Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2006-08-01
2006-08-01
Berman, Susan (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C522S016000, C522S026000, C523S115000, C523S116000
Reexamination Certificate
active
07084182
ABSTRACT:
A photopolymerization initiator comprising (A) an α-diketone compound such as camphorquinone, (B1) an aliphatic amine compound such as triethanolamine or N-methyldiethanolamine, (B2) an aromatic amine compound such as ethyl p-dimethylaminobenzoate or N,N-dimethyl p-toluidine, and (C) a triazine compound substituted with a trihalomethyl group, such as 2,4,6-tris(trichloromethyl)-s-triazine or 2-phenyl-4,6-bis(trichloromethyl)-s-triazine. The photopolymerization initiator remains stable against the environmental light such as the indoor illumination light from a fluorescent lamp or the dental light illuminating the interior of the oral cavity, is excellently handled, is quickly cured by the irradiation with an intense light emitted from a light irradiator for polymerization, provides a cured body having excellent properties, can be stably preserved even at high temperatures, and is very useful as a dental composite resin.
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Akizumi Hironobu
Hara Tadashi
Kashimura Mutsumi
Kazama Hideki
Shimada Rumiko
Berman Susan
Sherman & Associates
Tokuyama Corporation
Tokuyama Dental Corporation
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