JP6973474B2 - 変性炭化水素樹脂 - Google Patents
変性炭化水素樹脂 Download PDFInfo
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- JP6973474B2 JP6973474B2 JP2019509208A JP2019509208A JP6973474B2 JP 6973474 B2 JP6973474 B2 JP 6973474B2 JP 2019509208 A JP2019509208 A JP 2019509208A JP 2019509208 A JP2019509208 A JP 2019509208A JP 6973474 B2 JP6973474 B2 JP 6973474B2
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- 125000004018 acid anhydride group Chemical group 0.000 claims description 6
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- 229940105125 zinc myristate Drugs 0.000 description 1
- 229960001296 zinc oxide Drugs 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- 229940057977 zinc stearate Drugs 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- GPYYEEJOMCKTPR-UHFFFAOYSA-L zinc;dodecanoate Chemical compound [Zn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O GPYYEEJOMCKTPR-UHFFFAOYSA-L 0.000 description 1
- GBFLQPIIIRJQLU-UHFFFAOYSA-L zinc;tetradecanoate Chemical compound [Zn+2].CCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCC([O-])=O GBFLQPIIIRJQLU-UHFFFAOYSA-L 0.000 description 1
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 1
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 description 1
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- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
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- C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F236/10—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl-aromatic monomers
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- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
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- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
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- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F236/045—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated conjugated hydrocarbons other than butadiene or isoprene
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Description
変性前樹脂は、酸変性前であって水添前の原料樹脂であり、1,3−ペンタジエン単量体単位20質量%〜70質量%、炭素数4〜6の脂環式モノオレフィン単量体単位10質量%〜40質量%、炭素数4〜8の非環式モノオレフィン単量体単位5質量%〜30質量%、脂環式ジオレフィン単量体単位0質量%〜1質量%、及び芳香族モノオレフィン単量体単位0質量%〜40質量%を含むものである。
本発明の変性炭化水素樹脂は、上記変性前樹脂を水添した樹脂を、さらに酸変性した変性炭化水素樹脂である。
本発明の変性炭化水素樹脂には、例えば抗酸化剤、香料、吸着剤を配合して用いることができる。変性炭化水素樹脂に、抗酸化剤、香料、吸着剤を配合することにより、臭気をさらに低減することができるからである。
抗酸化剤としては、配合することで変性炭化水素樹脂に由来する臭気を低減可能なものであればよく、公知の抗酸化剤を使用できる。なかでも、抗酸化剤は、2,2,6,6−テトラアルキル−4−ピペリジル基を有する化合物であることが好ましい。抗酸化剤として上述の化合物を配合することで、臭気を低く抑えることができるからである。
(i)ビス(2,2,6,6−テトラメチル−4−ピペリジル)セバケート〔チヌビン770〕
(ii)ポリ〔{6−(1,1,3,3−テトラメチルブチル)アミノ−1,3,5−トリアジン−2,4−ジイル}{(2,2,6,6−テトラメチル−4−ピペリジル)イミノ}ヘキサメチレン{(2,2,6,6−テトラメチル−4−ピペリジル)イミノ}〕〔チマソルブ944〕
(iii)ビス(1,2,2,6,6−ペンタメチル−4−ピペリジル)セバケート〔チヌビン765〕
(iv)2−(3,5−ジ−t−ブチル−4−ヒドロキシベンジル)−2−n−ブチルマロン酸ビス(1,2,2,6,6−ペンタメチル−4−ピペリジル)〔チヌビン144〕
(v)コハク酸ジメチル−1−(2−ヒドロキシエチル)−4−ヒドロキシ−2,2,6,6−テトラメチル−4−ピペリジン重縮合物〔チヌビン622〕
(vi)N,N’−ビス(3−アミノプロピル)エチレンジアミン−2、4−ビス〔N−ブチル−N−(1,2,2,6,6−ペンタメチル−4−ピペリジル)アミノ〕−6−クロロ−1,3,5−トリアジン縮合物〔チマソルブ119〕
(vii)ビス(1−オクチルオキシ−2,2,6,6−テトラメチル−4−ピペリジル)セバケート〔チヌビン123〕。
香料としては、配合することで変性炭化水素樹脂に由来する臭気を低減可能なものであればよく、様々な香料を用いることができる。なかでも、香料は、常圧下の沸点が200℃以上である単体香料もしくはそれら単体香料の二種以上からなる調合香料であることが好ましい。香料として上述の香料を配合することで、変性炭化水素樹脂に由来する臭気をマスキングすることができるからである。
吸着剤としては、配合することで変性炭化水素樹脂に由来する臭気を低減可能なものであればよい。このような吸着剤としては、上記「1.炭化水素樹脂」の項に記載の吸着剤と同様とすることができる。
本発明の変性炭化水素樹脂は、低臭気で、色調に優れ、耐熱色相安定性に優れるものであることから、その特性を活かして、従来の変性炭化水素樹脂を適用しうる各種の用途に適用することができる。例えば、粘着付与剤、バインダー樹脂、相溶化剤、粘接着剤改質剤、路面区画線表示材料改質剤、道路舗装材料改質剤、ゴム成型物改質剤、インキ改質剤、塗料改質剤、樹脂改質剤などに適用することができる。なかでも、粘着付与剤や路面区画線表示材料改質剤としての使用が好適である。
試料となる変性炭化水素樹脂について、ゲル・パーミエーション・クロマトグラフィー分析し、標準ポリスチレン換算値の重量平均分子量(Mw)およびZ平均分子量(Mz)を求め、分子量分布はMz/Mwの比で示した。なお、ゲル・パーミエーション・クロマトグラフィー分析は、測定装置として、東ソー社製「HLC−8320GPC」を使用し、カラムは東ソー社製「TSKgel SuperMultiporeHZ」を3本連結したものを用い、テトラヒドロフランを溶媒として、40℃、1.0mL/minの流量で測定した。
試料となる変性炭化水素樹脂について、50質量%トルエン溶液を調製し、当該溶液のガードナー色数をJIS K 0071−2に従い測定した。値が小さいものほど、色調に優れる。
試料となる変性炭化水素樹脂を、200℃のオーブン中に3時間静置し、その後放冷した後に、ガードナー色数をJIS K 0071−2に従い測定した。値が小さいものほど、耐熱色相安定性に優れる。
試料となる変性炭化水素樹脂について、JIS K 6863に従い測定した。
試料となる変性前樹脂および変性炭化水素樹脂について、1H−NMRスペクトル測定により各々のオレフィン量を求め、変性前後のオレフィン量の差に基づいてオレフィン水添率(%)を算出した。なお、1H−NMRスペクトル測定では、溶媒に重クロロホルムを用い、NMR測定装置としてJMN−AL seriesAL400(JEOL社製)を用いた。
試料となる変性炭化水素樹脂について、JIS K 0070に従って測定した。
試料となる変性炭化水素樹脂をトルエンに溶解させた後、水でマレイン酸として抽出して、水相をイオンクロマトグラフィで測定した。
試料である変性炭化水素樹脂についての官能試験は、臭気対策研究協会発行の臭気の嗅覚測定法における臭気強度表示法に従って行った。具体的には、まず、1粒の大きさを約10mm×5mm×5mmとした変性炭化水素樹脂10gを120mLの耐熱性容器に入れて、アルミ箔でフタをした。そして、この変性炭化水素樹脂の入った耐熱性容器を、オーブンに入れて、温度160℃、30分間の条件で加熱し、加熱後の臭気の確認を行った。臭気の確認は、石油樹脂の臭気に慣れていない(すなわち、普段の生活において、石油樹脂の臭気に触れることのない)6人のパネルにより行った。本試験においては、嗅覚疲労を防ぐため、6人のパネルを3人ずつの2班に分けて、1班ずつ臭気を嗅ぐという方法を採用した。また、臭気を嗅ぐサンプルの順番は、無作為とした。
0:無臭
1:やっと認知できる臭い(検知閾値濃度)
2:何の臭いであるか判る弱い臭い(認知閾値濃度)
3:楽に感知できる臭い
4:強い臭い
5:強烈な臭い
なお、官能試験の結果は、6人のパネルの判定値のうち、最大値と最小値をそれぞれ除き、残りの4人の判定値を平均することにより求めた。官能試験の値は、小さいほうが好ましい。
重合反応器にシクロペンタン35.3部及びシクロペンテン25.0部の混合物を重合反応器に仕込み、60℃に昇温した後、塩化アルミニウム0.9部を添加した(混合物M1)。引き続き、1,3−ペンタジエン35.3部、イソブチレン6.9部、スチレン29.2部、C4−C6不飽和炭化水素0.5部、及びC4−C6飽和炭化水素8.4部からなる混合物a1と、t−ブチルクロライド0.6部とを、それぞれ、別のラインを通して、60分間に亘り温度(60℃)を維持して、上記混合物M1を含む重合反応器に連続的に添加しながら重合を行った。その後、水酸化ナトリウム水溶液を重合反応器に添加して、重合反応を停止した。なお、重合反応時の重合反応器中の成分の種類及び量を表1にまとめて示した。重合停止により生成した沈殿物をろ過により除去し、変性前樹脂および未反応単量体等を含む重合体溶液を得た。
重合反応器に添加する成分の種類および量、重合温度、ならびに水添条件を下記表1に示すとおりにそれぞれ変更したこと以外は、実施例1と同様にして、実施例2〜4及び比較例1〜5の変性炭化水素樹脂をそれぞれ得た。なお、実施例1に記載のないジイソブチレン、ジシクロペンタジエン、ビニルトルエン、インデン、α−メチルスチレン、β−メチルスチレン、C9飽和炭化水素、トルエン、キシレン、三フッ化ホウ素、及びベンジルクロライドは、1,3−ペンタジエン等と共にt−ブチルクロライドと混合し、重合に供した。
Claims (3)
- 1,3−ペンタジエン単量体単位20質量%〜70質量%、
炭素数4〜6の脂環式モノオレフィン単量体単位10質量%〜40質量%、
炭素数4〜8の非環式モノオレフィン単量体単位5質量%〜30質量%、
脂環式ジオレフィン単量体単位0質量%〜1質量%、及び
芳香族モノオレフィン単量体単位0質量%〜40質量%を含む炭化水素樹脂を水添してなる樹脂に、不飽和カルボン酸または不飽和ジカルボン酸無水物に由来するカルボキシル基または酸無水物基が導入されてなるものであり、
オレフィンの水添率が10%〜40%の範囲内であり、
未反応の前記不飽和カルボン酸および前記不飽和ジカルボン酸無水物の含有量が500ppm以下である、変性炭化水素樹脂。 - 重量平均分子量(Mw)が1,000〜4,000の範囲内であり、
Z平均分子量(Mz)が1,500〜10,000の範囲内であり、
重量平均分子量に対するZ平均分子量の比(Mz/Mw)が1.5〜2.5の範囲内であり、
50質量%トルエン溶液のガードナー色数が5以下であり、
軟化点が30℃以上であり、かつ
酸価が0.5〜20KOHmg/gである、請求項1に記載の変性炭化水素樹脂。 - 前記不飽和ジカルボン酸無水物が無水マレイン酸である、請求項1または請求項2に記載の変性炭化水素樹脂。
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EP3604356A1 (en) | 2020-02-05 |
TW201837064A (zh) | 2018-10-16 |
JPWO2018180462A1 (ja) | 2020-02-06 |
EP3604356A4 (en) | 2020-11-11 |
EP3604356B1 (en) | 2023-08-02 |
TWI743332B (zh) | 2021-10-21 |
WO2018180462A1 (ja) | 2018-10-04 |
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