GB578915A - Improvements in or relating to electric insulating materials - Google Patents
Improvements in or relating to electric insulating materialsInfo
- Publication number
- GB578915A GB578915A GB920642A GB920642A GB578915A GB 578915 A GB578915 A GB 578915A GB 920642 A GB920642 A GB 920642A GB 920642 A GB920642 A GB 920642A GB 578915 A GB578915 A GB 578915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- butadiene
- polyisobutylene
- polystyrene
- polyethylene
- 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
- H01B3/442—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 aromatic vinyl compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Electric insulating material, particularly for insulated wire or cable, containing rubber and polystyrene, but not vulcanizing ingredients, is heated, without mechanical working such as milling, to at least 90 DEG C. for a time sufficient to cause substantial hardening of the material but insufficient to decompose it. The term "rubber" includes unvulcanized natural rubber, cyclised and synthetic rubber, as well as mixtures of these; and the term "synthetic rubber" includes polymers of butadiene or substituted butadiene, copolymers of butadiene and styrene, copolymers of an olefine and diolefine and linear substantially saturated hydrocarbon polymers, e.g. polyisobutylene. In examples, the treatment is described of compositions comprising polystyrene, crepe rubber, polyisobutylene and polyethylene alone, or paraffin wax together with (a) polyethylene, (b) talc or (c) zinc oxide. In another example, the processing of a mixture of a copolymer of butadiene and styrene, polystyrene, polyisobutylene, polyethylene and paraffin wax is described. Specification 577,943 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB920642A GB578915A (en) | 1942-07-03 | 1942-07-03 | Improvements in or relating to electric insulating materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB920642A GB578915A (en) | 1942-07-03 | 1942-07-03 | Improvements in or relating to electric insulating materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB578915A true GB578915A (en) | 1946-07-17 |
Family
ID=9867460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB920642A Expired GB578915A (en) | 1942-07-03 | 1942-07-03 | Improvements in or relating to electric insulating materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB578915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2606163A (en) * | 1949-01-05 | 1952-08-05 | Dow Chemical Co | Interpolymers of styrene with styrene-butadiene copolymers |
-
1942
- 1942-07-03 GB GB920642A patent/GB578915A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2606163A (en) * | 1949-01-05 | 1952-08-05 | Dow Chemical Co | Interpolymers of styrene with styrene-butadiene copolymers |
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