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US 6,555,491 B1Granted
Compositions of water soluble glass
AssigneeGiltech Limited
InventorDavid Michael Healy
Life of this patent
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Abstract
A composition for a water soluble glass is described. The composition is unusual in that it contains no or very small quantities (up to 5 mole %) of alkali metal compounds. The composition typically comprises: P2O5: 30 to 60 mole %; CaO: 20 to 35 mole %; MgO: 15 to 25 mole %; ZnO: 0 to 10 mole %; and optionally may contain: Ag2O or Ag2O3: 0 to 5 mole %; and/or total alkali metal compounds (e.g. Na2O and/or K2O): 0 to 5 mole %. The composition is especially suitable for processing into water soluble glass fibers or wool.
Claims9
A water soluble glass fiber comprising:
- P2O5:
- 45 to 55 mole %;
- CaO:
- 25 to 30 mole %;
- MgO:
- 18 to 22 mole %;
- ZnO:
- 0 to 10 mole %;
- and
- up to a total of 5 mole % of alkali metal compounds or other additive compounds.
7 more elements
Dependencies are inferred from the claim text.