Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2006-06-19
2010-06-01
Witherspoon, Sikarl A (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S405000
Reexamination Certificate
active
07728159
ABSTRACT:
The invention relates to new compounds of the formula, wherein R and R1are each independently hydrogen, a linear or branched C1-40alkyl, C2-40alkenyl or C2-40alkynyl group, an aryl or C1-40alkylaryl group or an optionally complex metal ion Mn+
wherein n is an integer from 1 to 8; the free valences of the silicate oxygen atoms are saturated by one or more of: silicon atoms of other groups of the formula, hydrogen, a linear or branched C1-12alkyl group or by cross-linking bridge members R3qM1(OR2)mOk/2or Al(OR2)3-pOp/2or R3Al(OR−)2-1O1/2; wherein M1is Si or Ti; R2is linear or branched C1-12alkyl group; and R3is alinear or branched C1-6alkyl group; k is an integer from 1 to 4 and q and m are integers from 0 to 2; such that M+k+q=4; and p is an integer from 1 to 3; and r is an integer from 1 to 2; or other known oxo metal bridging systems; x, y and z are integers such that the radio of x:y+z, varies from 0.00001 to 100,000 with the fragments [O3/2SiCH(CH2PO(OR)(OR1))CH2CH2SiO3/2]xand [O3/2SiCH2CH2PO(OR)(OR1)]yalways present whilst the integer z varies from 0 to 200y. The compounds are useful as catalysts for a wide variety of reactions and have the advantages that they can be prepared in a one-pot reaction and functional group losding can be tailored to be at a required level. In addition, the compounds have high chemical and thermal stability, fixed and rigid structures, are insoluble in organic solvents, high resistance to ageing, and can easily be purified and reused.
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Sullivan Alice Caroline
Wilson John Robert Howe
McConathy Evelyn H.
Montgomery, McCracken, Walker & Rhoads LLP
Nwaonicha Chukwuma O
Phosphonics Limited
Witherspoon Sikarl A
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