Patent ID: 9637639
Date: 2017-05-02
CPC Classifications: B01F,C01B,C01P,C08K,C09C,C09D

Claim:
1. A stable dispersion comprising silanised colloidal silica particles having a weight ratio of silane to silica ranging from about 0.1 to about 1.5, and at least one organic compound containing at least two hydroxyl groups, wherein the silanised colliodal silcia particles is substantially unmodified with respect to monofunctional alcohol such that less than about 10 wt % of the silanised colloidal silica particles are modified by a monofunctional alcohol, wherein the dispersion is substantially free of any monofunctional alcohol, wherein the water content in the dispersion is below about 10 wt %, wherein a viscosity of the dispersion is increased less than 2 times over a period of 2 months, and further wherein the dispersion does not appear in an inhomogeneous form.