Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2009-05-27
2011-11-01
Hendrickson, Stuart (Department: 1736)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S306000, C502S323000, C502S328000, C502S338000, C502S341000, C502S355000, C423S447100, C423S447300, C423S44500R, C423SDIG040, C977S742000, C977S842000, C977S843000
Reexamination Certificate
active
08048821
ABSTRACT:
The present invention relates to a catalyst composition for the synthesis of thin multi-walled carbon nanotube (MWCNT) and a method for manufacturing a catalyst composition. More particularly, this invention relates to a multi-component metal catalyst composition comprising i) main catalyst of Fe and Al, ii) inactive support of Mg and iii) optional co-catalyst at least one selected from Co, Ni, Cr, Mn, Mo, W, V, Sn, or Cu. Further, the present invention affords thin multi-walled carbon nanotube having 5˜20 nm of diameter and 100˜10,000 of aspect ratio in a high yield.
REFERENCES:
patent: 6518216 (2003-02-01), Han et al.
patent: 2001/0014307 (2001-08-01), Moy et al.
patent: 2002/0052289 (2002-05-01), Manzer et al.
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Choi Namsun
Jang Young-chan
Kim Dong Hwan
Lee Wan Sung
Ryu Sang-Hyo
Hendrickson Stuart
Kenyon & Kenyon LLP
Korea Kumho Petrochemical Co. Ltd.
Rump Richard M
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