Flexible biregional carbonaceous fiber, articles made from bireg

Details Flexible biregional carbonaceous fiber, articles made from bireg Flexible biregional carbonaceous fiber, articles made from bireg

1997-07-31

1998-07-07

Edwards, Newton

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428408, 428375, 428367, 442157, D02G 300

Patent

active

057766096

ABSTRACT:
A novel flexible biregional carbonaceous fiber is disclosed comprising an inner core region of a thermoplastic polymeric material and an outer region of a carbonaceous sheath. The flexible biregional carbonaceous fibers are particularly characterized by having a ratio of the radius of the core region with respect to the total radius of the fiber (r:R) of from about 1:4 to about 1:1.05, a density of from about 1.45 to about 1.87 g/cm.sup.3, and a bending strain value of from greater than 0.01 to less than 50%. In a further embodiment of the invention, a biregional precursor fiber is disclosed having an inner core region of a thermoplastic polymeric material and an outer sheath region of a oxidation stabilized, thermoset polymeric material. The oxidation stabilized precursor fiber is characterized by having a density of from about 1.20 to about 1.32 g/cm.sup.3 The invention further resides in methods of making the biregional fibers. Preferred end uses for the biregional fibers are disclosed including thermal insulation; flame resistant and fire blocking insulation; blends of the biregional carbonaceous fibers with other natural or polymeric fibers; coated fibers, composites composed of a polymeric matrix reinforced with the biregional carbonaceous fibers of the invention, electron conductive fibers for battery electrodes, and the like.

REFERENCES:
patent: 4857394 (1989-08-01), McCullough
patent: 4857404 (1989-08-01), McCullough
patent: 4897303 (1990-01-01), McCullough
patent: 4980233 (1990-12-01), McCullough
patent: 4997716 (1991-03-01), McCullough
patent: 5700573 (1997-12-01), McCullough

Affiliated with

Also associated with

Rating

Flexible biregional carbonaceous fiber, articles made from bireg does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible biregional carbonaceous fiber, articles made from bireg, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible biregional carbonaceous fiber, articles made from bireg will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1203559