NOVEL DENTAL APPLIANCES AND METHODS FOR THEIR FABRICATION

摘要

The invention consists of a rapidly crosslinkable, two-component silicone elastomer together with a specially designed tray that serves as a form for the silicone resin and forms an integral portion of a dental appliance.

主权项

1. A resin substantially free of surfactant comprising:
(a) a first component comprising
(i) a cross-linkable, vinyl-functional poly(dimethylsiloxane) having a vinyl content between 0.02 and 0.08 mmol/g and an amount of polydisperse silica of particle size 5 to 50 nm sufficient to impart a viscosity between 250,000 cps and 1.5×106 cps to said first component; and(ii) a platinum catalyst; and (b) a second component comprising
(i) a cross-linkable, vinyl-functional poly(dimethylsiloxane) having a vinyl content between 0.02 and 0.08 mmol/g and an amount of polydisperse silica of particle size 5 to 50 nm sufficient to impart a viscosity between 250,000 cps and 1.5×106 cps to said second component; and(ii) a linear, branched or cyclic hydrofunctional poly(siloxane) having a Si—H content from 1.4 to 5.0 mmol/g and viscosity of 40-300 cps; said cross-linkable, vinyl-functional poly(dimethylsiloxane)s being substantially free of monomers containing quaternary silicon-oxygen bonded repeat units.