Compositions comprising dimeric or oligomeric ferrocenes
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United States of America Patent
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Nov 18, 2008
Grant Date -
Oct 9, 2003
app pub date -
Aug 30, 2001
filing date -
Aug 31, 2000
priority date (Note) -
Expired
status (Latency Note)
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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 formula ##STR00001## Y represents the formula ##STR00002## each 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.
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