GB503322A - Improvements in or relating to the manufacture of di-electric materials - Google Patents
Improvements in or relating to the manufacture of di-electric materialsInfo
- Publication number
- GB503322A GB503322A GB2388037A GB2388037A GB503322A GB 503322 A GB503322 A GB 503322A GB 2388037 A GB2388037 A GB 2388037A GB 2388037 A GB2388037 A GB 2388037A GB 503322 A GB503322 A GB 503322A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- cumene
- atoms
- per molecule
- relating
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
503,322. Insulation ; chlorocumenes. DU PONT DE NEMOURS & CO., E. I., LEVINE, A. A., and CASS, O. W. Sept. 1, 1937,No.23880. [Class 36] [Also in Group IV] Dielectric compositions consist of (a) a mixture of two or more of trichlorisopropylbenzene, tetraohloriso-propylbenzene and pentachlorisopropylbenzene, the mixture being produced by the nuclear chlorination of cumene until 3À5-4À5 atoms of chlorine per molecule of cumene have been absorbed and (b) two or more of trichlorethylbenzene, tetraohlorethylbenzene and pentachlorethylbenzene. The chlorination of cumene may be effected at 0-75‹ C., in the absence of light, and in the presence of a catalyst such as iron, iodine or ferric chloride : the product may be fractionally distilled. A chlorinated ethylbenzene mixture containing 4À0-4À8 atoms of chlorine per molecule may be employed, this mixture being, if desired, separated into three fractions by distillation. Specification 486,501 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2388037A GB503322A (en) | 1937-09-01 | 1937-09-01 | Improvements in or relating to the manufacture of di-electric materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2388037A GB503322A (en) | 1937-09-01 | 1937-09-01 | Improvements in or relating to the manufacture of di-electric materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB503322A true GB503322A (en) | 1939-04-03 |
Family
ID=10202815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2388037A Expired GB503322A (en) | 1937-09-01 | 1937-09-01 | Improvements in or relating to the manufacture of di-electric materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB503322A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0046555A1 (en) * | 1980-08-27 | 1982-03-03 | Bayer Ag | Process for the preparation of 2,5-dichlorotoluene |
-
1937
- 1937-09-01 GB GB2388037A patent/GB503322A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0046555A1 (en) * | 1980-08-27 | 1982-03-03 | Bayer Ag | Process for the preparation of 2,5-dichlorotoluene |
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