Patent ID: 6776834
Filing Date: 2004-08-17
Classification: C03C,C04B

Abstract:
A composition for treating a silicon or siliceous containing substrate, said composition comprising at least:a first amount of a substantially water insoluble fluoro silane; an organic solvent in an amount sufficient for solubilizing the fluoro silane, and at least one ammonium and/or phosphonium compound selected from the group consisting of compounds with at least one ammonium group, compounds with at least one phosphonium group, compounds with at least one ammonium group and with at least one phosphonium group, and mixtures thereof, the weight ratio ammonium and/or phosphonium compound/water insoluble fluoro silane being greater than 0.005, in which the ammonium and/or phosphonium compound is a compound of general formula in which W is N or P andA1,A2, A3, A4 comprise an hydrocarbon group with 1 to 6 carbon atoms.