JP6556050B2 - 湿気硬化型ホットメルト接着剤 - Google Patents
湿気硬化型ホットメルト接着剤 Download PDFInfo
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- JP6556050B2 JP6556050B2 JP2015254365A JP2015254365A JP6556050B2 JP 6556050 B2 JP6556050 B2 JP 6556050B2 JP 2015254365 A JP2015254365 A JP 2015254365A JP 2015254365 A JP2015254365 A JP 2015254365A JP 6556050 B2 JP6556050 B2 JP 6556050B2
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- Prior art keywords
- hot melt
- melt adhesive
- moisture
- copolymer
- ethylene
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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Description
(B)170℃の粘度が10,000mPa・s以下のメタロセン系ポリオレフィン、及び
(C)ポリエステルポリエーテルコポリマーを含む、湿気硬化型ホットメルト接着剤。
(B)メタロセン系ポリオレフィン、
(C)ポリエステルポリエーテルコポリマー、
(D)エチレン/カルボン酸エステル共重合体、ならびに
(E)α−メチルスチレン系樹脂
を混合する工程を含む、湿気硬化型ホットメルト接着剤の製造方法。
本発明に係る湿気硬化型ホットメルト接着剤は、(A)末端イソシアネート基含有ウレタンプレポリマー(「成分(A)」とも記載する)を含む。(A)末端イソシアネート基含有ウレタンプレポリマーとは、通常「ウレタンプレポリマー」と理解されるものであって、「イソシアネート基を末端に有するもの」であれば、目的とする湿気硬化型ホットメルト接着剤を得ることができる限り、特に制限されるものではない。このようなウレタンプレポリマーは、ポリオールとイソシアネート化合物とを既知の方法にしたがって反応させることで得られる。
本発明において、湿気硬化型ホットメルト接着剤は、(B)170℃の粘度が10,000mPa・s以下のメタロセン系ポリオレフィン(「成分(B)」または単に「メタロセン系ポリオレフィン」とも記載する。)を含む。
本発明の湿気硬化型ホットメルト接着剤は、(C)ポリエステルポリエーテルコポリマー(単に、「成分(C)」とも記載する。)を含む。湿気硬化型ホットメルト接着剤が成分(C)を含むことにより、初期接着強度が向上する。
本発明において、湿気硬化型ホットメルト接着剤は、(D)エチレン/カルボン酸エステル共重合体(「成分(D)」とも記載する。)を含むのが好ましい。湿気硬化型ホットメルト接着剤が成分(D)を含むことにより、木材やPETフィルムに対する接着性が向上する。なお、本明細書において、成分(B)に含まれる化合物は、成分(D)には該当しないものとする。
本発明の湿気硬化型ホットメルト接着剤は、(E)α−メチルスチレン系樹脂(「成分(E)」とも記載する)を含むのが好ましい。(E)α−メチルスチレン系樹脂は、α−メチルスチレン重合体又はスチレン/α−メチルスチレン共重合体が用いられる。
本発明に係る積層体は、上記湿気硬化型ホットメルト接着剤を有する。積層体は、本発明に係る湿気硬化型ホットメルト接着剤を用いて、「基材」の表面に「被着体」をラミネートすることで製造される。積層体を製造する際、湿気硬化型ホットメルト接着剤は、基材側に塗布してもよいし、被着体側に塗布してもよいし、両方に塗布してもよい。なお、基材と被着体の材料および形態等は、同一であっても異なっていてもよい。
セメントボード、石膏ボード、および軽量気泡コンクリート(ALC)等の無機系材料;ならびに
ポリエチレンテレフタレート、ポリカーボネート、ポリウレタン、ポリエチレン、およびポリプロピレン等のプラスチック材料。
木材をシート状に加工した突板;並びに
各種化粧印刷の施された化粧紙。
<ポリオール成分>
(A1)ポリテトラメチレンエーテルグリコール(PTMG2000(商品名)、三菱化学社製、分子量:2000、水酸基価53〜59(mgKOH/g))、
(A2)ポリエステルポリオール(Dynacoll7380(商品名)、エボニック社製、融点70℃、水酸基価27〜34(mgKOH/g)))
(A3)ポリエステルポリオール(HS 2H−350S(商品名)、豊国製油社製、融点65℃、水酸基価27〜34(mgKOH/g)))
(A4)ポリエステルポリオール(HS 2H−359T(商品名)、豊国製油社製、融点110℃、水酸基価27〜34(mgKOH/g))
<イソシアネート成分>
(A5)4,4’−ジフェニルメタンジイソシアネート(ミリオネートMT(商品名)東ソー社製)
(B1)メタロセン系エチレン/プロピレン共重合体(リコセンPP2602(商品名)、クラリアント社製、粘度8000mPa・s:170℃)
(B2)メタロセン系エチレン/プロピレン共重合体(リコセンPP1602(商品名)、クラリアント社製、粘度7000mPa・s:170℃)
(B3)メタロセン系ポリエチレン(リコセンPE4201(商品名)、クラリアント社製、粘度60mPa・s:170℃)
(B’4)メタロセン系エチレン共重合体(カーネルKJ−640T(商品名)、日本ポリエチレン社製、粘度400000mPa・s:170℃)
(B’5)非メタロセン系ポリプロピレン(ハイワックスNP105(商品名)、三井化学社製、粘度180mPa・s:170℃)
(C1)ポリエステルポリエーテルコポリマー(ハイトレル3078(商品名)、東レ・デュポン社製、MFR:5g/10min(190℃、2.16kg))
(C2)ポリエステルポリエーテルコポリマー(ハイトレル3100(商品名)、東レ・デュポン社製、MFR:14g/10min(190℃、2.16kg))
(C3)ポリエステルポリエーテルコポリマー(ハイトレル4056(商品名)、東レ・デュポン社製、MFR:5.6g/10min(190℃、2.16kg))
(D1)エチレン酢酸ビニル共重合体(ウルトラセン760(商品名)東ソー社製)、VA含有量42%、MFR70g/10min(190℃、2.16kg))
(D2)エチレン酢酸ビニル共重合体(エバフレックスEV45X(商品名)、三井デュポンポリケミカル社製、VA含有量46%、MFR100g/10min(190℃、2.16kg))
(D3)エチレン酢酸ビニル共重合体(ウルトラセン720(商品名)東ソー社製)、VA含有量28%、MFR150g/10min(190℃、2.16kg))
(D4)エチレンアクリル酸エチル共重合体(NUC−6570(商品名)ダウケミカル社製)、EA含有量25%、MFR20g/10min(190℃、2.16kg))
(D5)エチレンメタクリル酸メチル共重合体(ACRIFT CM5021(商品名)、MMA含有量28%、MFR450g/10min(190℃、2.16kg))
なお、上記略号の意味は下記のとおりである。
VA:酢酸ビニル
EA:アクリル酸エチル
MMA:メタクリル酸メチル
MFR:メルトフローレート
(E1)α−メチルスチレン(Kristalex3100(商品名)、イーストマンケミカル社製、軟化点100℃)
(E2)α−メチルスチレン(Kristalex3085(商品名)、イーストマンケミカル社製、軟化点85℃)
(E3)α−メチルスチレン(FTR2140(商品名)、三井化学社製、軟化点137℃)
(E4)α−メチルスチレン(Endex155(商品名)、イーストマンケミカル社製、軟化点153℃)
(F1)粘着付与剤(C9樹脂(NovaresTN150(商品名)、ノバレス・ルトガーズ社製、軟化点150℃)
(F2)フェノール系酸化防止剤(AO−60(商品名)、アデカ社製)
(F3)蛍光増白剤(TinopalOB(商品名)、BASF社製)
(F4)酸化チタン(JR−405(商品名)、テイカ社製)
これらの成分を表1および表2に示す組成で混合し、湿気硬化型ホットメルト接着剤を製造した。
万能攪拌機を用いて成分(C1)、(E1)、(F2)及び(F4)を約182℃で約1時間かけて溶融混合し、マスターバッチを作製した。このマスターバッチと、ポリオール成分である(A1)と(A2)、(B1)、(D1)および(F3)を反応容器に添加した。容器内の添加物に150℃で1時間予熱をかけた後、同温度で減圧下1時間攪拌した。添加物から水分が取り除かれ、十分に混練されていることを確認した後、(A5)を添加し、同温度で減圧下1時間攪拌した。その後、さらに触媒であるジモルホリノジエチルエーテル(U−CAT 660M(商品名) サンアプロ社製)0.05重量部を添加し、減圧下で30分攪拌し、湿気硬化型ホットメルト接着剤を得た。
表1または表2に示されるように各成分を配合し、実施例1と同様の方法で湿気硬化型ホットメルト接着剤を製造した。
JAI7−1991、B法に基づき、170℃で各湿気硬化型ホットメルト接着剤の粘度を評価した。測定には、ブルックフィールド粘度計、27番ローターを使用した。
2枚のPETフィルム(50μm)の間に50±5μmの接着層が形成されるようにホットメルト接着剤を塗工した後、この積層PETフィルムを25mm幅にカットし、これを試験片とした。試験片の端部を手で剥離し、剥離部分をツマミとした。恒温槽で試験片を1分間40℃で予備的に熱した後、試験片の一方のツマミを恒温槽上部に固定し、もう一方のツマミには245gの錘を吊るし、測定を開始した。測定開始から5分後、10分後にクリープした距離を測定した。反応前の初期接着強度の評価が目的のため、塗工から測定開始までの一連の動作は5分以内とした。尚、実施例及び比較例のいずれも、積層フィルムのクリープ時の剥離様相はホットメルト接着剤の凝集破壊であった。評価基準を以下に示す。
◎:クリープした距離が0.5cm未満であった。
○:クリープした距離が0.5cm以上、1.0cm未満であった。
△:クリープした距離が1.0cm以上、1.5cm未満であった。
×:クリープした距離が1.5cm以上であった。
パーティクルボード(10.0cm×10.0cm×1.5cm)を恒温器に入れ、25℃で12時間以上静置して恒温化し、これを試験用材料とした。試験用材料であるパーティクルボードに、実施例及び比較例のホットメルト接着剤を170℃で塗工し、厚さが70±10μmになるようにロールコーターで調整した。接着剤層の厚さを調整した後、30秒毎にベニヤ板の小片(1.5cm×5.0cm)を指圧でパーティクルボードへ貼り付けた。そのベニヤ板の接着可否によって、オープンタイムを評価した。評価基準を以下に示す。
○:塗工後180秒以上でもベニヤ板が接着した。
△:塗工後120秒、150秒までベニヤ板が接着したが、180秒以上ではベニヤ版が接着しなかった。
×:塗工後90秒以内でしかベニヤ板が接着しなかった。
パーティクルボード(10.0cm×10.0cm×1.5cm)を恒温器に入れ、25℃で12時間以上静置して恒温化し、これを試験用材料とした。試験用材料であるパーティクルボードに、実施例及び比較例の各ホットメルト接着剤を170℃で塗工し、厚さが70±10μmになるようにロールコーターで調整した。本操作の際に、湿気硬化型ホットメルト接着剤の塗工性および糸曳き性を目視で評価した。評価基準を以下に示す。
○:均一に塗工できた。
△:塗工方向後方、パーティクルボードのエッジにホットメルト接着剤がやや残った。
×:塗工方向後方、パーティクルボードのエッジにホットメルト接着剤がかなり残った。
○:糸ひきがなかった。
△:やや糸引きがみられたが、容易に糸切れした。
×:糸ひきが見られ、ラインから基材を取り上げてもなお糸が続き、切れが悪かった。
Claims (5)
- (A)末端イソシアネート基含有ウレタンプレポリマー、
(B)170℃の粘度が10,000mPa・s以下のメタロセン系ポリオレフィン、及び
(C)ポリエステルポリエーテルコポリマーを含む、湿気硬化型ホットメルト接着剤。 - さらに、(D)エチレン/カルボン酸エステル共重合体を含む、請求項1に記載の湿気硬化型ホットメルト接着剤。
- さらに、(E)α−メチルスチレン系樹脂を含む、請求項1または2に記載の湿気硬化型ホットメルト接着剤。
- (D)エチレン/カルボン酸エステル共重合体はエチレン/酢酸ビニル共重合体を含む、請求項2または3に記載の湿気硬化型ホットメルト接着剤。
- 請求項1〜4のいずれかに記載の湿気硬化型ホットメルト接着剤を有する積層体。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015254365A JP6556050B2 (ja) | 2015-12-25 | 2015-12-25 | 湿気硬化型ホットメルト接着剤 |
| PCT/JP2016/087917 WO2017110794A1 (en) | 2015-12-25 | 2016-12-20 | Moisture-curable hot melt adhesive |
| CN201680074869.8A CN108431165B (zh) | 2015-12-25 | 2016-12-20 | 可湿固化的热熔性粘合剂 |
| EP16878683.8A EP3394198B1 (en) | 2015-12-25 | 2016-12-20 | Moisture-curable hot melt adhesive |
| US16/013,198 US11236257B2 (en) | 2015-12-25 | 2018-06-20 | Moisture-curable hot melt adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015254365A JP6556050B2 (ja) | 2015-12-25 | 2015-12-25 | 湿気硬化型ホットメルト接着剤 |
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| Publication Number | Publication Date |
|---|---|
| JP2017115081A JP2017115081A (ja) | 2017-06-29 |
| JP6556050B2 true JP6556050B2 (ja) | 2019-08-07 |
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| JP2015254365A Expired - Fee Related JP6556050B2 (ja) | 2015-12-25 | 2015-12-25 | 湿気硬化型ホットメルト接着剤 |
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| Country | Link |
|---|---|
| US (1) | US11236257B2 (ja) |
| EP (1) | EP3394198B1 (ja) |
| JP (1) | JP6556050B2 (ja) |
| CN (1) | CN108431165B (ja) |
| WO (1) | WO2017110794A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3666971B1 (en) * | 2017-09-25 | 2024-04-17 | DIC Corporation | Method for manufacturing artificial leather |
| EP3668925A1 (en) * | 2017-09-29 | 2020-06-24 | Kraton Polymers LLC | Elastomeric compositions providing improved wet grip |
| EP3891240B1 (en) | 2018-12-06 | 2025-09-24 | Eastman Chemical (China) Co., Ltd. | Adhesive compositions including 1, 4-cyclohexanedimethanol and methods of making same |
| ES2940492T3 (es) * | 2018-12-21 | 2023-05-08 | Sika Tech Ag | Adhesivos de fusión en caliente reactivos que tienen una buena adherencia a sustratos tanto polares como no polares |
| US12187879B2 (en) * | 2019-03-29 | 2025-01-07 | Dai Nippon Printing Co., Ltd. | Cosmetic sheet and cosmetic material using same, and resin composition for surface protection layer |
| WO2021041534A1 (en) * | 2019-08-26 | 2021-03-04 | H.B. Fuller Company | Fast set moisture curable hot melt adhesive composition and articles including the same |
| JP7487310B2 (ja) * | 2019-12-17 | 2024-05-20 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェン | ポリウレタンホットメルト接着剤組成物およびその製造方法 |
| JP7691635B2 (ja) * | 2021-01-21 | 2025-06-12 | Dic株式会社 | 湿気硬化型ポリウレタンホットメルト樹脂組成物、及び、接着剤 |
| CN117916282A (zh) * | 2021-08-16 | 2024-04-19 | H.B.富乐公司 | 可持续的混杂反应性热熔融粘合剂组合物 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4775719A (en) * | 1986-01-29 | 1988-10-04 | H. B. Fuller Company | Thermally stable hot melt moisture-cure polyurethane adhesive composition |
| JPH0717890B2 (ja) * | 1989-05-20 | 1995-03-01 | 新田ゼラチン株式会社 | 反応性ホットメルト接着剤 |
| DE69106134T2 (de) | 1990-03-30 | 1995-05-11 | H.B. Fuller Licensing & Financing, Inc., Wilmington, Del. | Wasserhärtbarer polyurethanheissschmelzklebstoff. |
| JPH048786A (ja) * | 1990-04-26 | 1992-01-13 | Sunstar Eng Inc | ポリオレフィン用湿気硬化性反応型ホットメルト接着剤 |
| US6482878B1 (en) * | 2000-04-21 | 2002-11-19 | National Starch And Chemical Investment Holding Corporation | Polyurethane hotmelt adhesives with acrylic copolymers and thermoplastic resins |
| JP2004010809A (ja) * | 2002-06-10 | 2004-01-15 | Sanyo Chem Ind Ltd | 反応性ホットメルト接着剤 |
| US20070141373A1 (en) * | 2005-12-20 | 2007-06-21 | Sommerfeld Eugene G | Segmented copolyesterether adhesive compositions |
| US7986450B2 (en) * | 2006-09-22 | 2011-07-26 | E Ink Corporation | Electro-optic display and materials for use therein |
| JP5194518B2 (ja) * | 2007-03-30 | 2013-05-08 | Dic株式会社 | 湿気硬化型ポリウレタンホットメルト接着剤及びそれを用いた造作材 |
| US8076407B2 (en) * | 2008-02-08 | 2011-12-13 | Henkel Ag & Co. Kgaa | Hot melt adhesive |
| CA2834866C (en) | 2011-05-12 | 2019-06-11 | H.B. Fuller Company | Hot melt moisture cure adhesive compositions |
| US9593235B2 (en) * | 2013-02-15 | 2017-03-14 | H.B. Fuller Company | Reaction product of propylene polymer and wax, graft copolymers derived from polypropylene polymer and wax, hot melt adhesive compositions including the same, and methods of using and making the same |
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| JP2017115081A (ja) | 2017-06-29 |
| CN108431165A (zh) | 2018-08-21 |
| WO2017110794A1 (en) | 2017-06-29 |
| US11236257B2 (en) | 2022-02-01 |
| EP3394198A4 (en) | 2019-07-24 |
| CN108431165B (zh) | 2022-04-19 |
| EP3394198A1 (en) | 2018-10-31 |
| EP3394198B1 (en) | 2022-08-17 |
| US20180298254A1 (en) | 2018-10-18 |
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