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US 11,078,110 B2Granted
Glass wool, and vacuum heat insulation material using same
AssigneeSaint-Gobain Isover
InventorShinji Endo
Life of this patent
Estimating the term…
Abstract
A glass wool which has physical properties required for a heat insulation material, can be produced industrially, can have reduced hygroscopicity, and has a novel compounding composition. The glass wool having the following glass composition: SiO2: 60.0 to 65.0% by mass inclusive, Al2O3: 0.5 to 2.0% by mass inclusive, Na2O and K2O: 13.0 to 17.0% by mass inclusive, MgO and CaO: 8.0 to 12.0% by mass inclusive, B2O3: 5.0 to 12.0% by mass inclusive, and others: a remainder.
Claims10
Glass wool having the following glass composition consisting of:
- SiO2:
- 60.0 wt % to 65.0 wt %,
- Al2O3:
- more than 1.0 wt % to 2.0 wt %,
- Na2O and K2O:
- 13.0 wt % to 17.0 wt %,
- MgO and CaO:
- 8.0 wt % to 12.0 wt %,
- B2O3:
- 5.0 wt % to 12.0 wt %, and
- one or more other components:
- balance,
- wherein the one or more other components are selected from the group consisting of S2O3, Fe2O3, MnO, BaO, TiO2, SrO, PbO, Cr2O3, ZnO, Rb2O and Cs2O.
10 more elements
Dependencies are inferred from the claim text.