GB635445A - Improvements in or relating to insulated electrical conductors - Google Patents
Improvements in or relating to insulated electrical conductorsInfo
- Publication number
- GB635445A GB635445A GB10359/48A GB1035948A GB635445A GB 635445 A GB635445 A GB 635445A GB 10359/48 A GB10359/48 A GB 10359/48A GB 1035948 A GB1035948 A GB 1035948A GB 635445 A GB635445 A GB 635445A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- polysiloxanes
- conductor
- polysiloxane
- total number
- 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
- H01B3/308—Wires with resins
-
- 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
- H01B3/46—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 silicones
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Polyamides (AREA)
Abstract
A conductor is insulated with a coating of a cured cross-linked polyester amide resin applied directly thereon and an outer coating of an organo polysiloxane resin. The polyester amide resin may be produced by reacting (a) a mixture of organic di-carboxylic acids or anhydrides thereof having an average of from 2 to 3 1/2 non-carboxyl carbon atoms per molecule, the mixture composed of from 48 to 92 mole per cent of an acid having the group <FORM:0635445/IV (a)/1> where R and R1 each represent OH or R and R1 together represent O and the remainder is saturated aliphatic dicarboxylic acids having from 4 to 12 carbon atoms, and (b) a mixture of primary aliphatic amines and alkyl polyhydric alcohols, the total number of amino and hydroxyl groups in (b) being substantially equal to or more than the total number of carboxyl groups in (a). Examples of suitable resins of this type are given in Specification 626,145. Organo-polysiloxane resins suitable for the outer coating comprise the following typical structures <FORM:0635445/IV (a)/2> where R and R1 may be the same or different organic radicals attached through carbon silicon linkages to at least some of the silicone atoms. The ratio of R+R1 to Si may vary from 2 to 1, and X may have a value of 4 or more. Numerous suitable organic radicals are given. The polysiloxanes may form linear, branched, cross-linked and cyclic structures. After application to the conductor the polysiloxane resin is cured by heating to a temperature between 150 DEG and 250 DEG C. for a few minutes. A catalyst may be employed to expedite the curing. Stabilizers such as high boiling point amines and phenols may be added to the polysiloxanes to enable them to withstand high temperatures without cracking or deteriorating.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US635445XA | 1947-06-19 | 1947-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB635445A true GB635445A (en) | 1950-04-12 |
Family
ID=22049932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10359/48A Expired GB635445A (en) | 1947-06-19 | 1948-04-14 | Improvements in or relating to insulated electrical conductors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB635445A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2879183A (en) * | 1955-12-15 | 1959-03-24 | Bell Telephone Labor Inc | Insulating coatings and a method for their production |
-
1948
- 1948-04-14 GB GB10359/48A patent/GB635445A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2879183A (en) * | 1955-12-15 | 1959-03-24 | Bell Telephone Labor Inc | Insulating coatings and a method for their production |
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