JP2013541607A - アルミニウム基材に対して使用するためのランタニド系列元素を含む電着被膜 - Google Patents
アルミニウム基材に対して使用するためのランタニド系列元素を含む電着被膜 Download PDFInfo
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- JP2013541607A JP2013541607A JP2013527308A JP2013527308A JP2013541607A JP 2013541607 A JP2013541607 A JP 2013541607A JP 2013527308 A JP2013527308 A JP 2013527308A JP 2013527308 A JP2013527308 A JP 2013527308A JP 2013541607 A JP2013541607 A JP 2013541607A
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- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims abstract description 11
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/30—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen
- C08G59/304—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/04—Electrophoretic coating characterised by the process with organic material
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
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Abstract
Description
本発明は、the United States Air Forceにより授与された契約番号FA8650−05−C−5010の下の政府の援助によりなされた。米国政府は本発明における一定の権利を有し得る。
本出願は、2007年8月15日に出願された米国特許出願第11/839,127号の一部継続出願であり、この米国特許出願は本明細書において参照として援用される。
本発明は、被膜が改良された様相を有する、アルミニウム基材に該被膜を提供するための電着の使用に関する。
アルミニウムは、航空機組立て体において最も顕著に使用される金属である。航空機の構造上の接手は、互いに接着結合している。しかしながら、多くの接着剤は、このアルミニウム基材に対して十分に接着しない。接手領域における接着強度を改良するために、該アルミニウム基材に電着被膜を付与することは公知である。この点における好ましい被膜は、ポリフェノールのポリグリシジルエーテルなどのエポキシ樹脂をリン酸と反応させることによって調製されたリン酸化エポキシ樹脂から得られる。該被膜は、アニオン性電着によって付与され、アルミニウム基材へ、およびその後に付与される接着剤へ非常に十分に接着する。電着被膜に伴う1つの問題は、貧弱な様相を有する粗い被膜を与える被膜におけるピンホールの形成である。また、該ピンホールは、被膜における破損点であり得る。
本発明は、+3および+4の両方の共通の酸化状態(以後、+3/+4酸化状態という)を有する1以上のランタニド系列元素との組み合わせで、1以上のエポキシ樹脂をリン酸と、ならびに有機ホスホン酸および/または有機ホスフィン酸と反応させることによって得られたリン酸化エポキシ樹脂を使用することによって、先の問題を克服する。
先に説明した方法は、種々の基材において使用することができる。本発明とともに使用することのできる好適な基材には、金属基材、金属合金基材、および/またはニッケルめっきしたプラスチックなど金属で被覆した基材が含まれる。一部の実施形態においては、金属または金属合金は、鋼および/またはアルミニウムであることができる。例えば、鋼基材は、冷間圧延鋼、電気亜鉛めっき鋼、および/または溶融亜鉛めっき鋼であり得る。2000系、5000系、6000系、または7000系のアルミニウム合金、およびクラッドアルミニウム合金も基材として使用してもよい。本発明において使用される基材は、チタンおよび/またはチタン合金も含んでもよい。一部の実施形態においては、基材は、車両本体(例えば、非限定的だが、航空機に使用される、扉、本体パネル、トランク甲板ふた、屋根パネル、幌、屋根および/もしくは床根太、リベット、着陸装置部品、ならびに/または外板)および/または車両フレームなど、車両の一部を含んでもよい。本明細書で使用する場合、「車両」またはその変形体には、民間航空機、事業用航空機、および軍用機、ならびに/または自動車、自動二輪車、および/もしくは貨物自動車などの陸上車輛が含まれるが、これらに限定されない。
樹脂I:リン酸化エポキシ樹脂分散系の調製
819.2部のビスフェノールAジグリシジルエーテル(EEW 188)、263.5部のビスフェノールA、および116.4部の2−n−ブトキシ−1−エタノールおよび93.1部の2−エチル−1−ヘキサノールの混合物を115℃まで加熱した。その時点で、0.8部のエチルトリフェニルホスホニウムヨージドを添加した。この混合物を加熱し、少なくとも165℃の温度で1時間保持した。この混合物を88℃まで冷却しておきながら、58.2部のEKTASOLVE EEH溶媒および23.2部の2−エチル−1−ヘキサノールを添加した。88℃で、32.1部の85%o−リン酸、18.9部のフェニルホスホン酸、および6.9部のEKTASOLVE EEHからなるスラリーを添加した。この反応混合物をその後、少なくとも120℃の温度で30分間維持した。その時点で、この混合物を100℃まで冷却し、71.5部の脱イオン水を徐々に添加した。一旦水を添加すると、約100℃の温度を2時間維持した。次に、この反応混合物を90℃まで冷却し、90.0部のジイソプロパノールアミンを添加した後、413.0部のCYMEL 1130および3.0部の脱イオン水を添加した。混合30分後、1700.0部のこの混合物を1422.3部の撹拌した脱イオン水へと逆希釈した(reverse−thinned)。追加的な328.7部の脱イオン水を添加して、均質な分散系を得、これは、110℃で1時間後に38%の固体含有量を証明した。
樹脂II:リン酸化エポキシ樹脂分散系の調製
794.5部のビスフェノールAジグリシジルエーテル(EEW 188)、255.6部のビスフェノールA、112.8部の2−n−ブトキシ−1−エタノール、および90.3部の2−エチル−1−ヘキサノールの混合物を115℃まで加熱した。その時点で、0.8部のエチルトリフェニルホスホニウムヨージドを添加した。この混合物を加熱し、少なくとも165℃の温度で1時間保持した。この混合物を90℃まで冷却しておきながら、109.9部のEKTASOLVE EEH溶媒および22.5部の2−エチル−1−ヘキサノールを添加した。88℃で、18.4部のRhodite 19A(Universal Photonics Incorporatedから入手可能)を添加した後、37.9部の85%o−リン酸を添加した。この反応混合物をその後、少なくとも120℃の温度で30分間維持した。その時点で、この混合物を100℃まで冷却し、69.4部の脱イオン水を徐々に添加した。一旦水を添加すると、約100℃の温度を2時間維持した。次に、この反応混合物を90℃まで冷却し、87.3部のジイソプロパノールアミンを添加した後、400.6部のCYMEL 1130を添加した。混合30分後、1700.0部のこの混合物を1339.9部の撹拌した脱イオン水へと逆希釈した。追加的な320.0部の脱イオン水を添加して、均質な分散系を得、これは、110℃で1時間後に41.9%(これは理論上38%であるべきである)の固体含有量を証明した。
樹脂III:リン酸化エポキシ樹脂分散系の調製
794.7部のビスフェノールAジグリシジルエーテル(EEW 188)、255.6部のビスフェノールA、112.9部の2−n−ブトキシ−1−エタノール、および90.3部の2−エチル−1−ヘキサノールの混合物を115℃まで加熱した。その時点で、0.8部のエチルトリフェニルホスホニウムヨージドを添加した。この混合物を加熱し、少なくとも165℃の温度で1時間保持した。この混合物を90℃まで冷却しておきながら、109.9部のEKTASOLVE EEH溶媒および22.5部の2−エチル−1−ヘキサノールを添加した。88℃で、18.1部の酸化プラセオジム(ESPIから入手可能)を添加した後、37.9部の85%o−リン酸を添加した。この反応混合物をその後、少なくとも120℃の温度で30分間維持した。その時点で、この混合物を100℃まで冷却し、69.4部の脱イオン水を徐々に添加した。一旦水を添加すると、約100℃の温度を2時間維持した。次に、反応混合物を90℃まで冷却し、87.3部のジイソプロパノールアミンを添加した後、400.6部のCYMEL 1130を添加した。混合30分後、1700.0部のこの混合物を1339.9部の撹拌した脱イオン水へと逆希釈した。追加的な320.0部の脱イオン水を添加して、均質な分散系を得、これは、110℃で1時間後に42.6%(これは理論上38%であるべきである)の固体含有量を証明した。
Alosine処理パネル
2024−T3むき出しアルミニウムパネルを、Henkel Corporationから入手可能なアルカリ洗浄剤であるRIDOLINE 298の溶液中での130°Fで2分間の浸漬によって洗浄した。アルカリ洗浄後、このパネルを水道水での大気条件での1分間のすすぎに浸漬した。このパネルを次に、Henkel Corporationから入手可能な酸性脱酸剤であるDEOXIDIZER 6/16の溶液中に大気条件で2分30秒間浸漬した。この酸の脱酸素後、パネルを水道水に大気条件で1分間浸漬した。このパネルを次に、Henkel Corporationから入手可能な化成被膜であるALODINE 1200S中に大気条件で2分30秒間浸漬した。このパネルを次に、脱イオン水中に大気条件で1分間浸漬した後、脱イオン水の最終的なスプレーすすぎをした。このパネルを使用前に空気乾燥させた。
Claims (20)
- アルミニウム基材に被膜を提供するためのプロセスであって、電着浴との電気的接触においてアノードとして作用する該基材とカソードとの間に電流を通過させる工程を含み、
該電着浴は、
(a)塩基により中和したゲル化していないリン酸エポキシ樹脂と
(b)+3および/または+4酸化状態を有するランタニド系列元素と
を含む水性樹脂分散系を含む、プロセス。 - 前記ランタニド系列元素は、セリウム、プラセオジム、またはテルビウムを含む、請求項1に記載のプロセス。
- 前記ランタニド系列元素は、セリウム、プラセオジム、およびテルビウムのうちの少なくとも2つを含む、請求項1に記載のプロセス。
- 前記エポキシ樹脂は、ポリフェノールのポリグリシジルエーテルおよびエポキシ官能性アクリル樹脂から選択される、請求項1に記載のプロセス。
- 前記分散系は、単量体モノエポキシドを追加的に含む、請求項1に記載のプロセス。
- 前記リン酸化エポキシ樹脂は、樹脂固体を基にして15〜50の酸価を有する、請求項1に記載のプロセス。
- 前記リン酸化エポキシ樹脂は、1当量のエポキシに対して0.1〜0.8モルのリン酸を、ならびに1当量のエポキシあたり0.01〜0.4モルのホスホン酸および/または有機ホスフィン酸を含有する、請求項1に記載のプロセス。
- 前記水性分散系は硬化剤をさらに含む、請求項1に記載のプロセス。
- 前記硬化剤はアミノプラストを含む、請求項8に記載のプロセス。
- (a)前記リン酸化エポキシ樹脂は50〜90重量%の量で存在し、そして(b)前記硬化剤は10〜50重量%の量で存在し、該%は(a)および(b)の総固体重量を基にしている、請求項8に記載のプロセス。
- 前記有機ホスホン酸はフェニルホスホン酸である、請求項7に記載のプロセス。
- 前記水性樹脂分散系はアゾールをさらに含む、請求項1に記載のプロセス。
- 前記アゾールは、ベンゾトリアゾール 3−メルカプト−1,2,4−トリアゾール、2−メルカプトベンゾチアゾール、2,5−ジメルカプト−1,3,4−チアジアゾール、1−メチルベンゾトリアゾール、またはこれらの組み合わせを含む、請求項12に記載のプロセス。
- 前記アゾールは、前記水性樹脂分散系中の固体の総重量を基にして、0.001〜1.0重量%の量で前記組成物中に存在する、請求項12に記載のプロセス。
- 前記ランタニド系列元素は、前記水性樹脂分散系中の固体の総重量を基にして、0.015〜3.2重量%の量で前記組成物中に存在する、請求項1に記載のプロセス。
- 基材を被覆する方法であって、
(a)第IIIB族または第IVB族金属化合物を含む化成被膜組成物を前記基材の少なくとも一部に堆積する工程と、
(b)被膜組成物を前記化成被膜の少なくとも一部に電着させる工程
とを含み、該被膜組成物は、
(i)塩基により中和したゲル化していないリン酸化エポキシ樹脂と
(ii)+3および/または+4酸化状態を有するランタニド系列元素と
を含む水性樹脂分散系を含む、方法。 - 前記リン酸化エポキシ樹脂は、1以上のポリマーエポキシ化合物とリン酸とのならびに有機ホスホン酸および/または有機ホスフィン酸との反応生成物の混合物を含む、請求項16に記載の方法。
- 請求項16に従って被覆した基材。
- 前記基材は、アルミニウムである、請求項17に記載の基材。
- 水性樹脂分散系であって、
(a)塩基により中和したゲル化していないリン酸化エポキシ樹脂と
(b)+3および/または+4酸化状態を有するランタニド系列元素と
を含む、水性樹脂分散系。
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PCT/US2011/050167 WO2012033700A1 (en) | 2010-09-07 | 2011-09-01 | Electrodeposition coatings including a lanthanide series element for use over aluminum substrates |
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EP4039851A1 (en) * | 2013-03-16 | 2022-08-10 | PRC-Desoto International, Inc. | Azole compounds as corrosion inhibitors |
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Also Published As
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ES2663835T3 (es) | 2018-04-17 |
CN103180489B (zh) | 2016-03-16 |
US8877029B2 (en) | 2014-11-04 |
JP5837071B2 (ja) | 2015-12-24 |
EP3333286A1 (en) | 2018-06-13 |
MY156820A (en) | 2016-03-31 |
MX352939B (es) | 2017-12-13 |
WO2012033700A1 (en) | 2012-03-15 |
EP2614179A1 (en) | 2013-07-17 |
EP2614179B1 (en) | 2018-02-28 |
KR20130079529A (ko) | 2013-07-10 |
KR20140143851A (ko) | 2014-12-17 |
US20110008625A1 (en) | 2011-01-13 |
CA2810505A1 (en) | 2012-03-15 |
BR112013005513A2 (pt) | 2020-09-01 |
UA108257C2 (uk) | 2015-04-10 |
RU2013115485A (ru) | 2014-10-20 |
SG188429A1 (en) | 2013-04-30 |
RU2539121C2 (ru) | 2015-01-10 |
CN103180489A (zh) | 2013-06-26 |
HK1184509A1 (zh) | 2014-01-24 |
MX2013002624A (es) | 2013-04-24 |
AU2011299355B2 (en) | 2015-01-22 |
AU2011299355A1 (en) | 2013-03-21 |
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