EP0365380B1 - Zusammensetzung, ihre Anwendung als elektrischer Isolator und Verfahren zu deren Herstellung - Google Patents
Zusammensetzung, ihre Anwendung als elektrischer Isolator und Verfahren zu deren Herstellung Download PDFInfo
- Publication number
- EP0365380B1 EP0365380B1 EP19890402631 EP89402631A EP0365380B1 EP 0365380 B1 EP0365380 B1 EP 0365380B1 EP 19890402631 EP19890402631 EP 19890402631 EP 89402631 A EP89402631 A EP 89402631A EP 0365380 B1 EP0365380 B1 EP 0365380B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- capacitors
- products
- hydroxybenzaldehyde
- tan
- 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 - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000000034 method Methods 0.000 title description 3
- 239000003989 dielectric material Substances 0.000 title description 2
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 12
- CBOQJANXLMLOSS-UHFFFAOYSA-N ethyl vanillin Chemical compound CCOC1=CC(C=O)=CC=C1O CBOQJANXLMLOSS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000001299 aldehydes Chemical group 0.000 claims abstract description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- 239000010735 electrical insulating oil Substances 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- JVTZFYYHCGSXJV-UHFFFAOYSA-N isovanillin Chemical compound COC1=CC=C(C=O)C=C1O JVTZFYYHCGSXJV-UHFFFAOYSA-N 0.000 claims 2
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 claims 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 claims 1
- QWUWMCYKGHVNAV-UHFFFAOYSA-N 1,2-dihydrostilbene Chemical compound C=1C=CC=CC=1CCC1=CC=CC=C1 QWUWMCYKGHVNAV-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 22
- 230000032683 aging Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- GNPWYHFXSMINJQ-UHFFFAOYSA-N 1,2-dimethyl-3-(1-phenylethyl)benzene Chemical compound C=1C=CC(C)=C(C)C=1C(C)C1=CC=CC=C1 GNPWYHFXSMINJQ-UHFFFAOYSA-N 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- -1 polydiméthylsiloxane Polymers 0.000 description 3
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 2
- 125000005498 phthalate group Chemical group 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- IAUKWGFWINVWKS-UHFFFAOYSA-N 1,2-di(propan-2-yl)naphthalene Chemical compound C1=CC=CC2=C(C(C)C)C(C(C)C)=CC=C21 IAUKWGFWINVWKS-UHFFFAOYSA-N 0.000 description 1
- PKQYSCBUFZOAPE-UHFFFAOYSA-N 1,2-dibenzyl-3-methylbenzene Chemical compound C=1C=CC=CC=1CC=1C(C)=CC=CC=1CC1=CC=CC=C1 PKQYSCBUFZOAPE-UHFFFAOYSA-N 0.000 description 1
- GDPISEKNRFFKMM-UHFFFAOYSA-N 1,3-diphenylpropan-2-ylbenzene Chemical compound C=1C=CC=CC=1CC(C=1C=CC=CC=1)CC1=CC=CC=C1 GDPISEKNRFFKMM-UHFFFAOYSA-N 0.000 description 1
- HKTCLPBBJDIBGF-UHFFFAOYSA-N 1-phenyl-2-propan-2-ylbenzene Chemical group CC(C)C1=CC=CC=C1C1=CC=CC=C1 HKTCLPBBJDIBGF-UHFFFAOYSA-N 0.000 description 1
- 239000004803 Di-2ethylhexylphthalate Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical group 0.000 description 1
- 150000001336 alkenes Chemical group 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- KWKXNDCHNDYVRT-UHFFFAOYSA-N dodecylbenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1 KWKXNDCHNDYVRT-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 101150093826 par1 gene Proteins 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- CRHIAMBJMSSNNM-UHFFFAOYSA-N tetraphenylstannane Chemical compound C1=CC=CC=C1[Sn](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 CRHIAMBJMSSNNM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
- B41M5/1655—Solvents
-
- 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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/24—Aldehydes; Ketones
-
- 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
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/08—Aldehydes; Ketones
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
-
- 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
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/02—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only
- C10M2211/024—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only aromatic
-
- 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
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/06—Perfluorinated compounds
-
- 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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/16—Dielectric; Insulating oil or insulators
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/17—Electric or magnetic purposes for electric contacts
Definitions
- the present invention relates to a new composition, its application as an electrical insulator and as a solvent for carbonless copying paper.
- the invention relates more particularly to insulating oils which are used in transformers and electric capacitors. Such oils are described, for example, in European patent EP 8251 and in US patent 4,523,044.
- the Applicant has unexpectedly discovered that the dielectric properties of these insulating oils can be greatly improved when certain products are added in small proportion.
- the present invention is a composition comprising at least one electrical insulating oil (A) and at least one product (B) having at least 6 carbon atoms, carrying an aldehyde function and having at most two OH groups.
- Electrical insulating oil designates all products which can be used in electrical transformers and capacitors. These are liquid products at operating temperatures, i.e. between -40 and 100 ° C or as soon as the temperature exceeds a value between ambient and 100 ° C. These products have a resistivity at least equal to 1010 ⁇ cm and preferably greater than 1012 ⁇ cm.
- the product (A) can also be a mixture of at least any two of the products mentioned above. All these products are purified for example on absorbers or on land, and optionally degassed to obtain sufficient resistivity.
- the invention is particularly useful for the products described in US Pat. No. 4,523,044 which are compositions of polyarylalkane oligomers consisting of the mixture of two oligomers A and B.
- the invention also applies in particular to the liquid dielectrics described in EP 8251 of formula: where n and y have the value 1 or 2 which can be mixed with one or more products of general formula: where a varies from 2 to 4, b varies from 0 to 2, and R is an aliphatic hydrocarbon radical containing from 1 to 3 carbon atoms, this mixture being added with an acid acceptor of the epoxidized oil or tetraphenyltin type in quantity between 0.001 and 10% and preferably from 0.01 to 0.3%.
- the product (B) can be chosen from products having at least 6 carbon atoms and carrying an aldehyde function. It can also carry other functions but not more than two OH groups. We use for example:
- the product (B) contains at least one phenyl, for example:
- the proportion of (B) can be included within wide limits.
- the amount of (B) is such that it can represent up to 1 to 5% by weight of the mixture of (A) and (B).
- the amount of (B), expressed on the same basis is between 50 and 1000 ppm.
- the product (B) can also be a mixture of at least two products having 6 carbon atoms and carrying an aldehyde function, one of these products may or may not contain a phenyl.
- composition according to the invention may contain antioxidants, epoxides and other additives customary in dielectric liquids.
- the present invention also relates to the process for the preparation of these compositions.
- the present invention also relates to the application of this composition in transformers and electrical capacitors.
- composition according to the invention can be used as a solvent for manufacturing pressure-sensitive recording materials such as carbonless copying paper.
- pressure-sensitive recording materials such as carbonless copying paper.
- Such techniques are described for example in the patents FR 2 257 432 (NCR), GB 1 346 364 (FUJI) and FR 2 157 587 (Monsanto).
- the angle of loss (tan-delta) is one of the important characteristics of a dielectric liquid. It characterizes the electrical conduction of the liquid and must be as low as possible.
- the increase in the tan-delta during this test is generally due to the appearance of ionic products of oxidation of the liquid (or its impurities).
- the tests consist in manufacturing and impregnating models of capacitors and in subjecting these models to accelerated aging (high voltages and temperatures).
- the main sanction of the test is the number of capacitors which are deteriorated (breakdowns) during the test.
- two series of 10 capacitors were made, comprising 2 films of smooth polypropylene 12 ⁇ m thick (24 ⁇ m in total) and a layer of kraft paper, 12 ⁇ m thick, located between the two films.
- the paper has a density of 1.0.
- the two series of 10 capacitors were impregnated using A1 and A1 + 200 ppm of B1 respectively.
- the capacitance and tan-delta values of the capacitors at the temperature of 85 ° C. were measured, under the voltage of 1000 AC.
- the capacitors were then subjected to aging at 85 ° C at 2700 V (75.0 V / ⁇ m) for 535 hours.
- the tan-delta of all the remaining capacitors was measured as a function of the voltage at the temperature of 85 ° C.
- the Tan-delta of the group of A1 capacitors comprising aldehyde B1 is significantly lower than that of the reference group A1 without this additive. (Reminder: the result is all the more favorable the lower the tan-delta).
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Physics & Mathematics (AREA)
- Organic Insulating Materials (AREA)
- Lubricants (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Inorganic Insulating Materials (AREA)
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89402631T ATE75248T1 (de) | 1988-09-30 | 1989-09-26 | Zusammensetzung, ihre anwendung als elektrischer isolator und verfahren zu deren herstellung. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8812843 | 1988-09-30 | ||
FR8812843A FR2637291B1 (fr) | 1988-09-30 | 1988-09-30 | Nouvelle composition, son application comme isolant electrique et son procede de fabrication |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0365380A1 EP0365380A1 (de) | 1990-04-25 |
EP0365380B1 true EP0365380B1 (de) | 1992-04-22 |
Family
ID=9370584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890402631 Expired - Lifetime EP0365380B1 (de) | 1988-09-30 | 1989-09-26 | Zusammensetzung, ihre Anwendung als elektrischer Isolator und Verfahren zu deren Herstellung |
Country Status (13)
Country | Link |
---|---|
US (1) | US5014033A (de) |
EP (1) | EP0365380B1 (de) |
JP (1) | JPH07107804B2 (de) |
KR (1) | KR910008567B1 (de) |
AT (1) | ATE75248T1 (de) |
CA (1) | CA1334787C (de) |
DE (1) | DE68901331D1 (de) |
DK (1) | DK173771B1 (de) |
ES (1) | ES2031380T3 (de) |
FR (1) | FR2637291B1 (de) |
GR (1) | GR3005143T3 (de) |
IE (1) | IE61206B1 (de) |
PT (1) | PT91860B (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5349493A (en) * | 1992-12-18 | 1994-09-20 | Aerovox Incorporated | Electrical capacitor |
SE511380C2 (sv) * | 1997-02-06 | 1999-09-20 | Abb Research Ltd | Tensidtillsats vid förfarande för impregnering av ett poröst material samt användning av förfarandet vid impregnering av pappersisolering |
US6572847B2 (en) | 2000-03-31 | 2003-06-03 | The Lubrizol Corporation | Elimination of odors from lubricants by use of a combination of thiazoles and odor masks |
JP5814637B2 (ja) * | 2011-06-07 | 2015-11-17 | Jx日鉱日石エネルギー株式会社 | 低温特性に優れた電気絶縁油組成物 |
KR102285947B1 (ko) * | 2020-02-26 | 2021-08-03 | 장윤근 | 거푸집 서포터의 수평보강재 |
KR102393222B1 (ko) * | 2020-11-18 | 2022-04-29 | 장윤근 | 거푸집 서포트 가로 연결장치 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB777811A (en) * | 1954-09-10 | 1957-06-26 | Eastman Kodak Co | Improvement in the stabilization of organic materials |
FR2124184B1 (de) * | 1971-02-05 | 1975-01-17 | Rhone Progil | |
US3928705A (en) * | 1971-04-15 | 1975-12-23 | Celanese Corp | Dielectric insulation employing open-celled microporous film |
DE2352450C2 (de) * | 1973-10-19 | 1982-05-13 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Stabilisiertes Isoliermaterial auf Polyolefinbasis, insbesondere auf Basis eines vernetzten Polyäthylens |
US4276184A (en) * | 1974-08-30 | 1981-06-30 | Westinghouse Electric Corp. | Dielectric fluids comprising non-halogenated mixtures of organic esters and aromatic compounds |
US4018693A (en) * | 1974-10-21 | 1977-04-19 | Texaco Inc. | Transformer oils |
DE2965775D1 (en) * | 1978-12-13 | 1983-07-28 | Monsanto Europe Sa | Pressure-sensitive mark-recording systems and solutions for use in such systems |
JPS5698255A (en) * | 1980-01-08 | 1981-08-07 | Toshiba Corp | Epoxy resin composition for impregnation |
US4347169A (en) * | 1980-06-30 | 1982-08-31 | Nippon Petrochemicals Company, Limited | Electrical insulating oil and oil-filled electrical appliances |
US4401871A (en) * | 1981-01-14 | 1983-08-30 | Imperial Chemical Industries Plc | Halogenated hydrocarbon compositions and electrical apparatus containing such compositions |
JPH0640442B2 (ja) * | 1983-12-30 | 1994-05-25 | 日本石油化学株式会社 | 新規な電気絶縁油 |
JPS60146405A (ja) * | 1983-12-30 | 1985-08-02 | 日石三菱株式会社 | 精製された電気絶縁油および油含浸電気機器 |
US4679119A (en) * | 1986-06-13 | 1987-07-07 | Emhart Industries, Inc. | Dielectric fluid for electrical capacitors |
-
1988
- 1988-09-30 FR FR8812843A patent/FR2637291B1/fr not_active Expired - Fee Related
-
1989
- 1989-09-15 CA CA000611621A patent/CA1334787C/fr not_active Expired - Fee Related
- 1989-09-26 EP EP19890402631 patent/EP0365380B1/de not_active Expired - Lifetime
- 1989-09-26 ES ES198989402631T patent/ES2031380T3/es not_active Expired - Lifetime
- 1989-09-26 AT AT89402631T patent/ATE75248T1/de not_active IP Right Cessation
- 1989-09-26 DE DE8989402631T patent/DE68901331D1/de not_active Expired - Lifetime
- 1989-09-27 US US07/413,189 patent/US5014033A/en not_active Expired - Lifetime
- 1989-09-28 KR KR1019890013962A patent/KR910008567B1/ko not_active IP Right Cessation
- 1989-09-28 JP JP1253735A patent/JPH07107804B2/ja not_active Expired - Lifetime
- 1989-09-29 IE IE313489A patent/IE61206B1/en not_active IP Right Cessation
- 1989-09-29 PT PT91860A patent/PT91860B/pt not_active IP Right Cessation
- 1989-09-29 DK DK198904810A patent/DK173771B1/da not_active IP Right Cessation
-
1992
- 1992-07-13 GR GR920401486T patent/GR3005143T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
IE61206B1 (en) | 1994-10-19 |
GR3005143T3 (de) | 1993-05-24 |
FR2637291B1 (fr) | 1993-04-23 |
DK481089A (da) | 1990-03-31 |
JPH02148611A (ja) | 1990-06-07 |
CA1334787C (fr) | 1995-03-21 |
DK481089D0 (da) | 1989-09-29 |
ATE75248T1 (de) | 1992-05-15 |
KR910008567B1 (ko) | 1991-10-19 |
DK173771B1 (da) | 2001-09-24 |
JPH07107804B2 (ja) | 1995-11-15 |
IE893134L (en) | 1990-03-30 |
KR900004921A (ko) | 1990-04-13 |
PT91860B (pt) | 1995-07-06 |
US5014033A (en) | 1991-05-07 |
PT91860A (pt) | 1990-03-30 |
ES2031380T3 (es) | 1992-12-01 |
FR2637291A1 (fr) | 1990-04-06 |
DE68901331D1 (de) | 1992-05-27 |
EP0365380A1 (de) | 1990-04-25 |
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