Thermal laminate rods for use in aerosol-generating articles

Patent metadata

Field	Value
Publication number	US-2016309781-A1
Application number	US-201415101269-A
Country	US
Kind code	A1
Filing date	Dec 4, 2014
Priority date	Dec 5, 2013
Publication date	Oct 27, 2016
Grant date	—

Abstract

A rod and a method of forming a rod are provided. The rod includes a gathered sheet of material circumscribed by a wrapper, in which the sheet of material is a co-laminated sheet comprising a layer of an aerosol-forming material and a layer of a thermally-conductive material and in which the wrapper is a metal foil. The method includes providing a continuous co-laminated sheet including an aerosol-forming material and a thermally-conductive material; gathering the co-laminated sheet transversely relative to its longitudinal axis; circumscribing the gathered co-laminated sheet with a metal foil wrapper to form a continuous rod; and severing the continuous rod into a plurality of discrete rods.

First claim

1 . A rod, comprising:
a gathered sheet of material circumscribed by a wrapper, wherein the sheet of material is a co-laminated sheet comprising a layer of an aerosol-forming material and a layer of a thermally-conductive material, and wherein the wrapper is a metal foil.

2 . The rod according to claim 1 , wherein the thermally-conductive material is a metal foil.

3 . The rod according to claim 1 , wherein the metal foil of the wrapper and/or the thermally-conductive material is aluminium foil.

4 . The rod according to claim 1 , wherein the aerosol-forming material comprises tobacco.

5 . The rod according to claim 1 , wherein the co-laminated sheet comprises the layer of the thermally-conductive material sandwiched between two layers of the aerosol-forming material.

6 . The rod according to claim 1 , wherein the co-laminated sheet is textured.

7 . The rod according to claim 6 , wherein the co-laminated sheet is crimped.

8 . The rod according to claim 1 , further comprising one or more further sheets of material, gathered together with the co-laminated sheet and circumscribed by the wrapper.

9 . A heated aerosol-generated article, comprising a rod according to claim 1 .

10 . A heated aerosol-generating article, comprising a combustible heat source and an aerosol-forming substrate comprising a rod according to claim 1 , located downstream of the combustible heat source.

11 . A heated aerosol-generating article for use in an electrically-heated aerosol-generating system comprising an aerosol-forming substrate, comprising a rod according to claim 1 .

12 . A method of forming a rod, comprising:
providing a continuous co-laminated sheet comprising an aerosol-forming material and a thermally-conductive material; gathering the co-laminated sheet transversely relative to its longitudinal axis; circumscribing the gathered co-laminated sheet with a metal foil wrapper to form a continuous rod; and severing the continuous rod into a plurality of discrete rods.

Assignees

• Philip Morris Products Sa

Inventors

• Malgat Alexandre
• Roudier Stephane
• Borges De Couraca Ana Carolina
• Lavanchy Frederic
• Meyer Cedric

Classifications

• A61M15/06

  Inhaling appliances shaped like cigars, cigarettes or pipes · CPC title

• A62C3/00

  Fire prevention, containment or extinguishing specially adapted for particular objects or places ({in oil wells E21B29/08, A62C35/00; in mines or tunnels E21F5/00} ; for nuclear reactors G21C9/04) · CPC title

• A24D1/02 Primary

  with special covers · CPC title

• A24F47/008 Primary

  Human Necessities · mapped topic

• A24F47/006

  Human Necessities · mapped topic