JP6688893B2 - 高耐スクラッチ性の一液型塗料組成物 - Google Patents
高耐スクラッチ性の一液型塗料組成物 Download PDFInfo
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- JP6688893B2 JP6688893B2 JP2018534132A JP2018534132A JP6688893B2 JP 6688893 B2 JP6688893 B2 JP 6688893B2 JP 2018534132 A JP2018534132 A JP 2018534132A JP 2018534132 A JP2018534132 A JP 2018534132A JP 6688893 B2 JP6688893 B2 JP 6688893B2
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- FZYCEURIEDTWNS-UHFFFAOYSA-N prop-1-en-2-ylbenzene Chemical compound CC(=C)C1=CC=CC=C1.CC(=C)C1=CC=CC=C1 FZYCEURIEDTWNS-UHFFFAOYSA-N 0.000 description 1
- YKCNVAVAVLAKMO-UHFFFAOYSA-N prop-2-enoic acid;2,2,4-trimethylpentane-1,3-diol Chemical compound OC(=O)C=C.CC(C)C(O)C(C)(C)CO YKCNVAVAVLAKMO-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000007870 radical polymerization initiator Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- SJMYWORNLPSJQO-UHFFFAOYSA-N tert-butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)(C)C SJMYWORNLPSJQO-UHFFFAOYSA-N 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 208000029257 vision disease Diseases 0.000 description 1
- 230000004393 visual impairment Effects 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
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Description
実施例1‐1〜1‐3および比較例1‐1〜1‐5
1.合成例1:カルバメート基含有アクリルポリオール樹脂(A)の製造
温度計、攪拌装置、コンデンサ、加熱装備を備えた合成用四ツ口フラスコにココゾル#100 215重量部を仕込み、還流温度(165℃)まで昇温した。還流が安定した後、2‐ヒドロキシエチルアクリレート206重量部、スチレンモノマー190重量部、ノルマルブチルアクリレート100重量部、α−メチルスチレンダイマー40重量部を均一混合し、ターシャリーブチルパーオキシベンゾエート15重量部、ココゾル#100 40重量部を別に均一混合し、それぞれ180分、195分間均一に分離滴加した後、60分間還流維持させた。維持終了後、ココゾル#100で希釈し、反応物を80℃に冷却してメチルカルバメート80重量部、ジブチルスズオキシド1.3重量部を投入し、約145℃で流出されるメタノールを別に捕集した。総30重量部程度のメタノールが捕集された後、窒素を注入して残余メチルカルバメートを1時間除去して冷却し、反応を終了した。これにより、固形分 63%、粘度Z2、水酸基が50mgKOHであり、重量平均分子量が5,000であり、ガラス転移温度が10℃であり、カルバメート基当量が固形分重量基準で600であるカルバメート基含有アクリルポリオール樹脂を得た。
温度計、攪拌装置を備えた合成用四ツ口フラスコにココゾル#100 215重量部を仕込み、還流温度(165℃)まで昇温した。還流が安定した後、ヒドロキシプロピルアクリレート203重量部、スチレンモノマー152重量部、ノルマルブチルメタクリレート132重量部、ノルマルブチルアクリレート127重量部と、ターシャリーブチルパーオキシベンゾエート10重量部、ココゾル#100 52重量部を180分、195分間均一に分離滴加した後、60分間還流維持させた。ココゾル#100で希釈し、反応物を60℃に冷却して固形分70%のアクリルポリオール樹脂を得た。
温度計、攪拌装置、コンデンサ、充填カラム(Packed Column)、加熱装備を備えた合成用四ツ口フラスコにトリメチロールプロパン90重量部、ネオペンチルグリコール250重量部、ヘキサヒドロフタル酸無水物380重量部、ジブチルスズオキシド0.5重量部を投入し、徐々に昇温した。投入物が溶解した後、攪拌を行って縮合水を除去しながら230℃まで徐々に昇温した。230℃で酸価が10になるまで反応を維持し、酸価が10以下になると80℃まで冷却し、メチルカルバメート90重量部を投入して145℃まで徐々に昇温した。縮合反応によって生じたメタノールを除去し、水酸基価が60以下になった時に60℃に冷却した。60℃でココゾル#100 80重量部、エトキシエチルプロピオネート70重量部、ヘキサメチレンジイソシアネート三量体(Desmudur N‐3300)55重量部を投入し、60℃でNCO%が0.05%以下になるまで等温維持させた。維持終了後、ココゾル#100で希釈し、反応を終了した。これにより、固形分70%、カルバメート基当量が固形分重量基準で700であり、重量平均分子量が12,000であり、粘度Z3、水酸基が55である物性を有するハイパーブランチ構造のカルバメート基含有ポリエステルポリオール樹脂を得た。
温度計、攪拌装置、コンデンサ、充填カラム、加熱装備を備えた合成用四ツ口フラスコにトリメチロールプロパン90重量部、ネオペンチルグリコール250重量部、ヘキサヒドロフタル酸無水物380重量部、ジブチルスズオキシド0.5重量部を投入し、165℃まで徐々に昇温した。投入物が溶解した後、攪拌を行って縮合水を除去しながら230℃まで徐々に昇温した。230℃で酸価が10になるまで維持反応を行ってから、酸価が10以下になった後、80℃まで冷却し、ココゾル#100で希釈しながら反応を終了した。これにより、固形分70%、粘度Y、水酸基が157である物性を有する樹脂を得た。
実施例1‐1〜1‐3および比較例1‐1〜1‐5の塗料組成物をそれぞれ表1に示した組成で製造し、1500rpmで20分以上攪拌混合して塗料組成物を製造し、以下の条件で塗装した後、測定した物性を表2に示した。
(1) Handgun spray
(2) ノズル口径:1.5mm、空気圧:約4.5kgf/cm2に一定維持
(3) ノズル入口と試験片の距離を2〜30cmの範囲で一定に維持し、水平に40〜50cm/secの速度で等速で動かしながら塗装する。
(4) 塗装後、130℃×20min焼付硬化の後、塗膜物性(硬度、付着性、耐水性、耐酸性、耐アルカリ性、耐溶剤性など)を測定
(1)硬度
‐測定方法: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を測定)
(3B、2B、B、HB、F、H、2H、3H:劣る <---> 優れる)
‐測定方法:上塗り塗装まで完成された塗装試験片を熱処理CYCLEで処理した後、常温で24時間放置してから0.2mm間隔の碁盤目法で付着力を測定する。
‐熱処理CYCLE:150℃×20分、20分間常温放置の過程を3回繰り返す
(M‐1、M‐2、M‐3、M‐4、M‐5:優れる <---> 劣る)
‐測定方法:試験片を40℃の恒温水槽に240時間浸漬してから1時間常温で放置した後、0.2mm間隔の碁盤目付着性評価でテープ剥離試験を行い、外観の異常有無を目視で観察する。
(M‐1、M‐2、M‐3、M‐4、M‐5:優れる <---> 劣る)
‐測定方法:試験片に0.1N硫酸を0.2mLずつ滴下した後、Gradient Ovenの温度を35〜40℃にセットし、150分間加熱する。
‐測定方法:Amtec Kistler装備を用いて10回往復実施。
‐判定方法:試験片の初期20度光沢を測定し、10回往復実施後、20度光沢を測定する。測定実施前の光沢を測定後の光沢で除し、光沢維持率を計算する。
‐測定方法:試験片に試験用溶剤(キシレン)をつけた綿布をのせておいた後、1分ごとに爪で2Kgの力で4回掻き、下層塗膜面が現れた時間を記録する。
前記と同様に合成例1および2と比較合成例1の樹脂を製造し、以下のように水酸基含有長鎖アクリルポリオール樹脂(D)を製造した。
温度計、攪拌装置を備えた合成用四ツ口フラスコにブチルアセテート66重量部を仕込み、還流温度(約130℃)まで昇温する。還流が安定した後、Miramer M100(カプロラクトンアクリレート、Miwon社製)141重量部、メチルメタクリレート39重量部、メタアクリル酸2重量部を均一混合し、ベンゾイルパーオキシド7重量部、ブチルアセテート7重量部を均一混合した後、300分間均一に分離滴加した後、60分間還流維持させた。ブチルアセテートで希釈し、反応物を60℃に冷却し、固形分63%、水酸基価が固形分重量基準で130mgKOH、重量平均分子量が22,000であり、ガラス転移温度が−30℃である水酸基含有長鎖アクリルポリオール樹脂を得た。
実施例2‐1、2‐2および比較例2‐1〜2‐7をそれぞれ表3に示した組成で製造し、1500rpmで20分以上攪拌混合して塗料組成物を製造し、以下の条件で塗装した後、測定した物性を表4に示した。
‐測定方法:耐スクラッチ性試験試験片を40℃で1時間放置した後、光沢を再度測定して、耐スクラッチ性評価光沢上昇分を測定前の光沢で除し、光沢復元率で表現する。
Claims (9)
- 樹脂と、硬化剤と、硬化触媒と、有機溶剤とを含む高耐スクラッチ性の一液型塗料組成物であって、
前記樹脂は、塗料組成物100重量%を基準にして、
カルバメート基含有アクリルポリオール樹脂30〜60重量%と、
ハイパーブランチ構造のカルバメート基含有ポリエステルポリオール樹脂10〜25重量%と、
水酸基含有長鎖アクリルポリオール樹脂5〜25重量%と
を含み、
前記カルバメート基含有アクリルポリオール樹脂は、固形分含有量が50〜80重量%であり、
前記ハイパーブランチ構造のカルバメート基含有ポリエステルポリオール樹脂は、固形分含有量が50〜80重量%であり、
前記水酸基含有長鎖アクリルポリオール樹脂は、固形分含有量が50〜80重量%であり、
前記水酸基含有長鎖アクリルポリオール樹脂は、以下の構造を有する水酸基を含有する長鎖アクリルモノマー:
に由来する繰り返し単位を含む、高耐スクラッチ性の一液型塗料組成物。 - カルバメート基含有アクリルポリオール樹脂は、カルバメート基当量が固形分重量基準で400〜700である、請求項1に記載の高耐スクラッチ性の一液型塗料組成物。
- ハイパーブランチ構造のカルバメート基含有ポリエステルポリオール樹脂は、カルバメート基当量が固形分重量基準で500〜800である、請求項1に記載の高耐スクラッチ性の一液型塗料組成物。
- 固形分含有量が50〜70重量%であり、粘度がフォードカップ#4を基準に20〜40秒である、請求項1に記載の高耐スクラッチ性の一液型塗料組成物。
- カルバメート基含有アクリルポリオール樹脂は、重量平均分子量が3,000〜10,000であり、ガラス転移温度が−30〜30℃であり、水酸基価が固形分重量基準で30〜70mgKOHである、請求項1に記載の高耐スクラッチ性の一液型塗料組成物。
- ハイパーブランチ構造のカルバメート基含有ポリエステルポリオール樹脂は、重量平均分子量が5,000〜20,000であり、水酸基価が固形分重量基準で30〜70mgKOHである、請求項1に記載の高耐スクラッチ性の一液型塗料組成物。
- 前記水酸基含有長鎖アクリルポリオール樹脂は、水酸基価が固形分重量基準で80〜170mgKOHである、請求項1に記載の高耐スクラッチ性の一液型塗料組成物。
- 前記水酸基含有長鎖アクリルポリオール樹脂は、重量平均分子量が10,000〜30,000であり、ガラス転移温度が−50〜0℃である、請求項1に記載の高耐スクラッチ性の一液型塗料組成物。
- 前記水酸基含有長鎖アクリルポリオール樹脂は、酸基を含有するアクリルモノマーまたは酸基を含有するメタクリルモノマー、および非官能性アクリルモノマーをさらに含むモノマーを使用して重合された構造を有する、請求項1に記載の高耐スクラッチ性の一液型塗料組成物。
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US4424252A (en) | 1982-11-12 | 1984-01-03 | Loctite Corporation | Conformal coating systems |
US5356669A (en) | 1992-10-23 | 1994-10-18 | Basf Corporation | Composite color-plus-clear coating utilizing carbamate-functional polymer composition in the clearcoat |
US6165618A (en) | 1994-11-03 | 2000-12-26 | Basf Corporation | Curable coating compositions containing carbamate resin and additives |
US5552497A (en) | 1994-12-29 | 1996-09-03 | Basf Corporation | Method of preparing carbamate-functional polymer |
US5593733A (en) * | 1995-11-21 | 1997-01-14 | Ppg Industries, Inc. | Coating composition containing polyester polymers with terminal carbamate groups and polymeric polyol derived from ethylenically unsaturated monomers |
US6117931A (en) | 1996-07-01 | 2000-09-12 | Basf Corporation | Curable coating compositions having improved effect pigment orientation and a method of using the same |
US6228953B1 (en) | 1999-08-20 | 2001-05-08 | Ppg Industries,Ohio, Inc. | Process for the preparation of carbamate functional polymers |
US6569956B1 (en) * | 1999-12-22 | 2003-05-27 | Basf Corporation | Hyperbranched polyol macromolecule, method of making same, and coating composition including same |
DE10041636A1 (de) * | 2000-08-24 | 2002-03-28 | Basf Coatings Ag | Thermisch härtbares Stoffgemisch und seine Verwendung |
US6462144B1 (en) | 2000-12-22 | 2002-10-08 | Basf Corporation | Carbamate-functional resins and their use in high solids coating compositions |
US6861150B2 (en) | 2001-02-26 | 2005-03-01 | Basf Corporation | Rheology control agent, a method of preparing the agent, and a coating composition utilizing the agent |
US20080124532A1 (en) | 2006-11-29 | 2008-05-29 | Basf Corporation | Materials and oligomers in low voc coatings |
US7872078B2 (en) | 2007-08-28 | 2011-01-18 | Ppg Industries Ohio, Inc. | Curable film-forming compositions demonstrating self-healing properties |
JP5751656B2 (ja) * | 2007-10-29 | 2015-07-22 | 関西ペイント株式会社 | 水性ウレタン樹脂組成物 |
DE102009058297A1 (de) | 2009-12-01 | 2011-06-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | N-Allylcarbamat-Verbindungen und deren Verwendung, insbesondere in strahlungshärtenden Beschichtungen |
KR101378336B1 (ko) | 2011-12-30 | 2014-03-28 | 주식회사 케이씨씨 | 내화학성, 내스크래치성 및 스크래치 복원성이 우수한 1액형 자동차 상도용 투명 도료 조성물 |
KR101488316B1 (ko) | 2013-07-05 | 2015-02-02 | 현대자동차주식회사 | 스크래치 자가복원 도료 조성물 |
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EP3399002A4 (en) | 2018-11-07 |
EP3399002A1 (en) | 2018-11-07 |
JP2019505632A (ja) | 2019-02-28 |
EP3399002B1 (en) | 2020-08-26 |
US10683436B2 (en) | 2020-06-16 |
WO2017116118A1 (ko) | 2017-07-06 |
US20190016921A1 (en) | 2019-01-17 |
CN108473817A (zh) | 2018-08-31 |
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