JP7046161B2 - 二成分溶剤系接着剤組成物およびそれらを作製する方法 - Google Patents
二成分溶剤系接着剤組成物およびそれらを作製する方法 Download PDFInfo
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Description
本出願に係る発明のより具体的な例として以下のものが挙げられる。
[1] 芳香族ポリイソシアネート成分と、少なくとも1つのポリエステルポリオールと、2つ以上のOH基および水素架橋基を有するポリオールとを含むポリオール成分と、を含む、二成分ポリウレタン接着剤組成物であって、前記芳香族ポリイソシアネート成分が、少なくとも2.8かつ5を超えない平均NCO官能価を有し、前記ポリエステルポリオールが、少なくとも1.8かつ3を超えないOH官能価、および2~45mgのKOH/gのOH数を有し、前記2つ以上のOH基および水素架橋基を有するポリオールが、少なくとも50mgのKOH/g、かつ200mgのKOH/gを超えない酸価を有し、OH官能価が、少なくとも1.8かつ3を超えない、二成分ポリウレタン接着剤組成物。
[2] 前記芳香族ポリイソシアネート成分が、芳香族ポリイソシアネート付加物または芳香族ポリイソシアネート三量体である、[1]に記載の二成分ポリウレタン接着剤組成物。
[3] 前記芳香族ポリイソシアネート成分が、少なくとも7重量%かつ19重量%を超えないNCO%を有する、[1]に記載の二成分ポリウレタン接着剤組成物。
[4] 前記ポリエステルポリオールが、前記ポリオール成分中の重量に基づいて少なくとも78重量%から99重量%未満の量である、[1]に記載の二成分ポリウレタン接着剤組成物。
[5] 前記水素架橋基が、O=C-O - 、O=C-C-O - 、およびO=C-C=C-O - 、およびそれらの回内形態(pronated form)から選択される、[1]に記載の二成分ポリウレタン接着剤組成物。
[6] 前記2つ以上のOH基および水素架橋基を有するポリオールが、前記ポリオール成分中の重量に基づいて少なくとも1重量%から22重量%未満の量である、[1]に記載の二成分ポリウレタン接着剤組成物。
[7] 前記ポリオール成分対前記ポリイソシアネート成分の重量比が、100:15~100:40である、[1]に記載の二成分ポリウレタン接着剤組成物。
[8] [1]に記載のポリイソシアネート成分と、ポリオール成分とを含む、硬化性混合物。
[9] [8]に記載の硬化性混合物を含む、ラミネート。
ポリイソシアネート成分は、芳香族ポリイソシアネート付加物または三量体である。
二成分ポリウレタン接着剤組成物は、少なくとも1つのポリエステルポリオールと、2つ以上のOH基および水素架橋基を有するポリオールとを含む、ポリオール成分をさらに含む。
実施例を調製するために使用される原料は、以下に記載されている。
DESMODUR(商標)L75は、NCO官能価が3(f=3)の芳香族ポリイソシアネートであり、溶媒としてEAを75%の固形分を有し、Covestro companyから市販されている。
ADCOTE(商標)563EAは、OHが26mgのKOH/gであるポリエステルポリオールであり、溶媒としてEAを82%の固形分を有し、Dow Chemical companyから市販されている。
DMPA(商標)HA-0135は、2つ以上のOH基および水素架橋基を有するポリオールであり、115mgのKOH/gのOH数を有し、100%の固形分を有し、GEO Speciality Chemicalsから市販されている。
実施例の接着剤組成物から調製されたラミネートを、結合強度試験(BS)に供する。Instron Corporationから入手可能な5940 Series Single Column Table Top Systemを使用して、250mm/分のクロスヘッド速度下でのT-剥離試験のためにラミネートを15mm幅のストリップに切断する。試験中、各ストリップの尾部を手でわずかに引っ張って、尾部が剥離方向に対して90°の角度を保つようにする。3つのストリップを各サンプルについて試験し、平均値を計算する。結果はN/15mm単位である。比較的高い値は、より良好な結合強度を示す。
Claims (8)
- 芳香族ポリイソシアネート成分と、
少なくとも1つのポリエステルポリオールと、2つ以上のOH基および水素架橋基を有するポリオールとを含むポリオール成分と、
を含む、二成分ポリウレタン接着剤組成物であって、
前記芳香族ポリイソシアネート成分が、少なくとも2.8かつ5を超えない平均NCO官能価を有し、前記芳香族ポリイソシアネート成分が、トルエンジイソシアネートの付加物または三量体であり、前記ポリエステルポリオールが、少なくとも1.8かつ3を超えないOH官能価、および2~45mgのKOH/gのOH数を有し、前記2つ以上のOH基および水素架橋基を有するポリオールが、少なくとも50mgのKOH/g、かつ200mgのKOH/gを超えない酸価を有し、OH官能価が、少なくとも1.8かつ3を超えない、二成分ポリウレタン接着剤組成物。 - 前記芳香族ポリイソシアネート成分が、少なくとも7重量%かつ19重量%を超えないNCO%を有する、請求項1に記載の二成分ポリウレタン接着剤組成物。
- 前記ポリエステルポリオールが、前記ポリオール成分中の重量に基づいて少なくとも78重量%から99重量%未満の量である、請求項1または2に記載の二成分ポリウレタン接着剤組成物。
- 前記水素架橋基が、O=C-O-、O=C-C-O-、およびO=C-C=C-O-、およびそれらの回内形態(pronated form)から選択される、請求項1~3のいずれかに記載の二成分ポリウレタン接着剤組成物。
- 前記2つ以上のOH基および水素架橋基を有するポリオールが、前記ポリオール成分中の重量に基づいて少なくとも1重量%から22重量%未満の量である、請求項1~4のいずれかに記載の二成分ポリウレタン接着剤組成物。
- 前記ポリオール成分対前記ポリイソシアネート成分の重量比が、100:15~100:40である、請求項1~5のいずれかに記載の二成分ポリウレタン接着剤組成物。
- 請求項1に記載のポリイソシアネート成分と、ポリオール成分とを含む、硬化性混合物。
- 請求項7に記載の硬化性混合物を含む、ラミネート。
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WO2007094341A1 (ja) | 2006-02-17 | 2007-08-23 | Mitsui Chemicals Polyurethanes, Inc. | ラミネート用接着剤 |
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