IP Library Granted Patent US 7,428,905
Granted Patent B2
US 7,428,905 · App. 10/902,760 · Granted Sep 30, 2008

Method of making smokeable tobacco substitute filler having an increased fill value

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Quick Facts
Patent No.
US 7,428,905
App. No.
10/902,760
Granted
Sep 30, 2008
Kind
B2
Abstract

The invention relates to a smokeable filler material having an increased fill value and processes for making the smokeable filler. The smokeable filler has a fill value of at least 5 cc/g and comprises a cellulose material, a humectant, an inert filler, a binder, and optionally a tobacco containing material.

Claims (18)

1. A process for making a smokeable filler comprising the steps of:

mixing a cellulose containing material selected from the group consisting of wood, cotton or flax to form a fibrous material product;

refining said fibrous material product;

mixing an inert material which has been precipitated and refined resulting in a very fine particle size in a range of about 0.5 μm to 1 μm, selected from the group consisting of chitosan, liposan, calcium carbonate, calcium oxide, magnesium oxide, and combinations thereof with said fibrous material product to form a fiber containing material;

making said fiber containing material into sheets via a paper making process; and

cutting said sheets into strips forming said smokeable filler, wherein said smokeable filler has a fill value in excess of 5 cc/g.

2. The process for making a smokeable filler in claim 1 wherein said mixing a cellulose containing material step further comprises the mixing of a tobacco containing material wherein said tobacco containing material may make up to 50% by weight of said smokeable filler.

3. The process for making a smokeable filler in claim 1 wherein said sheets are sprayed with a tobacco extract prior to said cutting of said sheets.

4. The process for making a smokeable filler in claim 1 wherein said tobacco extract further has a humectant.

5. The process for making a smokeable filler in claim 4 wherein said humectant is in an amount that makes up to 15% by weight of said smokeable filler.

6. A process for making a smokeable filler comprising the steps of:

mixing a refined cellulose containing material selected from the group consisting of wood, cotton or flax, a tobacco containing material in an amount comprising up to 50% by weight of said smokeable filler, and an inert material, which has been precipitated and refined resulting in a very fine particle size in a range of about 0.5 μm to 1 μm, to form a fibrous material product;

mixing a binder solution with said fibrous material product to form a fiber containing material;

adding a humectant to said fiber containing material;

making said fiber containing material into sheets; and

cutting said sheets into strips forming said smokeable filler, wherein said smokeable filler has a fill value in excess of 5 cc/g.

7. The process of claim 6 wherein said sheet is formed by a bandcast process.

8. The process of claim 6 wherein said sheet is formed by an extrusion process.

Assignments (3)
SECURITY INTEREST Recorded Jun 28, 2006
From: R.J. REYNOLDS TOBACCO COMPANY
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 017906/0671 →
NUNC PRO TUNC ASSIGNMENT Recorded Apr 27, 2006
From: BROWN & WILLIAMSON HOLDINGS, INC. (FORMERLY KNOWN AS BROWN & WILLIAMSON TOBACCO CORPORATION)
To: R.J. REYNOLDS TOBACCO COMPANY
Reel/Frame 017534/0989 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2004
From: MUA, JOHN-PAUL
To: BROWN & WILLIAMSON TOBACCO CORPORATION
Reel/Frame 015643/0163 →