Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2007-10-02
2007-10-02
Nazario-Gonzalez, Porfirio (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C423S579000
Reexamination Certificate
active
10834663
ABSTRACT:
A process for preparing a metal oxide having groups of the general formula Iin-line-formulae description="In-line Formulae" end="lead"?—O1+n—SiR12−n—CH2—Y (I)in-line-formulae description="In-line Formulae" end="tail"?which involves reacting a solid having OH groups on the surface with silanes of the general formula IIin-line-formulae description="In-line Formulae" end="lead"?RO1+n—SiR12−n—CH2—Y (II)in-line-formulae description="In-line Formulae" end="tail"?whereY is a functional group —NRx2, —OC(O)C(R)═CH2, -halo, or —NCO. The reaction takes place rapidly and at reasonable temperatures and avoids production of significant quantities of decomposition products or byproducts, providing a metal oxide with a high proportion of Y functional groups.
REFERENCES:
patent: 6197863 (2001-03-01), Eck et al.
patent: 0896029 (2000-05-01), None
Chemical Abstract AN 1988:131899 corresp. to Wu, Xugin et al.
Chemical Abstract AN 1981:498753 corresp. to Morozova, E.M. et al.
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English Derwent Abstract AN 1999-122267 [11] corres. to EP 0896029.
Barthel Herbert
Gottschalk-Gaudig Torsten
Pfeiffer Juergen
Brooks & Kushman P.C.
Nazario-Gonzalez Porfirio
Wacker Chemie AG
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