Open-pore sintered glasses for use in electronic cigarettes
AssigneeSchott AG
InventorsUlrich Peuchert, Norbert Greulich-Hickmann, Philipp Treis, Yvonne Menke, Michael Kluge
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Abstract
A sintered body for use as a liquid reservoir in an electronic cigarette, medication administering devices, in thermally heated evaporators for fragrant substances is provided. The sintered body is made of open-pore sintered glass and has a porosity of greater than 50 vol %. The average pore size is in a range from 1 to 450 μm. The glass of the sintered body has a transition temperature Tg of at least 450° C.
Claims18
A sintered body for use as a liquid reservoir, comprising an open-pore sintered glass having a porosity of >50 vol % and an average pore size in a range from 90 to 450 μm, wherein the open-pore sintered glass comprises glass having a transition temperature of at least 450° C., wherein the open-pore sintered glass has a specific surface area that is at least 0.8 m2/g and smaller than 20 m2/g.
A sintered body for use as a liquid reservoir, comprising an open-pore sintered glass having a porosity of >50 vol % and an average pore size in a range from 1 to 450 μm, wherein the open-pore sintered glass comprises glass having a transition temperature of at least 450° C., wherein the glass comprises (in wt % on an oxide basis):
- SiO2
- 50 to 60 wt %;
- B2O3
- 8 to 12 wt %;
- Al2O3
- 8 to 12 wt %;
- and
- BaO
- 20 to 30 wt %.
A sintered body for use as a liquid reservoir, comprising an open-pore sintered glass having a porosity of >50 vol % and an average pore size in a range from 1 to 450 μm, wherein the open-pore sintered glass comprises glass having a transition temperature of at least 450° C., wherein the glass comprises (in wt % on an oxide basis):
- SiO2
- 58 to 65 wt %;
- B2O3
- 6 to 10.5 wt %;
- Al2O3
- 14 to 25 wt %;
- MgO
- 0 to 5 wt %;
- CaO
- 0 to 9 wt %;
- BaO
- 0 to 8 wt %;
- SrO
- 0 to 8 wt %;
- ZnO
- 0 to 2 wt %;
- and a total of MgO,
- CaO, and BaO is 8 to 18 wt %.
Dependencies are inferred from the claim text.