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Silicone coated metal oxide particles
standardposted on 2006-10-12, 00:00 authored by G Trotter, Takuya Tsuzuki
A process for applying a silicone coating to metal oxide particles is described. The process comprises the steps of: preparing a mixture of an aqueous suspension of metal oxide particles and an aqueous solution of water-soluble organosilicon monomers; and, adding a pH-lowering agent to the mixture so as to initiate polymerisation of the water-soluble organosilicon monomers and form silicone coated metal oxide particles. The process does not require the use of an organic solvent.