Dupont-Mitsui Fluorochemicals Company, Ltd.

Nissei Electric Co., Ltd

Dupont-Mitsui Fluorchemicals Co., Ltd.

Chemours-Mitsui Fluoroproducts Co., Ltd.

Etsuya Taki

Jeong Chang Lee

Takao Nishio

Hoai-Nam Pham

Hideki Kikuchi

Daisuke Tanaka

Tetsuto Nakajima

Hoai-nam Pham

An object of the present invention is to provide a heat shrink tube excellent in peelability and transparency, and a method for producing the heat shrink tube. The present invention provides a peelable heat shrink tube comprising a composition containing a melt-processable fluororesin and PTFE, the PTFE lacking a heat history of its melting point or higher after polymerization and having a specific gravity, as measured according to ASTM D4894, of 2.20 or less. The content of the PTFE is 0.05 to 3.0 wt % based on the total weight of the melt-processable fluororesin and the PTFE. The present invention also provides a method for producing the tube which comprises melt-extruding the composition at a temperature lower than the melting point of the PTFE.

Heat shrink tube and method for producing the same

An improved circuit substrate is provided wherein glass cloth is completely embedded within fluoropolymer by thermocompression to form a composite structure, which when containing an adhesive agent such as the combination of functional groups and liquid crystal polymer is self-adhering to a metal layer such as of copper.

Fluoropolymer-glass fabric for circuit substrates

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Tokyo, Japan

Etsuya Taki