Conductive thermosets by extrusion

Details Conductive thermosets by extrusion Conductive thermosets by extrusion

2011-03-22

2011-03-22

Cain, Edward J (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S496000

Reexamination Certificate

active

07910650

ABSTRACT:
Methods of preparing conductive thermoset precursors containing carbon nanotubes is provided. Also provided is a method of preparing conductive thermosets containing carbon nanotubes. The carbon nanotubes may in individual form or in the form of aggregates having a macromorpology resembling the shape of a cotton candy, bird nest, combed yarn or open net. Preferred multiwalled carbon nanotubes have diameters no greater than 1 micron and preferred single walled carbon nanotubes have diameters less than 5 nm. Carbon nanotubes may be adequately dispersed in a thermoset precursor by using a extrusion process generally reserved for thermoplastics. The thermoset precursor may be a precursor for epoxy, phenolic, polyimide, urethane, polyester, vinyl ester or silicone. A preferred thermoset precursor is a bisphenol A derivative.

REFERENCES:
patent: 4663230 (1987-05-01), Tennent
patent: 4855091 (1989-08-01), Geus
patent: 5110693 (1992-05-01), Friend et al.
patent: 5165909 (1992-11-01), Tennent et al.
patent: 5171560 (1992-12-01), Tennent
patent: 5346683 (1994-09-01), Green et al.
patent: 5424054 (1995-06-01), Bethune et al.
patent: 5456897 (1995-10-01), Moy et al.
patent: 5500200 (1996-03-01), Mandeville et al.
patent: 5569635 (1996-10-01), Moy et al.
patent: 5591382 (1997-01-01), Nahass et al.
patent: 5641466 (1997-06-01), Ebbesen et al.
patent: 5707916 (1998-01-01), Snyder et al.
patent: 5965470 (1999-10-01), Bening et al.
patent: 6031711 (2000-02-01), Tennent et al.
patent: 6099960 (2000-08-01), Tennent et al.
patent: 6099965 (2000-08-01), Tennent et al.
patent: 6143689 (2000-11-01), Moy et al.
patent: 6203814 (2001-03-01), Fisher et al.
patent: 6221330 (2001-04-01), Moy et al.
patent: 6528572 (2003-03-01), Patel et al.
patent: 6689835 (2004-02-01), Amarasekera et al.
patent: 6696387 (2004-02-01), Moy et al.
patent: 7566749 (2009-07-01), Fischer et al.
patent: 2004/0071990 (2004-04-01), Moriyama et al.
patent: 2004/0122153 (2004-06-01), Guo et al.
patent: 2004/0202603 (2004-10-01), Fischer et al.
patent: 2005/0002850 (2005-01-01), Niu et al.
patent: 2005/0171270 (2005-08-01), Noguchi et al.
patent: 2006/0293434 (2006-12-01), Yodh et al.
patent: 2007/0213450 (2007-09-01), Winey et al.
patent: 2005262527 (2005-09-01), None
patent: 2006057057 (2006-03-01), None
patent: 8907163 (1989-08-01), None
patent: WO 9103057 (1991-03-01), None
patent: 9105089 (1991-04-01), None
patent: 9507316 (1995-03-01), None
patent: WO03014209 (2003-02-01), None
patent: 03079472 (2003-09-01), None
patent: 03080513 (2003-10-01), None
patent: WO03085681 (2003-10-01), None
Australian Patent Office Search Report, mailed May 8, 2008.
Ajayan and lijima, “Capillarity-induced filling of carbon nanotubes,” Nature 361, p. 334-337 (1993).
Baker and Harris, “The Formation of Filamentous Carbon,” Chemistry and Physics of Carbon, Walker and Thrower ed., vol. 14, New York 1978, p. 83.
Bethune, D S., et al., “Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer walls,” Nature, vol. 363, pp. 605-607 (1993).
Chen, Haddon and associates, “Chemical attachment of organic functional groups to single-walled carbon nanotube material,” J. Mater. Res., vol. 13, No. 9, pp. 2423-2431 (1998).
Chen, Haddon and his associates; “Solution Properties of Single-Walled Carbon Nanotubes,” Science 282, pp. 95-98 (1998).
Dai., H., et al., “Single-wall nanotubes produced by metal-catalyzed disproportionation of carbon monoxide,” Chern. Phys. Lett. 260: 471-475 (1996).
Guo, T., et al., “Catalytic growth of single-walled nanotubes by laser vaporization”, Chern. Phys. Lett. 243: 49-54 (1995).
Iijima, “Helical microtubules of graphitic carbon,” Nature 354, 56 (1991).
Iijima and T Ichihashi, “Single-shell carbon nanotubes of 1-nm diameter”, Nature, vol. 363, p. 603 (1993).
Mccarthy and Bening, “Surface Chemistry of Fibrillar Carbon,” Polymer Preprints ACS Div. Of Polymer Chern. 30 (1): 420 (1990).
Rodriguez, N., “A Review of Catalytically Grown Carbon Nanofibers,” J. Mater. Research, vol. 8, pp. 3233-3250 (1993).
Thess, A., et al., “Crystalline Ropes of Metallic Carbon Nanotubes,” Science, 273: 483-487 (1996).
Weaver, “Totally Tubular,” Science 265, pp. 611-612 (1994).
Wender and P. Pino, eds., “Organic Syntheses via Metal Carbonyls,” vol. 1, Interscience Publishers, New York, 1968, p. 40.
Hoogenraad, M.S., et al., “Metal catalysts supported on a novel carbon support,” Preparation of Catalysts VI, (G. Poncelet et al. Editors), 1995, pp. 263-271.

Affiliated with

Also associated with

Rating

Conductive thermosets by extrusion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Conductive thermosets by extrusion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conductive thermosets by extrusion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2630150