TW431968B - A biaxially oriented polypropylene film to be metallized, a metallized biaxially oriented polypropylene film, and a laminate formed by using it - Google Patents
A biaxially oriented polypropylene film to be metallized, a metallized biaxially oriented polypropylene film, and a laminate formed by using it Download PDFInfo
- Publication number
- TW431968B TW431968B TW87120173A TW87120173A TW431968B TW 431968 B TW431968 B TW 431968B TW 87120173 A TW87120173 A TW 87120173A TW 87120173 A TW87120173 A TW 87120173A TW 431968 B TW431968 B TW 431968B
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- Prior art keywords
- metallized
- biaxially oriented
- oriented polypropylene
- polypropylene film
- film
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered 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
- B32B15/08—Layered 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 of synthetic resin
- B32B15/085—Layered 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 of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/91—Product with molecular orientation
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- 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]
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- 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]
- Y10T428/31678—Of metal
- Y10T428/31692—Next to addition polymer from unsaturated monomers
-
- 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]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
-
- 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]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
Landscapes
- Laminated Bodies (AREA)
- Gears, Cams (AREA)
Description
ΜΗ·:)丄 y〇0 有兩個所述的卡K因 螺^,各卡片固定螺栓穿過各卡片 穿孔鎖入各卡片螺孔定位。 、/本創作所述鑄造内輪與Μ述鍛造齒環為平 放設置的形離.产4 ρ ^ .,在以鑄1"内輪外周面的下半部凹入形成一 s '入、級’又在該鑄造内輪周圍設有嵌入階級的位 置%繞穿設多個肉空了丨 々 内穿孔’各個内穿孔為垂直貫穿的孔洞; 在該锻造齒環的内周面配合嵌入階級的形狀朝内凸設 =設^環’將該嵌設固定環伸人該嵌人階級内,又在 ^ 口夂%對應多個内穿孔的位置穿設多個外穿孔,各 7外穿孔為上、下位置正對各内穿孔的垂直孔洞,在各外 牙孔乂及各内穿孔分別穿置結合—固定螺栓螺帽組。 部 内 部 側 更進步,本創作在所述鑄造内輪的中央設有一管 。“邛為!直的圓管體,所述軸孔穿設形成在該管部 在該管部外周面的中間朝朝周圍延伸形成_圓形的盤 所述的嵌人階級是凹人形成在該盤部外周面的下半 所述各内穿孔是穿設在該盤部的周圍設有該钱入階级 的位置;所述嵌設固定環是由 朝内凸設。 斤…齒環内周面的中間 本創作在鑄造内輪與鍛造齒環之 造,以可拆卸固定構造將鍛造齒環’可拆卸固定構 鎮造内輪的周圍。 Ύ拆卸的方式結合在 本創作由於鍛造齒環與鑄造内輪之 齒環的凸齒磨損後’即可將鍛造齒環二可拆卸’當鍛造 下更換,降低使用者維修的成本。此夕广造内輪的周圍取 尺寸規格化,當需要使用不同外徑的以右將鑄造内輪的 u、時’拆卸原有的 5 料训68 锻造齒環換上具有不同外徑的 造内輪,如此一來就能提高產 外,當本創#使用時,能利用 來自於齒輪轉動時候所產生的 密且而ί用的&齒進行齒輪的唾 果,同時由於齒輪鑄造的部分 的成本。 鍛造齒環即可沿用内側的缚 品的使用率,降低開銷。此 铸造内輪的抗震效果,吸收 震動,又以鍛造齒環提供精 合作用,具有較佳的使用效 比例降低,因此能節省製造 【實施方式】 本創作提供一種複合齒輪,如圖1至圖4所示的第— 較佳實施例,包括: -鑄造内㉟1〇’為平放設置的圓形的鑄造輪體,並且 具有上、下面以及外周面,在鑄造内輪,〇的中心沿上、下 方向貫穿車由孔11’該軸孔U為圓形孔並且在周圍的孔壁 凹設一沿上、下方向延伸的鍵槽12,又在缚造内輪10外周 面的相反兩側分別凹設—沿上、下方向延伸的内鍵槽13, 並在鎮造内輪10上面周緣對應各内鍵槽13上端兩側的位 置穿設一對卡片螺孔14。 -鍛造齒環20,為平放設置的圓形的鍛造環體,該鍛 造齒環20的内徑與鑄造内輪1Q的外徑相同並套設在禱造 内輪10的周圍,鍛造齒環2〇上、下的高度高於鎮造内輪 10上、下的兩度,並在内周面對應鑄造内輪兩内鍵槽 13的相反位置分別凹設—沿上、了方向延伸的外鍵槽21, 各外鍵槽的上端貫穿铸造内輪1〇的上面,在锻造齒環 20内周面的下緣朝内以環繞的形態凸設—内輪卡緣&以 内輪卡緣22卡抵鑄造内輪1〇下面的周緣,鍛造齒環2〇並 M431968 在内周面高於鑄造内輪1〇上面的上緣位置以環繞的方式凹 設一卡片嵌溝23; • 在相對的各内鍵槽1 3以及各外鍵槽2 1嵌設一結合鍵 24,各結合鍵24為長條形塊體並且上、下延伸的長度與鑄 造内輪10上、下的高度等長,配合各結合鍵24設有一卡 片2 5 ’各卡片2 5為圓弧形片體並且以中間遮擋各内鍵槽 1 3上端的開口,各卡片25的外緣嵌入鍛造齒環2〇的卡片 嵌溝23’且各卡片25對應各對卡片螺孔14穿設兩卡片穿 •孔251 ’對應各卡片穿孔251設有一卡片固定螺栓26,以 卡片固定螺检26穿過各卡片穿孔25]鎖入各卡片螺孔4 固疋各卡片25的位置,又在鍛造齒環20的外周面以環繞 的方式凸設形成多個凸齒27。 本創作第一較佳實施例,除如前述在鑄造内輪1 0外周 面的相反兩側皆設有内鍵槽彳3,用以配合鍛造齒環2〇内周 面的兩個外鍵槽21嵌設結合鍵24以外,亦可僅在鑄造内 輪1 〇的外周面設有一個内鍵槽1 3,或者在鑄造内輪1 〇的 _周圍&有三個以上的内鍵槽彳3,用以配合相同數量的鎮造 •内和1 〇的外鍵槽21嵌設内鍵槽1 3,並且對應各内鍵槽1 3 的上端同樣設有卡片25用以限制結合鍵24以及鑄造内輪 1 〇的位置,前述卡合結合鍵24的相關構造數量本創作在此 不加以限制。 本創作在第一較佳實施例中,是以結合鍵24嵌入内鍵 槽1 3與外鍵槽21之間,並配合卡片25以及卡片固定螺栓 26加以固定的手段,在鑄造内輪1 〇與鍛造齒環20之間形 成可拆卸固定構造,以可拆卸固定構造將鍛造齒環2〇以可 7 M431968 拆卸勺方式結合在_造内輪]Q的周圍。如此,能利用缚造 内輪1〇的抗震效果,吸收來自於齒輪轉動時候所產生的震 動’又以锻造齒環20提供精密且耐用的凸齒27進行造輪 的嚙合作用’同時由於齒輪鑄造的部分比例降低,因此能 節省製造的成本。 由於鍛造齒環20與鑄造内輪1Q之間可拆卸,當锻造 齒環2〇的凸齒27磨損後’只要鬆開各個卡片固定螺拴26 拆卸各卡片25,即可將鍛造齒環2〇由鑄造内輪1〇的周圍 ,下更換,降低使用者維修的成本。此外,若將 =的尺寸規格化’當需要使用不同外徑的齒輪時, 有的鍛造齒環20換上且右不π冰"AA 原 、上,、有不同外徑的鍛造齒環2〇即 八 用内側的鑄造内輪1(),如此一來 /〇 降低開銷。 來就…產品的使用率, ,創作除前述第一較佳實施例,是以結合鍵 鍵槽1 3盘外|逢诚q彳楚冰α 円 /、乜21 4構這形成可拆卸固定構造,以可拆 ρ固疋構造將鑄造内輪與鍛造齒 拴等構造形土 衣、〇 D以外,亦可利用螺 :構…可拆卸固定構造,將锻造齒環2 方式固定在鑄造内輪W 斥卸的 實施例,包括: 的月®如圖5至圖8的第二較佳 每造内輪1 〇A,為伞妨机恶 造内輪10A的Φ止 的鑄造輪體,在鑄 円輪嫩的中央設有_管部1〇1 释 的圓營俨,y典^ # 101A為暨直 回二,在官部101A外周面的中間朝朝周圍延 一 乂,盤部1 02A,該盤部102A具有上、下 在盤部1 η9Δ从 有上下面以及外周面, 外周面的下半側凹入形成一 103Α; 楸狀的欣入階級 M431968 在管部101A内沿上 '下方向形成一軸孔”A ,該軸孔 1 1A為圓形孔並且在制的孔壁凹設—沿上、下方向延伸的 鍵才曰1 2A又在盤部1 02A周圍設有嵌入階級〇3A的位置 以環繞且等間隔的排列形態穿設多個内穿孔13A,各個内穿 孔1 3A為垂直貫穿的圓孔。
-鍛造齒環2GA ’為平放設置的圓形的鍛造環體,該鍛 衷20A的内;^與鑄造内輪1〇A的外徑相同並套設在鑄 造内輪1GA的周g),在锻造齒環2QA内周面的中間配合嵌 入階級1 03A的形狀朝内凸設一嵌設固定環21A,以嵌設固 定環21A伸入鑄造内輪1〇A的嵌入階級1〇3八内,又在嵌 設固定環21A對應多個内穿孔ι3Α的位置以環繞且等間隔 的排列形態穿設多個外穿孔22A,各個外穿孔22A為上、 下位置正對内穿孔13A的垂直貫穿圓孔,在鍛造齒環2〇a 的各外穿孔22A以及鑄造内輪1〇A的各内穿孔13A分別穿 置、纟。合一固定螺栓螺帽組23A,又在鍛造齒環2〇a的外周 面以環繞的方式凸設形成多個凸齒24A。 剛述本創作第二實施例是以固定螺栓螺帽組23a穿過 内牙孔1 3A以及外穿孔22A的構造作為鍛造齒環2〇a與鑄 造内輪10A之間的可拆卸固定構造,此外,由於本創作第 一較佳實施利以鑄造内輪1 0A與鍛造齒環20A相結合可產 生的功效,以及鍛造齒環20A可更換的功效與前述第一較 佳實施例所述相同,故本創作在此不加以贅述。 乂 【圖式簡單說明】 圖1是本創作第一較佳實施例的分解圖^ 圖2是本創作第一較佳實施例的立體圖。 9 圖3疋本創作第一較佳實施例的俯視圖。 曰4疋本創作第一較佳實施例的剖面圖。 圖5疋本創作第二較佳實施例的分解圖。 圖6疋本創作第二較佳實施例的立體圖。 圖7疋本創作第二較佳實施例的俯視圖。 圖8疋本創作第二較佳實施例的剖面圖。 【主要元件符號說明】 11軸孔 1 3内鍵槽 20鍛造齒環 22内輪卡緣 24結合鍵 251卡片穿孔 2 7凸齒 101A管部 103A嵌入階級 12A鍵槽 20A鍛造齒環 22A外穿孔 24A凸齒 10鑄造内輪 1 2鍵槽 14卡片螺孔 21外鍵槽 23卡片嵌溝 25卡片 26卡片固定螺栓 10A鑄造内輪 1 02A盤部 1 1A軸孔 13A内穿孔 21A嵌設固定j裒 23A固定螺检螺帽組 10
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP35895497 | 1997-12-26 | ||
JP322798 | 1998-01-09 |
Publications (1)
Publication Number | Publication Date |
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TW431968B true TW431968B (en) | 2001-05-01 |
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ID=26336758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW87120173A TW431968B (en) | 1997-12-26 | 1998-12-04 | A biaxially oriented polypropylene film to be metallized, a metallized biaxially oriented polypropylene film, and a laminate formed by using it |
Country Status (8)
Country | Link |
---|---|
US (1) | US6190760B1 (zh) |
EP (1) | EP0925912B1 (zh) |
KR (1) | KR19990063428A (zh) |
CN (1) | CN1108923C (zh) |
CA (1) | CA2256981A1 (zh) |
DE (1) | DE69837745T2 (zh) |
ID (1) | ID21595A (zh) |
TW (1) | TW431968B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8728616B2 (en) | 2009-01-23 | 2014-05-20 | Hiroshima University | Polymer sheet and method for producing same |
US8735523B2 (en) | 2007-03-02 | 2014-05-27 | Hiroshima University | Polymer crystalline materials |
Families Citing this family (37)
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US20050112392A1 (en) * | 2003-11-17 | 2005-05-26 | Applied Extrusion Technologies, Inc. | Film with improved antiblocking and adhesion properties |
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US20090108019A1 (en) * | 2007-10-30 | 2009-04-30 | Gino Kronfle | Ice cream packaging |
WO2013003756A1 (en) * | 2011-06-30 | 2013-01-03 | Toray Plastics (America), Inc. | Method to reduce metal pick-off from edges of metallized biaxially oriented films |
WO2013046224A2 (en) | 2011-08-08 | 2013-04-04 | Essel Propack Limited | Metallized polyethylene laminates |
EP2794263B2 (en) | 2011-09-07 | 2022-12-28 | Jindal Films Europe Virton SPRL | Pressure-sensitive label structures, and methods of making same |
WO2015075054A1 (en) | 2013-11-22 | 2015-05-28 | Borealis Ag | Low emission propylene homopolymer |
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CN103756128A (zh) * | 2013-12-18 | 2014-04-30 | 芜湖万润机械有限责任公司 | 一种电容器用等规聚乙烯金属化薄膜及其制备方法 |
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CN103923386B (zh) * | 2014-04-10 | 2016-08-17 | 铜陵市新洲电子科技有限责任公司 | 一种改性聚丙烯电容器金属化薄膜及其制备方法 |
JP7437115B2 (ja) * | 2016-03-28 | 2024-02-22 | 東洋紡株式会社 | 二軸延伸積層ポリプロピレンフィルム |
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DE4443458A1 (de) * | 1994-12-07 | 1996-06-13 | Wolff Walsrode Ag | Mehrschichtige, gereckte, heißsiegelbare Polypropylenfolie |
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JPH0994929A (ja) * | 1995-10-02 | 1997-04-08 | Toray Ind Inc | 金属酸化物蒸着用二軸配向ポリプロピレン複合フイルム及び金属酸化物蒸着二軸配向ポリプロピレン複合フイルム |
US6013353A (en) * | 1996-05-07 | 2000-01-11 | Mobil Oil Corporation | Metallized multilayer packaging film |
-
1998
- 1998-12-04 US US09/205,562 patent/US6190760B1/en not_active Expired - Lifetime
- 1998-12-04 TW TW87120173A patent/TW431968B/zh not_active IP Right Cessation
- 1998-12-23 CA CA 2256981 patent/CA2256981A1/en not_active Abandoned
- 1998-12-23 ID ID981667A patent/ID21595A/id unknown
- 1998-12-24 DE DE1998637745 patent/DE69837745T2/de not_active Expired - Lifetime
- 1998-12-24 EP EP19980310714 patent/EP0925912B1/en not_active Expired - Lifetime
- 1998-12-24 KR KR1019980058228A patent/KR19990063428A/ko not_active Application Discontinuation
- 1998-12-25 CN CN98126279A patent/CN1108923C/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8735523B2 (en) | 2007-03-02 | 2014-05-27 | Hiroshima University | Polymer crystalline materials |
US8728616B2 (en) | 2009-01-23 | 2014-05-20 | Hiroshima University | Polymer sheet and method for producing same |
Also Published As
Publication number | Publication date |
---|---|
EP0925912A2 (en) | 1999-06-30 |
CN1223198A (zh) | 1999-07-21 |
EP0925912B1 (en) | 2007-05-09 |
EP0925912A3 (en) | 2001-09-19 |
CA2256981A1 (en) | 1999-06-26 |
DE69837745T2 (de) | 2008-01-10 |
ID21595A (id) | 1999-07-01 |
US6190760B1 (en) | 2001-02-20 |
DE69837745D1 (de) | 2007-06-21 |
KR19990063428A (ko) | 1999-07-26 |
CN1108923C (zh) | 2003-05-21 |
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