JPH05247484A - １，１，１，２−テトラフルオロエタン冷媒用潤滑油 - Google Patents

１，１，１，２−テトラフルオロエタン冷媒用潤滑油

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Publication number
JPH05247484A
JPH05247484A JP4345705A JP34570592A JPH05247484A JP H05247484 A JPH05247484 A JP H05247484A JP 4345705 A JP4345705 A JP 4345705A JP 34570592 A JP34570592 A JP 34570592A JP H05247484 A JPH05247484 A JP H05247484A
Authority
JP
Japan
Prior art keywords
lubricating oil
refrigerant
polyglycol
monoalkyl ether
tetrafluoroethane
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
Application number
JP4345705A
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English (en)
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JPH07103388B2 (ja
Inventor
Masato Kaneko
正人 金子
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Idemitsu Kosan Co Ltd
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Idemitsu Kosan Co Ltd
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Application filed by Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Publication of JPH05247484A publication Critical patent/JPH05247484A/ja
Publication of JPH07103388B2 publication Critical patent/JPH07103388B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
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    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
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    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
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    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
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    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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    • C10M2211/02—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only
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Abstract

(57)【要約】 【目的】 １，１，１，２−テトラフルオロエタンを冷
媒とする冷凍機等の潤滑剤として好適な潤滑油を開発す
ること。 【構成】 オキシエチレン単位およびオキシプロピレン
単位を有するポリグリコールのモノアルキルエーテル
（例えばモノブチルエーテル）を主成分とする１，１，
１，２−テトラフルオロエタン冷媒用潤滑油である。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は１，１，１，２−テトラ
フルオロエタン冷媒用潤滑油に関し、詳しく特定のポリ
グリコールのモノアルキルエーテルを主成分とし、１，
１，１，２−テトラフルオロエタンを冷媒とする冷凍機
等の潤滑剤として好適な潤滑油に関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】従来か
ら、ポリグリコール系の化合物は、冷凍機等の潤滑油と
して利用されているが、冷媒、特に１，１，１，２−テ
トラフルオロエタン等の水素含有フロン冷媒との相溶性
が不充分である。また、比較的低粘度であるため開放型
冷凍機等では蒸発損失が多く、特に高速多気筒冷凍機に
おいては、油消費量が著しく多く実用性に欠けるもので
あった。そこで、本発明者は上記従来のポリグリコール
系化合物の欠点を解消し、冷凍機油等として好適な性状
を有するポリグリコール系化合物を開発すべく鋭意研究
を重ねた。
【０００３】
【課題を解決するための手段】その結果、オキシエチレ
ン単位およびオキシプロピレン単位を有するポリグリコ
ールのモノアルキルエーテルが、目的を達成できること
を見出した。本発明はこのような知見に基いて完成した
ものである。すなわち、本発明はオキシエチレン単位お
よびオキシプロピレン単位を有するポリグリコールのモ
ノアルキルエーテル（但し、アルキル基の炭素数は１〜
１０である）を主成分とする１，１，１，２−テトラフ
ルオロエタン冷媒用潤滑油を提供するものである。
【０００４】本発明の潤滑油は、オキシエチレン単位
（Ｃ2 Ｈ4 Ｏ）およびオキシプロピレン単位（Ｃ3 Ｈ6
Ｏ）を有するポリグリコールのモノアルキルエーテル、
つまり 一般式 Ｒ（Ｃ2 Ｈ4 Ｏ）m （Ｃ3 Ｈ6 Ｏ）n Ｈ ・・・（Ｉ） （式中、Ｒは炭素数１〜１０のアルキル基を示し、ｍお
よびｎはそれぞれオキシエチレン単位およびオキシプロ
ピレン単位の繰り返し数を示す。）で表されるポリグリ
コールのモノアルキルエーテルを主成分とするものであ
る。
【０００５】なお、本発明の潤滑油は、このポリグリコ
ールのモノアルキルエーテルを主成分とするものである
が、必要に応じて摩耗防止剤，塩素捕捉剤，酸化防止
剤，金属不活性化剤，消泡剤等を適量配合することも有
効である。ここで、塩素捕捉剤としては各種のものがあ
るが、トリフェニルホスファイト，トリクレシルホスフ
ァイト等の亜リン酸エステル系化合物を好適なものとし
てあげることができ、これを0.００１〜0.５重量％の割
合で添加すればよい。本発明の潤滑油は、１，１，１，
２−テトラフルオロエタン（フロン１３４ａ）を冷媒と
して用いる冷凍機，クーラー（特にカーエアコン），ヒ
ートポンプ等の潤滑剤として有効である。
【０００６】
【実施例】次に、本発明を実施例および比較例に基いて
さらに詳しく説明する。 実施例１および比較例１〜５ 第１表に示す鉱油，アルキルベンゼンあるいはポリグリ
コールを試料として下記の方法にしたがってその性能評
価を行った。結果を第２表に示す。 フロン−２２（モノクロロジフルオロメタン）との二層
分離温度 試料とフロン−２２を２：８（重量）で混合し、二層に
分離する温度を測定した。 フロン−１３４ａとの二層分離温度 試料とフロン−１３４ａを２：８（重量）で混合し、二
層に分離する温度を低温側と高温側で測定した。 ファレックス焼付試験 ＡＳＴＭ Ｄ ３２３３に準拠し、焼付荷重（ポンド）
で評価した。 シールドチューブ試験 試料とフロン−２２との２：１（重量）混合物を鉄，
銅，アルミニウムの触媒とともに、ガラス管に封入し、
１７５℃において７２０時間加熱後、その外観ならびに
析出物の有無を測定した。
【０００７】
【表１】
【０００８】
【表２】
【０００９】
【発明の効果】以上の如く、本発明の潤滑油は、１，
１，１，２−テトラフルオロエタン（フロン１３４ａ）
冷媒下での安定性が良好であって、二層分離温度が低
く、相溶性が良好である。特に、フロン−１３４ａ冷媒
に対する低温側の二層分離温度が低く、高温側の二層分
離温度が高いので、この種の冷媒を用いる冷凍機の潤滑
に有用である。したがって、本発明の潤滑油は、フロン
１３４ａを冷媒として用いる冷凍機，クーラー（特にカ
ーエアコン），ヒートポンプ等の潤滑剤として有効に利
用される。
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ１０Ｎ 40:00 Ｚ 8217−4Ｈ

Claims (2)

    【特許請求の範囲】
  1. 【請求項１】 オキシエチレン単位およびオキシプロピ
    レン単位を有するポリグリコールのモノアルキルエーテ
    ル（但し、アルキル基の炭素数は１〜１０である）を主
    成分とする１，１，１，２−テトラフルオロエタン冷媒
    用潤滑油。
  2. 【請求項２】 モノアルキルエーテルのアルキル基が、
    ブチル基である請求項１記載の潤滑油。
JP4345705A 1987-10-30 1992-12-25 １，１，１，２−テトラフルオロエタン冷媒用潤滑油 Expired - Lifetime JPH07103388B2 (ja)

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JP62-273418 1987-10-30
JP27341887 1987-10-30

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JP63270835A Division JPH06102792B2 (ja) 1987-10-30 1988-10-28 フッ素含有アルカン冷媒用潤滑油

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JPH05247484A true JPH05247484A (ja) 1993-09-24
JPH07103388B2 JPH07103388B2 (ja) 1995-11-08

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KR940001530B1 (ko) * 1987-10-30 1994-02-23 이데미쓰 고산 가부시끼가이샤 플론 냉매용 윤활유
KR100706434B1 (ko) 2006-02-24 2007-04-10 현대자동차주식회사 자동 변속기용 윤활유 조성물
WO2010008640A1 (en) * 2008-07-16 2010-01-21 Dow Global Technologies Inc. Refrigerant compositions including silyl terminated polyalkylene glycols as lubricants and methods for making the same
JP2013014673A (ja) 2011-07-01 2013-01-24 Idemitsu Kosan Co Ltd 圧縮型冷凍機用潤滑油組成物

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JPS53140469A (en) * 1977-05-13 1978-12-07 Nippon Oil Co Ltd Component of high viscosity refrigerator oil
JPS5679175A (en) * 1979-11-30 1981-06-29 Daikin Ind Ltd Absorption refrigerant carrier composition

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JPS5558298A (en) 1978-10-25 1980-04-30 Nippon Oil Co Ltd Lubricating oil for rotary refrigerant compressor
JPS5742119A (en) 1980-08-27 1982-03-09 Mitsubishi Electric Corp Decompression cvd device
JPS5763395A (en) 1980-10-03 1982-04-16 Nippon Oil & Fats Co Ltd Polyether refrigerator oil composition
US4507314A (en) 1983-07-20 1985-03-26 Midit, Societe Fiduciaire Drug for treating affections provoked by a too high histamine level, of the gastroduodenal mucosa and allergic affections
JPS6088679A (ja) 1983-10-21 1985-05-18 Toyoda Gosei Co Ltd ステアリングホイ−ル
US4613445A (en) 1984-07-23 1986-09-23 Union Carbide Corporation Organophosphate-containing antifreeze
US4569774A (en) 1984-11-13 1986-02-11 Mobil Oil Corporation Polyglycol lubricants comprising trifluoromethane sulfonate
JPH0631363B2 (ja) 1985-06-06 1994-04-27 日本石油株式会社 冷凍機用潤滑油組成物
US4755316A (en) 1987-10-23 1988-07-05 Allied-Signal Inc. Refrigeration lubricants
KR940001530B1 (ko) * 1987-10-30 1994-02-23 이데미쓰 고산 가부시끼가이샤 플론 냉매용 윤활유
US4948525A (en) * 1988-04-06 1990-08-14 Nippon Oil Co., Ltd. Lubricating oil compositions for refrigerators
JPWO9811182A1 (en) * 1996-09-12 1998-03-19 Japan Energy Corp Refrigerator oil, hydraulic fluid for refrigerator, and method for lubricating refrigeration system

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
JPS53140469A (en) * 1977-05-13 1978-12-07 Nippon Oil Co Ltd Component of high viscosity refrigerator oil
JPS5679175A (en) * 1979-11-30 1981-06-29 Daikin Ind Ltd Absorption refrigerant carrier composition

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US6316395B1 (en) 2001-11-13
JPH07103388B2 (ja) 1995-11-08
US6191082B1 (en) 2001-02-20
KR890006798A (ko) 1989-06-16
KR940001530B1 (ko) 1994-02-23
US20010018406A1 (en) 2001-08-30

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