JP2010516876A - 防食、木材及びコンクリート用の水性コーティングバインダ - Google Patents
防食、木材及びコンクリート用の水性コーティングバインダ Download PDFInfo
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- JP2010516876A JP2010516876A JP2009547561A JP2009547561A JP2010516876A JP 2010516876 A JP2010516876 A JP 2010516876A JP 2009547561 A JP2009547561 A JP 2009547561A JP 2009547561 A JP2009547561 A JP 2009547561A JP 2010516876 A JP2010516876 A JP 2010516876A
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- 230000007797 corrosion Effects 0.000 title description 9
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- 238000006386 neutralization reaction Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- Life Sciences & Earth Sciences (AREA)
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- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Epoxy Resins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
1分子当たり少なくとも1つのエポキシ基を有するエポキシ樹脂A1と、1分子当たり少なくとも1つの第一級アミノ基又は第二級アミノ基を有する脂肪族アミンA2とを反応させてエポキシアミン付加物A12を形成し、このエポキシアミン付加物A12を酸の添加によって少なくとも部分的に中和させ、中和されたエポキシアミン付加物A12nを攪拌しながら水性相に移行し、この水性混合物を加熱し、且つそこに1分子当たり少なくとも2つのエポキシ基を有するさらなるエポキシ樹脂A3を添加し、A3の量は、A12中の反応性ヒドロキシル基及び反応性アミノ基の数が、A3中のエポキシ基の数と等しいか、又はそれよりも大きくなるように選択される工程と、
1分子当たり少なくとも2つのヒドロキシル基を有する直鎖状、分枝状及び環状脂肪族化合物からなる群より選択されるヒドロキシ官能性成分B1と、少なくとも1つの脂肪族酸B21と少なくとも1つの芳香族酸B22とを含む、カルボン酸基を有する酸官能性成分B2との共縮合により、4mg/g〜50mg/gの酸価を有するカルボキシ官能性ポリエステルBを調製する工程であって、ヒドロキシ官能性成分B1及び酸官能性成分B2の質量の合計中の芳香族酸B22の質量分率が最大15%である工程と、
上記ポリエステルBを鎖延長エポキシアミン付加物Aと混和させる工程と、
AとBとの上記の混合物を水中に分散させる工程とを含む。
エポキシアミン付加物の合成
2.1mol/kgの特定含量のエポキシ基(475g/molの「エポキシ当量」)を有するビスフェノールAをベースとした1900gのエポキシ樹脂を、129gのジメチルアミノプロパノールアミン、及び208gのジエタノールアミンと共にメトキシプロパノール中に溶解し、70%濃度の溶液を形成する。混合物を110℃に加熱し、攪拌しながらエポキシ基が完全に消費されるまで反応させた。
ポリエステルの調製
攪拌器及び還流凝縮器を備えた三つ口容器に、531g(4.5mol)のヘキサンジオール−1,6,67g(0.5mol)のトリメチロールプロパン、438g(3.0mol)のアジピン酸、及び58g(0.3mol)の無水トリメリット酸を充填した。充填物を攪拌しながら窒素ブランケット下で10K/hで200℃に加熱した。縮合反応において形成した水を分離し、酸価が25mg/g未満に下がるまで反応を続けた。23℃においてジメチルホルムアミド溶液中で測定したポリエステル(A1)のシュタウディンガー指数は16.5cm3/gであった。209mg/gの水酸基価を試料について求めた。最後に、さらなるメトキシプロパノールを添加することによりポリエステルA1を80%の固形分質量分率に希釈した。
エポキシアミン付加物とポリエステルとの混合物の調製
実施例1のエポキシアミン付加物溶液を、150℃に加熱し、溶媒を蒸留によって減圧下で除去した。実施例2の147gのポリエステル溶液を添加し、混合物をさらに1時間150℃で攪拌した後、混合物を110℃に冷却させた。固体樹脂100g当たり60mmolの氷酢酸を添加し、中和させた樹脂混合物を完全に脱塩させた水の添加によって40%の固形分(=不揮発性物質)質量分率に希釈した。さらに1時間以内に、130gのビスフェノールAジグリシジルエーテルを90℃のこの水溶液に添加し、得られた混合物を攪拌しながらエポキシ基が完全に消費されるまでこの温度に維持した。さらに、溶液を38%の固形分質量分率に調節するように水を添加した。
プライマー
実施例3の溶液を用いて、カチオン性プライマーを配合した。88gの完全に脱塩させた水と22gの商業用分散剤((登録商標)Additol VXW 6208(Cytec Surface Specialties Austria GmbH))との混合物中に、3gの商業用脱泡剤((登録商標)Surfynol SE−F(E. I. DuPont de Nemours Company))、6gのチキソトロピー剤((登録商標)Luwothix HT(Lehmann & Voss))、及び3gのアクリレート増粘剤((登録商標)Acrysol RM 8/12(Rohm & Haas Company))、62gの酸化鉄顔料((登録商標)Bayferrox(Lanxess AG))、106gの変性リン酸亜鉛顔料(Heucophos ZPO(Heubach GmbH))、55gのカオリン充填剤((登録商標)ASP 600(Engelhardt GmbH))、及び55gのタルク充填剤((登録商標)Talkum AT1(Norwegian Talc AS))を分散させた。480gの実施例3のバインダ溶液を、3%濃度の水溶液として3gのコバルト乾燥剤及びさらに117gの脱塩水と共に添加した。このようにして得たプライマー組成物の流出時間はおよそ30秒であり、これはDIN EN ISO 2431又はDIN 53 211に従い4mmカップ内で測定した。
プライマー5、6及び7
酸化乾燥エポキシ樹脂エステルの水性エマルジョンをベースとした商業用プライマー(プライマー5、((登録商標)Duroxyn VEF 4380(Cytec Surface Specialties Austria GmbH))、及び中粘度油であるロジン変性アルキド樹脂をベースとした従来の溶媒系プライマー(プライマー6、(登録商標)Vialkyd AM 404(Cytec Surface Specialties Austria GmbH))を比較用に用いた。(登録商標)AMP 90は、アミン中和剤(2−アミノ−2−メチル−1−プロパノール(The DOW Chemical Company、以前はAngus Chemicals))である。表2に製剤を記載する。特許文献2の実施例2に記載のさらなるバインダをプライマー7として試験した。
腐食試験結果
4mmカップからの約30秒の流出時間を全て有する表2のプライマー及びプライマー7を、噴霧することによっておよそ30μmの乾燥膜厚で未処理鋼板に塗布した。10日間室温で乾燥させた後、腐食試験をDIN 50 021に従って実施した。得られた結果を表3に挙げる。
ポリエステルの影響
実施例3を繰り返し、エポキシアミン付加物に混和されるポリエステルの種類及び量の影響を以下の表4に示した。
Claims (9)
- 70%〜98%の質量分率の鎖延長エポキシアミン付加物(A)と、最大15%の質量分率で限定量の芳香族成分を含有し且つ4mg/g〜50mg/gの酸価を有する、2%〜30%のカルボキシ官能性ポリエステル(B)とを含むバインダ混合物。
- 前記エポキシアミン付加物(A)が、1分子当たり少なくとも1つのエポキシ基を有するエポキシ樹脂(A1)と、1分子当たり少なくとも1つの第一級アミノ基又は第二級アミノ基を有する脂肪族アミン(A2)とを反応させてエポキシアミン付加物(A12)を形成すること、このエポキシアミン付加物(A12)を酸の添加によって少なくとも部分的に中和させること、中和されたエポキシアミン付加物(A12n)を攪拌しながら水性相に移行すること、この水性混合物を加熱すること、及びそこに1分子当たり少なくとも2つのエポキシ基を有するさらなるエポキシ樹脂(A3)を添加することによって得ることが可能であり、該エポキシ樹脂(A3)の量は、前記エポキシアミン付加物(A12)中の反応性ヒドロキシル基及びアミノ基の数が、前記エポキシ樹脂(A3)中のエポキシ基の数と等しいか、又はそれよりも大きくなるように選択される、請求項1に記載のバインダ混合物。
- 脂肪酸(A4)が、前記エポキシ樹脂(A3)とのさらなる反応前に、前記エポキシ樹脂(A1)及び前記脂肪族アミン(A2)と反応する、請求項2に記載のバインダ混合物。
- 4mg/g〜50mg/gの酸価を有する前記カルボキシ官能性ポリエステル(B)が、1分子当たり少なくとも2つのヒドロキシル基を有する直鎖状、分枝状及び環状脂肪族化合物からなる群より選択されるヒドロキシ官能性成分(B1)と、少なくとも1つの脂肪族酸(B21)と少なくとも1つの芳香族酸(B22)とを含む、カルボン酸基を有する酸官能性成分(B2)との共縮合によって得ることが可能であり、前記ヒドロキシ官能性成分(B1)及び前記酸官能性成分(B2)の質量の合計中の前記芳香族酸(B22)の質量分率が最大15%である、請求項1に記載のバインダ混合物。
- 請求項1に記載のバインダ混合物を製造する方法であって、
1分子当たり少なくとも1つのエポキシ基を有するエポキシ樹脂(A1)と、1分子当たり少なくとも1つの第一級アミノ基又は第二級アミノ基を有する脂肪族アミン(A2)とを反応させてエポキシアミン付加物(A12)を形成し、このエポキシアミン付加物(A12)を酸の添加によって少なくとも部分的に中和させ、中和されたエポキシアミン付加物(A12n)を攪拌しながら水性相に移行し、この水性混合物を加熱し、且つそこに1分子当たり少なくとも2つのエポキシ基を有するさらなるエポキシ樹脂(A3)を添加し、該エポキシ樹脂(A3)の量は、前記エポキシアミン付加物(A12)中の反応性ヒドロキシル基及び反応性アミノ基の数が、前記エポキシ樹脂(A3)中のエポキシ基の数と等しいか、又はそれよりも大きくなるように選択される工程と、
1分子当たり少なくとも2つのヒドロキシル基を有する直鎖状、分枝状及び環状脂肪族化合物からなる群より選択されるヒドロキシ官能性成分(B1)と、少なくとも1つの脂肪族酸(B21)と少なくとも1つの芳香族酸(B22)とを含む、カルボン酸基を有する酸官能性成分(B2)との共縮合により、4mg/g〜50mg/gの酸価を有するカルボキシ官能性ポリエステル(B)を調製する工程であって、前記ヒドロキシ官能性成分(B1)及び前記酸官能性成分(B2)の質量の合計中の前記芳香族酸(B22)の質量分率が最大15%である工程と、
前記ポリエステル(B)を前記鎖延長エポキシアミン付加物(A)に混和させる工程と、
AとBとの前記混合物を水中に分散させる工程と、
を含む、請求項1に記載のバインダ混合物を製造する方法。 - 前記エポキシ樹脂(A3)とのさらなる反応前に、脂肪酸(A4)を前記エポキシ樹脂(A1)及び前記脂肪族アミン(A2)と反応させる、請求項5に記載の方法。
- 第1の工程において、前記脂肪族アミン(A2)及び前記エポキシ樹脂(A3)とのさらなる反応前に、脂肪酸(A4)を前記エポキシ樹脂(A1)と反応させる、請求項6に記載の方法。
- 脂肪酸(A4)を並発反応において前記エポキシ樹脂(A1)及び前記脂肪族アミン(A2)と反応させる、請求項6に記載の方法。
- 請求項1に記載のバインダ混合物の使用方法であって、前記バインダ混合物に、脱泡剤、増粘剤、分散剤、充填剤及び顔料の少なくとも1つを混和させてコーティング組成物を形成すること、及び前記コーティング組成物を、卑金属、木材、厚紙、石膏及びコンクリートからなる群より選択される基体に塗布すること、
を含む、請求項1に記載のバインダ混合物の使用方法。
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EP07001858A EP1950261A1 (en) | 2007-01-29 | 2007-01-29 | Aqueous coating binders for corrosion protection, wood and concrete |
PCT/EP2008/000061 WO2008092544A1 (en) | 2007-01-29 | 2008-01-08 | Aqueous coating binders for corrosion protection, wood and concrete |
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EP2147955A1 (en) | 2008-07-21 | 2010-01-27 | Cytec Surface Specialties Austria GmbH | Aqueous coating binders for corrosion protection, wood and concrete |
EP2871195A1 (en) | 2013-11-07 | 2015-05-13 | ALLNEX AUSTRIA GmbH | Cationic Alkyd Resins |
CN106470810A (zh) | 2014-06-30 | 2017-03-01 | 陶氏环球技术有限责任公司 | 经处理多孔材料 |
JP2018501362A (ja) | 2014-12-23 | 2018-01-18 | ダウ グローバル テクノロジーズ エルエルシー | 処理済み多孔質材料 |
CN104774548B (zh) * | 2015-04-28 | 2017-10-03 | 重庆卡勒斯通科技有限公司 | 一种木材表面防护纳米涂料及其制作工艺 |
WO2021011125A1 (en) * | 2019-07-15 | 2021-01-21 | Dow Global Technologies Llc | Isocyanate-free laminating adhesive |
US11939553B2 (en) | 2020-06-03 | 2024-03-26 | Ecolab Usa Inc. | Non-caustic cleaning compositions and uses thereof |
US11932795B2 (en) | 2020-06-03 | 2024-03-19 | Ecolab Usa Inc. | Aromatic amine epoxide adducts for corrosion inhibition |
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