Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2007-07-03
2007-07-03
O'Sullivan, Peter (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C560S338000
Reexamination Certificate
active
10947103
ABSTRACT:
Method of preparing diaminodiphenylmethane and higher homologues thereof from aniline and formaldehyde in the presence of heterogeneous solid acid catalysts selected from (a) delaminated zeolites and/or (b) metal silicate catalysts having an ordered mesoporous pore structure and/or (c) delaminated phyllosilicates.
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Bosman Joris Karel Peter
Botella Asuncion Pablo
Corma Avelino
Mitchell Christopher John
Brown Ron D.
Graham Nicole
Huntsman International LLC
O'Sullivan Peter
LandOfFree
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