Abstract: Highly redisperisble precipitated silica with no or virtually no coarse fraction is prepared by precipitating silica in an aqueous environment, modifying the silica to introduce hydrophobic groups in a homogeneous manner employing an organosiliconate, at a pH of 8-10 and a defined addition rate based on the BET surface area of the silica, followed by liquid milling.

Abstract: Aqueous dispersions of partly hydrophobic silica exhibit a smooth change in viscosity with pH over a wide pH range, without gelling or exhibiting local maxima. The dispersions have numerous uses, including use in O/W Pickering emulsions.

Abstract: Organopolysiloxane compositions which are stable on storage in the absence of moisture and can be crosslinked at room temperature on admission of moisture are based on organosilicon compounds containing at least two hydrolyzable groups, and contain, as catalyst, at least one titanium compound of the formula Ti(OR)4-n[(OR1)x—OR2]n  (I) where R may be identical or different and are monovalent, substituted or unsubstituted hydrocarbon radicals, R1 may be identical or different and are divalent, substituted or unsubstituted hydrocarbon radicals, R2 may be identical or different and are as defined for R, n is 1, 2, 3 or 4 and x is an integer greater than or equal to 1.