TW518278B - Polymer coated aluminum alloy sheet, and processes for making polymer coated aluminum alloy sheet suitable for shaping into a food or beverage container body or container end panel - Google Patents

Polymer coated aluminum alloy sheet, and processes for making polymer coated aluminum alloy sheet suitable for shaping into a food or beverage container body or container end panel Download PDF

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TW518278B
TW518278B TW089101734A TW89101734A TW518278B TW 518278 B TW518278 B TW 518278B TW 089101734 A TW089101734 A TW 089101734A TW 89101734 A TW89101734 A TW 89101734A TW 518278 B TW518278 B TW 518278B
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copolymer
aluminum alloy
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aluminum
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TW089101734A
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Gary A Nitowski
Joseph D Guthrie
Joseph P Harenski
Daniel C Johnson
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Alcoa Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50Multilayers
    • B05D7/52Two layers
    • B05D7/54No clear coat specified
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B05D7/16Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D139/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Coating compositions based on derivatives of such polymers
    • C09D139/04Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
    • C09D139/06Homopolymers or copolymers of N-vinyl-pyrrolidones
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D143/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
    • C09D143/02Homopolymers or copolymers of monomers containing phosphorus
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002Priming paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00Metallic substrate
    • B05D2202/20Metallic substrate based on light metals
    • B05D2202/25Metallic substrate based on light metals based on Al
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Wrappers (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Description

518278 A7 _ _ B7 五、發明說明(1) 本發明係關於一種新穎之食品容器本體 t to 4關於一種新顏 (請先閱讀背面之注意事項再填寫本頁) 食品或容器端板,並且本發明關於一種由鋁合金板形成本 體或端板的方法。更特別地,本發明係關於塗佈聚=物的 銘合金板,其係具有-層含氧化或氫氧化層以及乙;基騰 故-丙晞酸共聚物之反應產物的底漆層。 即使鋁合金係藉由形成天然氧化塗層而達到自我防蝕, 但是此防蝕作用並不完全。在水分與電解質存在下,鋁合 金較純鋁更迅速腐蝕。 Θ .因此,以底漆或其他提供改良^抗腐蝕性與對聚合物有強 束縛親和性的其他化學藥劑處理鋁合金基質是必要的。 在先七技藝中,在鋁合金上之化學轉化塗層係藉由“轉 化,,金屬表面爲緊密附著的塗層而形成,其中部分塗層係 由氧化形式之鋁所組成。化學轉化塗層提供高抗腐蝕性以 及改良的聚合物塗層之束縛親和性。鉻酸鹽轉化塗層一般 係藉由使銘與一種含六價或三價鉻離子、磷酸根離子及氟 離子I水溶液接觸而製得。近年來,咸提高關心於以此方 法將鉻酸鹽及磷酸鹽排放至排水溝之污染效果。由於高溶 解度及六價鉻之強氧化性,必須使用昂貴的廢棄物處理程 序以還原六價鉻離子爲用於廢棄物處理之三價鉻離子。 經濟部智慧財產局員工消費合作社印製 在先别技藝中已試圖製造可接受的鋁用不含絡酸鹽轉化 塗層。例如有些不含絡酸鹽之轉化塗層含有結、鈥、铪及 /或碎’有時則結合氣、界面活性劑以及聚合物(例如聚丙 晞酸)。即使先前已盡了很大的努力,但依然沒有完全令 人滿意的非鉻酸鹽塗層或改良附著性以及塗鋁合金基質抗 -4 - 本纸張又度適用中國國家標準(CNS)A4規格(210 x 297公釐) 518278 A7 - --—-_ B7 經濟部智慧財產局員工消費合作社印製 五、發明說明(2) 腐蝕性之底漆。 本發明之主要目的係提供塗佈聚合物之鋁合金板,其中 鋁合金板具有一層含乙烯基膦酸-丙烯酸共聚物之底漆 層,並且板上具有鋁之氧化物或氫氧化物層。 本發明的目的係提供一種不含鉻化合物之鋁合金板底漆 層。 本發明心另外目的及優點由以下詳細説明對習知本技 者將更爲明顯。 圖1係爲本發明方法之流程圖^ 根據本發明,此處係提供一種方法製造適合成型爲食 客器本體或是食品或飲料容器端板之塗聚合物鋁合金板 某些適合製造塗聚合物容器本體或容器端板之材料係U 含AA 5000鋁鎂合金系列,以及特別是AA5〇42及AA5182 合金。 適合作爲容器端板之鋁合金例如AA 5 1 82係以本技藝已 次之%注技4製成鍵塊或棒狀或厚板。加工前錠塊或棒狀 物受到南溫均質化作用。隨後將鋁原料熱軋以得到中間 度之薄板。例如該材料可在700。_ 975下之金屬輸入溫度 藉由熱軋而得到厚度爲約0 13〇英吋至〇 19〇英吋之中間 物。孩材料則經冷軋而提供一種厚度範圍爲約0.⑻8王 0.015英吋之薄板。本發明以在H19或H39回火之幻82 鋁合金薄板較佳。作爲端板之鋁合金5〇42薄板較佳係 H19下回火。 ’、 鋁合金例如AA 5042則製成均質化的錠塊。接著熱 -5- 參紙張尺度適用中國國家標準(CNS)A4規格(21〇>< 297公爱 藝 品 包 厚 下 產 至 在 軋爲 —Γ- —V--------------訂---------— I—' (請先閱讀背面之注咅?事項再填寫本頁) 518278 A7 B7 五、發明說明(3) 約0.125英吋之中間厚度。一般來説,該中間厚度產物經 回火,接著熱軋以及冷軋爲厚度爲0·008至0 015英忖之最 終產物厚度。將薄板塗佈聚合物,並接著拉爲食品容器本 體。H2E72回火下之AA 5042鋁合金爲較佳。 塗佈在鋁合金板表面上的天然氧化物通常適合實踐本發 月 天然氧化物塗層通常具有約30-50埃之厚度。爲了得 到較好的防蝕效果,氧化物塗層係以例如陽極氧化處理或 水中氫熱處理而生成。 本發明之鋁合金板通常係以驗^性表面淨化劑清洗以除去 附著在表面的任一殘餘潤滑劑,並且隨後浸潰在水中。倘 若殘餘潤滑劑含量可忽略,則可避免清洗。 經清洗後的平板表面隨後塗上以一種含約2 〇公克/升 乙烯基膦酸-丙烯酸共聚物(VPA-AA共聚物)水溶液之底漆 組合物。以含約10公克/升之共聚物較佳。共聚物通常 含約5-50莫耳%之乙烯基膦酸,且較佳爲2〇_4〇莫耳%。最 佳的VPA-AA共聚物含約3〇莫耳❶/。之vpa以及約7 0莫耳% 之AA。該溶液具有約1〇〇。- 2〇〇下之溫度,更加爲約 120 - 180 F。最佳的溶液具有約17〇下之溫度。 平板表面可浸潰於底漆組合物中,或組合物可捲軋塗佈 或噴務至平板表面上。較佳的連續清潔以及預處理管線係 在每刀鉍约1〇〇(Μ5〇〇英尺下操作。當管線在每分鐘1〇〇〇 英尺下操作時,介於薄板表面以及底漆組合物之間約6秒 鐘的接觸時間是足夠的。VPA-AA共聚物與氧化物或氫氧 化物底層反應,以形成薄板表面上的底漆層。 -6 - 本紙張尺度適用中國國家標準(CNS)Tri^rx 297公釐)- (請先閱讀背面之注意事項再填寫本頁) _裝--------訂---------. 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 518278 A7 ---------B7____ 五、發明說明(5 ) 將樣品由試驗環境移走,以去離子水沖洗,並乾燥之。 倘右以肉眼發現明顯的紅色,則記錄之。塗層附著性則以 刀片紅"過塗層至基板金屬刻出交叉孔口結構(約1 / 8英忖 至3 / 1 6英吋之分開的平行與垂直線)而進行塗層附著性試 驗。在交叉孔口面上則以高黏性膠帶(3M No.6 10)密封。 經5秒鐘接觸時間後,以與金屬表面呈約9 〇。角迅速地除 去膠帶。以P(VPA-AA)底漆之膠帶試驗,並且以聚乙烯料 酸(PVPA)與聚丙烯酸(paA)底漆之類似的膠帶試驗之…果 則如以下所示。 表1 -膠帶試驗結果 —,—^----------------------- (請先閱讀背面之注意事項再填寫本頁) -8-
本紙張尺度適用中國國家標準(CNTS)A4規格(210 X 297公釐) 試驗環處 前處理 PVPA-4.1 g/L 180〇F 浴 失敗 失敗 PVPA-7.4 g/L 180〇F 浴 失敗 失敗 PAA-1.0 g/L 140T 浴 失敗 失敗 PAA-7.7 g/L 140〇F 浴 失敗 失敗 P(VPA-AA)-4.4 g/L 180〇F 浴 合格 合格 P(VPAAA)-7.2 g/L 180〇F 浴 合格 合格 518278 A7 B7 6 五、發明說明( 以上既以描述最佳的具體實施例,咸瞭解本發明另外.可 在申請專利範圍中進一步闡述。 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 9 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐)

Claims (1)

  1. •.種製造適合用成型為食品或飲料容器本體或容器端 板足塗佈聚合物之鋁合金板的方法,且該方法包含: (a)提供一種具有含有氧化鋁或氫氧化鋁之表面部分 之鋁合金板; 、(b)以一種包含水及乙埽基膦酸-丙晞酸共聚物之水 洛液的底漆組合物塗佈表面部分,因此形成一種含上 述共聚物及上述氧化物或氫氧化物的反應物產物之底 漆層;以及 一 (c )以種含選自包含聚氯乙晞、環氧化物及聚酯類 所組成之聚合物的塗層組合物塗佈底烯層。 2.如申請專利範圍第丨項之方法,其係進一步包含: (d)使上述板成型為一種容器本體或容器端板。 3·如申請專利範圍第丨項之方法,其係進一步包含: (d )在(b )之後以及(c )之前,沖洗板以去除部分未 與氧化物或氫氧化物反應之共聚物。 4·如申請專利範圍第1項之方法,其中共聚物包含弘”莫 耳%之乙缔基騰酸。 5. 如申請專利範圍第^員之方法,其中共聚物包含2〇_4〇 莫耳%之乙烯基膦酸。 6. 如申請專利範圍第丨項之方法,其中底漆組合物包含卜 20公克/升之溶於水的共聚物。 7. 如申請專利範圍第!項之方法,其中在步驟(b)底漆組 合物具有120。-20CTF (49。-93°C)之溫度。 8·如申請專利範圍第1項之方法,其中塗層組合物進一步 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) ------- 518278 as B8 C8 __ D8 六、申請專利範圍 包含選自包含二氧化鈦、矽土及鋁礬土之顏料顆粒。 9.如申請專利範圍第1項之方法,其中鋁合金板包含一種 AA 5000系列之鋁·鎂合金。 1〇·如申請專利範圍第1項之方法,其中塗層組合物包含聚 乳乙婦。 Π•一種塗佈聚合物的銘合金,其包含一種AA 5000系列之 銘鎮&金’其係塗佈一種乙埽基膦酸-丙埽酸共聚物 (含2〇_40莫耳%乙晞基膦酸以及60-80莫耳%之丙晞酸) 足底漆組合物以及一種含聚氯乙烯之塗層組合物。 12· —種經塗佈聚合物之鋁合金板,其係包含: Ο) 種鋁合金板,莫係包含一種AA 5000系列之 銘-鎂:合金以及具有含氧化鋁或氫氧化鋁之表面部分; (b ) —種底漆層,其係包含一種氧化物或氫氧化物與 含2 0-40莫耳%乙烯基膦酸單元之乙晞基膦酸-丙晞酸 共聚物之反應產物;以及 (c ) 種附著於底漆層的塗層組合物,其中塗層組合 物包含一種選自包含聚氯乙缔、環氧化物以及聚酯類 之聚合物中者。 13.如申請專利範圍第1項之方法,其中 步驟(a)之銘合金係包含一種aa 5〇〇〇系列之鋁-鎂合 金以及具有含氧化鋁或氫氧化鋁之表面部分;以及 步驟(b)之乙烯基膦酸-丙烯酸共聚物之含量為1-2〇 公克/升(以該水溶液為基礎)且含有5-5〇莫耳%之乙烯 基膦酸。 -2 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 518278 8 8 8 8 A B c D 、申請專利範圍 14.如申請專利範圍第1 3項之方法,其中水溶液包含水以 及4-10公克/升之共聚物。 -3- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)
TW089101734A 1999-12-21 2000-02-01 Polymer coated aluminum alloy sheet, and processes for making polymer coated aluminum alloy sheet suitable for shaping into a food or beverage container body or container end panel TW518278B (en)

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PCT/US1999/030539 WO2001045866A1 (en) 1999-12-21 1999-12-21 Copolymer primer for aluminum alloy food and beverage containers

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CN1187133C (zh) 2005-02-02
HUP0202408A3 (en) 2004-10-28
EP1239976A1 (en) 2002-09-18
CZ300236B6 (cs) 2009-03-25
CA2380542A1 (en) 2001-06-28
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TR200200511T2 (tr) 2002-06-21
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BR9917478B1 (pt) 2010-05-18
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MXPA02002200A (es) 2003-04-10
ATE246547T1 (de) 2003-08-15
KR20020069001A (ko) 2002-08-28
WO2001045866A1 (en) 2001-06-28
BR9917478A (pt) 2002-05-14
EP1239976B1 (en) 2003-08-06
NO20021039L (no) 2002-04-30
JP2003517929A (ja) 2003-06-03
ES2203241T3 (es) 2004-04-01
DK1239976T3 (da) 2003-12-01
DE69910265T2 (de) 2004-06-09
CA2380542C (en) 2007-04-24
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