JP2001501660A - Lubricant for hyper compressor and method for producing the same - Google Patents

Lubricant for hyper compressor and method for producing the same

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Publication number
JP2001501660A
JP2001501660A JP10516281A JP51628198A JP2001501660A JP 2001501660 A JP2001501660 A JP 2001501660A JP 10516281 A JP10516281 A JP 10516281A JP 51628198 A JP51628198 A JP 51628198A JP 2001501660 A JP2001501660 A JP 2001501660A
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Japan
Prior art keywords
oil
lubricating oil
ethylene
lubricating
polymer
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Pending
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JP10516281A
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Japanese (ja)
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バルバラン，レモン
テイエボ，ジヤン―マリー
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エルフ・アンタール・フランス
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Publication of JP2001501660A publication Critical patent/JP2001501660A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
    • C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
    • C10M145/14—Acrylate; Methacrylate
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/02—Petroleum fractions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/04—Fatty oil fractions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/02—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/04—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing propene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of a saturated carboxylic or carbonic acid
    • C10M145/08—Vinyl esters of a saturated carboxylic or carbonic acid
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    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/104—Aromatic fractions
    • C10M2203/1045—Aromatic fractions used as base material
    • C—CHEMISTRY; METALLURGY
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/106—Naphthenic fractions
    • C10M2203/1065—Naphthenic fractions used as base material
    • C—CHEMISTRY; METALLURGY
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/108—Residual fractions, e.g. bright stocks
    • C10M2203/1085—Residual fractions, e.g. bright stocks used as base material
    • C—CHEMISTRY; METALLURGY
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    • C—CHEMISTRY; METALLURGY
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    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
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    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
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    • C10M2205/024—Propene
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    • C10M2205/14—Synthetic waxes, e.g. polythene waxes
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    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/401—Fatty vegetable or animal oils used as base material
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    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
    • C10M2207/4045—Fatty vegetable or animal oils obtained from genetically modified species used as base material
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    • C10M2209/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
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    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
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Abstract

(57)【要約】 本発明は少なくとも１種の潤滑基油を含有するスーパーチャージャー用潤滑油に関し、この潤滑油はエチレンとプロピレンから得られるポリオレフィン及びこれらのオレフィンの共重合体からなる群の少なくとも１種の重合体を０．３〜３０重量％含有しており、前記重合体は室温において前記基油中に分散している固体状態の粉末、顆粒又は微粉粒子の形状である。   (57) [Summary] The present invention relates to a lubricating oil for a supercharger containing at least one lubricating base oil. 0.3 to 30% by weight, wherein the polymer is in the form of solid powder, granules or fine powder particles dispersed in the base oil at room temperature.

Description

【発明の詳細な説明】 ハイパーコンプレッサー用潤滑剤及びその製法 本発明は、オレフィン・ハイパーコンプレッサー（過給器、スーパーチャージ ャー）用の潤滑油及びそれを製造するためのプロセスに関し、この潤滑油は特に 低密度ポリエチレン単独重合体及び共重合体を製造するために適している。 低密度ポリエチレンの製造において使用されるハイパーコンプレッサーはスリ ーブとその中のピストン（プランジャー）とを含んでおり、これら２つの素子の 接触部では焼付き（ｓｅｉｚｉｎｇ）を回避するために潤滑が不可欠である。こ れらのハイパーコンプレッサーにおいては、エチレン又は、多種の共重合体を形 成するためのエチレンと他の単量体との混合物が圧縮されるが、これは１００ｂ ａｒを越える圧力下で行われる。オール・ロス潤滑油として注入される潤滑剤は 、単量体又は単量体混合物と接触し、その結果として形成される重合体と接触す る。しかし、存在している単量体がハイパーコンプレッサーのシリンダー内で潤 滑油に対してウォッシング・アウト作用を生じることがある。そうしたウォッシ ング・アウトは、 潤滑油膜を取り除くことによってスリーブ／ピストン接触部の焼付きをもたらす 。この作用を補正するために、使用される潤滑剤は単量体によるウォッシングに 抵抗できなければならない。従って、単量体にほんの僅かしか可溶性ではなく、 スリーブ／ピストン接触部の潤滑に関して効果的であり、さらに高圧下でさえポ ンピングされ得る潤滑剤を使用することが好ましい。 ポリエチレンを製造するために使用されるハイパーコンプレッサー用に既知の 潤滑剤の中では、一般的には合成油が好ましい。純粋の、何も補足されていない ポリグリコール、或いは又ポリブテンを用いて増粘されたいわゆるｃｏｄｅｘ( コーデックス)ホワイト油のような鉱油を利用することが知られている。ポリグ リコールは、エチレンに対して低溶解性であるという長所を有しており、従って シリンダー／ピストンに長い寿命を付与する。しかし、ポリグリコールはそれら の物理化学的特性に関連した欠点を有している。すなわち、最終製品の臭いの問 題、ポリエチレンフィルムへの粘着（ブロッキング）、ポリエチレンの誘電特性 の低下（特に電気ケーブルにおいて使用した場合に不都合）、及び最後に鉱油よ り一般に高額である費用である。 そこで本発明の目的は、これらの欠点を克服すること、特に 潤滑の費用を抑えること、臭いを排除すること、特にポリエチレンバッグの表面 での油膜形成を制限すること、及び同時にスリーブ／ピストンの長い寿命を維持 しながら最終製品の良好な誘電特性を保持することである。さらに、これらの油 は低温条件下において、高圧下もより容易にポンピングされなければならない。 従って本発明の主題は、エチレン、プロピレンから得られるポリオレフィン及 びこれらのオレフィンの共重合体からなる群の少なくとも１種の重合体を０.３ 〜３０重量％含有しており、前記合体が粉末、顆粒又は微粉粒子の形状であり、 室温では潤滑基油中に固体状態で分散していることを特徴とする、少なくとも１ 種の前記潤滑基油を含有しているハイパーコンプレッサー用の潤滑油である。 本発明によるそうした油は、少なくとも当業者に周知の市販潤滑油と全く同様 に低温条件下で容易にポンピングすることができ、ハイパーコンプレッサーへ適 用した場合に容易に使用できる。 潤滑基油という用語は、潤滑油の主要部をなし添加剤を受容する、炭化水素系 の化合物を意味している。 本発明に従った潤滑基油は、石油起源の鉱油、ポリグリコール、それらのエス テル及びポリ−α−オレフィンからなる群の合成油、植物油及びそれらの混合物 から選択される。本発明のある好ましい態様では、これらの鉱油基油はｃｏｄｅ ｘホワイト鉱油及びポリ−α−オレフィンである。 本潤滑油はそれらの組成中にエチレン及びプロピレンの重合体を含有している ので、摩擦係数か低く、単量体には特に不溶性であり、これらの単量体によるウ ォッシング・アウトに抵抗する。さらに、これらの油は最終製品に何の臭いも付 け加えない。 本発明の重合体は、それらが分散させられる油の密度に近い密度を備えた重合 体であり、２０，０００〜１００，０００の重量平均モル質量を備えている。 本発明のある好ましい態様では、これらの重合体はポリエチレン、ポリプロピ レン、エチレン／酢酸ビニル（ＥＶＡ）重合体、エチレン／アクリル酸ビニル重 合体、エチレン／メタクリル酸ビニル（ＥＶＭ）重合体及びエチレン／アタリレ ート（ＥＤＡ又はエチレン／アクリル誘導体）重合体から選択される。 本発明のある実施態様では、潤滑油は８０〜９９重量％の ｃｏｄｅｘホワイト鉱油と１〜２０重量％の低密度ポリエチレンとから構成され る。 本発明に従うと、慣習的に使用される添加剤、特に摩耗防止及びさび止め添加 剤、黄色金属不動態化剤及び重合阻害剤を前記潤滑油に添加することができる。 本発明の第２の主題は、重合体を攪拌しながら１００℃以上の温度で油中に融 解させ、さらにそうして製造された混合物を室温へ冷却させることからなる、潤 滑油を製造するプロセスである。本発明に従った好ましいプロセス様式では、１ ４０℃を越える溶融温度が選択される。 室温に戻すと、粉末及び顆粒の粒子は室温において潤滑基油に分散した固体の 形状に戻る。微粉粒子の場合は、前記粒子を分散させる目的で混合物を加熱する ことが不要となる。この理由は、微粉粒子が潤滑基油の密度に近い密度を持って いるので、例えば毎分１０，０００回転を超える速度でＵｌｔｒａ−Ｔｕｒｒａ ｘスターラーを使用して構成成分の混合物を必要な比率で単純に攪拌することで 十分足りるからである。 本発明の長所を説明するために、例示を目的とした限定的ではない実施例を下 記に記載する。 実施例Ｉ 本実施例は、先行技術の製品と比較して、本発明の潤滑油が焼付きに関して優 れていることを証明するためのものである。 本発明による数種のサンプルを製造し、Ｘと称する。先行技術の比較サンプル はＣと称する。下記の表Ｉは、試験した種々のサンプルの組成を示している。 (a) ＥＬＦホワイト油＝ｃｏｄｅｘパラフィン系ホワイト油／グレード６８(b) ホワイト油Ａ及びＢ＝市販油 これらのサンプル全部をＦｏｒｄ Ｅｕｂｊｉ １Ａ法に由来する高圧Ｆａｌ ｅｘ機で試験した。本試験は、それをつかんでいる２個のつかみの間で毎分２９ ０回転の速度でシリンダー を回転させること、及び焼付きか起こるまで４４５ニュートンの各段階で摩擦ト ルクを測定することから構成される。 ６０秒間維持される各段階は摩擦係数に相当する。焼付きか発生する前の段階 の数値を選択する。 下記の表ＩＩに、試験結果をまとめた。 低濃度の重合体に対しては、本発明に従った製品はより良好な潤滑及びより低 い摩擦係数を示す。 実施例ＩＩ 本実施例の目的は、低温条件下、圧力の関数として、本発明に従った潤滑剤の ポンピングに関する高性能レベルを証明することにある。ここではポンピングの 特性である動的粘度を、表 Ｉ及びIIに挙げられている対照Ｔ、Ｘ2（発明）及び市販油Ｃ1（ホワイト油／ポ リブテン）について、１〜３，０００ｂａｒの範囲内の圧力下で２種の温度３０ 及び５０℃において比較する。 動的粘度測定は、測定原理が圧力及び温度の関数として様々な潤滑油に入れら れた石英の共振減衰に基づいている高圧石英粘度計を用いて実施された。 下記の表ＩＩＩにまとめた結果は、被験製品の動的粘度対ポリグリコール油の 動的粘度の比に相当する。 本発明に従った潤滑剤Ｘiは、高圧下でさえポリブテンを用いて増粘されたホ ワイト油Ｃiを基油とする潤滑油よりはるかに流動性が高いことが明らかになっ ている。その結果、それらは高圧下でさえより容易にポンピングされ得る。さら に本発明に従った潤滑剤Ｘiは、約２，０００ｂａｒの圧力下までは動的粘度比 が１の領域内にあるポリグリコール油に類似する挙動 を示す。DETAILED DESCRIPTION OF THE INVENTION for the hyper compressor lubricants and their preparation the invention, olefin-hyper compressor (supercharger, the supercharger) relates to a process for preparing lubricating oil and that for the lubricating oil is particularly Suitable for producing low density polyethylene homopolymers and copolymers. The hypercompressor used in the production of low-density polyethylene includes a sleeve and a piston (plunger) therein, and at the interface of these two elements lubrication is essential to avoid seizing. is there. In these hypercompressors, ethylene or a mixture of ethylene and other monomers to form a variety of copolymers is compressed, which is performed at pressures above 100 bar. Lubricant injected as an all-loss lubricating oil contacts the monomer or monomer mixture and comes into contact with the resulting polymer. However, the monomers present may cause a washing-out effect on the lubricating oil in the cylinder of the hypercompressor. Such washing out results in seizure of the sleeve / piston contact by removing the lubricant film. To compensate for this effect, the lubricant used must be able to resist washing by the monomers. Therefore, it is preferable to use a lubricant that is only slightly soluble in the monomer, is effective in lubricating the sleeve / piston contact, and can be pumped even under high pressure. Among the lubricants known for hypercompressors used to make polyethylene, synthetic oils are generally preferred. It is known to utilize pure, unsupplemented polyglycols or mineral oils such as so-called codex white oils thickened with polybutene. Polyglycols have the advantage of being poorly soluble in ethylene and thus provide a long life for the cylinder / piston. However, polyglycols have disadvantages associated with their physicochemical properties. Problems of end product odor, sticking (blocking) to polyethylene film, reduced dielectric properties of polyethylene (especially disadvantageous when used in electrical cables), and finally, costs that are generally higher than mineral oil. It is an object of the present invention to overcome these disadvantages, in particular to reduce the cost of lubrication, to eliminate odors, in particular to limit the formation of oil films on the surface of polyethylene bags, and at the same time to increase the length of the sleeve / piston. The goal is to maintain good dielectric properties of the final product while maintaining life. In addition, these oils must be more easily pumped under high pressure under cold conditions. Accordingly, the subject of the present invention comprises from 0.3 to 30% by weight of at least one polymer of the group consisting of polyolefins obtained from ethylene and propylene and copolymers of these olefins, wherein said coalescence is a powder, A lubricating oil for a hypercompressor containing at least one kind of the above-mentioned lubricating base oils, which is in the form of granules or fine powder particles and is dispersed in a solid state in the lubricating base oil at room temperature. . Such oils according to the invention can be easily pumped under low temperature conditions, at least just like commercial lubricating oils known to those skilled in the art, and can be easily used when applied to hypercompressors. The term lubricating base oil refers to a hydrocarbon-based compound that forms a major part of the lubricating oil and accepts additives. The lubricating base oil according to the invention is selected from the group consisting of mineral oils of petroleum origin, polyglycols, their esters and poly-α-olefins, synthetic oils, vegetable oils and mixtures thereof. In certain preferred aspects of the invention, these mineral base oils are code x white mineral oil and poly-α-olefins. Because the lubricating oils contain polymers of ethylene and propylene in their composition, they have a low coefficient of friction, are particularly insoluble in monomers, and resist washing out by these monomers. Furthermore, these oils do not add any odor to the final product. The polymers of the present invention are polymers having a density close to the density of the oil in which they are dispersed, and have a weight average molar mass of 20,000-100,000. In certain preferred embodiments of the present invention, these polymers are polyethylene, polypropylene, ethylene / vinyl acetate (EVA) polymers, ethylene / vinyl acrylate polymers, ethylene / vinyl methacrylate (EVM) polymers and ethylene / atalylate. (EDA or ethylene / acrylic derivative) selected from polymers. In one embodiment of the invention, the lubricating oil is comprised of 80-99% by weight codex white mineral oil and 1-20% by weight low density polyethylene. According to the invention, conventionally used additives, in particular antiwear and rust inhibitors, yellow metal passivators and polymerization inhibitors, can be added to the lubricating oil. A second subject of the present invention is a process for producing a lubricating oil, comprising melting the polymer in an oil at a temperature above 100 ° C. with stirring and cooling the mixture so produced to room temperature. It is. In a preferred process mode according to the invention, a melting temperature above 140 ° C. is chosen. Upon returning to room temperature, the powder and granule particles return to a solid form dispersed in the lubricating base oil at room temperature. In the case of fine powder particles, it is not necessary to heat the mixture for the purpose of dispersing the particles. The reason for this is that the fine particles have a density close to that of the lubricating base oil, so that the mixture of constituents can be mixed in the required ratio, for example using an Ultra-Turrax stirrer at a speed in excess of 10,000 revolutions per minute. This is because simply stirring is sufficient. The following non-limiting examples are provided to illustrate the advantages of the present invention. Example I This example is to demonstrate that the lubricating oil of the present invention is superior in seizure as compared to products of the prior art. Several samples according to the invention have been produced and designated X. The prior art comparative sample is designated C. Table I below shows the composition of the various samples tested. (a) ELF white oil = codex paraffinic white oil / grade 68 (b) White oil A and B = commercial oil All of these samples were tested on a high pressure Falex machine derived from the Ford Eubji 1A method. The test consisted of rotating the cylinder at a rate of 290 revolutions per minute between the two grippers holding it, and measuring the friction torque at each step of 445 Newtons until seizure occurred. Is done. Each step maintained for 60 seconds corresponds to a coefficient of friction. Select a value before the burn-in occurs. Table II below summarizes the test results. For low concentrations of the polymer, the products according to the invention show better lubrication and a lower coefficient of friction. Example II The purpose of this example is to demonstrate a high performance level for pumping a lubricant according to the present invention as a function of pressure under low temperature conditions. Dynamic viscosity is a characteristic of pumping here, the control T listed in Tables I and II, X 2 (invention) and a commercial oil C 1 (white oil / polybutene), the range of 1~3,000bar At a temperature of 30 ° C. and 50 ° C. Dynamic viscosity measurements were performed using a high-pressure quartz viscometer whose measurement principle was based on resonant damping of quartz in various lubricants as a function of pressure and temperature. The results, summarized in Table III below, correspond to the ratio of the dynamic viscosity of the test product to the dynamic viscosity of the polyglycol oil. Lubricants X i in accordance with the present invention are found to be highly much fluidity than lubricating oil white oil C i which is thickened using a polybutene even under high pressure and base oil. As a result, they can be more easily pumped even under high pressure. Further lubricant X i in accordance with the present invention, until a pressure of about 2,000bar shows the behavior of the dynamic viscosity ratio is similar to polyglycol oil within the first region.

【手続補正書】特許法第１８４条の８第１項 【提出日】平成１０年９月１１日（１９９８．９．１１） 【補正内容】 請求の範囲 １．大部分が少なくとも１種の潤滑基油からなりポリオレフィンを含有するハイ パーコンプレッサー用潤滑油であって、室温高圧下で液体であること、粉末、顆 粒又は微粉粒子の形態で導入され、かつ室温で前記基油中に固体状態で分散して いる、重量平均モル質量が２０，０００〜１００，０００で、エチレン及び／又 はプロピレンからなる少なくとも１種のポリオレフィンを０．３〜３０重量％含 有していること、及び、前記ポリオレフィンが潤滑基油の密度に近い密度を有す ることを特徴とする、前記潤滑油。 ２． 少なくとも１種の潤滑基油が石油起源の鉱油、並びにポリグリコール、エ ステル及びポリ−α−オレフィンからなる群の合成油、並びに植物油、並びにそ れらの混合物から選択されることを特徴とする、請求項１に記載の潤滑油。 ３． 潤滑基油がｃｏｄｅｘホワイト鉱油又はポリ−α−オレフィンであること を特徴とする、請求項２に記載の潤滑油。 ４． 重合体が置換されていてもよいエチレン及びプロピレンの重合体及び共重 合体、特にポリエチレン、ポリプロピレン、 エチレン／酢酸ビニル（ＥＶＡ）重合体、エチレン／アクリル酸ビニル重合体、 エチレン／メタクリル酸ビニル（ＥＶＭ）重合体及びエチレン／アクリレート（ ＥＤＡ）重合体から選択されることを特徴とする、請求項１〜３のいずれか一項 に記載の潤滑油。 ５． ８０〜９９重量％のｃｏｄｅｘホワイト鉱油と１〜２０重量％の低密度ポ リエチレンとから構成されることを特徴とする、請求項１〜４のいずれか一項に 記載の潤滑油。 ６． １００℃以上、好ましくは１４０℃より高い温度で攪拌しなから重合体を 油中に融解させ、得られた混合物を室温に冷却することからなる、請求項１〜５ のいずれか一項に記載の潤滑油の製造方法。[Procedure for Amendment] Article 184-8, Paragraph 1 of the Patent Act [Date of Submission] September 11, 1998 (September 11, 1998) [Details of Amendment] Claims 1. A hyper-compressor lubricating oil comprising at least one lubricating base oil and containing polyolefins, which is liquid at room temperature and high pressure, is introduced in the form of powder, granules or fine powder particles, and is used at room temperature. A weight-average molar mass of 20,000 to 100,000, which is dispersed in a solid state in a base oil, and contains 0.3 to 30% by weight of at least one polyolefin composed of ethylene and / or propylene. And the polyolefin has a density close to the density of a lubricating base oil. 2. The at least one lubricating base oil is selected from mineral oils of petroleum origin and synthetic oils of the group consisting of polyglycols, esters and poly-alpha-olefins, and vegetable oils, and mixtures thereof. 2. The lubricating oil according to 1. 3. The lubricating oil according to claim 2, wherein the lubricating base oil is a codex white mineral oil or a poly-α-olefin. 4. Polymers and copolymers of ethylene and propylene which may be substituted, especially polyethylene, polypropylene, ethylene / vinyl acetate (EVA) polymers, ethylene / vinyl acrylate polymers, ethylene / vinyl methacrylate (EVM) 4. The lubricating oil according to claim 1, wherein the lubricating oil is selected from polymers and ethylene / acrylate (EDA) polymers. 5. Lubricating oil according to any of the preceding claims, characterized in that it is composed of 80 to 99% by weight of codex white mineral oil and 1 to 20% by weight of low density polyethylene. 6. The method according to claim 1, comprising melting the polymer in oil while stirring at a temperature of 100 ° C. or higher, preferably higher than 140 ° C., and cooling the resulting mixture to room temperature. Method of producing lubricating oil.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ１０Ｎ 40:30 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) C10N 40:30

Claims (1)

【特許請求の範囲】 １． 少なくとも１種の潤滑基油を含有するハイパーコンプレッサー用の潤滑油 であって、エチレン、プロピレン及びこれらのオレフィンの共重合体から得られ るポリオレフィンからなる群の少なくとも１種の重合体を０．３〜３０重量％含 有しており、前記重合体は粉末、顆粒又は微粉粒子の形状であり、室温では固体 状態で前記基油中に分散していることを特徴とする、前記潤滑油。 ２． 少なくとも１種の潤滑基油が石油起源の鉱油、ポリグリコール、エステル 及びポリ−α−オレフィンからなる群の合成油、及び植物油、及びそれらの混合 物から選択されることを特徴とする、請求項１に記載の潤滑油。 ３． 潤滑基油がｃｏｄｅｘホワイト鉱油及びポリ−α−オレフィンであること を特徴とする、請求項２に記載の潤滑油。 ４． 重合体が、２０，０００〜１００，０００の重量平均モル質量を有する、 それが分散している油の密度に近い密度を有する重合体であることを特徴とする 、請求項１〜３に記載の潤滑油。 ５． 重合体類置換されていてもよいエチレン及びプロピレンの重合体及び共重 合体、特にポリエチレン、ポリプロピレン、エチレン／酢酸ビニル（ＥＶＡ）重 合体、エチレン／アタリル酸ビニル重合体、エチレン／メタタリル酸ビニル（Ｅ ＶＭ）重合体及びエチレン／アタリレート（ＥＤＡ）重合体から選択されること を特徴とする、請求項１〜４に記載の潤滑油。 ６． ８０〜９９重量％のｃｏｄｅｘホワイト鉱油と１〜２０重量％の低密度ポ リエチレンとから構成されることを特徴とする、請求項１〜５に記載の潤滑油。 ７． 重合体を攪拌しながら１００℃以上、好ましくは１４０℃より上の温度で 油中に融解させ、さらにそうして製造された混合物を室温へ冷却させることから なる、請求項１〜６に記載の潤滑油を製造するためのプロセス。[Claims] 1. Lubricating oil for hypercompressors containing at least one lubricating base oil Which is obtained from a copolymer of ethylene, propylene and these olefins. 0.3 to 30% by weight of at least one polymer of the group consisting of Wherein the polymer is in the form of powder, granules or fine powder particles, and is solid at room temperature. The lubricating oil, wherein the lubricating oil is dispersed in the base oil in a state. 2. Mineral oil, polyglycol, ester of at least one lubricating base oil of petroleum origin Oils and vegetable oils of the group consisting of and poly-α-olefins, and mixtures thereof The lubricating oil according to claim 1, wherein the lubricating oil is selected from the group consisting of: 3. The lubricating base oil is codex white mineral oil and poly-α-olefin The lubricating oil according to claim 2, characterized in that: 4. The polymer has a weight average molar mass of 20,000 to 100,000; It is characterized by being a polymer with a density close to the density of the dispersed oil The lubricating oil according to claim 1. 5. Polymers and copolymers of ethylene and propylene which may be substituted Coalescing, especially polyethylene, polypropylene, ethylene / vinyl acetate (EVA) Merging, ethylene / vinyl acrylate polymer, ethylene / vinyl methacrylate (E VM) selected from polymers and ethylene / atalylate (EDA) polymers The lubricating oil according to any one of claims 1 to 4, characterized in that: 6. 80-99% by weight codex white mineral oil and 1-20% by weight low density The lubricating oil according to claim 1, wherein the lubricating oil is composed of ethylene. 7. While stirring the polymer at a temperature of 100 ° C. or higher, preferably 140 ° C. From melting in oil and allowing the resulting mixture to cool to room temperature. A process for producing a lubricating oil according to claims 1 to 6.
JP10516281A 1996-09-30 1997-09-29 Lubricant for hyper compressor and method for producing the same Pending JP2001501660A (en)

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FR9611892A FR2753986B1 (en) 1996-09-30 1996-09-30 LUBRICANT FOR HYPERCOMPRESSOR AND PROCESS FOR OBTAINING SAME
FR96/11892 1996-09-30
PCT/FR1997/001716 WO1998014537A1 (en) 1996-09-30 1997-09-29 Lubricant for supercharger and method for obtaining same

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AR009102A1 (en) 2000-03-08
ZA978699B (en) 1998-03-30
FR2753986A1 (en) 1998-04-03
WO1998014537A1 (en) 1998-04-09
CA2267098A1 (en) 1998-04-09
KR20000048728A (en) 2000-07-25
BR9711578A (en) 1999-08-24
AU4465097A (en) 1998-04-24

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