Processes for preparing carbon fibers using gaseous sulfur trioxide

Barton, Bryan E.; Lysenko, Zenon; Bernius, Mark T.; Hukkanen, Eric J.

Title: Processes for preparing carbon fibers using gaseous sulfur trioxide

Patent · Tue Jan 05 00:00:00 EST 2016

OSTI ID:1234691

Barton, Bryan E.; Lysenko, Zenon; Bernius, Mark T.; Hukkanen, Eric J.

Disclosed herein are processes for preparing carbonized polymers, such as carbon fibers, comprising: sulfonating a polymer with a sulfonating agent that comprises SO.sub.3 gas to form a sulfonated polymer; treating the sulfonated polymer with a heated solvent, wherein the temperature of said solvent is at least 95.degree. C.; and carbonizing the resulting product by heating it to a temperature of 500-3000.degree. C.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: NFE-10-02991

Assignee:: Dow Global Technologies LLC (Midland, MI)

Patent Number(s):: 9,228,276

Application Number:: 14/413,457

OSTI ID:: 1234691

Resource Relation:: Patent File Date: 2013 Jul 03

Country of Publication:: United States

Language:: English

References (8)

Amorphous carbon fibres from linear low density polyethylene Postema, A. R.; De Groot, H.; Pennings, A. J. Journal of Materials Science, Vol. 25, Issue 10, p. 4216-4222 https://doi.org/10.1007/BF00581075	journal	October 1990
The effect of diameter on the mechanical properties of amorphous carbon fibres from linear low density polyethylene Penning, J. P.; Lagcher, R.; Pennings, A. J. Polymer Bulletin, Vol. 25, Issue 3, p. 405-412 https://doi.org/10.1007/BF00316913	journal	March 1991
Carbon Fibers from Polyethylene-Based Precursors Zhang, Dong; Bhat, Gajanan S. Materials and Manufacturing Processes, Vol. 9, Issue 2, p. 221-235 https://doi.org/10.1080/10426919408934900	journal	March 1994
Use of sulfonation procedure for the development of thermally stabilized isotactic polypropylene fibers prior to carbonization Karacan, Ismail; Benli, Huseyin Journal of Applied Polymer Science, Vol. 123, Issue 1, p. 234-245 https://doi.org/10.1002/app.34454	journal	July 2011
Process for production of carbon fiber Horikiri, Shozo; Iseki, Jiro; Minobe, Masao https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4070446 US Patent Document 4,070,446	patent	January 1978
Method for producing strong-acid cation exchange fiber by treating fibrous polyethylene with gaseous sulfur trioxide Sano, Takezo; Kobayashi, Akira; Inoue, Haruo https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4113666 US Patent Document 4,113,666	patent	September 1978
Multi-phase selective mass transfer through a membrane Ehrenberg, Scott G.; Johnson, Brian Scott; Cao, Liwei https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8500960 US Patent Document 8,500,960	patent	August 2013
Method for Production of Carbon Nanofiber Mat or Carbon Paper Naskar, Amit K. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20130214442 US Patent Document 13/402139; 20130214442	patent-application	August 2013

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