JP2012180527A - ホウ酸エステルの使用 - Google Patents
ホウ酸エステルの使用 Download PDFInfo
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Abstract
【解決手段】冷媒(refrigerant)と共に用いられた潤滑剤用の脱水剤としての式(III)のホウ酸エステルの使用。[RY−X−(RaO)r(RbO)s(RcO)t−O−]3−B(III)、ここでX=OまたはS、RYはC1−C10のアルキル、または複素環を含むC3〜C15の置換基であって、前記複素環におけるヘテロ原子は酸素及び/または硫黄であり、Raは、C2アルキレン基、Rbは、C3アルキレン基、Rcは、C4アルキレン基、r、s、tはそれぞれ独立な0または50以下の整数であり、r+s+t=3〜50(両端の数値を含めて)
【選択図】なし
Description
R1[(OR2)mOR3]n
ここで、R1が炭素数1〜10のアルキル基であり、炭素数1〜10のアシル基、または2〜6価の脂肪族炭化水素基であり、
R2が炭素数2〜4のアルキレン基であり、
R3が、炭素数1〜10のアルキル基、または炭素数1〜10のアシル基であり、
nが1〜6の整数であり、かつ
mが1〜80の整数である、
に代表される。
RX(RaO)X(RbO)y(RcO)zRd (I)
ここで
X=OまたはS、
Rは、複素環を含むC3〜C15の置換基で、前記環におけるヘテロ原子が酸素及び/または硫黄であり、
RaはC2アルキレン基、
RbはC3アルキレン基、
RcはC4アルキレン基、
Rdは、Rと同じか、または、H、C1〜C20アルキルまたはC1〜C20アシル、
x,y,zは、互いに独立で0または100以下の整数値であって、かつx+y+z=4〜100である。
Xは酸素であることが好ましい。
[−C(Re)(Rf)−C(Rg)(Rh)−] (II)
regulators)、反応性水除去剤(reactive water-eliminating
additives)、消泡剤及び乳化破壊剤が含まれる。
[RY−X−(RaO)r(RbO)s(RcO)t−O−]3−B (III)
ここでX=OまたはS
RYはC1−C10のアルキル、または複素環を含むC3〜C15の置換基であり、前記複素環におけるヘテロ原子が酸素及び/または硫黄であり、
RaはC2アルキレン基、
RbはC3アルキレン基、
RcはC4アルキレン基、
r、s、tはそれぞれ独立な0または50以下の整数であり、且つ
r+s+t=3〜50(両端の数値を含めて)である。
2−ヒドロキシメチルテトラヒドロフランを開始剤(RXH)として用いた。この化合物を、下記の反応条件下でプロピレンオキサイドと反応させた。中間体及び最終生成物は、本実施例では、上記式Iの定義の範囲内で形成された。しかし、中間体が約9のy値を有するのに対して、最終生成物のy値は約18であった。中間体と最終生成物とのxとyの値は、それぞれ0であった。
本実施例において、実施例1の最終生成物をイソブチレンオキサイドと反応させた。結果生成物は17のy値と1のz値を有することがわかった。
ヒドロキシル価(mgKOH/g) 12.8
40℃における粘度(cSt) 57.6
水 (%) 0.02
PH(IPS/水) 6.9
色(Pt/Co) 50
外観 クリヤー
本実施例において、実施例1の最終生成物を、Rdがメチルであるようにメチル基でキャップした。
3000gの実施例1の最終生成物を、756g(1.25当量)のナトリウムメトキシドと真空中で90℃において4時間反応させた。メチルクロライド282g(2当量)が、次いで、その混合物に90℃において4時間加えられた。生成物は、塩酸水溶液でpH5に調整され、塩を除去するために水で洗浄された。生成物は分離され、マンガンシリケートで処理され、ろ過されて乾燥された。結果としてキャップされた物質は、5.3の残留ヒドロキシ価を有し(90%がキャップされた)、40℃で42.9の粘度を有し、100℃で9.2の粘度を有し、204の粘度指数を与えている。
本実施例において、上記式IIIの定義の範囲内であるホウ酸エステルを合成した。
本実施例において、実施例3において製造された潤滑油を、本発明の1つの実施態様に関する組成物を製造するために、実施例4のホウ酸エステルと混合した。
10グラムの実施例4の生成物を100gの実施例3の生成物と混合した。生じた混合物は、分析され、0.0重量%の水分含有量を有することがわかった。混合されなかった潤滑油(実施例3)の水分含有量は、0.1重量%と計測された。
さらに、異なる複素環の開始剤を用いた異なる分子量のポリアルキレングリコールを、実施例1の方法にしたがって調製した。
に示す。
前に記載したように、良好な低温分離特性は、現代のコンプレッサーにおいて用いられる潤滑剤にとって重要な必要条件である。実施例3の生成物を、比較例14の生成物と比較した。比較例14は、出光興産株式会社の製品であり、EP377122Aの実施例8の生成物と化学的性質が同じ若しくは非常に類似している。これは、粘度、上曇点及び鎖構造の直線性について、実施例3に対して、最も類似している。この試験において、潤滑油とフルオロカーボン冷媒(refrigerant)とを、管内に封印し、冷却した。どのような分離の温度も観測した。高温分離もまた管を熱して観測することで評価できる。低温分離の結果を下記表2に示す。これらは、実施例3の生成物は、−60℃である試験をした最低温においてでさえも分離しなかった。しかしながら、比較例14は、比べて非常に高い温度で分離した。
Claims (6)
- 冷媒と共に用いられる潤滑油用脱水剤としての式(III)のホウ酸エステルの使用。
[RY−X−(RaO)r(RbO)s(RcO)t−O−]3−B (III)
ここでX=OまたはS、
RYはC1−C10のアルキル、または複素環を含むC3〜C15の置換基であって、前記複素環におけるヘテロ原子は酸素及び/または硫黄であり
Raは、C2アルキレン基
Rbは、C3アルキレン基
Rcは、C4アルキレン基
r、s、tはそれぞれ独立な0または50以下の整数であり、
r+s+t=3〜50(両端の数値を含めて)。 - RYがメチル、プロピル、ブチル、ペンチルまたはヘキシルである請求項1に記載のホウ酸エステルの使用。
- ホウ酸エステルがオルトホウ酸とメタノールのプロポキシエステルとの反応生成物である請求項1または2に記載のホウ酸エステルの使用。
- 式(III)のホウ酸エステルが、潤滑油にエステルのみを足し合わせたものを基準として1〜25重量%の量で存在する請求項1乃至3のいずれかに記載のホウ酸エステルの使用。
- 前記潤滑油が式(I)の潤滑油である請求項1記載のホウ酸エステルの使用。
RX(RaO)x(RbO)y(RcO)zRd (I)
ここで
X=OまたはS
Rは、テトラヒドロフラン、メチルテトラヒドロフラン、テトラヒドロチオフェン、メチルテトラヒドロチオフェン、フルフリル、またはテトラヒドロフルフリルから誘導されたC4〜C6複素環部分を含み、それがXに直接または炭化水素リンケージを介して接続され、
RaはC2アルキレン基、
RbはC3アルキレン基、
RcはC4アルキレン基、
Rdは、Rと同じか、または、H、C1〜C20アルキル若しくはC1〜C20アシルであり、
x,y,zは、互いに独立で0または100以下の整数値であって、かつx+y+z=4〜100である。 - 式(III)のホウ酸エステルからなる潤滑油用脱水剤。
[RY−X−(RaO)r(RbO)s(RcO)t−O−]3−B (III)
ここでX=OまたはS、
RYはC1−C10のアルキル、または複素環を含むC3〜C15の置換基であって、前記複素環におけるヘテロ原子は酸素及び/または硫黄であり
Raは、C2アルキレン基
Rbは、C3アルキレン基
Rcは、C4アルキレン基
r、s、tはそれぞれ独立な0または50以下の整数であり、
r+s+t=3〜50(両端の数値を含めて)。
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US6962665B2 (en) | 2000-12-08 | 2005-11-08 | E. I. Du Pont De Nemours And Company | Refrigerant compositions containing a compatibilizer |
US6991744B2 (en) | 2000-12-08 | 2006-01-31 | E. I. Du Pont De Nemours And Company | Refrigerant compositions containing a compatibilizer |
EP1454667A1 (en) * | 2003-03-03 | 2004-09-08 | Laporte Performance Chemicals UK Limited | Foam control agent |
CA2541970A1 (en) | 2003-10-09 | 2005-06-09 | E.I. Du Pont De Nemours And Company | Gene silencing by using micro-rna molecules |
MX221601B (en) † | 2004-05-14 | 2004-07-22 | Basf Ag | Functional fluids containing alkylene oxide copolymers having low pulmonary toxicity |
US20070004605A1 (en) * | 2005-06-27 | 2007-01-04 | Kaoru Matsumura | Lubricants for refrigeration systems |
US8460571B2 (en) * | 2007-06-12 | 2013-06-11 | Idemitsu Kosan Co., Ltd. | Lubricant composition for refrigerator and compressor using the same |
AR070686A1 (es) | 2008-01-16 | 2010-04-28 | Shell Int Research | Un metodo para preparar una composicion de lubricante |
SG10201701993TA (en) * | 2013-03-12 | 2017-05-30 | Lubrizol Corp | Lubricating Composition Containing Lewis Acid Reaction Product |
JP6159373B2 (ja) * | 2015-10-07 | 2017-07-05 | 出光興産株式会社 | 冷凍機油、冷凍機用組成物、冷凍機及び冷凍機油の選定方法 |
EP3371287B1 (en) * | 2015-11-06 | 2020-03-25 | Shrieve Chemical Products, Inc. | Oil miscible polyalkylene glycols and uses thereof |
CN109970961B (zh) * | 2017-12-22 | 2021-07-23 | 万华化学集团股份有限公司 | 一种端烯基封端不饱和聚醚的制备方法 |
WO2019173172A1 (en) | 2018-03-06 | 2019-09-12 | Shrieve Chemical Products, Inc. | Lubricant and refrigerant compositions comprising polyalkylene glycols and uses thereof |
FR3092585B1 (fr) * | 2019-02-05 | 2021-02-12 | Total Marketing Services | Composition lubrifiante pour compresseur |
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ATE281506T1 (de) | 2004-11-15 |
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AU2001226966A1 (en) | 2001-08-14 |
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WO2001057164A1 (en) | 2001-08-09 |
KR100743773B1 (ko) | 2007-07-30 |
TWI236499B (en) | 2005-07-21 |
JP5015400B2 (ja) | 2012-08-29 |
US6903055B2 (en) | 2005-06-07 |
BR0107961B1 (pt) | 2011-09-06 |
US20030153470A1 (en) | 2003-08-14 |
GB0002260D0 (en) | 2000-03-22 |
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WO2001057164A8 (en) | 2001-09-13 |
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