EP1059643A1 - Composition dielectrique ayant une absorption de gaz amelioree - Google Patents
Composition dielectrique ayant une absorption de gaz amelioree Download PDFInfo
- Publication number
- EP1059643A1 EP1059643A1 EP00401546A EP00401546A EP1059643A1 EP 1059643 A1 EP1059643 A1 EP 1059643A1 EP 00401546 A EP00401546 A EP 00401546A EP 00401546 A EP00401546 A EP 00401546A EP 1059643 A1 EP1059643 A1 EP 1059643A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixture
- formula
- isomers
- products
- compositions
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 91
- 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 claims abstract description 20
- 239000002480 mineral oil Substances 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 7
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- QWUWMCYKGHVNAV-UHFFFAOYSA-N 1,2-dihydrostilbene Chemical class C=1C=CC=CC=1CCC1=CC=CC=C1 QWUWMCYKGHVNAV-UHFFFAOYSA-N 0.000 claims description 2
- GDPISEKNRFFKMM-UHFFFAOYSA-N 1,3-diphenylpropan-2-ylbenzene Chemical class C=1C=CC=CC=1CC(C=1C=CC=CC=1)CC1=CC=CC=C1 GDPISEKNRFFKMM-UHFFFAOYSA-N 0.000 claims description 2
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003921 oil Substances 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 23
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- 239000007789 gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 6
- 239000008096 xylene Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000006178 methyl benzyl group Chemical group 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- GTLWADFFABIGAE-UHFFFAOYSA-N 1-chloroethylbenzene Chemical compound CC(Cl)C1=CC=CC=C1 GTLWADFFABIGAE-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 150000001923 cyclic compounds Chemical class 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 231100000926 not very toxic Toxicity 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- -1 transformers Substances 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
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
-
- 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
- H01B3/22—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 hydrocarbons
Definitions
- the present invention relates to a dielectric composition with mineral oil base for electrical equipment with absorption of improved gas.
- Mineral oils are widely used as oils insulators in various electrical materials such as transformers, capacitors, and cables.
- mineral oils include natural compounds different such as paraffin chains, cyclic compounds saturated naphthenic, aromatic structures whose polyaromatic condensed.
- Aromatic compounds give mineral oils better dielectric properties such as better breakdown voltage or so-called gassing properties.
- the absorption of gas is characteristic of the behavior of a oil under high electric field.
- the oil can either produce more gas in which case, it is called “gas-evolving” (gas producer), or absorb hydrogen, it is then called “gas-absorbing” (absorber of gas).
- Condensed polyaromatics are diverse and varied in nature, but most are considered carcinogenic. Also, in order to reduce the polyaromatic content in mineral oils, these undergo hydrogenation treatment. This treatment however has the disadvantage of making others disappear completely aromatic considered as not very toxic.
- the Applicant has found that the use of small amounts of compounds of the polyarylalkane family made it possible to improve the gas absorption property of mineral oils.
- the compositions (I) can contain product (A) with 2 rings, (methylbenzyl) xylene, and product (A) with 3 rings which is designated by bis (methylbenzyl) xylene.
- compositions (I) usable according to the present invention mention will be made of the polyarylalkane composition sold by ELF ATOCHEM S.A. under the designation JARISOL XX having a content by weight of compounds with 2 and 3 aromatic rings greater than 99%.
- compositions can be obtained by methods described in patents EP 136 230-B1, EP 299 867-B1, EP 384 818-B1, EP 500 435-B1 incorporated into the present invention, by references, which consist of chlorinating toluene or xylene then to perform a Friedel and Crafts type condensation either on toluene, either on xylene (mixture of isomers), or on a toluene and xylene mixture, either on benzene or on a mixture benzene and toluene.
- the reaction is finished, the or reagents not transformed by distillation then the crude product can be subjected to a dechlorination treatment as described in the patent EP 306 398-B1.
- compositions (II) can be obtained by a process described in patent EP 136 230-B1 which consists, in a first step, in reacting chlorine on toluene by radical reaction in the presence of free radical generator at a temperature between 50 ° C and 110 ° C then in a second step, the reaction product from the first step is subjected to a condensation reaction with toluene in the presence of FeCl 3 at a temperature between 50 ° C and 100 ° C.
- compositions (I) can be obtained according to a process described in patent EP 0 50 435-B1 which consists in carrying out the condensation of (methyl) benzyl chloride with xylene in the presence of FeCl 3 .
- the dielectric compositions according to the invention have the advantage of having improved gas behavior (improved gassing).
- the interface between a column of liquid and a volume of hydrogen is subjected to electrical discharges between 2 electrodes placed at different potentials.
- the evolution of the gas volume is monitored as a function of time.
- the gassing expressed in ⁇ l / min, is positive if gas is released and is negative if gas is absorbed.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Lubricants (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
- les compositions (I) comprenant un mélange de produits de formule (A) : dans laquelle n1 et n2 = 0 ou 1 qui contient des produits (A) tels que n1 + n2 = 0 et des produits (A) tels que n1 + n2 = 1 et de produits de formule (B) :
- les compositions (II) comprenant un mélange de deux produits (C) et
(D) dans lequel :
- le produit (C) est un mélange d'isomères de formule : avec p1 et p2 = 0,1 et 2, sachant que p1 + p2 ≤ 3, et
- le produit (D) est un mélange d'isomères de formule :
avec
p'1, p"1 et p4 = 0,1 et 2
P'2, p"2, p3 et p5 = 0 et 1 sachant que p'1 + p"1 + p'2 + p"2 + p3 + p'3 + p4 + p5 ≤ 2.
- les compositions (III) comprenant un mélange de deux produits (A1) et
(A2), tels que :
- le produit (A1) est un mélange d'isomères de formule : avec m1 et m2 = 0, 1 ou 2 sachant que m1 + m2 ≤ 3,
- le produit (A2) est un mélange d'isomères de formule :
avec q1 et q2 = 0, 1 ou 2 sachant que q1 + q2 ≤ 3,
l'un au moins des composés (A1) et (A2) comprenant un isomère ayant trois noyaux benzéniques.
- les compositions (IV) comprenant les deux produits (A1) et (A2) et, en
outre, au moins un composé choisi parmi les produits (E1), (E2) ou (E3)
suivants :
- (E1) est un isomère ou un mélange d'isomères de formule :
avec
r'1, r"1 et r4 = 0, 1 ou 2
r'2, r"2, r3, r'3 et r5 = 0 et 1
sachant que r'1 + r"1 + r'2 + r"2 + r3 + r'3 + r4 + r5 est inférieur ou égal à 2.
R1 et R2 représentent un atome d'hydrogène. - (E2) est un isomère ou un mélange d'isomères de même formule générale que (E1), sauf que R1 et R2 représentent un méthyle et les coefficients r sont remplacés par s et ont la même signification.
- (E3) est un isomère ou un mélange d'isomères de même formule générale que (E1), sauf que R1 et R2 sont différents et représentent un atome d'hydrogène ou un radical méthyle et les coefficients r sont remplacés par t et ont la même signification.
- (E1) est un isomère ou un mélange d'isomères de formule :
avec
| COMPOSITION (% EN POIDS) | GASSING | |
| Huile minérale | XX | EN µl/min |
| 100 % | - | + 5,4 : |
| 98 % | 2 % | - 5 |
| 95 % | 5 % | - 12,8 |
| 90 % | 10 % | - 22,7 |
Claims (4)
- Composition diélectrique pour appareils électriques, caractérisée en ce qu'elle comprend de 99 % à 70 % en poids d'une huile minérale et de 1 % à 30 % en poids d'au moins une composition de polyarylalcanes choisie parmi :les compositions (I) comprenant un mélange de produits de formule (A) : dans laquelle n1 et n2 = 0 ou 1 qui contient des produits (A) tels que n1 + n2 = 0 et des produits (A) tels que n1 + n2 = 1 ; et de produits de formule (B) :les compositions (II) comprenant un mélange de deux produits (C) et (D) dans lequel :les compositions (III) comprenant un mélange de deux produits (A1) et (A2), tels que :le produit (A1) est un mélange d'isomères de formule : avec m1 et m2 = 0, 1 ou 2 sachant que m1 + m2 ≤ 3,les compositions (IV) comprenant les deux produits (A1) et (A2) et, en outre, au moins un composé choisi parmi les produits (E1), (E2) ou (E3) suivants :(E1) est un isomère ou un mélange d'isomères de formule : avec
r'1, r"1 et r4 = 0, 1 ou 2
r'2, r"2, r3, r'3 et r5 = 0 et 1
sachant que r'1 + r"1 + r'2 + r"2 + r3 + r'3 + r4 + r5 est inférieur ou égal à 2.
R1 et R2 représentent un atome d'hydrogène.(E2) est un isomère ou un mélange d'isomères de même formule générale que (E1), sauf que R1 et R2 représentent un méthyle et les coefficients r sont remplacés par s et ont la même signification.(E3) est un isomère ou un mélange d'isomères de même formule générale que (E1), sauf que R1 et R2 sont différents et représentent un atome d'hydrogène ou un radical méthyle et les coefficients r sont remplacés par t et ont la même signification. - Composition selon la revendication 1, caractérisée en ce que les compositions (I) ont une teneur pondérale en composés à 2 et 3 noyaux aromatiques supérieure à 99 %.
- Composition selon la revendication 1 caractérisée en ce que les compositions (II) sont constituées essentiellement par 70 % à 80 % en poids d'un mélange d'isomères de benzyltoluène (produit (C), p1 = p2 = 0) et par 20 % à 30 % en poids d'isomères de dibenzyltoluène (produit (C) ; p1 = 1, p2 = 0 ou p1 = 0, p2 = 1) et d'isomères du ditolylphénylméthane (produit (D)).
- Composition selon l'une des revendications 1 à 3, caractérisée en ce qu'elle comprend de 99 % à 80 % en poids d'une huile minérale et de 1 % à 20 % en poids d'au moins une composition de polyarylalcanes choisie parmi les compositions (I), (II), (III) ou (IV).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9907143 | 1999-06-07 | ||
| FR9907143A FR2794566B1 (fr) | 1999-06-07 | 1999-06-07 | Composition dielectrique ayant une absorption de gaz amelioree |
| FR0001880A FR2794567A1 (fr) | 1999-06-07 | 2000-02-16 | Composition dielectrique ayant une absorption de gaz amelioree |
| FR0001880 | 2000-02-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1059643A1 true EP1059643A1 (fr) | 2000-12-13 |
| EP1059643B1 EP1059643B1 (fr) | 2003-07-09 |
Family
ID=26212178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00401546A Expired - Lifetime EP1059643B1 (fr) | 1999-06-07 | 2000-05-31 | Composition dielectrique ayant une absorption de gaz amelioree |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6391228B1 (fr) |
| EP (1) | EP1059643B1 (fr) |
| JP (2) | JP3545993B2 (fr) |
| KR (1) | KR100375357B1 (fr) |
| CN (1) | CN1144844C (fr) |
| AT (1) | ATE244921T1 (fr) |
| CA (1) | CA2311250C (fr) |
| DE (1) | DE60003757T2 (fr) |
| DK (1) | DK1059643T3 (fr) |
| ES (1) | ES2203405T3 (fr) |
| FR (1) | FR2794567A1 (fr) |
| NO (1) | NO20002877L (fr) |
| TW (1) | TWI257383B (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9051419B2 (en) * | 2002-06-14 | 2015-06-09 | Richard H. Hall | Polymer |
| US7531083B2 (en) * | 2004-11-08 | 2009-05-12 | Shell Oil Company | Cycloalkane base oils, cycloalkane-base dielectric liquids made using cycloalkane base oils, and methods of making same |
| US20060100466A1 (en) * | 2004-11-08 | 2006-05-11 | Holmes Steven A | Cycloalkane base oils, cycloalkane-base dielectric liquids made using cycloalkane base oils, and methods of making same |
| BR112013011987A2 (pt) * | 2010-11-25 | 2016-08-30 | Prysmian Spa | cabo |
| FR3008708B1 (fr) * | 2013-07-19 | 2016-09-23 | Arkema France | Composition de fluide dielectrique ou caloporteur |
| CN106675733A (zh) * | 2017-01-05 | 2017-05-17 | 广东美商工业材料有限公司 | 一种应用于油浸式电容的电容油及其制备方法 |
| FR3078711B1 (fr) * | 2018-03-08 | 2020-07-31 | Arkema France | Utilisation d'un melange en tant que fluide dielectrique |
| FR3101477B1 (fr) * | 2019-10-01 | 2021-09-24 | Arkema France | Augmentation de la puissance d’un transformateur |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1579679A (en) * | 1976-07-16 | 1980-11-19 | British Petroleum Co | Electro-erosion process using dielectric liquids |
| EP0443899A1 (fr) * | 1990-02-20 | 1991-08-28 | Elf Atochem S.A. | Procédé de synthèse d'oligomÀ¨res de (méthylbenzyl)xylène et leur application comme diélectrique |
| EP0444989A1 (fr) * | 1990-02-27 | 1991-09-04 | Elf Atochem S.A. | Compositions diélectriques à base de benzyltoluène et de (méthylbenzyl)xylène |
| EP0446086A1 (fr) * | 1990-02-27 | 1991-09-11 | Elf Atochem S.A. | Composition à base de dérivés méthyles et benzyles du diphénylméthane, son application comme diélectrique |
| EP0544571A1 (fr) * | 1991-11-26 | 1993-06-02 | Elf Atochem S.A. | Composition à base de benzyltoluènes et de benzylxylènes, son application comme diélectrique |
| EP0704861A1 (fr) * | 1994-09-30 | 1996-04-03 | Elf Atochem S.A. | Composition diélectrique à base de polyarylalcanes ayant des propriétés diélectriques améliorées |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4914320B1 (fr) * | 1969-03-31 | 1974-04-06 | ||
| JPS553762B2 (fr) * | 1973-07-11 | 1980-01-26 | ||
| JPS5078899A (fr) * | 1973-11-16 | 1975-06-26 | ||
| JPS5086699A (fr) * | 1973-12-06 | 1975-07-12 | ||
| JPS5086698A (fr) * | 1973-12-06 | 1975-07-12 | ||
| JPS5086700A (fr) * | 1973-12-06 | 1975-07-12 | ||
| US4189391A (en) | 1976-05-01 | 1980-02-19 | Nippon Oil Co., Ltd. | Electrical insulating oil compositions |
| FR2552423B1 (fr) * | 1983-09-23 | 1985-10-25 | Ugine Kuhlmann | Compositions d'oligomeres de polyarylalcanes et leur procede de fabrication |
| GR850003B (fr) * | 1984-07-11 | 1985-05-06 | Siemens Ag | |
| FR2643366B1 (fr) * | 1989-02-20 | 1991-09-06 | Atochem | Compositions a base de polyphenylmethanes, leur procede de fabrication et leur application comme dielectrique |
| AU4427493A (en) * | 1992-08-03 | 1994-02-10 | Becton Dickinson & Company | Solid phase assay |
| KR101579679B1 (ko) * | 2014-04-22 | 2015-12-22 | 한밭대학교 산학협력단 | 수직형 페럴린 성막 노즐장치 |
-
2000
- 2000-02-16 FR FR0001880A patent/FR2794567A1/fr active Pending
- 2000-05-31 AT AT00401546T patent/ATE244921T1/de not_active IP Right Cessation
- 2000-05-31 DK DK00401546T patent/DK1059643T3/da active
- 2000-05-31 EP EP00401546A patent/EP1059643B1/fr not_active Expired - Lifetime
- 2000-05-31 DE DE60003757T patent/DE60003757T2/de not_active Expired - Lifetime
- 2000-05-31 ES ES00401546T patent/ES2203405T3/es not_active Expired - Lifetime
- 2000-06-06 NO NO20002877A patent/NO20002877L/no unknown
- 2000-06-06 CA CA002311250A patent/CA2311250C/fr not_active Expired - Lifetime
- 2000-06-06 JP JP2000169594A patent/JP3545993B2/ja not_active Expired - Fee Related
- 2000-06-07 CN CNB001217577A patent/CN1144844C/zh not_active Expired - Lifetime
- 2000-06-07 KR KR10-2000-0031061A patent/KR100375357B1/ko not_active Expired - Fee Related
- 2000-06-07 US US09/588,647 patent/US6391228B1/en not_active Expired - Lifetime
- 2000-11-02 TW TW089111062A patent/TWI257383B/zh not_active IP Right Cessation
-
2004
- 2004-02-20 JP JP2004044334A patent/JP2004143468A/ja active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1579679A (en) * | 1976-07-16 | 1980-11-19 | British Petroleum Co | Electro-erosion process using dielectric liquids |
| EP0443899A1 (fr) * | 1990-02-20 | 1991-08-28 | Elf Atochem S.A. | Procédé de synthèse d'oligomÀ¨res de (méthylbenzyl)xylène et leur application comme diélectrique |
| EP0444989A1 (fr) * | 1990-02-27 | 1991-09-04 | Elf Atochem S.A. | Compositions diélectriques à base de benzyltoluène et de (méthylbenzyl)xylène |
| EP0446086A1 (fr) * | 1990-02-27 | 1991-09-11 | Elf Atochem S.A. | Composition à base de dérivés méthyles et benzyles du diphénylméthane, son application comme diélectrique |
| EP0544571A1 (fr) * | 1991-11-26 | 1993-06-02 | Elf Atochem S.A. | Composition à base de benzyltoluènes et de benzylxylènes, son application comme diélectrique |
| EP0704861A1 (fr) * | 1994-09-30 | 1996-04-03 | Elf Atochem S.A. | Composition diélectrique à base de polyarylalcanes ayant des propriétés diélectriques améliorées |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1144844C (zh) | 2004-04-07 |
| US6391228B1 (en) | 2002-05-21 |
| KR100375357B1 (ko) | 2003-03-08 |
| JP3545993B2 (ja) | 2004-07-21 |
| JP2004143468A (ja) | 2004-05-20 |
| DE60003757D1 (de) | 2003-08-14 |
| TWI257383B (en) | 2006-07-01 |
| EP1059643B1 (fr) | 2003-07-09 |
| ES2203405T3 (es) | 2004-04-16 |
| JP2001055596A (ja) | 2001-02-27 |
| KR20010007272A (ko) | 2001-01-26 |
| CA2311250C (fr) | 2007-10-30 |
| CN1292402A (zh) | 2001-04-25 |
| DK1059643T3 (da) | 2003-11-03 |
| NO20002877L (no) | 2000-12-08 |
| CA2311250A1 (fr) | 2000-12-07 |
| ATE244921T1 (de) | 2003-07-15 |
| DE60003757T2 (de) | 2004-05-27 |
| NO20002877D0 (no) | 2000-06-06 |
| FR2794567A1 (fr) | 2000-12-08 |
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