Polyether-based dental impression material curable by...

Details Polyether-based dental impression material curable by... Polyether-based dental impression material curable by...

2006-02-21

2009-12-01

Harlan, Robert D. (Department: 1796)

Drug, bio-affecting and body treating compositions

Dentifrices

C523S107000, C523S109000, C524S264000, C524S448000

Reexamination Certificate

active

07625551

ABSTRACT:
Two-part dental impression material curable by a metathesis reaction comprising a base paste with first and second resin components each containing at least two cycloolefin groups per molecule curable by a metathesis reaction with a metathesis catalyst. The first resin includes a urethane polyether or polyester carboxylate backbone terminated with the cycloolefin groups and the second resin includes an alkoxy-siloxane polyether or polyester carboxylate backbone terminated with the cycloolefin groups. The metathesis catalyst can be a ruthenium carbene complex catalyst.

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