Compositions comprising dimeric or oligomeric ferrocenes

Details Compositions comprising dimeric or oligomeric ferrocenes Compositions comprising dimeric or oligomeric ferrocenes

2001-08-30

2008-11-18

Toomer, Cephia D (Department: 1797)

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

C044S358000, C044S359000

Reexamination Certificate

active

07452388

ABSTRACT:
The present invention relates to iron-organo compounds and the use of such compounds in the regeneration of particulate filter traps in combustion systems such as high-compression spontaneous ignition engines. The iron-organo compounds have the formula X-Y where X represents the group of formulaY represents the formulaeach A and B is independently an unsubstituted or substituted aromatic carbon ring or an unsubstituted or substituted aromatic heterocyclic ring; the or each Z is independently an unsubstituted or substituted divalent hydrocarbyl group; n is 0 or an integer of from 1 to 10.

REFERENCES:
patent: 2694721 (1954-11-01), Weinmayr
patent: 3350369 (1967-10-01), Rosenberg et al.
patent: 3673232 (1972-06-01), Talbot et al.
patent: 3989731 (1976-11-01), Talbot
patent: 4389220 (1983-06-01), Kracklauer
patent: 4946609 (1990-08-01), Pruess et al.
patent: WO-99/36488 (1999-07-01), None
“Regeneration of Particle Filters with Additives,” H. Jungbluth, et al., Fuels 1999, Jan. 20-21, 1999.

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