CA2258248C - High oleic acid electrical insulation fluids and method of making the same - Google Patents
High oleic acid electrical insulation fluids and method of making the same Download PDFInfo
- Publication number
- CA2258248C CA2258248C CA002258248A CA2258248A CA2258248C CA 2258248 C CA2258248 C CA 2258248C CA 002258248 A CA002258248 A CA 002258248A CA 2258248 A CA2258248 A CA 2258248A CA 2258248 C CA2258248 C CA 2258248C
- Authority
- CA
- Canada
- Prior art keywords
- less
- electrical
- weight
- oleic acid
- electrical insulation
- 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.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 62
- 238000010292 electrical insulation Methods 0.000 title claims abstract description 39
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 title claims abstract description 38
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 title claims abstract description 23
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 title claims abstract description 23
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000005642 Oleic acid Substances 0.000 title claims abstract description 23
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 title claims abstract description 23
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 58
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 25
- 229930195729 fatty acid Natural products 0.000 claims abstract description 25
- 239000000194 fatty acid Substances 0.000 claims abstract description 25
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 25
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 claims abstract description 17
- 239000004927 clay Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 8
- 239000002480 mineral oil Substances 0.000 claims description 8
- 239000004322 Butylated hydroxytoluene Substances 0.000 claims description 7
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 7
- 229940095259 butylated hydroxytoluene Drugs 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 7
- 235000010446 mineral oil Nutrition 0.000 claims description 7
- 235000019282 butylated hydroxyanisole Nutrition 0.000 claims description 6
- 239000004255 Butylated hydroxyanisole Substances 0.000 claims description 5
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 claims description 5
- 229940043253 butylated hydroxyanisole Drugs 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 235000020778 linoleic acid Nutrition 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- 229920000193 polymethacrylate Polymers 0.000 claims description 5
- 235000021314 Palmitic acid Nutrition 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000000994 depressogenic effect Effects 0.000 claims description 4
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 claims description 4
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 4
- 239000008117 stearic acid Substances 0.000 claims description 4
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 claims description 3
- 235000020661 alpha-linolenic acid Nutrition 0.000 claims description 3
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 claims description 2
- 229960004488 linolenic acid Drugs 0.000 claims 2
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 claims 2
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 abstract description 24
- 150000004671 saturated fatty acids Chemical class 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 84
- 235000019198 oils Nutrition 0.000 description 83
- 230000003647 oxidation Effects 0.000 description 17
- 238000007254 oxidation reaction Methods 0.000 description 17
- 239000002253 acid Substances 0.000 description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 10
- 239000003112 inhibitor Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 235000015112 vegetable and seed oil Nutrition 0.000 description 8
- 239000008158 vegetable oil Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 150000007513 acids Chemical class 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- -1 triglyceride ester Chemical class 0.000 description 5
- 150000002978 peroxides Chemical class 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 150000003626 triacylglycerols Chemical class 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229960000892 attapulgite Drugs 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229910052625 palygorskite Inorganic materials 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000208818 Helianthus Species 0.000 description 2
- 235000003222 Helianthus annuus Nutrition 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 235000019197 fats Nutrition 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- 235000014698 Brassica juncea var multisecta Nutrition 0.000 description 1
- 235000006008 Brassica napus var napus Nutrition 0.000 description 1
- 235000006618 Brassica rapa subsp oleifera Nutrition 0.000 description 1
- 244000188595 Brassica sinapistrum Species 0.000 description 1
- 235000004977 Brassica sinapistrum Nutrition 0.000 description 1
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 244000020518 Carthamus tinctorius Species 0.000 description 1
- 235000003255 Carthamus tinctorius Nutrition 0.000 description 1
- URXZXNYJPAJJOQ-UHFFFAOYSA-N Erucic acid Natural products CCCCCCC=CCCCCCCCCCCCC(O)=O URXZXNYJPAJJOQ-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 235000019486 Sunflower oil Nutrition 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical group 0.000 description 1
- 150000001299 aldehydes Chemical group 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000000828 canola oil Substances 0.000 description 1
- 235000019519 canola oil Nutrition 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000009882 destearinating Methods 0.000 description 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 description 1
- 238000012214 genetic breeding Methods 0.000 description 1
- 238000010353 genetic engineering Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical group 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000002889 oleic acids Chemical class 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Chemical group 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002600 sunflower oil Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Insulating Materials (AREA)
- Lubricants (AREA)
- Fats And Perfumes (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66572196A | 1996-06-18 | 1996-06-18 | |
| US08/665,721 | 1996-06-18 | ||
| PCT/US1997/010045 WO1997049100A1 (en) | 1996-06-18 | 1997-06-11 | High oleic acid electrical insulation fluids and method of making the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2258248A1 CA2258248A1 (en) | 1997-12-24 |
| CA2258248C true CA2258248C (en) | 2004-04-06 |
Family
ID=24671313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002258248A Expired - Fee Related CA2258248C (en) | 1996-06-18 | 1997-06-11 | High oleic acid electrical insulation fluids and method of making the same |
Country Status (9)
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6398986B1 (en) | 1995-12-21 | 2002-06-04 | Cooper Industries, Inc | Food grade vegetable oil based dielectric fluid and methods of using same |
| US6037537A (en) * | 1995-12-21 | 2000-03-14 | Cooper Industries, Inc. | Vegetable oil based dielectric coolant |
| EP1304704B1 (en) * | 1995-12-21 | 2005-06-15 | Cooper Industries, Inc. | Vegetable oil based dielectric coolant |
| US6352655B1 (en) | 1995-12-21 | 2002-03-05 | Cooper Industries, Inc. | Vegetable oil based dielectric fluid |
| US6280659B1 (en) * | 1996-03-01 | 2001-08-28 | David W. Sundin | Vegetable seed oil insulating fluid |
| US6312623B1 (en) | 1996-06-18 | 2001-11-06 | Abb Power T&D Company Inc. | High oleic acid oil compositions and methods of making and electrical insulation fluids and devices comprising the same |
| US5949017A (en) * | 1996-06-18 | 1999-09-07 | Abb Power T&D Company Inc. | Electrical transformers containing electrical insulation fluids comprising high oleic acid oil compositions |
| AU772953B2 (en) * | 1997-01-06 | 2004-05-13 | Abb Inc. | High oleic acid electrical insulation fluids and devices containing the fluids |
| US6234343B1 (en) | 1999-03-26 | 2001-05-22 | Papp Enterprises, Llc | Automated portable medication radial dispensing apparatus and method |
| DE19934833A1 (de) | 1999-07-24 | 2001-01-25 | Bosch Gmbh Robert | Verfahren zur Steuerung eines Common-Rail-Einspritzsystems |
| EP1847584A3 (en) * | 2006-04-21 | 2008-10-22 | Infineum International Limited | Improvements in Biofuel |
| MX2013007697A (es) * | 2010-12-30 | 2013-07-29 | Union Carbide Chem Plastic | Metodo para eliminar impurezas de fluidos dielectricos a base de aceite de tipo ester natural. |
| WO2013052956A2 (en) | 2011-10-07 | 2013-04-11 | E. I. Du Pont De Nemours And Company | Liquid compositions used as insulating and heat transfer means, electrical devices containing said compositions and preparation methods for such compositions |
| JP6205422B2 (ja) * | 2012-10-18 | 2017-09-27 | ダウ グローバル テクノロジーズ エルエルシー | トリグリセリドベースの低粘度高引火点誘電性流体 |
| JP6175507B2 (ja) * | 2012-10-18 | 2017-08-02 | ダウ グローバル テクノロジーズ エルエルシー | オレイン酸及び中鎖長トリグリセリドベースの低粘度高引火点誘電性流体 |
| US11203730B2 (en) | 2017-04-24 | 2021-12-21 | Cargill, Incorporated | Wax compositions and dissipation factor |
| EP3615645A4 (en) | 2017-04-26 | 2021-01-27 | Cargill, Incorporated | WAX COMPOSITIONS AND SURFACE TENSION |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US323753A (en) * | 1885-08-04 | taylor | ||
| JPS5225298A (en) * | 1975-08-19 | 1977-02-25 | Nissin Electric Co Ltd | Treatment method of ester oil for electrical insulation |
| DE3201298A1 (de) * | 1981-12-18 | 1983-06-30 | Siemens AG, 1000 Berlin und 8000 München | Transformator mit kupferwicklungen |
| US4536331A (en) * | 1982-06-07 | 1985-08-20 | Emhart Industries, Inc. | Non-toxic impregnant for electrical capacitors |
| JPS6142816A (ja) * | 1984-08-06 | 1986-03-01 | ニチコン株式会社 | 電気絶縁油 |
| US4627192B1 (en) * | 1984-11-16 | 1995-10-17 | Sigco Res Inc | Sunflower products and methods for their production |
| DE3927155A1 (de) * | 1989-08-17 | 1991-02-21 | Henkel Kgaa | Umweltfreundliches grundoel fuer die formulierung von hydraulikoelen |
| US5260077A (en) * | 1991-02-12 | 1993-11-09 | The Lubrizol Corporation | Vegetable oil compositions |
| GB9109520D0 (en) * | 1991-05-02 | 1991-06-26 | Abb Capacitors Limited | Improvements in or relating to capacitors |
| US5336423A (en) * | 1992-05-05 | 1994-08-09 | The Lubrizol Corporation | Polymeric salts as dispersed particles in electrorheological fluids |
| US5429761A (en) * | 1994-04-14 | 1995-07-04 | The Lubrizol Corporation | Carbonated electrorheological particles |
| US5538654A (en) * | 1994-12-02 | 1996-07-23 | The Lubrizol Corporation | Environmental friendly food grade lubricants from edible triglycerides containing FDA approved additives |
| US6037537A (en) * | 1995-12-21 | 2000-03-14 | Cooper Industries, Inc. | Vegetable oil based dielectric coolant |
-
1997
- 1997-06-11 PT PT97932163T patent/PT912981E/pt unknown
- 1997-06-11 AT AT97932163T patent/ATE255269T1/de not_active IP Right Cessation
- 1997-06-11 JP JP10503104A patent/JP2000513038A/ja active Pending
- 1997-06-11 AU AU35692/97A patent/AU721761B2/en not_active Ceased
- 1997-06-11 DE DE69726427T patent/DE69726427T2/de not_active Expired - Lifetime
- 1997-06-11 WO PCT/US1997/010045 patent/WO1997049100A1/en active IP Right Grant
- 1997-06-11 EP EP97932163A patent/EP0912981B1/en not_active Expired - Lifetime
- 1997-06-11 CA CA002258248A patent/CA2258248C/en not_active Expired - Fee Related
- 1997-06-11 ES ES97932163T patent/ES2212117T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE255269T1 (de) | 2003-12-15 |
| EP0912981A4 (enrdf_load_stackoverflow) | 1999-05-26 |
| EP0912981B1 (en) | 2003-11-26 |
| AU3569297A (en) | 1998-01-07 |
| PT912981E (pt) | 2004-04-30 |
| EP0912981A1 (en) | 1999-05-06 |
| AU721761B2 (en) | 2000-07-13 |
| DE69726427T2 (de) | 2004-09-09 |
| ES2212117T3 (es) | 2004-07-16 |
| CA2258248A1 (en) | 1997-12-24 |
| JP2000513038A (ja) | 2000-10-03 |
| DE69726427D1 (de) | 2004-01-08 |
| WO1997049100A1 (en) | 1997-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150611 |