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US 11,992,058 B2Granted
Liquid supply system for use in aerosol-generating devices
AssigneePhilip Morris Products S.A.
InventorIrene Taurino
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Abstract
A liquid supply system for use with an aerosol-generating device, the liquid supply system comprising a liquid retention material (136), a liquid flow channel extending from the liquid retention material and a barrier (125) disposed in the liquid flow channel, the barrier having a threshold temperature between 60° C. and 120° C., wherein the barrier is impermeable to liquid below its threshold temperature and the barrier becomes reversibly permeable to liquid above the threshold temperature.
Claims14
A liquid supply system for use with an aerosol-generating device, the liquid supply system comprising:
- a liquid retention material;
- a liquid flow channel extending from the liquid retention material;
- and
- a barrier disposed in the liquid flow channel, the barrier having a threshold temperature between 60° C. and 120° C., wherein the barrier is impermeable to liquid below its threshold temperature and the barrier becomes reversibly permeable to liquid above the threshold temperature, wherein the barrier comprises a polymer layer and a temperature reactive material dispersed therein, and wherein the temperature reactive material forms pores in the polymer layer above the threshold temperature.
1 more element
Dependencies are inferred from the claim text.