US 7,491,887 B2
	Foaming resin composition, foam using the same and coaxial insulated cable
Takayoshi Ohno, Kasama (Japan); Shinya Yamada, Kasama (Japan); and Masato Yotsuya, Kasama (Japan)
Assigned to Junkosha Inc., Fukuda, Kasama-Shi, Ibaraki (Japan)
Appl. No. 10/597,438 PCT Filed Jan. 24, 2005, PCT No. PCT/JP2005/001285 § 371(c)(1), (2), (4) Date Jul. 25, 2006, PCT Pub. No. WO2005/070999, PCT Pub. Date Aug. 04, 2005.
Claims priority of application No. 2004-16697 (JP), filed on Jan. 26, 2004.
Prior Publication US 2008/0087454 A1, Apr. 17, 2008
Int. Cl. H01B 3/00 (2006.01)

U.S. Cl. 174—110F

3 Claims

1. A foaming composition comprising a fluororesin and an electrical insulating whisker, wherein the electrical insulating whisker is at least one selected from aluminum borate, magnesium borate and potassium titanate, and the whisker is from 0.1 μm to 1 μm in a diameter and further the whisker in the foaming composition is contained in an amount of from 0.1 to 1% by weight.