Radio-opaque glass fibres and dental prosthetic member containing said fibres
AssigneeSociete De Recherches Techniques Dentaires—Rtd
InventorsAnne Berthereau, Jerome Blaizot
Life of this patent
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Abstract
A glass thread adapted for reinforcing polymeric materials includes a plurality of filaments having a chemical composition that includes the following constituents within the limits defined below in weight percent: SiO2 40 to 60 Al2O3 0 to 5 CaO 1 to 15 MgO 1 to 15 BaO 2 to 15 SrO 12 to 20 ZnO 0.5 to 10 Na2O + K2O + Li2O 0 to 5 TiO2 3 to 20 Prosthetic members including such threads are also described.
Claims13
Glass thread adapted for reinforcing polymeric materials and comprising a plurality of filaments having a chemical composition that comprises the following constituents within the limits defined below in weight percent:
- SiO2
- 40 to 60
- Al2O3
- 0 to 5
- CaO
- 1 to 15
- MgO
- 1 to 15
- BaO
- 2 to 15
- SrO
- 12 to 20
- ZnO
- 0.5 to 10
- Na2O + K2O + Li2O
- 0 to 5
- TiO2
- 3 to 20.
Dependencies are inferred from the claim text.