Endodontics sealer

Details Endodontics sealer Endodontics sealer

2011-07-12

2011-07-12

Eashoo, Mark (Department: 1767)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C433S224000, C433S026000, C433S228100, C522S096000, C522S097000, C106S035000

Reexamination Certificate

active

07977406

ABSTRACT:
The present invention discloses an endodontic sealer which comprises a urethane-monoacrylate oligomer, a diluting monomer, at least one photo-initiator, at least one thermal-initiator, and a filler, wherein the urethane-monoacrylate 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-monoacrylate oligomer.

REFERENCES:
patent: 5263861 (1993-11-01), Cohen et al.
patent: 6353041 (2002-03-01), Qian
patent: 2003/0045599 (2003-03-01), Khudyakov et al.
patent: 2005/0027033 (2005-02-01), Knaack et al.
patent: 2005/0107562 (2005-05-01), Leberfinger et al.
DESMOPHEN 2001 KS product information; Bayer MaterialScience LLC, Feb. 1997.

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