JP7414274B2 - 粉体塗料組成物 - Google Patents
粉体塗料組成物 Download PDFInfo
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- JP7414274B2 JP7414274B2 JP2020100213A JP2020100213A JP7414274B2 JP 7414274 B2 JP7414274 B2 JP 7414274B2 JP 2020100213 A JP2020100213 A JP 2020100213A JP 2020100213 A JP2020100213 A JP 2020100213A JP 7414274 B2 JP7414274 B2 JP 7414274B2
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- 239000000843 powder Substances 0.000 title claims description 56
- 239000008199 coating composition Substances 0.000 title claims description 40
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- 239000004645 polyester resin Substances 0.000 claims description 43
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- -1 alicyclic diol Chemical class 0.000 claims description 26
- 239000002253 acid Substances 0.000 claims description 18
- 239000000049 pigment Substances 0.000 claims description 18
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 18
- 150000007519 polyprotic acids Polymers 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 239000003973 paint Substances 0.000 claims description 11
- 150000005846 sugar alcohols Polymers 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 150000001412 amines Chemical class 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 239000004611 light stabiliser Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- VMRIVYANZGSGRV-UHFFFAOYSA-N 4-phenyl-2h-triazin-5-one Chemical compound OC1=CN=NN=C1C1=CC=CC=C1 VMRIVYANZGSGRV-UHFFFAOYSA-N 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 239000012964 benzotriazole Substances 0.000 claims description 6
- 230000009477 glass transition Effects 0.000 claims description 6
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 claims description 3
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- 239000000178 monomer Substances 0.000 claims description 2
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- 238000000576 coating method Methods 0.000 description 35
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- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
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- 125000002723 alicyclic group Chemical group 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 125000003368 amide group Chemical group 0.000 description 4
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
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- 230000000052 comparative effect Effects 0.000 description 4
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- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 4
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- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical class N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 4
- 238000005809 transesterification reaction Methods 0.000 description 4
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 4
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical class O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 150000001491 aromatic compounds Chemical class 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 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
- QSAWQNUELGIYBC-UHFFFAOYSA-N cyclohexane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCCCC1C(O)=O QSAWQNUELGIYBC-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical class CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
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- 239000002904 solvent Substances 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- OUPZKGBUJRBPGC-UHFFFAOYSA-N 1,3,5-tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 OUPZKGBUJRBPGC-UHFFFAOYSA-N 0.000 description 2
- UNVGBIALRHLALK-UHFFFAOYSA-N 1,5-Hexanediol Chemical compound CC(O)CCCCO UNVGBIALRHLALK-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- SITYOOWCYAYOKL-UHFFFAOYSA-N 2-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl]-5-(3-dodecoxy-2-hydroxypropoxy)phenol Chemical compound OC1=CC(OCC(O)COCCCCCCCCCCCC)=CC=C1C1=NC(C=2C(=CC(C)=CC=2)C)=NC(C=2C(=CC(C)=CC=2)C)=N1 SITYOOWCYAYOKL-UHFFFAOYSA-N 0.000 description 2
- JFGQHAHJWJBOPD-UHFFFAOYSA-N 3-hydroxy-n-phenylnaphthalene-2-carboxamide Chemical class OC1=CC2=CC=CC=C2C=C1C(=O)NC1=CC=CC=C1 JFGQHAHJWJBOPD-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- GVNWZKBFMFUVNX-UHFFFAOYSA-N Adipamide Chemical compound NC(=O)CCCCC(N)=O GVNWZKBFMFUVNX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 description 2
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- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 2
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- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 description 2
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- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 229960000314 zinc acetate Drugs 0.000 description 1
- 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 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Description
〔1〕下記成分(A)および下記成分(B)の合計量100質量部に対し、下記成分(B)を1.0~15.0質量部、下記成分(C)を0.1~5.0質量部、下記成分(D)を0.1~5.0質量部、下記成分(E)を0.5~5.0質量部含有する粉体塗料組成物、
成分(A):酸価が30~60mg/KOHのポリエステル樹脂
成分(B):硬化剤
成分(C):紫外線吸収剤
成分(D):ヒンダードアミン系光安定剤
成分(E):レベリング剤
〔2〕前記ポリエステル樹脂のガラス転移温度(Tg)が50~70℃である、〔1〕記載の粉体塗料組成物、
〔3〕前記ポリエステル樹脂の数平均分子量(Mn)が1000~10000である、〔1〕または〔2〕記載の粉体塗料組成物、
〔4〕前記硬化剤がβ-ヒドロキシアルキルアミドである、〔1〕~〔3〕のいずれかに記載の粉体塗料組成物、
〔5〕前記紫外線吸収剤が、ベンゾトリアゾール系紫外線吸収剤および/またはヒドロキシフェニルトリアジン系紫外線吸収剤である、〔1〕~〔4〕のいずれかに記載の粉体塗料組成物、
〔6〕エポキシ樹脂を含有しない、〔1〕~〔5〕のいずれかに記載の粉体塗料組成物、に関する。
本実施形態に係る粉体塗料組成物は、酸価が30~60mg/KOHのポリエステル樹脂、硬化剤、紫外線吸収剤、ヒンダードアミン系光安定剤、およびレベリング剤を必須の成分として含有する。なお、本明細書においては、酸価が30~60mg/KOHのポリエステル樹脂を「成分(A)」;硬化剤を「成分(B)」;紫外線吸収剤を「成分(C)」;ヒンダードアミン系光安定剤を「成分(D)」;レベリング剤を「成分(E)」と称する場合がある。
本実施形態に係る粉体塗料組成物は、外観および耐候性を両立した塗膜を形成する観点から、酸価が30~60mg/KOHのポリエステル樹脂を含有することを特徴とする。
本実施形態に係る粉体塗料組成物は、前記のポリエステル樹脂とともに硬化剤を含有する。ポリエステル樹脂は、該樹脂が有する水酸基やカルボキシル基と硬化剤との反応により架橋結合を形成することができる。
本実施形態に係る粉体塗料組成物は、耐候性の観点から、紫外線吸収剤を含有する。紫外線吸収剤は、塗膜に有害な290~380nmの紫外線を吸収し、無害の熱エネルギーに変換し、塗膜に存在する限り半永久的に効果を示すことが知られており、主体樹脂の光沢保持および顔料の変退色に効果を発揮する。
本実施形態に係る粉体塗料組成物は、耐候性の観点から、紫外線吸収剤とともにヒンダードアミン系光安定剤(Hindered Amine Light Stabilizer:HALS)が好適に使用される。HALSは、290nm以上の光を吸収せず、主体樹脂が紫外線や熱により劣化することにより発生するラジカルを捕捉することが知られている。
本実施形態に係る粉体塗料組成物は、外観をより向上させる観点から、レベリング剤を含有する。
本実施形態に係る粉体塗料組成物は、上述した成分に加えて、さらに、ポリエステル樹脂以外の樹脂成分、顔料、表面調整剤、流動調整剤、シリコーン、ワックス、消泡剤、顔料分散剤、酸化防止剤、磁性粉、ベンゾインなどのワキ防止剤、可塑剤、帯電制御剤、抗菌剤、防カビ剤、防虫剤、防藻剤、撥水剤、カップリング剤等を配合してもよい。
本実施形態に係る粉体塗料組成物は、前記成分(A)、(B)、(C)、(D)、(E)およびその他添加剤の混合物を、ヘンシェルミキサー等でドライブレンドした後、混練機を用いて、例えば100~160℃にて溶融混練し、得られた混練物を冷却後、ハンマー式衝撃粉砕機で微粉砕し、フルイで分級することにより製造することができる。
得られた粉体塗料組成物は、公知の静電塗装法や流動浸漬塗装法等により被塗物に塗装、焼き付けされ、焼き付け後の乾燥膜厚が30~150μm、好ましくは50~80μmmとなるように塗装することができる。焼き付けは、例えば170~230℃で10~30分間の条件で行うことができる。粉体塗料組成物が塗装可能な基材は特に限定されず、例えば、亜鉛、鉄、アルミニウム、マグネシウム、鋼およびこれらの合金、亜鉛めっき鋼板等の金属基材、これらの金属表面に化成処理被膜が形成されたもの、これらの金属表面を陽極酸化処理したもの、これらの金属基材に必要に応じてプライマー塗装や電着塗装等を施した塗装金属基材等が挙げられる。上記化成処理被膜を形成するために用いる化成処理液としては、例えば、リン酸塩処理液、ジルコニウム処理液およびクロメート処理液等が挙げられる。
ポリエステル樹脂1~5、7、8:後述の製造例1で製造したポリエステル樹脂
ポリエステル樹脂6:ダイセル・オルネクス(株)製のCRYLCOAT 2630-2(酸価:33mg/KOH、Tg:62℃、Mn:2500)
エポキシ樹脂:DIC(株)製のEPICLON 4050
硬化剤:EMS-CHEMIE AG社製のPrimid XL-552(β-ヒドロキシアルキルアミド)
紫外線吸収剤1:BASF社製のTinuvin326(ベンゾトリアゾール系紫外線吸収剤)
紫外線吸収剤2:BASF社製のTinuvin400(ヒドロキシフェニルトリアジン系紫外線吸収剤)
HALS:BASF社製のTinuvin292
レベリング剤:ビックケミー・ジャパン(株)製のBYK 360P(二酸化ケイ素に吸着したポリアクリレート)
防錆顔料:テイカ(株)製のK-WHITE ♯105
顔料分散剤:ビックケミー・ジャパン(株)製のBYK 3951P
酸化防止剤:BASF社製のIrganox 245
テレフタル酸20mol(3320g)、イソフタル酸80mol(13280g)、水10質量%混合ネオペンチルグリコール100mol(11556g)、およびエチレングリコール20mol(1240g)を反応槽に仕込み、圧力をかけ、温度260℃で4時間エステル化反応を行った。得られたエステル化物を重縮合反応槽に移送した後、重縮合触媒としてジブチルスズオキサイドを添加し、減圧し、280℃で4時間重縮合反応を行い、極限粘度の樹脂を得た。次いで、得られた樹脂に、イソフタル酸8.5mol(l(1411g)を添加して、常圧下、250℃で2時間解重合反応を行い、ポリエステル樹脂1を得た。また、ポリエステル樹脂1と同様の方法で仕込み組成を変更し、ポリエステル樹脂2~5、7、8を得た。得られた各ポリエステル樹脂の酸化(mg/KOH)、ガラス転移温度(Tg)、および数平均分子量(Mn)を下表に示す。
表2に示す配合処方に従い、各配合剤をヘンシェルミキサーでドライブレンドした後、混練機を用いて、約100℃で溶融混練した。得られた混練物を冷却後、ハンマー式衝撃粉砕機で微粉砕し、200メッシュの金網で分級することにより、実施例1~9および比較例1~9の粉体塗料組成物を調製した。なお、表2中の(-OH)/(-COOH)は、ポリエステル樹脂が有するカルボキシル基(-COOH)の数に対する、β-ヒドロキシアルキルアミドが有する水酸基(-OH)の数を示す。
冷延鋼板(70mm×150mm×0.8mm)にリン酸亜鉛系化成処理を施して化成処理皮膜を形成した。次いで、該化成処理皮膜上に、各粉体塗料組成物を、静電塗装機PG-1(旭サナック(株)製)を使用して乾燥膜厚が70μmになるように静電粉体塗装した。次いで、被塗物表面温度160℃で保持時間20分間の条件で加熱乾燥を行って各試験板を得た。
BYK-Gardner社製のマイクロウェーブスキャンを用いて、塗膜を形成した表面のWave Scan値のロングウェーブ(Lw値)を測定した。Lw値は凹凸量を示す指標であり、Lw値が小さいほど塗膜表面が平滑であることを示す。Lw値は50以下を性能目標値とする。
キセノンアークランプ式耐候性試験機(XWOM)を用い、JIS K 5600-7-7:2008に準拠し、照射強度180W/m2にて720時間の促進曝露試験を行った。曝露前の試験板を基準に、光沢保持率および色差ΔE*を測定した。なお、色差の測定には、色差計(コニカミノルタ(株)製のCM-3500d)を用いた。光沢の測定には、BYK-Gardner社製のマイクロトリグロス光沢計を用いた。光沢値は20度光沢を評価した。光沢保持率は70%以上、色差ΔE*は2.5以下をそれぞれ性能目標値とする。
JIS K 5600-5-6:1999に記載の碁盤目テープ法に準じて、塗装板の塗膜面に素地に達するようにナイフを使用して2mmの間隔で縦、横それぞれ平行に11本の切目を入れてゴバン目を形成し、その表面にセロハン粘着テープを貼着し、テープを急激に剥離した後のゴバン目塗面を評価した。100個のゴバン目のうち、ゴバン目中50%以上の塗膜が残存するゴバン目を数えた。100/100を性能目標値とする。
JIS K 5600-5-3(デュポン式)に準拠し、落下高50cmに対する塗膜の抵抗性について評価するため、ポンチΦ1/2インチおよび500gのおもりを用いて塗膜の割れ、剥離を観察した。塗膜に割れおよび剥離がないものを「+」、塗膜に割れおよび/または剥離があるものを「-」と表示した。
試験板の塗膜硬度について、JIS K 5600-5-4:1999に規定する鉛筆引っかき試験を行い、塗膜の破れによる評価を行った。塗膜が破れる鉛筆硬度がH以上であることを性能目標値とする。
溶剤系補修用塗料(川上塗料(株)製のウレオール600)を前記の試験板に塗り重ねた。得られた試験板につき、上記付着性試験を行い、テープを急激に剥離した後のゴバン目塗面を評価した。
Claims (10)
- 下記成分(A)および下記成分(B)の合計量100質量部に対し、下記成分(B)を1.0~15.0質量部、下記成分(C)を0.1~5.0質量部、下記成分(D)を0.1~5.0質量部、下記成分(E)を0.5~5.0質量部含有し、
下記酸価が30~60mg/KOHのポリエステル樹脂が、多塩基酸に由来する構造単位として1,4-シクロヘキサンジカルボン酸を含み、かつ多価アルコールに由来する構造単位として脂環族ジオールを含むポリエステル樹脂でない粉体塗料組成物(ただし、α-メチルスチレン、イソプロペニルトルエン、インデンからなる群から選択される少なくとも一種類の芳香族系単量体を必須として構成される芳香族系炭化水素樹脂を含有する粉体塗料組成物を除く)。
成分(A):酸価が30~60mg/KOHのポリエステル樹脂
成分(B):硬化剤
成分(C):紫外線吸収剤
成分(D):ヒンダードアミン系光安定剤
成分(E):レベリング剤 - 前記ポリエステル樹脂のガラス転移温度(Tg)が50~70℃である、請求項1記載の粉体塗料組成物。
- 前記ポリエステル樹脂の数平均分子量(Mn)が1000~10000である、請求項1または2記載の粉体塗料組成物。
- 前記硬化剤がβ-ヒドロキシアルキルアミドである、請求項1~3のいずれか一項に記載の粉体塗料組成物。
- 前記紫外線吸収剤が、ベンゾトリアゾール系紫外線吸収剤および/またはヒドロキシフェニルトリアジン系紫外線吸収剤である、請求項1~4のいずれか一項に記載の粉体塗料組成物。
- エポキシ樹脂を含有しない、請求項1~5のいずれか一項に記載の粉体塗料組成物。
- さらに顔料を含有する、請求項1~6のいずれか一項に記載の粉体塗料組成物。
- 成分(A)および成分(B)の合計量100質量部に対する成分(C)の含有量が0.1~2.0質量部である、請求項1~7のいずれか一項に記載の粉体塗料組成物。
- 成分(A)および成分(B)の合計量100質量部に対する成分(D)の含有量が0.1~3.0質量部である、請求項1~8のいずれか一項に記載の粉体塗料組成物。
- 前記酸価が30~60mg/KOHのポリエステル樹脂が、多塩基酸に由来する構造単位として芳香族多塩基酸を含むポリエステル樹脂である、請求項1~9のいずれか一項に記載の粉体塗料組成物。
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JP2007153974A (ja) | 2005-12-02 | 2007-06-21 | Mitsui Chemicals Inc | 硬化性粉体塗料 |
JP2013512095A (ja) | 2009-12-01 | 2013-04-11 | サイテック サーフェース スペシャリティーズ、エス.エイ. | セラミック基材用塗料 |
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US5097006A (en) * | 1990-11-21 | 1992-03-17 | U C B S.A. | Weatherable powder coating compositions |
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JP2007153974A (ja) | 2005-12-02 | 2007-06-21 | Mitsui Chemicals Inc | 硬化性粉体塗料 |
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