Nano-scaled graphene plate-reinforced composite materials...

Plastic and nonmetallic article shaping or treating: processes – Orienting or aligning solid particles in fluent matrix material

Reexamination Certificate

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C252S37800R, C423S447200, C423S448000, C977S778000

Reexamination Certificate

active

07662321

ABSTRACT:
Disclosed are a nano-composite composition and a method of making such a composite that is composed of a matrix material and dispersed reinforcement nano-scaled graphene plates (NGPs) that are substantially aligned along at least one specified direction or axis. The method comprises: (a) providing a mixture of nano-scaled graphene plates (NGPs) and a matrix material in a fluent state; (b) extruding the mixture to form a filament wherein NGPs are aligned along a filament axis; (c) aligning a plurality of segments of the filament in a first direction, or moving the filament back and forth along a first direction and its opposite direction, to form a NGP-matrix filament preform; and (d) consolidating the preform to form the nanocomposite material. Also disclosed is a method of making a nano-composite fiber.

REFERENCES:
patent: 6934600 (2005-08-01), Jang et al.
patent: 7071258 (2006-07-01), Jang et al.
patent: 2003/0236588 (2003-12-01), Jang et al.
patent: 2004/0131533 (2004-07-01), Spacie et al.
patent: 2005/0282952 (2005-12-01), Takekoshi et al.
patent: 2006/0035085 (2006-02-01), Ozaki et al.
patent: 2007/0092432 (2007-04-01), Prud'Homme et al.
U.S. Appl. No. 10/858,814, filed Jun. 3, 2004, B. Z. Jang, et al.

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