# US 12,110,445 B2 · Coated conductor

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- Number: US 12,110,445 B2
- Document ID: US12110445B2
- Status: Granted
- Kind: B2
- Application number: 17/440,376
- Filed: 2020-06-02
- Published: 2022-05-26
- Granted: 2024-10-08
- Earliest claimed: 2019-06-03
- Assignees: Dow Global Technologies LLC
- Applicants: Dow Global Technologies LLC
- Inventors: Caroline M. Grand; Bharat I. Chaudhary; William C. Francis, Jr.; Mohamed Esseghir
- Web page: https://patentgrep.com/patent/US12110445B2

## CPC

- C08L 23/04: Homopolymers or copolymers of ethene
- C08K 3/22: of metals
- C09D 5/00: 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
- C09D 7/61: inorganic
- C09D 123/04: Homopolymers or copolymers of ethene
- C09D 123/0815: {Copolymers of ethene with aliphatic 1-olefins}
- C09K 5/14: Solid materials, e.g. powdery or granular
- G02B 6/443: {Protective covering}
- C08K 2003/2224: {Magnesium hydroxide}
- C08K 2201/014: Additives containing two or more different additives of the same subgroup in C08K
- C08K 2201/016: Additives defined by their aspect ratio
- G02B 6/4413: {Helical structure}
- G02B 6/4432: {with fibre reinforcements}
- G02B 6/4434: {Central member to take up tensile loads}
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 2)

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

### Claim 4 (depends on 3)

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

### Claim 5 (depends on 1)

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

### Claim 6 (depends on 1)

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

### Claim 7 (depends on 1)

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

### Claim 8 (depends on 7)

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

### Claim 9 (depends on 8)

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.

### Claim 10 (depends on 7)

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

### Claim 11 (depends on 7)

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

### Claim 12 (depends on 7)

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

### Claim 13 (depends on 7)

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

### Claim 14 (depends on 7)

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

### Claim 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.
