JP6126457B2 - チャック成型品 - Google Patents
チャック成型品 Download PDFInfo
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- JP6126457B2 JP6126457B2 JP2013108105A JP2013108105A JP6126457B2 JP 6126457 B2 JP6126457 B2 JP 6126457B2 JP 2013108105 A JP2013108105 A JP 2013108105A JP 2013108105 A JP2013108105 A JP 2013108105A JP 6126457 B2 JP6126457 B2 JP 6126457B2
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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
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
- 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
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- 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
-
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/24—End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- 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
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- 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
- B32B2272/00—Resin or rubber layer comprising scrap, waste or recycling material
-
- 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
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- 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
- B32B2307/546—Flexural strength; Flexion stiffness
-
- 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
- B32B2307/70—Other properties
- B32B2307/72—Density
-
- 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
- B32B2435/00—Closures, end caps, stoppers
-
- 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
- B32B2435/00—Closures, end caps, stoppers
- B32B2435/02—Closures, end caps, stoppers for containers
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/46—Bags
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
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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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/15—Bag fasteners
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Slide Fasteners (AREA)
- Laminated Bodies (AREA)
Description
台座層と、
凹形状部または凸形状部を有し、ポリオレフィン樹脂からなるチャックレール層と、
前記台座層と前記チャックレール層の間の接着層を有するチャック成型品であって、
前記台座層が、ポリエチレンテレフタレート100重量部に対し、スチレン−(メタ)アクリル酸メチル−メタクリル酸グリシジル共重合体0.1〜3重量部、柔軟化材3〜20重量部、成形助剤0.05〜1.5重量部よりなるポリエチレンテレフタレート樹脂組成物であり、
接着層を、エポキシ基含有モノマーとエチレンとの共重合体、またはエチレンと(メタ)アクリル酸エステルとジカルボン酸無水物モノマーとの共重合体
とすることにより、この目的を達成したものである。
台座層
台座層は袋内面と溶着され、チャック成型品を袋内面に固定される層であり、帯状で幅は5〜20mm程度、通常8〜15mm程度、厚みは20〜100
μm程度、通常30〜60μm程度である。
1652の方法により測定したエポキシ価が0.5〜4.0meq/gであることが好ましい。より好ましいエポキシ価は1.0から2.5meq/gである。エポキシ価が0.5meq/g未満では、成型に十分な溶融粘度が維持できないとともに、下記で詳しく述べるチャックの結晶化度が所望の範囲内まで低下せずPET樹脂フィルムとの十分なヒートシール性が発現しないばかりか成型チャックが剛直になるため屈曲柔軟性が低下する。一方、4.0meq/gを越えるとPET分子間の再結合が過剰に進行し、成型時にゲル異物が多発する等の支障をきたす。
チャックレール層
本発明のチャック成型品は、一方が嵌合溝を有し、他方が嵌合突条を有する1対の部材からなり、従って、チャックレール層は、断面が凹形状または凸形状の層である。凹形状と凸形状が嵌合し封止機能を発揮する。その形状は、ジッパー付プラスチック袋に使用されているものと同じ形状でよく、幅は特段の事情がなければ台座層と同じでよい。
接着層
接着層は台座層とチャックレール層の層間にあって両層を接着する層であり、厚みは10〜60μm程度、通常20〜50μm程度である。
本発明のチャック成型品の接着層に用いる樹脂は、片面に隣接する前記台座層のPET樹脂組成物、および他面に隣接するチャックレール層のポリオレフィン樹脂との双方に良好な熱接着性を有する樹脂であって、エポキシ基含有モノマーとエチレンとの共重合体またはエチレンと(メタ)アクリル酸エステルとジカルボン酸無水物モノマーとの共重合体の少なくとも一種からなるものである。
成型押出されたチャックは、結晶化させないように5〜35℃の水温に調整された水槽内を通過させ冷却しながら巻き取られる。
・PET−1:ポリエチレンテレフタレート樹脂、
ユニチカ製“MA−2101M”
密度=1340kg/m3、融点=255℃、
固有粘度=0.62dl/g
・PET−2:ポリエチレンテレフタレート樹脂、力鵬製“S103”
密度=1340kg/m3、融点=252℃、
固有粘度=0.80dl/g
・StGM−1:スチレン−(メタ)アクリル酸メチル−メタクリル酸グリシジル共重合体であり、重量平均分子量=10800、
エポキシ価=1.8meq/g、Tg=52℃
・StGM−2:スチレン−(メタ)アクリル酸メチル−メタクリル酸グリシジル共重合体であり、重量平均分子量=6700、
エポキシ価=3.5meq/g、Tg=54℃
・Soft−1:エチレン−アクリル酸ブチル共重合体、
アクリル酸ブチル含有率=30%、
密度=930kg/m3、融点=78℃
・Soft−2:グリコール変性ポリエステル(ポリシクロヘキシレンジメチレンテレフタレート)、密度=1290kg/m3
イーストマンケミカル製 EB062
・StCa:ステアリン酸カルシウム、堺化学工業製“SC−100”
・ESO:エポキシ化大豆油、旭電化製“アデカサイザーO−130P”
・Ad−1:ジカルボン酸無水物グラフトポリエチレン、
三菱化学製“モディックM545”、密度=900kg/m3、
融点=111℃
・Ad−2:エチレン-メタクリル酸グリシジル共重合体、
住友化学製“ボンドファーストE”、密度=940kg/m3、
融点=103℃
・Ad−3:エチレン-アクリル酸エステル-無水マレイン酸共重合体、
アルケマ製“ボンダインTX8030”、
MFR=5g/10分、融点=95℃
・LLDPE:線状低密度ポリエチレン、
プライムポリマー製“エボリューSP2530S”、
MFR=2.6g/10分、密度=924kg/m3、
融点=122℃
・PETフィルム:帝人デュポンフィルム製“マイラーフィルム”、
厚み=15μm
<チャック成型品の作製>
下表の組成で混合したものを、圧縮比=2.8、L/D=32、直径40mm のダルメージスクリューを備えた押出機が3基装備されている3層押出機を用いて、押出温度265℃で溶融押出して成型物を作製した。多層押出機の先端には、フランジ部分の幅が8mmである凹型チャック形状、および凸型チャック形状の異形押出ダイスが連結されている。
<成型品の台座部の結晶化度>
前述の式(a)により求めた。
<PET樹脂フィルムとの熱溶着性の評価>
得られた成型品をPET樹脂フィルム上に重ね合わせ、テープ形状のフランジ部を、温度=180℃、圧力=0.2MPa、シール時間=0.8秒でヒートシールを行い、PET樹脂フィルムとチャック成型品との熱溶着性を評価した。チャック成型品がPET樹脂フィルムと良好に接着していて、チャック嵌合性の評価においてもチャック成型品がPET樹脂フィルムとの接着に問題がないものを溶着性問題無しとした。
<チャック嵌合性の評価>
前記のチャック成型品を熱溶着したPET樹脂フィルムの周縁部3方をヒートシールして、内寸が100×100mmのチャック付袋を作製した。この中に水を50ml入れ、チャックの開閉を各30回行った後、袋を逆さにして水の漏れがないかを評価した。
Claims (4)
- 台座層と
凹形状部または凸形状部を有し、ポリオレフィン樹脂からなるチャックレール層と、
前記台座層と前記チャックレール層の間の接着層を有するチャック成型品であって、
前記台座層がポリエチレンテレフタレート100重量部に対し、スチレン−(メタ)アクリル酸メチル−メタクリル酸グリシジル共重合体0.1〜3重量部、柔軟化材3〜20重量部、成形助剤0.05〜1.5重量部よりなるポリエチレンテレフタレート樹脂組成物であり、
接着層が、エポキシ基含有モノマーとエチレンとの共重合体、またはエチレンと(メタ)アクリル酸エステルとジカルボン酸無水物モノマーとの共重合体
であることを特徴とするチャック成型品。 - ポリエチレンテレフタレートの固有粘度が0.6〜0.8dl/gである請求項1〜2記載のチャック成型品。
- スチレン−(メタ)アクリル酸メチル−メタクリル酸グリシジル共重合体のエポキシ価が0.5〜4.0meq/gである請求項1記載のチャック成型品。
- 台座層を形成するポリエチレンテレフタレートの結晶化度が6〜11.5%である請求項1記載のチャック成型品。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2013108105A JP6126457B2 (ja) | 2013-05-22 | 2013-05-22 | チャック成型品 |
US14/282,178 US20140345088A1 (en) | 2013-05-22 | 2014-05-20 | Molded Fastener Part |
EP14169035.4A EP2805815A1 (en) | 2013-05-22 | 2014-05-20 | Molded fastener part |
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JP2013108105A JP6126457B2 (ja) | 2013-05-22 | 2013-05-22 | チャック成型品 |
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JP2014226311A JP2014226311A (ja) | 2014-12-08 |
JP6126457B2 true JP6126457B2 (ja) | 2017-05-10 |
Family
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JP2013108105A Active JP6126457B2 (ja) | 2013-05-22 | 2013-05-22 | チャック成型品 |
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US (1) | US20140345088A1 (ja) |
EP (1) | EP2805815A1 (ja) |
JP (1) | JP6126457B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101329641B1 (ko) * | 2011-10-18 | 2013-11-14 | 한국생산기술연구원 | 이형성이 개선된 자기점착성 보호필름 및 이를 부착한 물품 |
US10926450B2 (en) | 2012-08-14 | 2021-02-23 | Sonoco Development, Inc. | Method of making a plastic film with integrated zipper closure, and plastic bag having an integrated zipper closure |
US20210323732A1 (en) * | 2018-07-20 | 2021-10-21 | Idemitsu Unitech Co., Ltd. | Zipper tape, and container with zipper tape |
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-
2013
- 2013-05-22 JP JP2013108105A patent/JP6126457B2/ja active Active
-
2014
- 2014-05-20 US US14/282,178 patent/US20140345088A1/en not_active Abandoned
- 2014-05-20 EP EP14169035.4A patent/EP2805815A1/en not_active Withdrawn
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US20140345088A1 (en) | 2014-11-27 |
JP2014226311A (ja) | 2014-12-08 |
EP2805815A1 (en) | 2014-11-26 |
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