000010533 azeotropic distillation Methods 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
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- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
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- 238000010348 incorporation Methods 0.000 description 2
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- 238000009736 wetting Methods 0.000 description 2
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 1
- ZMBQZWCDYKGVLW-UHFFFAOYSA-N 1-methylcyclohexa-3,5-diene-1,2-diamine Chemical compound CC1(N)C=CC=CC1N ZMBQZWCDYKGVLW-UHFFFAOYSA-N 0.000 description 1
- PZKPUGIOJKNRQZ-UHFFFAOYSA-N 1-methylcyclohexa-3,5-diene-1,3-diamine Chemical compound CC1(N)CC(N)=CC=C1 PZKPUGIOJKNRQZ-UHFFFAOYSA-N 0.000 description 1
- JOLVYUIAMRUBRK-UHFFFAOYSA-N 11',12',14',15'-Tetradehydro(Z,Z-)-3-(8-Pentadecenyl)phenol Natural products OC1=CC=CC(CCCCCCCC=CCC=CCC=C)=C1 JOLVYUIAMRUBRK-UHFFFAOYSA-N 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- CIPOCPJRYUFXLL-UHFFFAOYSA-N 2,3,4-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC=C(O)C(CN(C)C)=C1CN(C)C CIPOCPJRYUFXLL-UHFFFAOYSA-N 0.000 description 1
- NKANYVMWDXJHLE-UHFFFAOYSA-N 2-[[2-(oxiran-2-ylmethoxy)phenoxy]methyl]oxirane Chemical class C1OC1COC1=CC=CC=C1OCC1CO1 NKANYVMWDXJHLE-UHFFFAOYSA-N 0.000 description 1
- FSYPIGPPWAJCJG-UHFFFAOYSA-N 2-[[4-(oxiran-2-ylmethoxy)phenoxy]methyl]oxirane Chemical class C1OC1COC(C=C1)=CC=C1OCC1CO1 FSYPIGPPWAJCJG-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
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- 239000009261 D 400 Substances 0.000 description 1
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- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Description
選択された定義
アミン成分
CC=C(重量%)=n×MC=C/Wポリアミド硬化剤
式中、
CC=Cは、エチレン性不飽和基の濃度を表し、
nは、ポリアミド硬化剤を調製するための原料中に含まれるエチレン性不飽和基の総モル量を表し、
MC=Cは、炭素−炭素二重結合のモル質量を表し、
Wポリアミド硬化剤は、調製されたポリアミド硬化剤の総重量を表す。
COH(重量%)=n×MOH/Wマンニッヒ塩基硬化剤
式中、
COHは、フェノール性ヒドロキシ基の濃度を表し、
nは、マンニッヒ塩基硬化剤を調製するための原料に含まれるフェノール性ヒドロキシ基の総モル量を表し、
MOHは、フェノール性ヒドロキシ基のモル質量を表し、
Wマンニッヒ塩基硬化剤は、調製したマンニッヒ塩基硬化剤の総重量を表す。
エポキシ樹脂成分
Dは、それぞれ独立して、−S−、−S−S−、−SO−、−SO2−、−CO2−、−CO−、−O−、C1〜C10アルキレン、C1〜C5アルキレンまたはC1〜C3アルキレン、例えば、−CH2−または−C(CH3)2−を表し、
Yは、それぞれ独立して、ハロゲン、例えば、F、Cl、BrまたはI、または場合により置換されていてもよい一価C1〜C10炭化水素基、例えば、場合により置換されていてもよいメチル、エチル、ビニル、プロピル、アリルまたはブチルを表し、
mは、それぞれ独立して、0、1、2、3または4を表し、
nは、0〜4の整数、例えば、0、1、2、3または4を表す。
ポットライフ試験は、本開示のエポキシ樹脂塗料の似成分を混合し、得られた混合物を20±1℃の室温に置き、その系の粘度が、初期粘度の最大でも2倍に達するまでの期間を決定することによって行われた。
次いで、塩水噴霧試験を受けたパネルを、膨れ評価を用いたクロスハッチ接着試験によって、耐腐食性について分析した。GB/T1771規格では、膨れは、0〜10のスケールで評価され、膨れ評価0は、10面積%未満のコーティング膨れを表し、膨れ評価10は、100面積%のコーティング膨れを表し、膨れ評価6は、60面積%以上70面積%未満のコーティング膨れを意味する。コーティングの膨れ面積が大きいほど、そのコーティングがより低い耐腐食性を有することを示す。
ポリアミド硬化剤の調製
室温で、1,4−ジアミノ−シクロヘキサン、エチレンジアミン、m−フェニレンジアミンの重量比1:1:1の混合物150gと、Union Campから入手可能なNo.14のダイマー酸100gを、温度計、トップスターラー、気体注入口および蒸留ユニットを取り付けた4ッ口フラスコに加えた。得られた反応混合物を100〜120℃まで加熱した。共沸蒸留により、生成した水を反応混合物から除去した。反応水が生成しなくなったら、反応を止めた。得られた生成物は、本発明のポリアミド硬化剤と決定される。
室温で、1,4−ジアミノ−シクロヘキサン、エチレンジアミン、m−フェニレンジアミンの重量比1:1:1の混合物150gと、1:1ホルムアルデヒドフェノール付加物100gを、温度計、トップスターラー、気体注入口および蒸留ユニットを取り付けた4ッ口フラスコに加えた。得られた反応混合物を100〜105℃まで加熱した。共沸蒸留により、生成した水を反応混合物から除去した。反応水が生成しなくなったら、反応を止めた。得られた生成物は、本発明のマンニッヒ塩基硬化剤と決定される。
混合容器に、上で調製したポリアミド硬化剤とマンニッヒ塩基硬化剤を重量比1:1で混合し、得られた混合物に1%のDMP30を添加し、これによって、本発明のアミン成分を得た。
混合容器に、ビスフェノールAエポキシ樹脂45.5kgと、液状石油樹脂15kgと、1〜3%のリン酸亜鉛、3〜6%のタルク粉末、0.6〜1.3%のイオン交換シリカ、15〜25%の沈殿硫酸バリウム、3〜6%のウォラストナイトを含むフィラーパッケージ35kgと、0.1〜5%のポリエーテル変性有機シロキサン95〜99.9%の酢酸ブチルを含むさらなる添加剤0.5kgと、エタノールを加え、均一になるまで800〜1000rpmで撹拌しつつ混合し、それによって本発明のエポキシ樹脂成分を得た。
塗布前に、上で調製したエポキシ樹脂成分とアミン成分を重量比100:12で混合し、そのポットライフを調べた。試験後、この二成分エポキシ樹脂塗料は、20℃でのポットライフが6時間であった。
コーティング配合物
上で調製したエポキシ樹脂成分と市販のポリアミド硬化剤を重量比100:12で混合し、そのポットライフを調べた。試験後、この二成分エポキシ樹脂塗料は、20℃でのポットライフが10時間であった。
上で調製したエポキシ樹脂成分と市販のマンニッヒ塩基硬化剤を重量比100:12で混合し、そのポットライフを調べた。試験後、この二成分エポキシ樹脂塗料は、20℃でのポットライフが7時間であった。
適量の上述の二成分エポキシ樹脂塗料を、乾燥膜厚が約50μmのコーティングが作られるように、パネルにスプレー塗装した。試験方法に記載されている通り、50℃での低温硬化時間、40℃での高温硬化時間、コーティングの耐塩水噴霧性を測定し、以下の表2に列挙した。
[1] 二成分エポキシ樹脂塗料であって、
(a)エポキシ樹脂成分と、
(b)エポキシ樹脂成分を硬化させるためのアミン成分とを含み、このアミン成分は、
(i)少なくとも1つのポリアミド硬化剤と、
(ii)少なくとも1つのマンニッヒ塩基硬化剤とを含み、
ポリアミド硬化剤およびマンニッヒ塩基硬化剤のうち少なくとも1つが、少なくとも1つの脂環式多官能アミンを含む1つ以上の多官能アミンから誘導され、
この脂環式多官能アミンが、多官能アミンの総量に対して30重量%以上の量で存在し、エポキシ樹脂成分(a)とアミン成分(b)との重量比が、100:8〜100:20である、二成分エポキシ樹脂塗料。
[2] 前記脂環式多官能アミンが、前記多官能アミンの総量に対して40重量%以上の量で存在する、[1]に記載の二成分エポキシ樹脂塗料。
[3] 前記脂環式多官能アミンが、少なくとも1つのシクロヘキシル、シクロヘプチル、シクロペンチルまたはこれらの組み合わせを含有する多官能アミンを含む、[1]または[2]のいずれか一項に記載の二成分エポキシ樹脂塗料。
[4] 前記マンニッヒ塩基硬化剤と前記ポリアミド硬化剤との重量比が、10:90〜90:10である、[1]に記載の二成分エポキシ樹脂塗料。
[5] 前記ポリアミド硬化剤は、アミン価が100mg KOH/硬化剤(g)以上であり、当該ポリアミド硬化剤の総重量に対して1重量%以上のエチレン性不飽和官能基を含む、[1]に記載の二成分エポキシ樹脂塗料。
[6] 前記ポリアミド硬化剤は、25℃での粘度が2000mPa・s以上である、[5]に記載の二成分エポキシ樹脂塗料。
[7] 前記マンニッヒ塩基硬化剤は、アミン価が150mg KOH/硬化剤(g)以上であり、当該マンニッヒ塩基硬化剤の総重量に対して1重量%以上のフェノール性ヒドロキシ基を含む、[1]に記載の二成分エポキシ樹脂塗料。
[8] 前記マンニッヒ塩基硬化剤は、25℃での粘度が2000mPa・s以上である、[7]に記載の二成分エポキシ樹脂塗料。
[9] 前記アミン成分が、さらに、三級アミン含有基およびフェノール性ヒドロキシ基から選択される硬化促進剤を含む、[1]に記載の二成分エポキシ樹脂塗料。
[10] 前記エポキシ樹脂成分が、当該エポキシ樹脂成分の総重量に対して、
10〜85重量%のエポキシ樹脂と、
1〜20重量%の液体石油樹脂と、
5〜70重量%のフィラーパッケージと、
湿潤分散剤、消泡剤、増粘剤、艶消し剤、溶媒、顔料、またはこれらの任意の組み合わせを含む、0〜15重量%のさらなる添加剤とを含む、[1]〜[9]のいずれか一項に記載の二成分エポキシ樹脂塗料。
[11] 前記エポキシ樹脂は、エポキシ価が0.1当量/エポキシ樹脂100g以上であり、エポキシ価は、100gのエポキシ樹脂に含まれるエポキシ官能基のモル数であると定義される、[10]に記載の二成分エポキシ樹脂塗料。
[12] 前記エポキシ樹脂は、25℃での粘度が10000mPa・s以下である、[10]に記載の二成分エポキシ樹脂塗料。
[13] 前記エポキシ樹脂が、多価フェノールのジグリシジルエーテル、ポリアルコールのジグリシジルエーテル、またはノボラック樹脂のポリグリシジルエーテル、またはこれらの組み合わせを含む、[10]に記載の二成分エポキシ樹脂塗料。
[14] 前記エポキシ樹脂が、式(I):
式中、Dは、それぞれ独立して、−S−、−S−S−、−SO−、−SO2−、−CO2−、−CO−、−O−またはC1〜C10アルキレンを表し、Yは、それぞれ独立して、ハロゲンを表すか、または場合により置換されていてもよい一価C1〜C10炭化水素基を表し、mは、それぞれ独立して、0、1、2、3または4を表し、nは、0〜4の整数を表す、[13]に記載の二成分エポキシ樹脂塗料。
[15] 前記液体石油樹脂は、分子量が2000g/mol以下である、[10]に記載の二成分エポキシ樹脂塗料。
[16] 前記フィラーパッケージは、当該フィラーパッケージの総重量に対して、
1〜5重量%の1つ以上の防錆剤と、
5〜40重量%の1つ以上のケイ酸塩と、
10〜40重量%の1つ以上の硫酸塩と、
0〜25重量%の1つ以上の炭酸塩と、
0〜20重量%の1つ以上の二酸化ケイ素を含む、[10]に記載の二成分エポキシ樹脂塗料。
[17] プライマー、トップコート、中間コートまたはDTMコーティングである、[1]〜[16]のいずれか一項に記載の二成分エポキシ樹脂塗料。
Claims (17)
- (a)エポキシ樹脂成分と、
(b)エポキシ樹脂成分を硬化させるためのアミン成分と、
を含み、エポキシ樹脂成分(a)とアミン成分(b)との重量比が、100:8〜100:20である、二成分エポキシ樹脂塗料であって、
このアミン成分は、
(i)少なくとも1つのポリアミド硬化剤と、
(ii)少なくとも1つのマンニッヒ塩基硬化剤と、
を含み、ポリアミド硬化剤およびマンニッヒ塩基硬化剤のそれぞれが、少なくとも1つの脂環式多官能アミンを含む1つ以上の多官能アミンから誘導され、この脂環式多官能アミンが、多官能アミンの総量に対して30重量%以上の量で存在する、二成分エポキシ樹脂塗料。 - 前記脂環式多官能アミンが、前記多官能アミンの総量に対して40重量%以上の量で存在する、請求項1に記載の二成分エポキシ樹脂塗料。
- 前記脂環式多官能アミンが、少なくとも1つのシクロヘキシル、シクロヘプチル、シクロペンチルまたはこれらの組み合わせを含有する多官能アミンを含む、請求項1または2のいずれか一項に記載の二成分エポキシ樹脂塗料。
- 前記マンニッヒ塩基硬化剤と前記ポリアミド硬化剤との重量比が、10:90〜90:10である、請求項1に記載の二成分エポキシ樹脂塗料。
- 前記ポリアミド硬化剤は、アミン価が100mg KOH/硬化剤(g)以上であり、当該ポリアミド硬化剤の総重量に対して1重量%以上のエチレン性不飽和官能基を含む、請求項1に記載の二成分エポキシ樹脂塗料。
- 前記ポリアミド硬化剤は、25℃での粘度が2000mPa・s以上である、請求項5に記載の二成分エポキシ樹脂塗料。
- 前記マンニッヒ塩基硬化剤は、アミン価が150mg KOH/硬化剤(g)以上であり、当該マンニッヒ塩基硬化剤の総重量に対して1重量%以上のフェノール性ヒドロキシ基を含む、請求項1に記載の二成分エポキシ樹脂塗料。
- 前記マンニッヒ塩基硬化剤は、25℃での粘度が2000mPa・s以上である、請求項7に記載の二成分エポキシ樹脂塗料。
- 前記アミン成分が、さらに、三級アミン含有基およびフェノール性ヒドロキシ基から選択される硬化促進剤を含む、請求項1に記載の二成分エポキシ樹脂塗料。
- 前記エポキシ樹脂成分が、当該エポキシ樹脂成分の総重量に対して、
10〜85重量%のエポキシ樹脂と、
1〜20重量%の液体石油樹脂と、
5〜70重量%のフィラーパッケージと、
湿潤分散剤、消泡剤、増粘剤、艶消し剤、溶媒、顔料、またはこれらの任意の組み合わせを含む、0〜15重量%のさらなる添加剤と、
を含む、請求項1〜9のいずれか一項に記載の二成分エポキシ樹脂塗料。 - 前記エポキシ樹脂は、エポキシ価が0.1当量/エポキシ樹脂100g以上であり、エポキシ価は、100gのエポキシ樹脂に含まれるエポキシ官能基のモル数であると定義される、請求項10に記載の二成分エポキシ樹脂塗料。
- 前記エポキシ樹脂は、25℃での粘度が10000mPa・s以下である、請求項10に記載の二成分エポキシ樹脂塗料。
- 前記エポキシ樹脂が、多価フェノールのジグリシジルエーテル、ポリアルコールのジグリシジルエーテル、またはノボラック樹脂のポリグリシジルエーテル、またはこれらの組み合わせを含む、請求項10に記載の二成分エポキシ樹脂塗料。
- 前記液体石油樹脂は、分子量が2000g/mol以下である、請求項10に記載の二成分エポキシ樹脂塗料。
- 前記フィラーパッケージは、当該フィラーパッケージの総重量に対して、
1〜5重量%の1つ以上の防錆剤と、
5〜40重量%の1つ以上のケイ酸塩と、
10〜40重量%の1つ以上の硫酸塩と、
0〜25重量%の1つ以上の炭酸塩と、
0〜20重量%の1つ以上の二酸化ケイ素、
を含む、請求項10に記載の二成分エポキシ樹脂塗料。 - プライマー、トップコート、中間コートまたはDTMコーティングである、請求項1〜16のいずれか一項に記載の二成分エポキシ樹脂塗料。
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