Electrically conducting polymer and production method and...

Details Electrically conducting polymer and production method and... Electrically conducting polymer and production method and...

2004-09-01

2009-08-04

Mc Ginty, Douglas (Department: 1796)

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

C252S502000

Reexamination Certificate

active

07569161

ABSTRACT:
The invention provides a production method of a conductive polymer, comprising a step of blending a polymer in a state of a melt viscosity of 600 Pa·s or less at a shear rate of 100 s−1with a vapor grown carbon fiber in 1 to 15 mass at a mixing energy of 1,000 mJ/m3or less, and a conductive polymer obtained thereby. Preferably, a vapor grown carbon fiber used has an outer fiber diameter of 80 to 500 nm, an aspect ratio of 40 to 1,000, a BET specific surface area of 4: to 30 m2/g, a do02 of 0.345 nm or less according to an X-ray diffraction method, and a ratio (Id/Ig) of 0.1 to 2 wherein Id and Ig each represent peak heights of a band ranging from 1,341 to 1,349 cm−1and a band ranging from 1,570 to 1,578 cm−1respectively, according to a Raman scattering spectrum. According to the invention, an excellent conductivity can be attained by compounding vapor grown carbon fiber in a smaller amount than in a conventional method.

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GE Melt Viscosity, Intertek Plastics Technology Laboratories, 2009, pp. 1 and 2.

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