INSULATION WITH MICRO OXIDE PARTICLES

• US 20110220394A1
• Filed: 03/10/2011
• Published: 09/15/2011
• Est. Priority Date: 03/12/2010
• Status: Abandoned Application

• Current Assignee: General Cable Technologies Corporation (General Cable Corporation)
• Original Assignee: General Cable Technologies Corporation (General Cable Corporation)
• Inventors: SZYLAKOWSKI, Gregg R., ALBRINCK, Alice C., MCLINN, Matthew S.
• Application Number:
  US13/044,974
• Publication Number:
  US 20110220394A1
• Time in Patent Office: Days
• US Class Current: 174/137.B
• CPC Class Codes: H01B 7/0216 Two layers
• CPC Class Codes: H01B 7/295 using material resistant to flame

Abstract

A composite insulation that comprises an insulating material and amorphous micro oxide particles added to the insulating material by at least 1% weight of the composition insulation wherein the micro oxide particles provide at least one of an increase in the flame retardancy of the insulating material, a reduction in smoke generated, and an improvement in the electrical properties of the insulating material.

Claims

1. A composite insulation, comprising

an insulating material;

and

amorphous micro oxide particles added to said insulating material by at least 1% weight of the composition insulation wherein said micro oxide particles provide at least one of an increase in the flame retardancy of the insulating material, a reduction in smoke generated, and an improvement in the electrical properties of the insulating material.

2. A composite insulation according to claim 1, wherein

said micro oxide particles are non-porous.

3. A composite insulation according to claim 2, wherein

said micro oxide particles are silicon dioxide composite insulation.

4. A composite insulation according to claim 3, wherein

said silicon dioxide is up to 80% by weight of the composite insulation.

5. A composite insulation according to claim 1, wherein

the dielectric constant of the composite insulation is about 3-30% higher than the insulating material.

6. A composite insulation according to claim 1, wherein

the viscosity of the composite insulation is about 3-30% higher than the insulating material.

7. A composite insulation according to claim 1, wherein

the melt flow index of the composite insulation is about 3-30% higher than the insulating material.

8. A composite insulation according to claim 1, wherein

the melting point of the composition insulation is about 3-50% higher than the insulating material.

9. A composite insulation according to claim 1, wherein

the composite material is about 3-30% less translucent than the insulating material.

10. A composite insulation according to claim 1, wherein

0.5-10% coloring agent uses about 3-30% less color concentrate in the composite insulation to achieve the same color values than the insulating material with the same percentage of coloring agent.

11. A composite insulation according to claim 1, wherein

the charring of the composite insulation is about 3-30% higher than the insulating material.

12. A composite insulation according to claim 1, wherein

the composite insulation has a melting point of less than about 270°

C.

13. A composite insulation according to claim 1, wherein

the micro oxide particles have a mean particle size of about 100-300 nm and a mean surface area of less than or equal to about 40 m²/g.

14. A composite insulation according to claim 1, wherein

the composite insulation has a dielectric constant of less than 2.4.

15. A composite insulation according to claim 1, wherein

the composite insulation exhibits less smoke when burned that the insulating material.

16. A composite insulation according to claim 1, wherein

said insulating material is one of polyolefin, polyester, fluoropolymer, Halar, PTFE, PVC, HDPE, and EVA.

17. A composite insulation according to claim 16, wherein

said insulation material does not include a polyamide.

18. A composite insulation for a cable component, comprising

an insulating material;

and

solid, non-porous, low surface area, non-ionic, non-hydrated, mineral or metal micro oxide particles added to said insulating material by at least 1% weight of the composition insulation wherein said micro oxide particles increase the flame retardancy of the insulating material and improve the electrical performance of the cable.

19. A composite insulation according to claim 18, wherein

said micro oxide particles are silicon dioxide.

20. A composite insulation according to claim 19, wherein

said insulation material does not include a polyamide.