GB822701A - Improvements relating to electrical insulating materials - Google Patents
Improvements relating to electrical insulating materialsInfo
- Publication number
- GB822701A GB822701A GB3693854A GB3693854A GB822701A GB 822701 A GB822701 A GB 822701A GB 3693854 A GB3693854 A GB 3693854A GB 3693854 A GB3693854 A GB 3693854A GB 822701 A GB822701 A GB 822701A
- Authority
- GB
- United Kingdom
- Prior art keywords
- asbestos
- polyethylene terephthalate
- rubberized
- layer
- dec
- 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
- 239000011810 insulating material Substances 0.000 title 1
- 239000010425 asbestos Substances 0.000 abstract 5
- 229910052895 riebeckite Inorganic materials 0.000 abstract 5
- -1 polyethylene terephthalate Polymers 0.000 abstract 3
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 3
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 3
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 229920001187 thermosetting polymer Polymers 0.000 abstract 2
- 239000004593 Epoxy Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 239000012777 electrically insulating material Substances 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 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
- H01B3/42—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 polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
- H01B3/422—Linear saturated polyesters derived from dicarboxylic acids and dihydroxy compounds
- H01B3/423—Linear aromatic polyesters
-
- 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
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/06—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances asbestos
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
822,701. Laminates. BRITISH THOMSONHOUSTON CO. Ltd. Dec. 14, 1955 [Dec. 21, 1954], No. 36938/54. Class 140. [Also in Group XXXV] A composite sheet of electrically insulating material for use in winding slots and slot lines for dynamo-electric machines (e.g. of turboalternator rotors) is made by bonding a layer of polyethylene terephthalate to at least one side of a layer of rubberized asbestos. The rubberized asbestos may have attached to one side resinated asbestos felt and to the other polyethylene terephthalate. Where a sandwich is made the middle layer should be half the total thickness and the outer layers should be of equal thickness. The resin in the asbestos felt may be an epoxy or phenolic thermosetting resin. A pressure-sensitive, preferably thermosetting, adhesive may be used for bonding the polyethylene terephthalate to the rubberized asbestos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3693854A GB822701A (en) | 1954-12-21 | 1954-12-21 | Improvements relating to electrical insulating materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3693854A GB822701A (en) | 1954-12-21 | 1954-12-21 | Improvements relating to electrical insulating materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB822701A true GB822701A (en) | 1959-10-28 |
Family
ID=10392401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3693854A Expired GB822701A (en) | 1954-12-21 | 1954-12-21 | Improvements relating to electrical insulating materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB822701A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11603610B2 (en) | 2017-07-14 | 2023-03-14 | 3M Innovative Properties Company | Noise control article |
-
1954
- 1954-12-21 GB GB3693854A patent/GB822701A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11603610B2 (en) | 2017-07-14 | 2023-03-14 | 3M Innovative Properties Company | Noise control article |
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