Title of Invention

PREPARATION OF STABLE CARBON NANOTUBE DISPERSIONS IN LIQUIDS

Abstract The introduction of nanotubes in a liquid provides a means for changing the physical and/or chemical properties of the liquid. Improvements in heat transfer, electrical properties, viscosity, and lubricity can be realized upon dispersion of nanotubes in liquids; however, nanotubes behave like hydrophobic particles and tend to clump together in liquids. Methods of preparing stable dispersions of nanotubes are described and surfactants/dispersants are identified which can disperse carbon nanotubes in aqueous and petroleum liquid medium. The appropriate dispersant is chosen for the carbon nanotube and the water or oil based medium and the dispersant is dissolved into the liquid medium to form a solution. The carbon nanotube is added to the dispersant containing the solution with agitation, ultrasonication, and/or combinations thereof.
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Documents:

1306-CHENP-2004 ASSIGNMENT 30-10-2009.pdf

1306-chenp-2004 correspondence others.pdf

1306-chenp-2004 correspondence po.pdf

1306-CHENP-2004 CORRESPONDENCE-OTHERS 30-10-2009.pdf

1306-chenp-2004 description (complete) granted.pdf

1306-chenp-2004 form 18.pdf

1306-chenp-2004 form 3.pdf

1306-chenp-2004 form 5.pdf

1306-CHENP-2004 FORM-1 30-10-2009.pdf

1306-CHENP-2004 FORM-13 30-10-2009.pdf

1306-CHENP-2004 FORM-2 30-10-2009.pdf

1306-CHENP-2004 FORM-6 30-10-2009.pdf

1306-CHENP-2004 OTHER PATENT DOCUEMENT 09-10-2009.pdf

1306-chenp-2004 pct.pdf

1306-chenp-2004 petition.pdf

1306-CHENP-2004 POWER OF ATTORNEY 05-11-2009.pdf

1306-chenp-2004 power of attorney.pdf


Patent Number 237681
Indian Patent Application Number 1306/CHENP/2004
PG Journal Number 2/2010
Publication Date 08-Jan-2010
Grant Date 04-Jan-2010
Date of Filing 11-Jun-2004
Name of Patentee ASHLAND INC
Applicant Address 50 E. RIVERCENTER BOULEVARD, COVINGTON, KENTUCKY 41012-0391,
Inventors:
# Inventor's Name Inventor's Address
1 LOCKWOOD, Frances, E. 5326 Paris Pike, Georgetown, KY 40324
2 ZHANG, Zhiqiang 633 Poplar Springs Lane, Lexington, KY 40509
PCT International Classification Number D01F9/127
PCT International Application Number PCT/US02/38643
PCT International Filing date 2002-12-06
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10/021,767 2001-12-12 U.S.A.