Claims
- 1. An electrical conductor provided with an electrically insulating layer of an organic, high-molecular weight polyester containing substantially chain members of the formula ##STR7## wherein X is at least one member selected from the group consisting of ##STR8## having an inherent viscosity of at least 1.0 dl/g measured at 30.degree. C. in a solution of 0.5 g of the polyester in 100 ml of a mixture of 60% by weight of phenol and 40% by weight of 1,1,2,2-tetrachloroethane and whose films cast from a chlorinated organic solution have an elongation at break of more than about 20%.
- 2. An conductor of claim 1 wherein the inherent viscosity of the polyester is at least 1.2 dl/g.
- 3. A conductor of claim 1 wherein the elongation at break of the polyester is at least 40%.
- 4. A conductor of claim 1 wherein X is the polyester mixture of 70 to 30% by weight of ##STR9##
- 5. A conductor of claim 4 wherein the mixture is a 50% to 50%.
- 6. A conductor of claim 1 wherein the inherent viscosity of the polyester is greater than 1.5 dl/g.
- 7. A conductor of claim 1 wherein the inherent viscosity of the polyester is greater than 1.8 dl/g.
- 8. A method of insulating an electrical conductor comprising providing the exterior surface of the electrical conductor with an electrically insulating layer of an organic, high-molecular weight polyester containing substantially chain members of the formula ##STR10## wherein X is at least one member selected from the group consisting of ##STR11## having an inherent viscosity of at least 1.0 dl/g measured at 30.degree. C. in a solution of 0.5 g of the polyester in 100 ml of a mixture of 60% by weight of phenol and 40% by weight of 1,1,2,2-tetrachloroethane and whose films cast from a chlorinated organic solution have an elongation at break of more than about 20%.
- 9. The method of claim 8 wherein the inherent viscosity of the polyester is at least 1.2 dl/g.
- 10. The method of claim 8 wherein the elongation at break of the polyester is at least 40%.
- 11. The method of claim 8 wherein X is a mixture of 70 to 30% by weight of ##STR12##
- 12. The method of claim 11 wherein the mixture is a 50% to 50%.
- 13. The method of claim 8 wherein the inherent viscosity of the polyester is greater than 1.5 dl/g.
- 14. The method of claim 8 wherein the inherent viscosity of the polyester is greater than 1.8 dl/g.
Priority Claims (2)
Number |
Date |
Country |
Kind |
81-890076.3 |
May 1981 |
EPX |
|
5278/81 |
Dec 1981 |
ATX |
|
Parent Case Info
This is a division of Ser. No. 375,205 filed May 5, 1982 now U.S. Pat. No. 4,388,454.
US Referenced Citations (3)
Divisions (1)
|
Number |
Date |
Country |
Parent |
375205 |
May 1982 |
|