Photoepolymerization initiater

A technology of photopolymerization initiators and compounds, applied in dental preparations, dental prostheses, compression mold cups, etc., can solve the problem of decreased polymerization activity, and achieve the effects of high mechanical strength, high polymerization activity, and good storage stability
CN1537870AActive Publication Date: 2004-10-20TOKUYAMA CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TOKUYAMA CORP
Publication Date
2004-10-20

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Abstract

A photopolymerization initiator comprising (A) an alpha -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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Description

technical field

[0001] The present invention relates to a novel photopolymerization initiator useful for dental materials, photoresist materials, printing plate materials and holographic materials, especially for dental materials. More specifically, the present invention relates to a photopolymerization initiator that is more stable than conventional photopolymerization initiators under ambient light (with weak intensity), but which is stable under strong light such as from halogen lamps, xenon lamps, or laser diodes. Under the irradiation of a special irradiator, the polymerization is completed rapidly in a short period of time, so that highly cured objects can be obtained without reducing the activity even after a longer period of storage. Background technique

[0002] Various photopolymerization initiators capable of generating radicals or ions to polymerize polymerizable unsaturated compounds and cyclic compounds upon irradiation with light have ...

Claims

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