Carbon fiber-reinforced composite material and method of making

Details Carbon fiber-reinforced composite material and method of making Carbon fiber-reinforced composite material and method of making

2005-06-28

2005-06-28

Colaianni, Michael P. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Orienting or aligning solid particles in fluent matrix material

C264S105000, C264S349000, C264S328180

Reexamination Certificate

active

06911169

ABSTRACT:
A method of making a composite article of a graphite-filled polymer mixture that is robust during high shear mixing and compounding, and that exhibits relatively low electrical resistivity after molding. The mixture is formed by shear mixing a liquid polymeric material, graphitized carbon fibers having diameters of less than one micrometer, and glass fibers longer than the carbon fibers. The carbon and glass fibers constitute up to about 25 volume percent and up to about 50 weight percent, respectively, of the mixture, though the addition of as little as about 1 weight percent of the glass fibers has been shown to dramatically reduce resistivity. The mixture is then introduced into a mold so that the glass fibers are substantially oriented parallel to the direction of flow. Due at least in part to the glass fibers being larger than the carbon fibers, the carbon fibers are substantially aligned with the glass fibers and preferentially segregate to regions of the polymeric matrix near interfaces between the polymeric matrix and the glass fibers.

REFERENCES:
patent: 4994220 (1991-02-01), Gutjahr et al.
patent: 5024818 (1991-06-01), Tibbetts et al.
patent: 5374415 (1994-12-01), Alig et al.
patent: 5413773 (1995-05-01), Tibbetts et al.
patent: 5433906 (1995-07-01), Dasch et al.
patent: 5614312 (1997-03-01), Tucker et al.
patent: 5853865 (1998-12-01), McHugh et al.
patent: 5887225 (1999-03-01), Bell
patent: 6673864 (2004-01-01), Patel et al.
patent: WO 98/20503 (1998-05-01), None

Affiliated with

Also associated with

Rating

Carbon fiber-reinforced composite material and method of making does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbon fiber-reinforced composite material and method of making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon fiber-reinforced composite material and method of making will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3499496