| abstract |
(57) [Summary]nThe invention relates to silicone materials which are particularly useful for taking impressions, for example dental impressions, which can be crosslinked to silicone elastomers by polyaddition reactions. The invention aims to provide a material which offers a compromise between the following properties: flowability (uncrosslinked state), hydrophilicity (uncrosslinked and crosslinked state) and high mechanical properties Properties (crosslinked state). The invention features the introduction of the following into the crosslinkable silicone material: (i) agents that provide two-stage compatibility of the filler (eg, silazane, hydroxyl-containing for the first stage) Siloxanes, amines, organic acids; and, for the second stage, silazanes), a suspension obtained by treating in the presence of a polyorganosiloxane having a Si-alkenyl function. Fillers comprising reinforcing silica in body form; and (2i) one or more nonionic, ionic or amphoteric surfactants. The silicone material is particularly useful for producing impressions, for example, dental impressions and for producing pads as used in pad printing technology. |