Endodontics Sealer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Dec 25, 2008
app pub date -
Jun 20, 2007
filing date -
Jun 20, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention discloses an endodontic sealer which comprises a urethane-acrylate oligomer, a diluting monomer, at least one photo-initiator, at least one thermal-initiator, and a filler, wherein the urethane-acrylate oligomer is obtained by firstly reacting the acrylate with the diisocyanate to form an intermediate with only one isocyanate group, and then reacting the intermediate with the polyol to form the desired urethane-acrylate oligomer.
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