Organofunctional surface-modified metal oxides

Details Organofunctional surface-modified metal oxides Organofunctional surface-modified metal oxides

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.
Chemical Abstract AN 1981:85024 corresp. to Morozova, E.M. et al.
Chemical Abstract AN 1980:23004 corresp. to Schulz, D. et al.
Chemical Abstract AN 1966:404543 corresp. to Tertykh, V.A. et al.
English Derwent Abstract AN 1999-122267 [11] corres. to EP 0896029.

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