Compositions: coating or plastic – Coating or plastic compositions – Dental
Patent
1992-01-30
1992-12-22
Group, Karl
Compositions: coating or plastic
Coating or plastic compositions
Dental
4332121, 433208, 501 18, 501 21, 501 67, A61C 13083, C03C 802
Patent
active
051731142
ABSTRACT:
The present invention relates to a ceramic basal layer for opacifying the metal coping of a ceramo-metallic dental reconstruction.
The ceramic basal layer for opacifying the metal coping of a ceramo-metallic dental reconstruction consists of an undercoat of opaque slip produced from a glass frit high in fluxes and in particular in B.sub.2 O.sub.3, covered with an opaque layer produced from a glass frit high in opacifying metal oxides and containing approximately 30% by weight of refractory particles with a particle size of between approximately 40 microns and approximately 100 microns.
REFERENCES:
patent: 3383344 (1968-05-01), Gill
patent: 4196004 (1980-04-01), Berretz
patent: 4215033 (1980-07-01), Bowen
patent: 4437192 (1984-03-01), Fujiu et al.
Chemical Abstracts, vol. 89, No. 22, Nov. 27, 1978, Ref. No. 186102a, p. 377.
Group Karl
Suissor, S.A.
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