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US 10,269,470 B2Granted
Cable core and transmission cable
AssigneeJunkosha Inc.
InventorTakeshi Nakajima
Life of this patent
Estimating the term…
Abstract
A cable core includes: an internal conductor; a foamed dielectric that includes a fluororesin and is formed on the internal conductor by extrusion molding; and a skin layer that covers the foamed dielectric, and is configured such that a foaming rate of the foamed dielectric is 80% or more, an average foamed cell diameter of the foamed dielectric is 10 μm or less, and a standard deviation of a foamed cell diameter of the foamed dielectric is 2.5 or less.
Claims5
A cable core comprising:
- an internal conductor;
- a foamed dielectric that comprises a fluororesin and is formed on the internal conductor by extrusion molding;
- and
- a skin layer that covers the foamed dielectric,
- wherein
- a foaming rate of the foamed dielectric is 80% or more,
- an average foamed cell diameter of the foamed dielectric is 10 μm or less, and
- a standard deviation of a foamed cell diameter of the foamed dielectric is 2.5 or less.
5 more elements
Dependencies are inferred from the claim text.