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CURABLE COMPOSITION FOR PRODUCING A DENTAL COMPOSITE CROWN AND PROCESS OF PRODUCTION
专利权人:
3M INNOVATIVE PROPERTIES COMPANY
发明人:
Andreas Herrmann,Gioacchino Raia,Malte Korten,Oliver Kappler,Bernhard Hofmann,Adrian Eckert,Helmar Mayr,Reinhold Hecht,Gallus Schechner,Rainer Guggenberger
申请号:
US16622530
公开号:
US20200206092A1
申请日:
2018.06.05
申请国别(地区):
US
年份:
2020
代理人:
摘要:
The invention relates to A curable composition for producing dental composite crowns, the composition comprising a resin matrix comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, polymerizable urethane(meth)acrylate(s), wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety are used in excess over the polymerizable urethane(meth)acrylate(s), a filler matrix comprising nanocluster(s), fumed silica in an amount below 8 wt. % with respect to the weight of the whole composition, an initiator system comprising photoinitiator(s), organic dye(s), the curable composition not comprising softener in an amount of more than 5 wt. % with respect to the weight of the whole composition, the curable composition having a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s−;1. The invention also relates to a cured article obtained by radiation curing this curable composition by use of an additive-manufacturing method.
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中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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