Coated conductor

Patent metadata

Field	Value
Publication number	US-12110445-B2
Application number	US-202017440376-A
Country	US
Kind code	B2
Filing date	Jun 2, 2020
Priority date	Jun 3, 2019
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

The present disclosure provides a composition. The composition includes (A) an ethylene-based polymer and (B) from 5 wt % to 15 wt % of a metal hydroxide component, based on the total weight of the composition. The metal hydroxide component includes a metal hydroxide having an aspect ratio greater than, or equal to, 10. The composition has a thermal conductivity greater than 0.52 W m− 1 K− 1 and a density less than, or equal to 1.02 g/cc. The present disclosure also provides a coated conductor including a non-metal conductor and a coating on the conductor, the coating containing the composition.

First claim

The invention claimed is:

1. A composition comprising:
(A) an ethylene-based polymer;
(B) from 5 wt % to 15 wt % of a metal hydroxide component, based on the total weight of the composition, the metal hydroxide component comprising a metal hydroxide having an aspect ratio greater than, or equal to, 10; and
the composition has a thermal conductivity greater than 0.52 W·m−1·K−1 and a density less than, or equal to 1.02 g/cc.

2. The composition of claim 1 , wherein the (A) ethylene-based polymer comprises a medium density polyethylene and a very low density polyethylene.

3. The composition of claim 2 , wherein the composition has a thermal conductivity greater than 0.54 W·m−1·K−1.

4. The composition of claim 3 , wherein the composition has an initial tracking voltage greater than 2.75 kV.

5. The composition of claim 1 comprising from 10 wt % to 15 wt % of the metal hydroxide, based on the total weight of the composition.

6. The composition of claim 1 , wherein the metal hydroxide component comprises a second metal hydroxide having an aspect ratio less than 10.

7. A coated conductor comprising:
a non-metal conductor;
a coating on the non-metal conductor, the coating comprising the composition of claim 1 .

8. The coated conductor of claim 7 , wherein the coating is an outermost layer.

9. The coated conductor of claim 8 , wherein the coating has a thermal conductivity greater than 0.52 W·m−1·K−1 and a density less than, or equal to 1.02 g/cc.

10. The coated conductor of claim 7 , wherein the (A) ethylene-based polymer comprises a medium density polyethylene and a very low density polyethylene.

11. The coated conductor of claim 7 , wherein the coating has an initial tracking voltage greater than 2.75 kV.

12. The coated conductor of claim 7 , wherein the metal hydroxide component comprises a second metal hydroxide having an aspect ratio less than 10.

13. The coated conductor of claim 7 , wherein the coating further comprises (C) a maleic anhydride-grafted ethylene-based polymer.

14. The coated conductor of claim 7 , wherein the non-metal conductor comprises an optical fiber.

15. A composition comprising:
(A) an ethylene-based polymer;
(B) from 5 wt % to 15 wt % of a metal hydroxide component, based on the total weight of the composition, the metal hydroxide component comprising a metal hydroxide having an aspect ratio greater than, or equal to, 10;
(C) a maleic anhydride-grafted ethylene-based polymer; and
the composition has a thermal conductivity greater than 0.52 W·m−1·K−1 and a density less than, or equal to 1.02 g/cc.

Assignees

• Dow Global Technologies Llc

Inventors

• Grand Caroline M
• Chaudhary Bharat I
• Francis Jr William C
• Esseghir Mohamed

Classifications

• G02B6/443

  Protective covering · CPC title

• C09K5/14 Primary

  Solid materials, e.g. powdery or granular · CPC title

• C08L23/04 Primary

  Homopolymers or copolymers of ethene · CPC title

• C09D123/0815

  Copolymers of ethene with aliphatic 1-olefins · CPC title

• C09D5/00

  Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced {(electrically insulating plastics, resins or waxes H01B3/30)}; Filling pastes · CPC title