JP2020533480A - 金属基板への密着性を改善するためのコポリマー配合物を含む塗料組成物 - Google Patents
金属基板への密着性を改善するためのコポリマー配合物を含む塗料組成物 Download PDFInfo
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Abstract
Description
本出願は、2017年9月11日に出願された米国特許仮出願第62/556,604号に対する優先権の利益を主張し、更に2018年9月10日に出願された米国特許出願第16/126,357号に対する優先権の利益を主張するものであり、これらの内容は、参照によりそれらの全体が本明細書に組み込まれる。
本開示は、このような塗料組成物の金属基板への密着性を改善するために様々な塗料組成物に添加され得るコポリマー配合物と、関連する方法とに関する。
金属基板は、一般に、主として金属元素から又は金属元素のみから構成される基板とみなされ得る。本開示の実施形態は、様々な金属基板で使用するのに好適であり、その例としては以下のものなどを挙げることができる。
本開示の実施形態は、以下に記載するものなど、様々な塗料組成物を上述した金属基板に塗布することを意図する。
本開示の実施形態に従って、上述した金属基板への塗料組成物の密着性を改善するために、上述した任意の塗料組成物に様々なコポリマー配合物を添加してもよい。コポリマー配合物は、好ましくはエマルション、特に水中油型エマルションとして提供される。したがって、任意のコポリマーの説明は、その乳化形態での使用を含むと理解されたい。様々なコポリマー配合物は、とりわけ、以下を含む。
本開示に従って、上述したコポリマー配合物は、金属基板に塗布され得る上述した塗料組成物に添加される。塗料組成物に添加されるコポリマー配合物の量は、コポリマーを除く塗料組成物の総重量に対する添加されるコポリマー固形分の重量に基づいてもよい。いくつかの実施形態では、コポリマー配合物は、この基準で約1%〜約30%、又は約2%〜約25%、又は約2%〜約15%で添加され得る。特定の実施例では、この量は、この基準で約2%、約5%、約10%、若しくは約15%のいずれか、又は前記の任意の2点間のいずれかの範囲であってもよい。
本開示の実施形態に従って、上述した塗料組成物とコポリマー配合物との混合物は、上述した金属基板に塗布され得る。この塗布プロセスは、例えば、ドローダウンバー、ブラシ、ローラー、又は噴霧器などの、任意の従来の湿式膜塗布技術を用いて行われてもよい。
以下の試験プロトコルを使用して、本開示に記載の全ての実施例を調製した:塗料組成物及びコポリマー配合物を、Speed Mixer、DAC 150 FVZ−Kを使用して、2分間隔で3サイクル、合計6分間混合した。塗料組成物に添加されるコポリマー配合物の量は、コポリマーを除く塗料組成物の総重量に対する添加されるコポリマー固形分の重量に基づいて、実施例によって異なるが、2%、5%、10%、又は15%のいずれかであった。4つの異なるコポリマーを試験した:A−C(登録商標)597アニオン性エマルション(プロピレン無水マレイン酸コポリマー)、A−C(登録商標)5150エマルション(エチレンアクリル酸コポリマー)、A−C(登録商標)645エマルション(低密度酸化エチレン酢酸ビニルコポリマー)、Cohesa(登録商標)3050エマルション(エチレンアクリル酸コポリマー)。
様々なコポリマー配合物が混合された半光沢塗料を、試験プロトコルに従って亜鉛めっき鋼基板に塗布した。「対照」実施例(図1A)は、48%の塗料除去を示した。2%、5%、及び10%のCohesa(登録商標)3050を有する塗料は、それぞれ4%、4%、及び8%の塗料除去を示した(図1B、図1C、及び図1D)。2%及び5%のA−C(登録商標)5150を有する塗料は、それぞれ12%及び8%の塗料除去を示した(図1E及び図1F)。2%、5%、10%、及び15%のアニオン性A−C(登録商標)597Pを有する塗料は、それぞれ12%、4%、4%、及び4%の塗料除去を示した(図1G、図1H、図1I、及び図1J)。
様々なコポリマー配合物が混合された半光沢塗料を、試験プロトコルに従って亜鉛めっき鋼基板に塗布した。「対照」実施例(図2A)は、100%の塗料除去を示した。10%及び15%のA−C(登録商標)5150を有する塗料は、それぞれ16%及び4%の塗料除去を示した(図2B及び図2C)。5%、10%、及び15%のアニオン性A−C(登録商標)597Pを有する塗料は、それぞれ25%、4%、及び4%の塗料除去を示した(図2D、図2E、及び図2F)。
様々なコポリマー配合物が混合された艶消し塗料を、試験プロトコルに従って亜鉛めっき鋼基板に塗布した。「対照」実施例(図3A)は、96%の塗料除去を示した。2%、5%、10%、及び15%のA−C(登録商標)5150を有する塗料は、それぞれ20%、32%、12%、及び4%の塗料除去を示した(図3B、図3C、図3D、図3E)。2%、5%、及び15%のアニオン性A−C(登録商標)597Pを有する塗料は、それぞれ60%、24%、及び4%の塗料除去を示した(図3F、図3G、及び図3H)。
様々なコポリマー配合物が混合された艶消し塗料を、試験プロトコルに従って亜鉛めっき鋼基板に塗布した。「対照」実施例(図4A)は、100%の塗料除去を示した。10%及び15%のA−C(登録商標)5150を有する塗料は、それぞれ8%及び4%の塗料除去を示した(図4B及び図4C)。5%、10%、及び15%のアニオン性A−C(登録商標)597Pを有する塗料は、それぞれ28%、8%、及び4%の塗料除去を示した(図4D、図4E、及び図4F)。
Claims (20)
- 金属基板に塗布するための塗料組成物であって、前記塗料組成物が、前記塗料組成物の前記金属基板への密着性を改善するためのコポリマーエマルション配合物の量を含む、塗料組成物。
- 前記塗料組成物が、半光沢仕上げ塗料又は艶消し仕上げ塗料から選択される、請求項1に記載の塗料組成物。
- 前記金属基板が、アルミニウム又は亜鉛めっき鋼から選択される、請求項1に記載の塗料組成物。
- 前記コポリマーエマルション配合物が、乳化形態のエチレン/アクリル酸コポリマーを含む、請求項1に記載の塗料組成物。
- 前記コポリマーエマルション配合物が、乳化形態の高密度酸化ポリエチレンコポリマーを含む、請求項1に記載の塗料組成物。
- 前記コポリマーエマルション配合物が、乳化形態のプロピレン無水マレイン酸コポリマーを含む、請求項1に記載の塗料組成物。
- 前記コポリマーエマルション配合物が、乳化形態の低密度酸化エチレン酢酸ビニルコポリマーを含む、請求項1に記載の塗料組成物。
- 前記コポリマーエマルション配合物の量が、前記コポリマーエマルション配合物を除く前記塗料組成物の総重量に対する、前記コポリマーエマルション配合物の乾燥ポリマー固形分重量に基づいて、約1%〜約30%である、請求項1に記載の塗料組成物。
- 前記コポリマーエマルション配合物の量が、前記コポリマーエマルション配合物を除く前記塗料組成物の総重量に対する、前記コポリマーエマルション配合物の乾燥ポリマー固形分重量に基づいて、約2%〜約15%である、請求項1に記載の塗料組成物。
- 塗料組成物の金属基板への密着性を改善するための方法であって、
前記塗料組成物にコポリマーエマルション配合物の量を添加する工程と、
前記コポリマーエマルション配合物が添加された前記塗料組成物を前記金属基板に塗布する工程と、を含む、方法。 - 前記塗料組成物が、半光沢仕上げ塗料又は艶消し仕上げ塗料から選択される、請求項10に記載の方法。
- 前記金属基板が、アルミニウム、鋼、又は亜鉛めっき鋼から選択される、請求項10に記載の方法。
- 前記コポリマーエマルション配合物が、乳化形態のエチレン/アクリル酸コポリマーを含む、請求項10に記載の方法。
- 前記コポリマーエマルション配合物が、乳化形態の高密度酸化ポリエチレンコポリマーを含む、請求項10に記載の方法。
- 前記コポリマーエマルション配合物が、乳化形態のプロピレン無水マレイン酸コポリマーを含む、請求項10に記載の方法。
- 前記コポリマーエマルション配合物が、乳化形態の低密度酸化エチレン酢酸ビニルコポリマーを含む、請求項10に記載の方法。
- 前記コポリマーエマルション配合物の量が、前記コポリマーエマルション配合物を除く前記塗料組成物の総重量に対する、前記コポリマーエマルション配合物の乾燥ポリマー固形分重量に基づいて、約1%〜約30%である、請求項10に記載の方法。
- 前記コポリマーエマルション配合物の量が、前記コポリマーエマルション配合物を除く前記塗料組成物の総重量に対する、前記コポリマーエマルション配合物の乾燥ポリマー固形分重量に基づいて、約2%〜約15%である、請求項10に記載の方法。
- 塗料組成物が塗布された金属基板であって、前記塗料組成物が、前記塗料組成物の前記金属基板への密着性を改善するためのコポリマーエマルション配合物の量を含む、金属基板。
- 前記コポリマーエマルション配合物の量が、前記コポリマーエマルション配合物を除く前記塗料組成物の総重量に対する、前記コポリマーエマルション配合物の乾燥ポリマー固形分重量に基づいて、約1%〜約30%である、請求項19に記載の金属基板。
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US16/126,375 US20190077969A1 (en) | 2017-09-11 | 2018-09-10 | Paint compositions including copolymer formulations for improving adhesion to metallic substrates |
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