Patent ID: 6524372
Filing Date: 2003-02-25
Classification: B01D,C01B,C07F

Abstract:
A compound of formula (I): in which:W1, W2 and W3, which are identical or different, each represent, independently of one another, a divalent radical chosen from those represented by the general formula (A): â€”[(CT1T2)nâ€”N[(R4)]pâ€”(CT3T4)m]lâ€”â€ƒâ€ƒ(A) â€ƒin which: p represents an integer equal to 0 or to 1, l represents an integer equal to 1 or to 2, n and m, which are identical or different, each represent, independently of one another, an integer less than or equal to 3 and greater than or equal to 1, T1, T2, T3 and T4, which are identical or different, either each represent, independently of one another, a hydrogen atom, a linear or branched alkyl radical comprising from 1 to 15 carbon atoms or benzyl, [2-pyridyl)methyl], [3-pyridyl)methyl] or phenethyl or else CT1T2 and/or CT3T4 represent a divalent group â€”(C&boxH;O)â€”, R1, R2, R3 and R4 represent radical represented by the general formula (B): R5â€”Si(X1)(X2)(X3)â€ƒâ€ƒ(B) â€ƒin which: X1, X2 and X3, which are identical or different, each represent, independently of one another, a hydrogen atom, a halogen atom or an OR6 radical, in which R6 represents a hydrogen atom or an alkyl radical comprising from 1 to 4 carbon atoms, R5 represents a divalent radical derived from a saturated or unsaturated aliphatic hydrocarbon chain comprising from 1 to 10 carbon atoms, in which chain are optionally inserted one or more structural links chosen from the arylene group or the â€”Oâ€”, â€”Sâ€”, â€”Oâ€”C(&boxH;O)â€”, â€”N(R7)â€”C(&boxH;O)â€” or â€”N(R7)â€” fragments, in which fragments R7 represents a hydrogen atom, an aliphatic hydrocarbon radical comprising from 1 to 6 carbon atoms, a benzyl radical or a phenethyl radical, said chain being unsubstituted or substituted by one or more radicals chosen from halogen atoms, the hydroxyl group, alkyl radicals comprising from 1 to 4 carbon atoms or benzyl or phenethyl radicals.