GB1235885A - Dielectric media - Google Patents
Dielectric mediaInfo
- Publication number
- GB1235885A GB1235885A GB3795668A GB3795668A GB1235885A GB 1235885 A GB1235885 A GB 1235885A GB 3795668 A GB3795668 A GB 3795668A GB 3795668 A GB3795668 A GB 3795668A GB 1235885 A GB1235885 A GB 1235885A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impregnant
- adsorbent
- paper base
- chlorinated
- epoxy
- 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
Links
- 239000003463 adsorbent Substances 0.000 abstract 4
- 239000000123 paper Substances 0.000 abstract 4
- 239000004593 Epoxy Substances 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 2
- 150000004706 metal oxides Chemical class 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 abstract 2
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 abstract 2
- 239000003381 stabilizer Substances 0.000 abstract 2
- LCFVJGUPQDGYKZ-UHFFFAOYSA-N Bisphenol A diglycidyl ether Chemical compound C=1C=C(OCC2OC2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 LCFVJGUPQDGYKZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 235000010469 Glycine max Nutrition 0.000 abstract 1
- 244000068988 Glycine max Species 0.000 abstract 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 125000003545 alkoxy group Chemical group 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 150000001399 aluminium compounds Chemical class 0.000 abstract 1
- 229940077746 antacid containing aluminium compound Drugs 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 229960000892 attapulgite Drugs 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract 1
- 125000006267 biphenyl group Chemical group 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 abstract 1
- 125000003700 epoxy group Chemical group 0.000 abstract 1
- 229910000286 fullers earth Inorganic materials 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052622 kaolinite Inorganic materials 0.000 abstract 1
- 239000002655 kraft paper Substances 0.000 abstract 1
- 229910000000 metal hydroxide Inorganic materials 0.000 abstract 1
- 150000004692 metal hydroxides Chemical class 0.000 abstract 1
- 229910052914 metal silicate Inorganic materials 0.000 abstract 1
- 125000001624 naphthyl group Chemical group 0.000 abstract 1
- 229910052625 palygorskite Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 125000005415 substituted alkoxy group Chemical group 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
- H01G4/22—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated
- H01G4/221—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated characterised by the composition of the impregnant
- H01G4/222—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated characterised by the composition of the impregnant halogenated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
- H01G4/22—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Organic Insulating Materials (AREA)
- Paper (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
1,235,885. Paper. WEYERHAEUSER CO. 8 Aug., 1968 [15 Aug., 1967], No. 37956/68. Heading D2B. A dielectric medium comprises a cellulosic paper base having incorporated therein at least one inorganic adsorbent which is an activated metal hydroxide, metal oxide, hydrated metal oxide or silicate of aluminium, a liquid halogenated alkyl, aryl or polynuclear hydrocarbon or mixtures thereof as impregnants which are capable of improving the dielectric properties of the paper base and a stabiliser for the impregnant said adsorbent having an average particle size of up to 2-0 microns and said stabiliser containing the epoxy group The adsorbents are preferably aluminium compounds and the paper base is preferably kraft tissue. The liquid impregnant is preferably chlorinated naphthalene, chlorinated diphenyl, chlorinated benzene or derivatives or mixtures thereof. The adsorbent is preferably in an amount of from 0.1 to 10% by weight of cellulose and may be kaolinite, bentonite, attapulgite or fullers earth. The epoxy compound preferably has the formula: where R and R' which may be the same or different represent hydrogen, alkyl, alkoxy, substituted alkoxy, phenoxy or substituted phenoxy e.g. 4, 4'-bis (2, 3-epoxy propoxy) diphenyldimethylmethane, epoxidised natural unsaturated oils containing no residual saturation e.g. soyabean oil, or glycidyl ether. The epoxy compound may be present in an amount ranging from 0.001 to 5.0% by weight of the impregnant.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66058067A | 1967-08-15 | 1967-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1235885A true GB1235885A (en) | 1971-06-16 |
Family
ID=24650104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3795668A Expired GB1235885A (en) | 1967-08-15 | 1968-08-08 | Dielectric media |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE719454A (en) |
| CH (1) | CH508971A (en) |
| DE (1) | DE1765875A1 (en) |
| FR (1) | FR1576961A (en) |
| GB (1) | GB1235885A (en) |
| NL (1) | NL6811572A (en) |
| SE (1) | SE341208B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN139569B (en) | 1972-08-16 | 1976-07-03 | Gen Electric | |
| DE2365649A1 (en) * | 1972-08-16 | 1975-10-30 | Gen Electric | Stabilised dielectric - contg dioctylphthalate with epoxide additive |
-
1968
- 1968-07-31 DE DE19681765875 patent/DE1765875A1/en active Pending
- 1968-08-08 GB GB3795668A patent/GB1235885A/en not_active Expired
- 1968-08-14 CH CH1221068A patent/CH508971A/en unknown
- 1968-08-14 FR FR1576961D patent/FR1576961A/fr not_active Expired
- 1968-08-14 NL NL6811572A patent/NL6811572A/xx unknown
- 1968-08-14 BE BE719454D patent/BE719454A/xx unknown
- 1968-08-14 SE SE1096968A patent/SE341208B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE341208B (en) | 1971-12-20 |
| NL6811572A (en) | 1969-02-18 |
| BE719454A (en) | 1969-02-14 |
| DE1765875A1 (en) | 1971-10-28 |
| FR1576961A (en) | 1969-08-01 |
| CH508971A (en) | 1971-06-15 |
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