JP5721983B2 - 酸化防止剤組成物及びそれを含有する潤滑油組成物 - Google Patents
酸化防止剤組成物及びそれを含有する潤滑油組成物 Download PDFInfo
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Description
即ち、本発明は、 下記の一般式(1)で表される化合物(A)及び下記の一般式(4)で表されるフェノール系酸化防止剤(C)を含有することを特徴とする酸化防止剤組成物である:
(式中、R8は炭素数1〜6のアルキレン基を表し、R9は炭素数1〜20の炭化水素基を表す。)
<サンプル>
(A−1):2,4−ジスチレン化フェノール90質量%、2−モノスチレン化フェノー ル5質量%、2,4,6−トリスチレン化フェノール5質量%の混合物
(A−2):2−モノスチレン化フェノール
(A−3):2,4,6−トリスチレン化フェノール
(C−2):3−(4−ヒドロキシ−3,5−ジ―t−ブチルフェニル)プロピオン酸直 鎖オクタデシル
(D−2):ノニルフェノール
上記のサンプルを表1の配合に従って配合し、得られた試験サンプルを酸化防止性試験及び安定性試験に使用した。なお、サンプルの(D−1)及び(D−2)は、化合物(A)と比較するための溶剤である。また、試験サンプル1〜11はいずれも常温で透明液体であった。
JIS K−2514の方法に準拠して行った。具体的には、圧力計を備えた容量100mlの耐圧ボンベの中に、試料50g、水5g、及び触媒として直径1.6mmの銅線3mをコンパクトに丸めたものを入れ、密封した後ボンベ内の圧力が620kPaになるまで酸素を圧入する。このボンベを150℃の恒温槽内で、30℃の角度を保持したまま毎分100回転で回転させる。最初、ボンベ内の圧力は温度がかかることで増加していくが、酸化劣化が始まると酸素を吸収してボンベ内の圧力は低下する。圧力を経時で測定し、圧力が最高になったときから175kPaに低下するまでの時間を求め、これを酸化劣化の誘導期間とした。誘導期間が長いほど酸化防止性能が良好な試料である。なお、試料は上記配合表に従って作成した試験サンプルを下記の基油に0.5質量%になるように添加したものを用いた。また、比較のために使用したサンプル単体の試験も行った。サンプル単体の試験も、サンプルを下記の基油1または2に0.5質量%になるように添加したものを試料として用いた。
基油2:動粘度4.0mm2/秒(100℃)、18.4mm2/秒(40℃)、粘度指 数=119のポリαオレフィン
Claims (4)
- 化合物(A)と、フェノール系酸化防止剤(C)との割合が、30/70〜99/1(重量比)であることを特徴とする請求項1に記載の酸化防止剤組成物。
- 請求項1または2に記載の酸化防止剤組成物と、基油とを含有することを特徴とする潤滑油組成物。
- 酸化防止剤組成物の配合量が潤滑油組成物全量に対して0.01〜10質量%であることを特徴とする請求項3に記載の潤滑油組成物。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010205547A JP5721983B2 (ja) | 2010-09-14 | 2010-09-14 | 酸化防止剤組成物及びそれを含有する潤滑油組成物 |
US13/822,494 US9382498B2 (en) | 2010-09-14 | 2011-08-26 | Antioxidant composition and lubricating oil composition containing same |
CN201180044250.XA CN103097502B (zh) | 2010-09-14 | 2011-08-26 | 抗氧化剂组合物和含有其的润滑油组合物 |
EP11824962.2A EP2617802B1 (en) | 2010-09-14 | 2011-08-26 | Antioxidant composition, and lubricating oil composition containing same |
KR1020137005638A KR101810276B1 (ko) | 2010-09-14 | 2011-08-26 | 산화방지제 조성물 및 그것을 함유하는 윤활유 조성물 |
PCT/JP2011/069253 WO2012035954A1 (ja) | 2010-09-14 | 2011-08-26 | 酸化防止剤組成物及びそれを含有する潤滑油組成物 |
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EP (1) | EP2617802B1 (ja) |
JP (1) | JP5721983B2 (ja) |
KR (1) | KR101810276B1 (ja) |
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JP6632969B2 (ja) * | 2013-04-22 | 2020-01-22 | エトクス ケミカルズ リミテッド ライアビリティ カンパニー | 衝撃強さ及び柔軟性の改善のための樹脂組成物への添加剤 |
JP6085219B2 (ja) * | 2013-04-26 | 2017-02-22 | 昭和シェル石油株式会社 | 真空ポンプ油 |
JP6744708B2 (ja) * | 2015-01-21 | 2020-08-19 | セイコーインスツル株式会社 | 転がり軸受用グリース、転がり軸受、転がり軸受装置及び情報記録再生装置 |
WO2016143807A1 (ja) * | 2015-03-09 | 2016-09-15 | Jxエネルギー株式会社 | グリース組成物 |
KR101659318B1 (ko) * | 2015-11-24 | 2016-09-23 | 주식회사 루브캠코리아 | 윤활 그리스 조성물 및 이의 제조 방법 |
JP6590442B2 (ja) | 2016-02-25 | 2019-10-16 | 出光興産株式会社 | 潤滑油組成物 |
KR20190022750A (ko) | 2016-06-29 | 2019-03-06 | 가부시키가이샤 아데카 | 내연 기관용 윤활유 조성물 |
CN109065210A (zh) * | 2018-07-24 | 2018-12-21 | 晶锋集团股份有限公司 | 一种强效导电抗氧化的电缆及其制备方法 |
CN109280499A (zh) * | 2018-09-10 | 2019-01-29 | 天长市永泰密封材料有限公司 | 一种强效抗氧化的环氧粘合剂及其制备方法 |
KR102534592B1 (ko) * | 2020-10-14 | 2023-05-22 | 주식회사 지러스트 | 방청 볼트캡 |
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JP2002348586A (ja) | 2001-05-23 | 2002-12-04 | Citizen Watch Co Ltd | 潤滑油組成物およびそれを用いた精密部品および軸受け |
JP4078345B2 (ja) * | 2004-10-19 | 2008-04-23 | 新日本石油株式会社 | 酸化防止剤組成物及びそれを用いた潤滑油組成物 |
US20060122073A1 (en) | 2004-12-08 | 2006-06-08 | Chip Hewette | Oxidation stable gear oil compositions |
US7704931B2 (en) * | 2004-12-10 | 2010-04-27 | Chemtura Corporation | Lubricant compositions stabilized with multiple antioxidants |
JP5078116B2 (ja) * | 2006-10-20 | 2012-11-21 | Jx日鉱日石エネルギー株式会社 | 長寿命省燃費型エンジン油組成物 |
US20090011961A1 (en) * | 2007-07-06 | 2009-01-08 | Jun Dong | Lubricant compositions stabilized with styrenated phenolic antioxidant |
US7902280B2 (en) * | 2007-02-26 | 2011-03-08 | Chemtura Corporation | Liquid styrenated phenolic compositions and processes for forming same |
JP5248137B2 (ja) * | 2008-02-21 | 2013-07-31 | 株式会社Adeka | 潤滑油用酸化防止剤組成物及びそれを含有する潤滑油組成物 |
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US20130184190A1 (en) | 2013-07-18 |
CN103097502A (zh) | 2013-05-08 |
KR20130108544A (ko) | 2013-10-04 |
US9382498B2 (en) | 2016-07-05 |
EP2617802A1 (en) | 2013-07-24 |
EP2617802B1 (en) | 2019-09-18 |
WO2012035954A1 (ja) | 2012-03-22 |
JP2012062348A (ja) | 2012-03-29 |
EP2617802A4 (en) | 2015-04-22 |
KR101810276B1 (ko) | 2017-12-19 |
CN103097502B (zh) | 2015-07-22 |
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