JP6454018B2 - 高弾性ポリエステル変性ウレタン樹脂及びこれを含むクリアコート組成物 - Google Patents
高弾性ポリエステル変性ウレタン樹脂及びこれを含むクリアコート組成物 Download PDFInfo
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- JP6454018B2 JP6454018B2 JP2017534558A JP2017534558A JP6454018B2 JP 6454018 B2 JP6454018 B2 JP 6454018B2 JP 2017534558 A JP2017534558 A JP 2017534558A JP 2017534558 A JP2017534558 A JP 2017534558A JP 6454018 B2 JP6454018 B2 JP 6454018B2
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- polyester
- urethane resin
- aliphatic
- modified urethane
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- 229920005989 resin Polymers 0.000 title claims description 63
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- 229920005862 polyol Polymers 0.000 claims description 24
- 125000002723 alicyclic group Chemical group 0.000 claims description 15
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 229920000728 polyester Polymers 0.000 claims description 11
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- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 5
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical group O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 5
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- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 5
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- 125000002843 carboxylic acid group Chemical group 0.000 claims description 3
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- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 claims description 2
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- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims description 2
- LAWHHRXCBUNWFI-UHFFFAOYSA-N 2-pentylpropanedioic acid Chemical compound CCCCCC(C(O)=O)C(O)=O LAWHHRXCBUNWFI-UHFFFAOYSA-N 0.000 claims 1
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- QBDAFARLDLCWAT-UHFFFAOYSA-N 2,3-dihydropyran-6-one Chemical compound O=C1OCCC=C1 QBDAFARLDLCWAT-UHFFFAOYSA-N 0.000 description 1
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- SQQOYWYEAFEMSV-UHFFFAOYSA-N COC(C(OCNC1=NC(=NC(=N1)N)N)(OC)OC)CC(OC)(OC)OC Chemical compound COC(C(OCNC1=NC(=NC(=N1)N)N)(OC)OC)CC(OC)(OC)OC SQQOYWYEAFEMSV-UHFFFAOYSA-N 0.000 description 1
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- HADQPSVKQVPWCO-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methyl methanimidate Chemical compound NC1=NC(N)=NC(NCOC=N)=N1 HADQPSVKQVPWCO-UHFFFAOYSA-N 0.000 description 1
- YGCOKJWKWLYHTG-UHFFFAOYSA-N [[4,6-bis[bis(hydroxymethyl)amino]-1,3,5-triazin-2-yl]-(hydroxymethyl)amino]methanol Chemical compound OCN(CO)C1=NC(N(CO)CO)=NC(N(CO)CO)=N1 YGCOKJWKWLYHTG-UHFFFAOYSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
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- 150000001412 amines Chemical class 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- RSOILICUEWXSLA-UHFFFAOYSA-N bis(1,2,2,6,6-pentamethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(C)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(C)C(C)(C)C1 RSOILICUEWXSLA-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 150000002009 diols Chemical class 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- CJMZLCRLBNZJQR-UHFFFAOYSA-N ethyl 2-amino-4-(4-fluorophenyl)thiophene-3-carboxylate Chemical compound CCOC(=O)C1=C(N)SC=C1C1=CC=C(F)C=C1 CJMZLCRLBNZJQR-UHFFFAOYSA-N 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
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- XQAABEDPVQWFPN-UHFFFAOYSA-N octyl 3-[3-(benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl]propanoate Chemical compound CC(C)(C)C1=CC(CCC(=O)OCCCCCCCC)=CC(N2N=C3C=CC=CC3=N2)=C1O XQAABEDPVQWFPN-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
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- 229920003009 polyurethane dispersion Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
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Description
本発明のポリエステル変性ウレタン樹脂は、樹脂の構成単位として、(1)脂肪族多価アルコールと脂肪族または脂環族多価酸から得られるポリエステル由来単位、(2)カプロラクトンポリオール由来単位、及び(3)脂肪族ジイソシアネート由来単位を含む。
温度計、撹拌装置を備えた合成用4つ口のフラスコに、ブタンジオール7g、ネオペンチルグリコール7g、トリメチロールプロパン4g、シクロヘキシルジカルボン酸12g、ヘキサンジカルボン酸7gを順次投入した後、窒素ガスを供給しながら210℃に徐々に昇温した。昇温後、反応物を固相の原料が完全に溶解されて透明な状態を保つまで維持し、その後、カラムの上部温度が下降したとき、キシレン還流条件で反応を進め、酸価10以下となったら冷却した後、キシレン24gで希釈した。中間体ポリエステル樹脂が準備された後、80℃以下でカプロラクトンポリオール20g、ヘキサメチレンジイソシアネート5g、プロピレングリコールモノメチルエーテルアセテート15gを入れて100℃で反応させた。反応が進められるにつれてイソシアネートの含量が「0」になったとき、反応を終了した。合成されたポリエステル変性ウレタン樹脂の酸価は5mgKOH/g、水酸基価は77mgKOH/gであった。
温度計、撹拌装置を備えた合成用4つ口のフラスコに、ブタンジオール10g、ネオペンチルグリコール7g、トリメチロールプロパン4g、シクロヘキシルジカルボン酸11g、ヘキサンジカルボン酸6gを順次投入した後、窒素ガスを供給しながら210℃に徐々に昇温した。昇温後、反応物を固相の原料が完全に溶解されて透明な状態を保つまで維持し、その後、カラムの上部温度が下降したとき、キシレン還流条件で反応を進め、酸価40以下となったら冷却した後、キシレン22gで希釈した。中間体ポリエステル樹脂が準備された後、80℃以下でカプロラクトンポリオール20g、ヘキサメチレンジイソシアネート3g、プロピレングリコールモノメチルエーテルアセテート15gを入れて100℃で反応させた。反応が進められるにつれてイソシアネートの含量が「0」になったとき、反応を終了した。合成されたポリエステル変性ウレタン樹脂の酸価は30mgKOH/g、水酸基価は150mgKOH/gであった。
温度計、撹拌装置を備えた合成用4つ口のフラスコに、ブタンジオール12g、ネオペンチルグリコール9g、トリメチロールプロパン4g、シクロヘキシルジカルボン酸9g、ヘキサンジカルボン酸4gを順次投入した後、窒素ガスを供給しながら210℃に徐々に昇温した。昇温後、反応物を固相の原料が完全に溶解されて透明な状態を保つまで維持し、その後、カラムの上部温度が下降したとき、キシレン還流条件で反応を進め、酸価80以下となったら冷却した後、キシレン24gで希釈した。中間体ポリエステル樹脂が準備された後、80℃以下でカプロラクトンポリオール20g、ヘキサメチレンジイソシアネート3g、プロピレングリコールモノメチルエーテルアセテート15gを入れて100℃で反応させた。反応が進められるにつれてイソシアネートの含量が「0」になったとき、反応を終了した。合成されたポリエステル変性ウレタン樹脂の酸価は60mgKOH/g、水酸基価は280mgKOH/gであった。
前記合成例1、2、3で製造したポリエステル変性ウレタン樹脂1、2、3を用いて下記表1に示した組成で混合した後、最終粘度をフォードカップ#4で35秒に合わせて自動車用クリアコート組成物を製造した。電着面上に別に製造された自動車用水性塗料第1ベースコート(乾燥塗膜厚さ:12〜16ミクロン)及び第2ベースコート(乾燥塗膜厚さ:10〜20ミクロン)をベル塗装した後、80℃で5分間ホットエアを吹き込んで塗料内に残存する水を蒸発させた。その上に実施例1、2、3、4及び比較例1、2、3のクリアコート組成物をそれぞれ塗装し、一般のオーブンで140℃にて25分間硬化させて最終塗膜を形成した。
メラミン硬化剤:アルキル化メラミン樹脂(cymel 1168, Cytec社)
触媒:ドデシルベンゼンスルホン酸タイプの酸触媒(NACURE 5225, King Industries社)
レベリング剤:シリコーンレベリング剤(BYK-331, BYK社)
光安定剤1:ベンゾトリアゾール系(Tinuvin 384, BASF社)
光安定剤2:Hinderd Amine Light Stabilizer(Tinuvin292, BASF社)
(2)付着性:2mmのクロスカット100個を製作してから、スコッチテープを用いて引き剥がした後、問題がないときに「良好」と判断し、刃のクロスカッティング部位からも落ちるものがないときに「優秀」と評価する。
(3)耐スクラッチ性:自動車の耐スクラッチ性測定機(AMTEC-KISTER)を用いて完成された塗膜のスクラッチ発生に対する抵抗度を測定する方法であって、試験前後の塗膜表面の20度光沢を測定して光沢保持率(%)を計算した後、評価する(高いほど有利である)。その測定の結果は、光沢保持率(%)が70%以上であれば◎-優秀、60〜65%であれば○-良好、55〜60%であれば△-普通、55%以下であれば×-不良と判定
(4)耐寒チッピング性:-20℃で3時間放置した後、50gのチッピングストーンを用いて5barの圧力で50gのチッピングストーンを押し出し、塗膜の表面を打つ方法を用いる。1mm以下の大きさの損傷が10個以下であるときに「優秀」、1〜2mm以下の大きさの損傷が10個以下であるときに「良好」、2〜3mm以下の大きさの損傷が10個以下であるときに「普通」、2〜3mmの大きさが10個以上であるときに「不良」と判定。
(5)硬度:鉛筆硬度法で測定(3B、2B、B、HB、F、H、2H、3Hそれぞれの鉛筆で塗膜に損傷を与えない硬度の測定)。その測定の結果は、◎-優秀(HB以上)、○-良好(B)、×-不良(2B以下)に表す。
(6)衝撃性:500gの錘を用いて30cm以上の高さから落下させたとき、塗膜に亀裂及び剥離がないこと。その測定の結果は、50cm以上で塗膜の亀裂がないときに「優秀」、40〜50cmで塗膜の亀裂が発生したときに「良好」、30〜40cmで塗膜の亀裂が発生したときに「普通」、30cm以下で亀裂が発生したときに「不良」と判定。
(7)耐水性:40℃の恒温槽に完成された塗膜を10日間沈積した後、付着試験及び変色の評価。付着性及び変色がないときに「優秀」、付着性は良好であるが変色した後で回復したときに「普通」と評価する。
Claims (11)
- 樹脂の構成単位として、
(1)脂肪族多価アルコールと脂肪族多価酸及び脂環族多価酸とから得られるポリエステル由来単位、
(2)カプロラクトンポリオール由来単位、及び
(3)脂肪族ジイソシアネート由来単位
を含み、30〜200mgKOHの水酸基価及び1〜50mgKOH/gの酸価を有する、ポリエステル変性ウレタン樹脂。 - 脂肪族多価アルコールが、水酸基を2個以上有する炭素数3から12の脂肪族化合物1種以上である、請求項1に記載のポリエステル変性ウレタン樹脂。
- 脂肪族多価アルコールが、プロパンジオール、ブタンジオール、ネオペンチルグリコール、トリメチロールプロパン及びこれらの組み合わせから選択される、請求項1に記載のポリエステル変性ウレタン樹脂。
- 脂肪族または脂環族多価酸が、カルボン酸基を2個以上有する炭素数3から12の脂肪族多価酸1種以上、カルボン酸基を2個以上有する炭素数5から12の脂環族多価酸1種以上、またはこれらの混合物である、請求項1に記載のポリエステル変性ウレタン樹脂。
- 脂肪族または脂環族多価酸が、ヘキサンジカルボン酸、シクロヘキサンジカルボン酸及びこれらの組み合わせから選択される、請求項1に記載のポリエステル変性ウレタン樹脂。
- 脂肪族ジイソシアネートが、2個のイソシアネート基を有する炭素数4から20の脂肪族または脂環族炭化水素化合物1種以上である、請求項1に記載のポリエステル変性ウレタン樹脂。
- 脂肪族ジイソシアネートが、ヘキサメチレンジイソシアネート、イソホロンジイソシアネート、ジシクロヘキシルメタンジイソシアネート及びこれらの組み合わせから選択される、請求項1に記載のポリエステル変性ウレタン樹脂。
- (a)脂肪族多価アルコールと脂肪族多価酸及び脂環族多価酸とを反応させて、ポリエステル中間体を合成する段階;及び
(b)前記合成されたポリエステル中間体、カプロラクトンポリオール及び脂肪族ジイソシアネートを反応させて、ポリエステル変性ウレタン樹脂を合成する段階
を含み、前記ポリエステル変性ウレタン樹脂は、30〜200mgKOHの水酸基価及び1〜50mgKOH/gの酸価を有する、ポリエステル変性ウレタン樹脂の製造方法。 - 組成物の総100重量部を基準として、
請求項1から請求項7のいずれか一項に記載のポリエステル変性ウレタン樹脂5〜30重量部;
シラン変性アクリルポリオール樹脂20〜60重量部;
硬化剤5〜30重量部;硬化触媒0.5〜3重量部;及び
溶剤10〜25重量部
を含むクリアコート組成物。 - シラン変性アクリルポリオール樹脂の重量平均分子量(Mw)が、5,000〜10,000であり、水酸基価が20〜120mgKOH/gであり、ガラス転移温度が10〜80℃である、請求項9に記載のクリアコート組成物。
- 請求項9に記載のクリアコート組成物から形成された一つ以上のコーティング層を含む成形品。
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PCT/KR2015/003764 WO2016104875A1 (ko) | 2014-12-24 | 2015-04-15 | 고탄성 폴리에스터 변성 우레탄 수지 및 이를 포함하는 클리어코트 조성물 |
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US10239986B2 (en) | 2019-03-26 |
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JP2018505936A (ja) | 2018-03-01 |
US20180022858A1 (en) | 2018-01-25 |
EP3239204B1 (en) | 2018-12-19 |
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