GB775581A - Improvements in the manufacture of dielectric materials - Google Patents
Improvements in the manufacture of dielectric materialsInfo
- Publication number
- GB775581A GB775581A GB2431654A GB2431654A GB775581A GB 775581 A GB775581 A GB 775581A GB 2431654 A GB2431654 A GB 2431654A GB 2431654 A GB2431654 A GB 2431654A GB 775581 A GB775581 A GB 775581A
- Authority
- GB
- United Kingdom
- Prior art keywords
- free
- peroxides
- radical
- trifluoromethyldiphenyl
- alkyl
- 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
- 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
- H01B3/44—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 vinyl resins; acrylic resins
- H01B3/441—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 vinyl resins; acrylic resins from alkenes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
- C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
- C07C17/2637—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions between a compound containing only oxygen and possibly halogen as hetero-atoms and a halogenated hydrocarbon
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Organic Insulating Materials (AREA)
Abstract
Isomeric mixtures of trifluoromethyldiphenyl are obtained by the reaction between a free-radical forming organic peroxide and a trifluoromethyl compound of the formula <FORM:0775581/IV(b)/1> by a free radical reaction. In an example benzoyl peroxide reacts with benzotrifluoride to give a mixture of 2-, 3-, and 4-, trifluoromethyldiphenyl. Other free - radical - forming organic peroxides which may be used include t.-butyl peroxide and other alkyl peroxides of up to 4 carbon atoms and alkyl substituted benzoyl peroxides, the former giving, as products, mixtures of trifluoromethyl alkyl aryl compounds.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2431654A GB775581A (en) | 1954-08-20 | 1954-08-20 | Improvements in the manufacture of dielectric materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2431654A GB775581A (en) | 1954-08-20 | 1954-08-20 | Improvements in the manufacture of dielectric materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB775581A true GB775581A (en) | 1957-05-29 |
Family
ID=10209778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2431654A Expired GB775581A (en) | 1954-08-20 | 1954-08-20 | Improvements in the manufacture of dielectric materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB775581A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0008453A1 (en) * | 1978-08-28 | 1980-03-05 | Bayer Ag | Process for preparing trifluoromethyl aromatic compounds |
-
1954
- 1954-08-20 GB GB2431654A patent/GB775581A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0008453A1 (en) * | 1978-08-28 | 1980-03-05 | Bayer Ag | Process for preparing trifluoromethyl aromatic compounds |
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