JP5420212B2 - スチール用耐薄チップパウダートップコート - Google Patents
スチール用耐薄チップパウダートップコート Download PDFInfo
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- JP5420212B2 JP5420212B2 JP2008208848A JP2008208848A JP5420212B2 JP 5420212 B2 JP5420212 B2 JP 5420212B2 JP 2008208848 A JP2008208848 A JP 2008208848A JP 2008208848 A JP2008208848 A JP 2008208848A JP 5420212 B2 JP5420212 B2 JP 5420212B2
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- topcoat
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- resin
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- ICGLPKIVTVWCFT-UHFFFAOYSA-N 4-methylbenzenesulfonohydrazide Chemical compound CC1=CC=C(S(=O)(=O)NN)C=C1 ICGLPKIVTVWCFT-UHFFFAOYSA-N 0.000 description 1
- OCKGFTQIICXDQW-ZEQRLZLVSA-N 5-[(1r)-1-hydroxy-2-[4-[(2r)-2-hydroxy-2-(4-methyl-1-oxo-3h-2-benzofuran-5-yl)ethyl]piperazin-1-yl]ethyl]-4-methyl-3h-2-benzofuran-1-one Chemical compound C1=C2C(=O)OCC2=C(C)C([C@@H](O)CN2CCN(CC2)C[C@H](O)C2=CC=C3C(=O)OCC3=C2C)=C1 OCKGFTQIICXDQW-ZEQRLZLVSA-N 0.000 description 1
- 229920005789 ACRONAL® acrylic binder Polymers 0.000 description 1
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- 239000005995 Aluminium silicate Substances 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 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
- 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
- C08G59/182—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 using pre-adducts of epoxy compounds with curing agents
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31511—Of epoxy ether
- Y10T428/31515—As intermediate layer
- Y10T428/31522—Next to metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31511—Of epoxy ether
- Y10T428/31529—Next to metal
Landscapes
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Description
ベースコートおよびトップコートコーティングパウダーのそれぞれを、原料成分をプラスチックバッグ中で約1分間振盪し、次に短時間(60〜90秒)、71.1℃(160°F)に設定されたPrism二軸スクリューTSE24PC押出機でシート状に押し出し、これをベルト上で空冷し、砕いてチップにする方法に従って、下記の表1に記載した成分から形成した。得られたチップを約1分間、プラスチックバッグ中で表示された量の乾燥フローエイドと混合し、次いでBrinkman Retsch ZM1000 Laboratory Grinder中、高速で粉砕して粉末にし、次いで135μm(100メッシュ)スクリーンを用いてスクリーンして、粗粒子を除去した。
得られたエポキシベースコートおよびトップコートコーティング組成物を次いで、Nordson Versa−Spray II静電スプレーガンを用いて、一つずつ、乾燥状態で、下記表2および3に表示された基体上(この基体のそれぞれは4分間160℃で表面温度約104℃に予熱)に静電スプレーし、下記表2および3に表示された厚さのコーティングパウダーを得た。得られた二重コーティングを次に20分間160℃で、強制空気電気オーブン中で硬化させて、パウダーコーティングを形成した。
グラベロメーター法GM9508P、方法Bに従い、−30℃で次のようにして、パウダーコーティングを耐チップ性に関して試験した:
実施例1〜6において、試験を二重に行い、1から9のグラベロメーター評点を下記表2に示す。1から9の評点は、試験パネルを参考パネル1〜9と比較し、最もよく合致する参考パネルを決定することにより決定した。参考パネル1から9はグラベロメーターに暴露された参考パネルの結果を示すGM規格で見出される写真である。1はチップ量が最も多く、最悪と評価されたパネルであり、9は性能規格に適合し、チップが最も少ない。
Claims (14)
- 耐食パウダーコーティングベースコートをその上に有するスチール基体上の耐チップパウダートップコートであって:
前記トップコートが、1以上の強化エポキシ樹脂を含む1以上の樹脂成分、および樹脂100部あたり0.1から5部(phr)の1以上のワックスを含有するコーティングパウダーの硬化または融合生成物を含む、耐チップパウダートップコート。 - 前記コーティングパウダーが、最高75phrまでの1以上の増量剤をさらに含む請求項1記載の耐チップパウダートップコート。
- 前記コーティングパウダーが、脂肪族ポリアミンのエポキシ付加物、脂環式ポリアミンのエポキシ付加物、イミダゾールのエポキシ付加物、およびこれらの混合物から選択される1以上の低温硬化剤をさらに含む、請求項1記載の耐チップパウダートップコート。
- 1以上のワックスにおいて、ASTM D4518−85(1985)による測定により、0.335以下のスリップ試験タンジェント値が得られる、請求項1記載の耐チップパウダートップコート。
- 1以上のワックスが、ポリエチレン(PE)ワックス、微結晶PEワックス、高分子量PEワックス、ポリテトラフルオロエチレン(PTFE)ワックス、水素化ヒマシ油、TiO2とPTFEとの組み合わせ、部分塩素化パラフィン樹脂、PE/PTFE組み合わせ、有機シロキサンを含有するワックス、およびこれらの混合物から選択される、請求項1記載の耐チップパウダートップコート。
- 前記耐食ベースコートが、25から103μmの厚さを有し、前記トップコートが150から400μmの厚さを有する、請求項1記載の耐チップパウダートップコート。
- 前記スチール基体が耐食高張力スチールを含む、請求項1記載の耐チップパウダートップコート。
- 前記ベースコートが1以上の亜鉛含有強化エポキシ樹脂パウダーを含む、請求項7記載の耐チップパウダートップコート。
- 前記ベースコートおよび前記トップコートがそれぞれ同じ融合または硬化した強化エポキシ樹脂パウダーを含む、請求項8記載の耐チップパウダートップコート。
- 耐チップパウダー二重コーティングを製造する方法であって:
スチール基体に、亜鉛含有強化エポキシコーティングパウダーを、所望の厚さのベースコートを形成するために十分な量で施用し、
パウダーコーティングされた基体に請求項1記載のコーティングパウダーを、所望の厚さのトップコートを形成するために十分な量で施用し、
コーティングパウダーを融合または硬化させるために加熱することを含む、方法。 - 前記ワックスが異なる複数のワックスの組み合わせを含む、請求項1記載の耐チップパウダートップコート。
- 前記コーティングパウダーが最高200phrまでの1以上の増量剤をさらに含む、請求項1記載の耐チップパウダートップコート。
- 前記部分塩素化パラフィン樹脂が70%塩素化パラフィン樹脂を含む、請求項5記載の耐チップパウダートップコート。
- 同じ強化エポキシ樹脂を使用して、前記ベースコートと前記トップコートの両方が形成される、請求項10記載の方法。
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2008
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- 2008-09-17 CN CNA2008102131717A patent/CN101423725A/zh active Pending
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JP2013209661A (ja) * | 2007-10-31 | 2013-10-10 | Akzo Nobel Coatings Internatl Bv | スチール用耐薄チップパウダートップコート |
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JP2009120812A (ja) | 2009-06-04 |
US20090110934A1 (en) | 2009-04-30 |
JP2013209661A (ja) | 2013-10-10 |
US8574708B2 (en) | 2013-11-05 |
CN101423725A (zh) | 2009-05-06 |
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