Back to results
US 2019/0240118 A1Published application
Hydrophilic impression material with improved storage stability
AssigneeDENTSPLY SIRONA Inc.
InventorChristos ANGELETAKIS
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a dental impression material that includes a two part addition curing silicone composition. The disclosed impression material contains a surfactant system composed of a fluorosurfactant and a fatty alcohol ethoxylate. The impression material disclosed herein exhibits improved storage stability than known systems using fluorosurfactants and silicone ether compounds.
Claims2
An impression material comprising a catalyst part and a base part,
- the catalyst part comprises a curable organopolysiloxane polymer, a catalyst, and at least one filler;
- the base part comprises a curable organopolysiloxane polymer, an organopolysiloxane compound capable of crosslinking said curable organopolysiloxane polymer, at least one filler and a combination of surfactants;
- wherein the combination of surfactants of the base part includes fluoroaliphatic polyoxyethylene type surfactant, and a monofunctional alcohol alkoxylate type surfactant;
- wherein the fluoroaliphatic polyoxyethylene type surfactant is a C6 perfluorinated aliphatic chain bonded to a polyoxyethylene fragment giving an overall molecular weight range of from 400 to 800;
- and
- wherein the monofunctional alcohol alkoxylate type surfactant is
- wherein the sum of m and n is 9 or 10.
4 more elements
Dependencies are inferred from the claim text.