JP2017520670A - 熱可塑性ポリウレタンホットメルト接着剤 - Google Patents
熱可塑性ポリウレタンホットメルト接着剤 Download PDFInfo
- Publication number
- JP2017520670A JP2017520670A JP2017512108A JP2017512108A JP2017520670A JP 2017520670 A JP2017520670 A JP 2017520670A JP 2017512108 A JP2017512108 A JP 2017512108A JP 2017512108 A JP2017512108 A JP 2017512108A JP 2017520670 A JP2017520670 A JP 2017520670A
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- JP
- Japan
- Prior art keywords
- hot melt
- melt adhesive
- adhesive composition
- weight
- thermoplastic polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 239000004433 Thermoplastic polyurethane Substances 0.000 title claims abstract description 86
- 239000004831 Hot glue Substances 0.000 title claims abstract description 67
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- 229920005906 polyester polyol Polymers 0.000 claims abstract description 63
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 12
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 12
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims abstract description 6
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 3
- 230000001070 adhesive effect Effects 0.000 claims description 32
- 239000000853 adhesive Substances 0.000 claims description 31
- 150000001875 compounds Chemical class 0.000 claims description 19
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- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 3
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- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 3
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 2
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 2
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
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- 150000001298 alcohols Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
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- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
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- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
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Abstract
Description
熱可塑性ポリウレタンコポリマーが、
少なくとも1種のポリエステルポリオール;および
少なくとも1つのポリイソシアネート
の反応生成物を含み、
ここで、ポリエステルポリオールのOH基に対するポリイソシアネートのNCO基のモル比が0.95:1未満であり、
熱可塑性ポリウレタンコポリマーの粘度は、160℃で1,000〜100,000mPasであり、
熱可塑性ポリウレタンコポリマーは、熱的に安定であり、および
熱安定性は、160℃で6時間後の熱可塑性ポリウレタンコポリマーの初期粘度と比較して±10%未満の粘度変化として定義される。
a)40〜150℃、好ましくは60〜140℃、より好ましくは80〜140℃(以下に定義のDSCによる決定)の融点(Tm)を有する少なくとも1種の半結晶性ポリエステルポリオール、および
b)少なくとも1種の非結晶性ポリエステルポリオール
を含むことができる。
c)750g/mol未満の数平均分子量(Mn)を有する非結晶性ポリエステルポリオール;および
d)少なくとも750g/molの数平均分子量(Mn)を有する非結晶性ポリエステルポリオール
を含む。
1)ホットメルト接着剤組成物を攪拌も剪断も伴わずに加熱容器内で溶融する工程;
2)工程1)の溶融ホットメルト接着剤組成物を、歯車またはピストンポンプより加熱ホースを通してポンプ輸送する工程;および
3)ホットメルト接着剤組成物をノズル、ローラーまたはスプレーヘッドより基材上へ適用する工程
を含む方法で基材へ適用することができる。
本発明では、以下の測定方法を採用する。
ポリエステルポリオールおよびイルガノックス1010をガラスフラスコ中へ秤量し、機械的に撹拌しながら120℃に加熱した。フラスコを密閉し、真空ポンプより1時間(圧力2〜5mbar)真空を適用して水を除去した。フレークMDIを加え、130℃でヒドロキシル基と反応させた。この反応は、2200cm−1でのNCO吸収が消失するまで、赤外分光法で追跡した。
これは、±0.01mgまで測定可能なマイクロ天秤およびMettler Toledo TA Instruments Q100/Q1000 DSC装置を用いて測定した。DSCは、インジウム標準を用いて較正した。試料10〜15mgをアルミニウムDSCパンに秤量し、蓋をしっかりと固定した。使用前にDSCチャンバーの温度を40℃に設定した。サンプルパンおよびリファレンスパン(ブランク)をDSCセルチャンバーに入れた。15℃/分の冷却速度で温度を−50℃に下げた。温度を−50℃に保持し、次いで毎分5℃の加熱速度で150℃に上昇させた。Tgは熱流における変曲から得られ、Tmは熱流におけるピークから得られた。
各化合物/組成物を、同じクロマトグラフィー条件下でゲルパーミエーションクロマトグラフィー(GPC)によって分子量およびモル質量分布について分析した。試験試料をN,N−ジメチルアセトアミドに溶解し、調製した各試料溶液を0.20μmシリンジフィルターを通して分析バイアルに濾過した。調製試料溶液を、80℃にてN,N−ジメチルアセトアミド/LiCl溶出および屈折率指数でのStyragelカラムを用いたGPC分離技術を用いた液体クロマトグラフィーにより分析した。試験物質について測定した数平均分子量(Mn)および重量平均分子量(Mw)は、ポリスチレン標準を用いて実施した外部キャリブレーションに基づく。
メルト粘度は、ブルックフィールド粘度計モデルRVDV−1+を使用し、粘度標準油で較正したModel 106温度コントローラおよびサーモセルユニットを用いて測定した。10〜12gの接着剤を使い捨てアルミニウム粘度計管に秤量した。チューブを粘度計に挿入し、160℃で30分間平衡化させた。予熱スピンドルNo.27を接着剤に挿入し、160℃で30分間回転させた。測定された粘度範囲に従って回転速度を変えた。次いで、160℃での初期粘度V1を測定した。
サンプルを160℃(±1℃)の一定温度で6時間粘度計中で保持した。次いで160℃での粘度V2を測定し、6時間にわたる粘度の変化を次のように計算した:
%変化=[(V2−V1))/V1]×100
接着剤を160℃に予熱し、150μmの厚みのフィルムを予熱金属コーティングブロックを使用してMDF(中質繊維板)に適用した。時間はt=0に設定した。5〜10秒の間隔で、接着剤を紙ストリップに、接着剤に接触した紙の表面に指圧で塗布した。数分後、紙を取り除いた。オープンタイム制限は、接着剤による紙の適切な濡れの欠如に起因する紙の引裂がない場合に生じる。
TPUを160℃のオーブン中で30分間加熱し、フィルムを金属コーティングブロック(幅25mm×厚み0.25mm)で作製した。フィルムはその後室温で3日間、状態調節した。三日後、接着ストリップ(長さ10cm)と同じ寸法二紙ストリップの間に配置しました。木製ボード2分間180℃で予熱し、試料をボード上に180℃1分間置いた。ボードおよびサンプルをオーブンから取り出し、2キロローラーを試料に適用した。試料を室温で3日間放置し、紙の二枚は剥離して接着剤ストリップを露出した。接着剤ストリップが残っている紙で完全に覆われている場合((3回の測定の平均値)、100%接着が得られる。紙素材は、130gsmクロスグレインであり、コーティングし、および印刷した。
ヘキサンジオールおよびアジピン酸のコポリマー、Mn=1モル当たり4065g、Tm=55℃
〔半結晶性ポリエステルA2〕
ジエチレングリコールおよびテトラデカン酸のコポリマー、Mn=1モル当たり3740g、Tm=90℃
〔半結晶性ポリエステルA3〕
ヘキサンジオール、アジピン酸およびテレフタル酸のコポリマー、Mn=1モル当たり3815g、Tm=110℃
〔非結晶性ポリエステルB1〕
ジエチレングリコール、アジピン酸およびイソフタル酸のコポリマー、Mn=1モル当たり1910g、Tgは=−25℃
〔非結晶性ポリエステルB2〕
エチレングリコール、ネオペンチルグリコール、セバシン酸およびイソフタル酸のコポリマー、Mn=1モル当たり1875g、Tgは=−25℃
〔非結晶性ポリエステルB3〕
ジエチレングリコールおよび無水フタル酸のコポリマー、Mn=1モル当たり568g
1,4−ブタンジオール
1,12−ドデカンジオール
4,4’MDI
Irganox(登録商標)1010(抗酸化剤)
Claims (15)
- 熱可塑性ポリウレタンコポリマーを含むホットメルト接着剤組成物であって、
該熱可塑性ポリウレタンコポリマーは、
少なくとも1種のポリエステルポリオール;および
少なくとも1種のポリイソシアネート
の反応生成物を含み、
該ポリエステルポリオールのOH基に対するポリイソシアネートのNCO基のモル比は0.95:1未満であり、
熱可塑性ポリウレタンコポリマーの粘度は、160℃で1,000〜100,000mPa・sであり、
熱可塑性ポリウレタンコポリマーは熱的に安定性であり、および
熱安定性は、160℃で6時間後の熱可塑性ポリウレタンコポリマーの初期粘度と比較して±10%未満の粘度変化として定義される、ホットメルト接着剤組成物。 - 少なくとも1つのポリエステルポリオールは、
a)40〜150℃の融点(Tm)を有する少なくとも1種の半結晶性ポリエステルポリオール;および
b)少なくとも1種の非結晶性ポリエステルポリオール
を含む、請求項1に記載のホットメルト接着剤組成物。 - 少なくとも1種の非結晶性ポリエステルポリオールb)は、
c)750g/mol未満の数平均分子量(Mn)を有する非結晶性ポリエステルポリオール;および
d)少なくとも750g/molの数平均分子量(Mn)を有する非結晶性ポリエステルポリオール
を含む、請求項2に記載のホットメルト接着剤組成物。 - 少なくとも1つのポリエステルポリオールはオルトフタレートを含む、請求項1〜3のいずれかに記載のホットメルト接着剤組成物。
- 熱可塑性ポリウレタンコポリマーは、5,000〜40,000g/molの数平均分子量(Mn)を有する、請求項1〜4のいずれかに記載のホットメルト接着剤組成物。
- 組成物は、a)熱可塑性ポリウレタンコポリマーの総重量を基準にして5〜50重量%の化合物を含有する、請求項2〜5のいずれかに記載のホットメルト接着剤組成物。
- 組成物は、熱可塑性ポリウレタンコポリマーの総重量に基づいて5〜50重量%の化合物c)を含む、請求項3〜6のいずれかに記載のホットメルト接着剤組成物。
- 組成物は、熱可塑性ポリウレタンコポリマーの総重量を基準にして10〜60重量%の化合物d)を含む、請求項3〜7のいずれかに記載のホットメルト接着剤組成物。
- 熱可塑性コポリマーは、熱可塑性共重合体の総重量を基準にして
10〜30重量%の化合物a);
10〜40重量%の化合物c);
10〜40重量%の化合物d);および
10〜25重量%の少なくとも1種のポリイソシアネート
を含む、請求項3〜5のいずれかに記載のホットメルト接着剤組成物。 - ホットメルト接着剤組成物は、組成物の総重量に基づいて50〜99.9重量%の熱可塑性ポリウレタンコポリマーを含む、請求項1〜9のいずれかに記載のホットメルト接着剤組成物。
- ホットメルト接着剤組成物は、組成物の総重量に基づいて0.1〜50重量%の添加剤を含む、請求項1〜10のいずれかに記載のホットメルト接着剤組成物。
- ホットメルト接着剤組成物は、組成物の総重量に基づいて0.1〜50重量%の粘着付与剤、フィラー、可塑剤、および熱可塑性ポリウレタンコポリマーとは異なるさらなる熱可塑性ポリマー、またはそれらの組み合わせを含む、請求項1〜11のいずれかに記載のホットメルト接着剤組成物。
- ホットメルト接着剤組成物は、安定剤および接着促進剤またはそれらの組み合わせから選択される少なくとも1つの化合物を0.1〜10重量%含む、請求項1〜12のいずれかに記載のホットメルト接着剤組成物。
- 請求項1〜13のいずれかに記載のホットメルト接着剤組成物を基材へ適用する方法であって、
1)ホットメルト接着剤組成物を攪拌も剪断も伴わずに加熱容器中で溶融する工程、
2)工程1)の溶融ホットメルト接着剤組成物を歯車またはピストンポンプより加熱ホースを通してポンプ輸送する工程;および
3)ホットメルト接着剤組成物をノズル、ローラーまたはスプレーヘッドより基材上へ適用する工程
を含む、方法。 - 製本、木材接着、フラットラミネーション、フレキシブル包装、プロファイルラッピング、エッジバンディング、テキスタイルラミネーション、低圧成形および靴における請求項1〜13のいずれかに記載のホットメルト接着剤組成物の使用。
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2014
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- 2015-05-05 JP JP2017512108A patent/JP6582041B2/ja not_active Expired - Fee Related
- 2015-05-05 RU RU2016149392A patent/RU2686933C2/ru active
- 2015-05-05 KR KR1020167035179A patent/KR20170012327A/ko active Search and Examination
- 2015-05-05 WO PCT/EP2015/059828 patent/WO2015173072A1/en active Application Filing
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JP2023064035A (ja) * | 2021-10-25 | 2023-05-10 | 南亞塑膠工業股▲分▼有限公司 | ポリウレタン系ホットメルト |
JP7393467B2 (ja) | 2021-10-25 | 2023-12-06 | 南亞塑膠工業股▲分▼有限公司 | ポリウレタン系ホットメルト |
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WO2015173072A1 (en) | 2015-11-19 |
TWI676652B (zh) | 2019-11-11 |
EP2944661A1 (en) | 2015-11-18 |
CN106459360B (zh) | 2019-11-01 |
ES2755097T3 (es) | 2020-04-21 |
US20170058163A1 (en) | 2017-03-02 |
KR20170012327A (ko) | 2017-02-02 |
RU2686933C2 (ru) | 2019-05-06 |
RU2016149392A3 (ja) | 2018-12-10 |
TW201546175A (zh) | 2015-12-16 |
CN106459360A (zh) | 2017-02-22 |
EP2944661B1 (en) | 2019-09-18 |
RU2016149392A (ru) | 2018-06-20 |
JP6582041B2 (ja) | 2019-09-25 |
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