FILLED POLYMERISABLE DENTAL MATERIAL AND METHOD FOR THE PRODUCTION THEREOF

European Patent Office Patent

PATENT NO 1720506
APP PUB NO EP-1720506-A1
SERIAL NO

05715666

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Abstract

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Polymerizable dental material comprises an organic binder, a nanoparticulate filler and a second filler comprising ground particles with an average size of 0.2-50 mu m or spherical particles with an average size of 0.1-50 mu m. At least 50 wt.% of the nanoparticles have a diameter of less than 100 nm and at least 20% of the nanoparticles are aggregated particles. An independent claim is also included for producing dental materials by treating an at least partially agglomerated and/or aggregated nanoparticulate filler with an organic surface-modifying agent, working the nanoparticulate filler into an organic binder until at least 50 wt.% of the nanoparticles have a diameter of less than 100 nm, and working a second filler as above into the binder.

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Patent Owner(s)

Patent OwnerAddress
ERNST MUHLBAUER GMBH & CO KGDE25870 NORDERFRIEDRICHSKOOG

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Inventor(s)

Inventor Name Address
NEFFGEN STEPHAN 22547 HAMBURG
HARTWIG ANDREAS 28359 BREMEN
SEBALD MONIKA 28359 BREMEN
HAUSER KARSTEN 22529 HAMBURG

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