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US 12,317,918 B2Granted
Wrapper for aerosol delivery products and aerosol delivery products made therefrom
AssigneeSWM Holdings US, LLC
InventorsBruno Stefani, Lanig Le Bec
Life of this patent
Estimating the term…
Abstract
A wrapper well suited for use in aerosol delivery products, such as heat but not burn sticks is disclosed. The wrapper includes a base web made from cellulosic fibers combined with filler particles. The base web can be coated on at least one side with a permeability reducing composition and/or treated with a flame retardant salt. The base web is constructed with a basis weight, bulk, and permeability so as to produce aerosol delivery sticks with low combustion characteristics.
Claims21
A wrapper for a heat but not burn stick comprising:
- a base web comprising cellulosic fibers combined with a flame retardant filler, the base web having a first side and a second and opposite side, the flame retardant filler being present in the base web in an amount of from about 18% to about 55% by weight, the base web having a bulk of less than about 1.7 cc/g, a basis weight of greater than 50 gsm to about 85 gsm, and having a permeability of about 55 mL/min or less.
A wrapper for a heat but not burn stick comprising:
- a base web comprising cellulosic fibers combined with a filler, the base web having a first side and a second and opposite side, the filler being present in the base web in an amount of from about 18% to about 55% by weight, the base web having a bulk of less than about 1.7 cc/g, a basis weight of greater than 50 gsm to about 85 gsm, and having a permeability of about 55 mL/min or less, and wherein the wrapper further comprises a coating disposed on the first side of the base web, the coating comprising a permeability reducing composition combined with a phosphorus-based flame retardant.
Dependencies are inferred from the claim text.