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Process for making fullerenes by the laser evaporation of carbon

Patent 5300203 Issued on April 5, 1994. Estimated Expiration Date: Icon_subject November 27, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Electric arc process for making fullerenes Patent #: 5227038
Issued on: 07/13/1993
Inventor: Smalley, et al.

Inventor

Assignee

Application

No. 799404 filed on 11/27/1991

US Classes:

204/157.41, Using laser204/157.47, Carbon containing product produced423/445BFullerene (e.g., C60, C70, etc.)

Examiners

Primary: Lewis, Michael
Assistant: Kalinchak, Stephen G.

Attorney, Agent or Firm

Foreign Patent References

  • 9204279 WO 03/13/1992
  • 1587000 SU. 08/13/1990

International Class

C01B 031/00

Abstract

Fullerenes are generated by vaporizing carbon with a laser beam and maintaining the vaporized carbon at conditions selected to promote fullerene growth and formation. This method of fullerene generation may be used to form new compounds including fullerenes surrounding one or more metal atoms, and fullerenes wherein one or more carbon atoms have been substituted with boron or nitrogen.

Other References

  • Holczer eta l., "Alkali Fulleride Superconductors: Syntasesis Compositon, and Diamagnetic Shielding", Science, vol. 252, pp. 1154-1157 May 24, 1991
  • Baum, "Flood of Fullerene Discoveries Continues Unabated", C & EN pp. 25-33, Jun. 1, 1992
  • Bae et al. Mat. Res. Soc. Symp. Proc., vol. 206, pp. 733-741 Nov. 29, 1990
  • Lefevre, Annales Astrophysiq, "Etude De Poussieres De Fer Et De Carbone," Tome 30, Annee 1967, Fasc. 4, pp. 731-738
  • J. Lefvre, "An Experimental Study of the Dust of Iron, Carbon, Silicon Carbide and Silica," Astron. & Astrophys, 5, (1970), pp. 37-44
  • K. L. Day, D. R. Huffman, "Measured Extinction Efficiency of Graphite Smoke in the Region 1200-6000 Å," Nature Physical Science, vol. 243, May 21, 1973, pp. 50-51
  • H. W. Kroto, J. R. Health, S. C. O'Brian, R. F. Curl & R. E. Smalley, "C60 : Buckminsterfullerene," Nature, vol. 318, No. 6042, Nov. 14-20, 1985
  • J. R. Heath, S. C. O'Brien, Q. Zhang, Y. Liu, R. F. Curl, H. W. Kroto, F. K. Tittel, and R. E. Smalley, "Lanhanum Complexes of Spheroidal Carbon Shells," Journal of the American Chemical Society, vol. 107, (1985), pp. 7779-7780
  • Q. L. Zhang, S. C. O'Brien, J. R. Health, Y. Liu, R. F. Curl, H. W. Kroto, and R. E. Smalley, "Reactivity of Large Carbon Clusters: Spheroidal Carbon Shells and Their Possible Relevance to the Formation and Morphology of Soot," The Journal of Physical Chemistry, vol. 90, No. 4, (1986), pp. 525-528
  • Sumion Iijima, "The 60-Carbon Cluster Has Been Revealed," The Journal of Physical Chemistry, vol. 91, (1987), pp. 3466-3467
  • Ph. Gerhardt, S. P. Loffler and K. H. Homann, "Polyhedral Carbon Ions in Hydrocarbon Flames," Chemical Physics Letters, vol. 137, No. 4, Jun. 19, 1987, pp. 306-310
  • D. R. Huffman, "Methods of Difficulties in Laboratory Studies of Cosmic Dust Analogues," Experiments On Cosmic Dust Analogues, vol. 149, Sep. 8-12, 1987, pp. 25-41
  • R. F. Curl and R. E. Smalley, "Probing C60," Science, vol. 242, Nov. 18, 1988, pp. 1017-1022
  • W. Kratschmer, K. Fostiropoulos, D. R. Huffman, "Search For The UV and IR Spectra of C60 in Laboratory-Produced Carbon Dust," Dusty Objects In the Universe, Sep. 8-13, 1989, pp. 89-93
  • W. Kratschmer, K. Fostiropoulos and D. R. Huffman, "The Infrared and Ultraviolet Absorption Spectra of Laboratory-Produced Carbon Dust: Evidence for the Presence of the C60 Molecule," Chemical Physics Letters, vol. 170, No. 2, 3, Jul, 6, 1990, pp. 167-170
  • Ajie, et al., "Characterization of the Soluble All-Carbon Molecules C60 and C70," The Journal of Physical Chemistry, vol. 94, No. 24, (1990), pp. 8630-8633
  • R. E. Haufler, J. Conceicao, L. P. F. Chibante, Y. Chai, N. E. Byrne, S. Flanagan, M. M. Haley, S. C. O'Brien, C. Pan, Z. Xiao, W. E. Billupe, M. A. Ciufolini, R. E. Hauge, J. L. Margrave, L. J. Wilson, R. F. Curl, and R. E. Smalley, "Efficient Production of C60 (Buckminsterfullerene), C60 H36 and the Solvated Buckide Ion," The Journal of Physical Chemistry, vol. 94, No. 24, (1990), pp. 8634-8636
  • "Buckminsterfullerene Bulletin", Diamond Depositions: Science and Technology, Nov, 1990, pp. 11-13
  • R. E. Haufler, Y. Chai, L. P. F. Chibante, J. Conceicao, Changming Jin, Lai-Sheng Wang, Shigeo Manyama and R. E. Smalley, "Carbon Arc Generation of C60," Mat. Res. Sco
  • This invention was made with Government support and the Government has certain rights in the inventio
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