WO1998014537A1 - Lubrifiant pour hypercompresseur et procede d'obtention - Google Patents
Lubrifiant pour hypercompresseur et procede d'obtention Download PDFInfo
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- WO1998014537A1 WO1998014537A1 PCT/FR1997/001716 FR9701716W WO9814537A1 WO 1998014537 A1 WO1998014537 A1 WO 1998014537A1 FR 9701716 W FR9701716 W FR 9701716W WO 9814537 A1 WO9814537 A1 WO 9814537A1
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- polymers
- ethylene
- lubricating oil
- oils
- lubricating
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- 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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- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
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- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/04—Fatty oil fractions
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- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
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- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/02—Polyethene
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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
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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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- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
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- 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
- C10M2203/106—Naphthenic fractions
- C10M2203/1065—Naphthenic fractions used as base material
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- C10M2203/108—Residual fractions, e.g. bright stocks
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- C10M2205/024—Propene
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- C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
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Definitions
- the present invention relates to a lubricating oil for an olefin hypercompressor, and to the process for obtaining it, this lubricating oil being particularly suitable for the manufacture of low density polyethylene homopolymers and copolymers.
- the hypercompressors used in the manufacture of low density polyethylenes consist of a piston (plunger) in a jacket, lubrication being necessary in contact with these two elements to avoid seizure.
- ethylene or a mixture of ethylene is compressed with another monomer to form numerous copolymers, and this at a pressure greater than 100 bars.
- the lubricant, injected with lost lubrication comes into contact with the monomer or monomers and, consequently, with the polymer in formation.
- the monomer (s) present can have a washing action with respect to the lubricating oil in the cylinder of the hypercompressor. Such washing by removing the lubricating film leads to seizure of the shirt / piston contact.
- the lubricant used must be able to resist washing by the monomer (s).
- a lubricant very sparingly soluble in the monomer (s) effective with respect to the lubrication of the jacket / piston contact and capable of being pumped, even under high pressure.
- synthetic oils are generally preferred. It is known to take synthetic oils such as pure non-additive polyglycols or even mineral oils such as white oils called codex, thickened with polybutenes.
- Polyglycols have the advantage of having a low solubility in ethylene thus providing a long cylinder / piston life.
- they have drawbacks linked to their physicochemical characteristics: odor problem of the finished product, sticking of polyethylene films (blocking), reduction of the dielectric properties of polyethylene (discomfort for their use in electric cables in particular) and finally their cost generally superior to mineral oils.
- the present invention therefore aims to solve these drawbacks, in particular to limit the cost of lubrication, to eliminate the odor and above all to limit the formation of oil film on the surface of the polyethylene bags, to keep good dielectric properties in the product. finished while maintaining a long piston liner life.
- these oils must be more easily pumped cold even under high pressures.
- a subject of the present invention is therefore a lubricating oil for a hypercompressor containing at least one lubricating base, characterized in that it contains from 0.3 to 30% by weight of at least one polymer from the group consisting of polyolefins obtained from ethylene, propylene and copolymers of these olefins, said polymer being in the form of powder, granules or micronized particles in the form of solids dispersed in said base at room temperature.
- oils according to the invention can be, at least, as easily pumped cold as the commercial lubricants well known to those skilled in the art, which facilitates their use in their application to hypercompressors.
- lubricating base is meant the major hydrocarbon compound of the lubricating oil which will be additive.
- the lubricating bases according to the invention are chosen from mineral oils of petroleum origin, synthetic oils from the group consisting of polyglycols, their esters and poly- ⁇ -olefins, vegetable oils and their mixture.
- these mineral bases are codex white mineral oils and poly- ⁇ -olefins.
- the lubricating oils contain polymers of ethylene and propylene in their composition, they have low coefficients of friction, are partially insoluble in the monomers and they resist washing out by these monomers. In addition, these oils do not add any odor to the finished product.
- the polymers of the invention are polymers of density close to the oils in which they are dispersed, of average molar mass by weight of between
- these polymers are chosen from polyethylenes, polypropylenes, ethylene / vinyl acetate polymers (EVA), ethylene / vinyl acrylate polymers, ethylene / vinyl methacrylate polymers (EVM) and ethylene / acrylate polymers (EDA or ethylene / acrylic derivative).
- EVA ethylene / vinyl acetate polymers
- EVM ethylene / vinyl methacrylate polymers
- EDA or ethylene / acrylic derivative ethylene / acrylic derivative
- the lubricating oil consists of 80 to 99% by weight of a white mineral oil codex and from 1 to 20% by weight of low density polyethylene.
- the additives conventionally used in particular anti-wear, anti-rust additives, yellow metal passivators and polymerization inhibitors.
- a second object of the invention is the method of manufacturing the lubricating oil which consists in melting, with stirring, the polymer in the oil at a temperature greater than or equal to 100 ° C., in cooling the mixture thus formed at room temperature.
- the melting temperature is chosen to be greater than 140 ° C.
- the present example aims to show the superiority of the lubricating oils of the invention with regard to seizure compared to the products of the prior art.
- Each level, maintained for 60 seconds, corresponds to a coefficient of friction; the value of the level is retained before seizing.
- the products according to the invention show better lubrication and a lower coefficient of friction.
- the purpose of the present example is to show the good performance of the lubricants according to the invention with respect to pumping cold or at low temperature depending on the pressure.
- the dynamic viscosities were measured using a high pressure quartz viscometer, the principle of which is based on the damping of the resonance of quartz in the various lubricating oils as a function of pressure and temperature.
- X j _ are much more fluid, even at high pressures than lubricants based on white oils thickened with polybutene C ⁇ . This makes it easier to pump them, even at high pressure.
- the lubricants according to the invention X j _ have a behavior close to polyglycol oils up to pressures of the order of 2000 bars, the ratios of dynamic viscosities being close to 1.
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002267098A CA2267098A1 (fr) | 1996-09-30 | 1997-09-29 | Lubrifiant pour hypercompresseur et procede d'obtention |
JP10516281A JP2001501660A (ja) | 1996-09-30 | 1997-09-29 | ハイパーコンプレッサー用潤滑剤及びその製法 |
AU44650/97A AU4465097A (en) | 1996-09-30 | 1997-09-29 | Lubricant for supercharger and method for obtaining same |
BR9711578A BR9711578A (pt) | 1996-09-30 | 1997-09-29 | Lubrificante para hipercompressor e processo de obten-Æo |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9611892A FR2753986B1 (fr) | 1996-09-30 | 1996-09-30 | Lubrifiant pour hypercompresseur et procede d'obtention |
FR96/11892 | 1996-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998014537A1 true WO1998014537A1 (fr) | 1998-04-09 |
Family
ID=9496194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1997/001716 WO1998014537A1 (fr) | 1996-09-30 | 1997-09-29 | Lubrifiant pour hypercompresseur et procede d'obtention |
Country Status (9)
Country | Link |
---|---|
JP (1) | JP2001501660A (fr) |
KR (1) | KR20000048728A (fr) |
AR (1) | AR009102A1 (fr) |
AU (1) | AU4465097A (fr) |
BR (1) | BR9711578A (fr) |
CA (1) | CA2267098A1 (fr) |
FR (1) | FR2753986B1 (fr) |
WO (1) | WO1998014537A1 (fr) |
ZA (1) | ZA978699B (fr) |
Cited By (5)
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WO2011057925A1 (fr) * | 2009-11-11 | 2011-05-19 | Borealis Ag | Cable et son procede de production |
AU2010318181B2 (en) * | 2009-11-11 | 2014-03-27 | Borealis Ag | A polymer composition and a power cable comprising the polymer composition |
EP2865690A1 (fr) | 2009-11-11 | 2015-04-29 | Borealis AG | Composition polymère comprenant une polyoléfine produite selon un procédé haute pression, procédé haute pression et article |
US9595374B2 (en) | 2010-11-03 | 2017-03-14 | Borealis Ag | Polymer composition and a power cable comprising the polymer composition |
US11078312B2 (en) | 2009-11-11 | 2021-08-03 | Borealis Ag | Crosslinkable polymer composition and cable with advantageous electrical properties |
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US7625848B2 (en) | 2001-12-11 | 2009-12-01 | Southwest Research Institute | Anti-traction compositions |
US7067464B2 (en) | 2001-12-11 | 2006-06-27 | Southwest Research Institute | Easily dispensed, anti-traction, mobility denial system |
US7405184B2 (en) * | 2001-12-11 | 2008-07-29 | Southwest Research Institute | Anti-traction, mobility denial methods and products |
US8778859B2 (en) | 2002-10-03 | 2014-07-15 | The Lubrizol Corporation | Lubricant useful for improving the oil separation performance of a vapor compression system |
WO2006119296A1 (fr) | 2005-05-02 | 2006-11-09 | Southwest Research Institute | Procedes d'elimination d'un revetement lubrifiant disperse de la surface d'un substrat |
ATE545661T1 (de) * | 2007-07-13 | 2012-03-15 | Dow Global Technologies Llc | Hyperkompressorschmiermittel für hochdruck- polyolefinproduktion |
CN104151666B (zh) * | 2007-07-13 | 2019-07-12 | 陶氏环球技术有限责任公司 | 包含不含硅烷官能度的高压聚烯烃的低介电损失动力电缆护套 |
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1996
- 1996-09-30 FR FR9611892A patent/FR2753986B1/fr not_active Expired - Fee Related
-
1997
- 1997-09-29 KR KR1019990702702A patent/KR20000048728A/ko not_active Application Discontinuation
- 1997-09-29 AU AU44650/97A patent/AU4465097A/en not_active Abandoned
- 1997-09-29 WO PCT/FR1997/001716 patent/WO1998014537A1/fr not_active Application Discontinuation
- 1997-09-29 CA CA002267098A patent/CA2267098A1/fr not_active Abandoned
- 1997-09-29 ZA ZA9708699A patent/ZA978699B/xx unknown
- 1997-09-29 BR BR9711578A patent/BR9711578A/pt not_active Application Discontinuation
- 1997-09-29 JP JP10516281A patent/JP2001501660A/ja active Pending
- 1997-09-30 AR ARP970104490A patent/AR009102A1/es unknown
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US11756700B2 (en) | 2009-11-11 | 2023-09-12 | Borealis Ag | Polymer composition and a power cable comprising the polymer composition |
AU2010318181B2 (en) * | 2009-11-11 | 2014-03-27 | Borealis Ag | A polymer composition and a power cable comprising the polymer composition |
US10246527B2 (en) | 2009-11-11 | 2019-04-02 | Borealis Ag | Polymer composition comprising a polyolefin produced in a high pressure process, a high pressure process and an article |
EP2865690A1 (fr) | 2009-11-11 | 2015-04-29 | Borealis AG | Composition polymère comprenant une polyoléfine produite selon un procédé haute pression, procédé haute pression et article |
EA021355B1 (ru) * | 2009-11-11 | 2015-05-29 | Бореалис Аг | Кабель и способ его получения |
EP2499197A1 (fr) | 2009-11-11 | 2012-09-19 | Borealis AG | Cable et son procede de production |
EP2499197B1 (fr) | 2009-11-11 | 2017-03-01 | Borealis AG | Câble et son procédé de production |
US11078312B2 (en) | 2009-11-11 | 2021-08-03 | Borealis Ag | Crosslinkable polymer composition and cable with advantageous electrical properties |
EP2499175B2 (fr) † | 2009-11-11 | 2022-08-17 | Borealis AG | Composition polymère et câble électrique comprenant la composition polymère |
EP3190152A1 (fr) * | 2009-11-11 | 2017-07-12 | Borealis AG | Câble et son procédé de production |
AU2010318178B2 (en) * | 2009-11-11 | 2013-10-24 | Borealis Ag | A cable and production process thereof |
EP2499175B1 (fr) | 2009-11-11 | 2015-03-11 | Borealis AG | Composition polymère et câble électrique comprenant la composition polymère |
US9365708B2 (en) | 2009-11-11 | 2016-06-14 | Borealis Ag | Cable and production process thereof |
EP3190152B1 (fr) | 2009-11-11 | 2019-10-09 | Borealis AG | Câble et son procédé de production |
US10453585B2 (en) | 2009-11-11 | 2019-10-22 | Borealis Ag | Polymer composition and a power cable comprising the polymer composition |
EP2499176B2 (fr) † | 2009-11-11 | 2022-08-10 | Borealis AG | Câble électrique comprenand une composition polymère comprenant une polyoléfine produite selon un procédé haute pression |
WO2011057925A1 (fr) * | 2009-11-11 | 2011-05-19 | Borealis Ag | Cable et son procede de production |
US11390699B2 (en) | 2009-11-11 | 2022-07-19 | Borealis Ag | Crosslinkable polymer composition and cable with advantageous electrical properties |
EP2450910B1 (fr) | 2010-11-03 | 2019-09-25 | Borealis AG | Composition polymère et câble électrique comprenant la composition polymère |
US10950366B2 (en) | 2010-11-03 | 2021-03-16 | Borealis Ag | Polymer composition and a power cable comprising the polymer composition |
US10586634B2 (en) | 2010-11-03 | 2020-03-10 | Borealis Ag | Polymer composition and a power cable comprising the polymer composition |
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US10032543B2 (en) | 2010-11-03 | 2018-07-24 | Borealis Ag | Polymer composition and a power cable comprising the polymer composition |
Also Published As
Publication number | Publication date |
---|---|
BR9711578A (pt) | 1999-08-24 |
AR009102A1 (es) | 2000-03-08 |
ZA978699B (en) | 1998-03-30 |
CA2267098A1 (fr) | 1998-04-09 |
FR2753986B1 (fr) | 1998-10-30 |
KR20000048728A (ko) | 2000-07-25 |
JP2001501660A (ja) | 2001-02-06 |
FR2753986A1 (fr) | 1998-04-03 |
AU4465097A (en) | 1998-04-24 |
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