Daikin Industries, Ltd.

Daikin America, Inc.

Keizou Shiotsuki

Tadaharu Isaka

Tatsuya Higuchi

Takahiro Taira

Ryouichi Fukagawa

Shouji Fukuoka

Takahiro Kitahara

Hayato Tsuda

Eiji Fujita

Takeshi Shimono

Yumi Zenke

Yukari Yamamoto

Provided is a tetrafluoroethylene/hexafluoropropylene copolymer which is less likely to form a lump, or is less likely to form a large lump even if a lump is formed, during the formation of an electric wire. The tetrafluoroethylene/hexafluoropropylene copolymer has a melt flow rate measured at 372&#xb0; C. of 35.0 to 45.0 g/10 minutes and a swell of &#x2212;8.0% to 5.0%, the sum of the numbers of &#x2014;CFH groups and unstable end groups being 120 or less per 1&#xd7;10carbon atoms.

Tetrafluoroethylene/hexafluoropropylene copolymer, and electric wire

A tetrafluoroethylene/hexafluoropropylene copolymer has improved moldability in melt extrusion molding, especially with significant reduction of defects in high-speed extrusion coating of an electrical wire. The tetrafluoroethylene/hexafluoropropylene copolymer is obtained by polymerization of at least tetrafluoroethylene and hexafluoropropylene selected from the group consisting of tetrafluoroethylene, hexafluoropropylene and a third monomer without mixing with the resin which has the melting point with the difference of 20 degree C. and more from the melting point of the tetrafluoroethylene/hexafluoropropylene copolymer; and has a complex viscosity of from 2.0&#xd7;I0to 10.0&#xd7;I0Pa*s and a storage modulus of from 0.1 to 3.5 Pa*s in melt viscoelasticity measurement under the condition of atmosphere temperature of 310 degree C. and angular frequency of 0.01 radian/second. The tetrafluoroethylene/hexafluoropropylene copolymer can be used in an electrical wire as a coating on a conductive core.

Tetrafluoroethylene/hexafluoropropylene copolymer and the production method thereof, and electrical wire

The present invention provides a resin composition containing a filler poor in affinity for fluororesins as uniformly dispersed therein and a method of producing such resin composition and, further, a resin composition containing, as fillers, a nucleating agent for foaming and suited for producing foamed moldings with fine foam cells uniformly distributed therein and a method of producing such resin composition as well as a foamed molding formed from either of such resin compositions. The present invention is related to a resin composition comprising a fluororesin (A) and a filler (X) low in affinity for said fluororesin (A), wherein the filler (X) has a d99 value of not more than 15 &#x3bc;m.

Resin composition, method of producing same, and foam-insulated electric wire

Resin composition, process for production thereof, and foam-insulated electric wire

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Settsu, Japan

Keizou Shiotsuki