WO2002024841A2 - Biologisch abbaubare funktionsflüssigkeit für mechanische antriebe - Google Patents
Biologisch abbaubare funktionsflüssigkeit für mechanische antriebe Download PDFInfo
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- WO2002024841A2 WO2002024841A2 PCT/DE2001/003672 DE0103672W WO0224841A2 WO 2002024841 A2 WO2002024841 A2 WO 2002024841A2 DE 0103672 W DE0103672 W DE 0103672W WO 0224841 A2 WO0224841 A2 WO 0224841A2
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- water
- polyaspartic acid
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Definitions
- Biodegradable functional fluid for mechanical drives are Biodegradable functional fluid for mechanical drives.
- the present invention relates to biodegradable functional fluid for mechanical drives according to the preamble of the main and secondary claims.
- glycols and polyglycols for lubrication purposes.
- Polyglycols have a favorable viscosity-temperature behavior, even with high shear gradients, high shear stability and good lubrication behavior, as well as wear protection and high-pressure properties in mixed and boundary friction conditions. When subjected to thermal stress, they decompose only at temperatures above 260 ° C, depending on the molecular structure and without additives. Resistance to oxidation can be achieved with additives.
- liquid polyethylene glycols with a molar mass of 200-400 g / mol are preferably used, which are water-soluble, rapidly biodegradable, physiologically harmless and skin-friendly.
- Hydraulic fluids with 30 to 40% by weight water, 35 to 50% by weight
- Alkylmorpholine are included.
- this morpholine component secures the high pressure
- triazoles and thiazoles can be included as anti-corrosion agents.
- these liquids are 85% biodegradable, however all additives according to VwVwS-99 are in the water hazard classes, in the following
- WGK called, WGK 2 or WGK 3 classified.
- the invention has for its object to provide biodegradable and non-toxic functional fluids for mechanical drives, which are particularly suitable for the hydrodynamic lubrication of slide bearings, preferably for crankshafts of superheated steam engines, with the usual, not over-precise bearing play.
- These functional fluids are to be used in closed engine systems even at sump temperatures of higher than 120 ° C, e.g. B. in the lubricant pan under a crank mechanism, be applicable and be based on water or be dilutable with water.
- water-based functional fluids according to the invention consist of water and an addition of polyaspartic acid.
- the polyaspartic acid contained in all of the above-mentioned functional liquids according to the invention preferably has a molar mass greater than 1,000 g / mol, preferably up to 3,400 g / mol or up to 10,000 g / mol. You can preferably both in the form of
- the functional liquid consists of water and polyethylene and / or alkylene glycols with a molar mass of greater than 1200 g / mol or from proportions of both of the aforementioned substances with the addition of the salts of polyaspartic acid mentioned.
- functional fluids consist of 1.2 monopropylene glycol, also called 1.2 propanediol - and an addition of polyaspartic acid.
- functional fluids consist of 1.2 monopropylene glycol and polyethylene or polyalkylene glycols as well as an addition of polyaspartic acid.
- functional fluids consist of triethylene glycol and an addition of polyaspartic acid.
- the functional liquids can be diluted with water and are biodegradable, the basic liquid consisting of polyethylene or polyalkylene glycols with a molar mass of less than 1,000 g / mol or mixtures of these substances and containing polyaspartic acid.
- the functional liquids can be diluted with water and are partially biodegradable, the basic liquid consisting of tocopherol - vitamin E - with the addition of a proportion of polyaspartic acid with a molar mass of greater than 1,000 to 10,000 g / mol.
- Functional fluids composed in this way are suitable for application temperatures of less than 100.degree.
- Tocopherols are natural and human identical substances.
- Functional fluids according to the invention contain salts of polyaspartic acid, the proportion of which is advantageously ⁇ 5% by weight.
- All types of D-, L- and DL-polyaspartic acids are suitable, but preferably L-polyaspartic acid, as a salt of potassium, sodium, lithium or ammonium with a molecular weight between 1,000 and 10,000 g / mol.
- the molecules are strongly anionic and act as a strong regulator or stabilizer with a TBN number of »100 mgKOH / g for the pH value.
- the polyaspartic acid acts as a dispersing agent, as a corrosion protection additive and prevents limescale deposits. It can be used up to an ambient temperature of 120 ° C.
- Polyaspartic acid is a nature-identical substance and is classified as slightly water-endangering "WGK 1" and, in principle, is biodegradable or biodegradable.
- the polyethylene glycols which can be used according to the invention [CAS: 8038-37- 7; CAS: 9002-90-8; CAS: 25322-58-3] have a molar mass greater than 200 g / mol and preferably up to 3,500 g / mol.
- the solubility of wax-like polyethylene glycol with a molar mass of 3,500 g / mol is, for example, 56% in water at 20 ° C.
- polyethylene glycols decompose without residues above 250 ° C. This is very important for use in a steam engine, because the spread of polyethylene glycols into the steam cycle can hardly be ruled out, but remains without consequences.
- OECD 301 B Because of their water solubility, polyethylene glycols are classified as slightly water-endangering “WGK 1" and can only be classified as toxicological in large quantities.
- the biodegradability (OECD 301 B) is> 85% for molar masses less than 10,000 g / mol.
- This glycol form [CAS: 112-27-6] can also be used according to the invention. Because of the water solubility, its low toxicity and the slow biodegradation - 14d> 95% - it is classified as slightly water-endangering "WGK 1" and can be safely used.
- the butanol-initiated polyalkylene glycols also known as diols, are polymeric
- Ratio of 1: 9 to 9: 1 are suitable and applicable.
- the oral mammalian toxicity (LD 50 rat) is greater than 2,000 mg / kg.
- viscosity and lubricating properties of the functional fluids according to the invention in engine construction common material pairings and constructions, e.g. B. AISn20 for plain bearing treads and tempering steels for the crankshaft.
- flash point (flash point according to ASTM D-92) from 200 to 250 ° C. of conventional lubricants based on hydrocarbons, e.g. B. mineral or polyalphaolefin oils, which would pose a fire hazard in the event of a leak.
- hydrocarbons e.g. B. mineral or polyalphaolefin oils
- the composition according to the invention ensures frost protection down to -30 ° C.
- tocopherols are suitable as a basis for the biodegradable functional fluids according to the invention for mechanical drives with the addition of a proportion of polyaspartic acid with a molar mass of greater than 1,000 to 10,000 g / mol. Tocopherols' *
- Functional fluids according to the invention can also be used in underground mining, for engine lubrication and in the food and pharmaceutical industries.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/380,032 US6913707B2 (en) | 2000-09-22 | 2001-09-20 | Biodegradable functional fluid for mechanic drives |
| EP01985265A EP1320576A2 (de) | 2000-09-22 | 2001-09-20 | Biologisch abbaubare funktionsflüssigkeit für mechanische antriebe |
| US11/019,429 US7060199B2 (en) | 2000-09-22 | 2004-12-22 | Biodegradable functional fluid for mechanical drives |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10049175.8 | 2000-09-22 | ||
| DE10049175A DE10049175A1 (de) | 2000-09-22 | 2000-09-22 | Biologisch abbaubare Funktionsflüssigkeit für mechanische Antriebe |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10380032 A-371-Of-International | 2001-09-20 | ||
| US11/019,429 Division US7060199B2 (en) | 2000-09-22 | 2004-12-22 | Biodegradable functional fluid for mechanical drives |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2002024841A2 true WO2002024841A2 (de) | 2002-03-28 |
| WO2002024841A3 WO2002024841A3 (de) | 2003-02-13 |
Family
ID=7658673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2001/003672 Ceased WO2002024841A2 (de) | 2000-09-22 | 2001-09-20 | Biologisch abbaubare funktionsflüssigkeit für mechanische antriebe |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US6913707B2 (de) |
| EP (1) | EP1320576A2 (de) |
| DE (1) | DE10049175A1 (de) |
| WO (1) | WO2002024841A2 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099004A1 (de) * | 2001-06-01 | 2002-12-12 | Clariant Gmbh | Umweltfreundliche enteisungsmittel und vereisungsschutzmittel fürflugzeuge |
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| DE102007033430A1 (de) * | 2007-07-18 | 2009-01-22 | Evonik Goldschmidt Gmbh | Siliconfreies Schneidöl und seine Verwendung |
| CA2722431C (en) | 2008-04-28 | 2016-08-02 | Dow Global Technologies Inc. | Polyalkylene glycol lubricant composition |
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| US20100168721A1 (en) * | 2008-12-30 | 2010-07-01 | Intuitive Surgical, Inc. | Lubricating tendons in a tendon-actuated surgical instrument |
| US8939963B2 (en) * | 2008-12-30 | 2015-01-27 | Intuitive Surgical Operations, Inc. | Surgical instruments with sheathed tendons |
| DE102009039626A1 (de) * | 2009-09-01 | 2011-03-03 | KLüBER LUBRICATION MüNCHEN KG | Schmierstoffe auf Wasserbasis |
| DE102010010408A1 (de) | 2010-03-05 | 2011-09-08 | Clariant International Limited | Biologisch abbaubare, frostsichere Wärmeträgerflüssigkeit, ihre Verwendung in oberflächennahen, geothermischen Anlagen, und ein Konzentrat zu ihrer Herstellung |
| KR20140019397A (ko) * | 2011-03-23 | 2014-02-14 | 다우 글로벌 테크놀로지스 엘엘씨 | 폴리알킬렌 글리콜계 열 전달 유체 및 단일유체 엔진 오일 |
| WO2017041052A1 (en) | 2015-09-03 | 2017-03-09 | Neptune Medical | Device for endoscopic advancement through the small intestine |
| EP3371287B1 (de) * | 2015-11-06 | 2020-03-25 | Shrieve Chemical Products, Inc. | Mit öl mischbare polyalkylenglykole und verwendungen davon |
| WO2018035452A1 (en) | 2016-08-18 | 2018-02-22 | Neptune Medical | Device and method for enhanced visualization of the small intestine |
| EP3654822B1 (de) | 2017-07-20 | 2023-11-15 | Neptune Medical Inc. | Dynamisch versteiftes überrohr |
| EP3801187B1 (de) | 2018-05-31 | 2024-02-07 | Neptune Medical Inc. | Vorrichtung zur verbesserten visualisierung des dünndarms |
| EP3823711A4 (de) | 2018-07-19 | 2022-05-18 | Neptune Medical Inc. | Dynamisch versteifende medizinische kompositstrukturen |
| WO2020214221A1 (en) | 2019-04-17 | 2020-10-22 | Neptune Medical Inc. | Dynamically rigidizing composite medical structures |
| US11793392B2 (en) | 2019-04-17 | 2023-10-24 | Neptune Medical Inc. | External working channels |
| US11744443B2 (en) | 2020-03-30 | 2023-09-05 | Neptune Medical Inc. | Layered walls for rigidizing devices |
| US12121677B2 (en) | 2021-01-29 | 2024-10-22 | Neptune Medical Inc. | Devices and methods to prevent inadvertent motion of dynamically rigidizing apparatuses |
| CA3211622A1 (en) | 2021-03-10 | 2022-09-15 | Neal Tanner | Control of robotic dynamically rigidizing composite medical structures |
| CN113583745B (zh) * | 2021-07-09 | 2022-08-26 | 煤炭科学技术研究院有限公司 | 一种兼容型液压支架用浓缩液及其制备方法 |
| CN113403132B (zh) * | 2021-07-12 | 2022-08-02 | 煤炭科学技术研究院有限公司 | 一种低温环境中快速还原型液压支架用浓缩液及其制备方法 |
| US12564312B2 (en) | 2022-04-19 | 2026-03-03 | Neptune Medical Inc. | Managing and manipulating a long length robotic endoscope |
| KR20250003955A (ko) | 2022-04-27 | 2025-01-07 | 넵튠 메디컬 인코포레이티드 | 내시경용 위생 외장 |
| FR3149903A1 (fr) * | 2023-06-13 | 2024-12-20 | Totalenergies Onetech | Utilisation de polyalkylène glycols à titre d’agents antigel dans une composition lubrifiante aqueuse |
| AU2024338348A1 (en) | 2023-09-07 | 2026-03-19 | Neptune Medical Inc. | Pressure rigidization apparatuses and methods |
| WO2025072977A1 (en) | 2023-09-28 | 2025-04-03 | Neptune Medical Inc. | Telescoping robot |
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-
2000
- 2000-09-22 DE DE10049175A patent/DE10049175A1/de not_active Withdrawn
-
2001
- 2001-09-20 US US10/380,032 patent/US6913707B2/en not_active Expired - Fee Related
- 2001-09-20 EP EP01985265A patent/EP1320576A2/de not_active Withdrawn
- 2001-09-20 WO PCT/DE2001/003672 patent/WO2002024841A2/de not_active Ceased
-
2004
- 2004-12-22 US US11/019,429 patent/US7060199B2/en not_active Expired - Fee Related
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| GB164303A (en) | 1920-06-03 | 1922-03-16 | Heinrich Langer | An improved lubricant suitable for use in cylinders of steam engines and the like |
| US4855070A (en) | 1986-12-30 | 1989-08-08 | Union Carbide Corporation | Energy transmitting fluid |
| EP0464491A1 (de) | 1990-06-29 | 1992-01-08 | Nippon Oil Co. Ltd. | Verwendung von einem Schmierölzusammensetzung in Kompressoren |
| EP0596197A1 (de) | 1992-11-06 | 1994-05-11 | King Industries, Inc. | N-Acyl,N-hydrocarbyloxyalkyl Asparaginsäurederivat enthaltende Schmiermittelzusammensetzung |
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| WO2002099004A1 (de) * | 2001-06-01 | 2002-12-12 | Clariant Gmbh | Umweltfreundliche enteisungsmittel und vereisungsschutzmittel fürflugzeuge |
| US6921495B2 (en) | 2001-06-01 | 2005-07-26 | Clariant Gmbh | Environmentally compatible defrosting and antifreeze agents for aeroplanes |
Also Published As
| Publication number | Publication date |
|---|---|
| US6913707B2 (en) | 2005-07-05 |
| US20040094743A1 (en) | 2004-05-20 |
| WO2002024841A3 (de) | 2003-02-13 |
| US7060199B2 (en) | 2006-06-13 |
| DE10049175A1 (de) | 2002-04-25 |
| US20050143264A1 (en) | 2005-06-30 |
| EP1320576A2 (de) | 2003-06-25 |
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