PLASTIC FROM TOBACCO BIOMASS

• US 20120211016A1
• Filed: 02/18/2011
• Published: 08/23/2012
• Est. Priority Date: 02/18/2011
• Status: Abandoned Application

• Current Assignee: North Carolina State University (University of North Carolina System)
• Original Assignee: North Carolina State University (University of North Carolina System)
• Inventors: BYRD, MEDWICK VAUGHAN Jr., Johnson, Carlton Wesley
• Application Number:
  US13/030,709
• Publication Number:
  US 20120211016A1
• Time in Patent Office: Days
• US Class Current: 131/352
• CPC Class Codes: A24B 15/287 by inorganic substances only
• CPC Class Codes: A24B 15/30 by organic substances A24B15/281 takes precedence
• CPC Class Codes: A24D 3/08 of organic materials as carrier or major constituent of ion exchange materials A24D3/12
• CPC Class Codes: C08H 8/00 Macromolecular compounds derived from lignocellulosic materials pretreatment thereof B27N
• CPC Class Codes: Y10T 428/249921 Web or sheet containing structurally defined element or component

Abstract

A tobacco bioplastic composition for use in, on or around a smoking article or a smokeless tobacco composition is provided, the tobacco bioplastic composition being derived from the Nicotiana species. The tobacco bioplastic composition can be derived from Nicotiana species biomass or from reconstituted tobacco. In certain embodiments, the tobacco bioplastic composition is derived by one or more chemical transformation steps, the one or more chemical transformation steps including acid chlorite treatment and optionally including alkali treatment. The invention also provides articles and compositions including smoking articles and smokeless tobacco compositions that include a tobacco bioplastic composition, and methods for preparing a tobacco bioplastic composition from Nicotiana species biomass or from reconstituted tobacco.

Claims

1. A tobacco composition for use in, on or around a smoking article or a smokeless tobacco composition, comprising a tobacco material and a bioplastic component derived from biomass of the Nicotiana species.

2. The tobacco composition of claim 1, wherein the bioplastic component is tobacco biomass subjected to acid chlorite treatment.

3. The tobacco composition of claim 1, wherein the bioplastic component is a reconstituted tobacco material subjected to acid chlorite treatment.

4. A process for making a tobacco bioplastic comprising contacting at least a portion of one or more plants from the Nicotiana species with an acid chlorite solution in excess solvent for at least a period of time to form an initial acid-chlorite-treated slurry, charging the initial acid-chlorite treated slurry with an acid or a chlorite salt or both an acid and a chlorite salt to form a subsequent acid-chlorite-treated slurry, and removing excess solvent from the subsequent acid-chlorite-treated slurry, thereby forming the tobacco bioplastic.

5. The process of claim 4, wherein the acid is an acid selected from sulfuric acid, hydrochloric acid and acetic acid.

6. The process of claim 4, wherein the chlorite salt is sodium chlorite.

7. An article of manufacture comprising a microfibrillar bioplastic derived from one or more plants or portions of plants from the Nicotiana species by acid chlorite treatment of the one or more plants or portions of plants.

8. The article of manufacture of claim 7, wherein the article of manufacture is a packaging material.

9. The article of manufacture of claim 7, wherein the article of manufacture is a textile.

10. The article of manufacture of claim 7, wherein the one or more portions of plants comprises reconstituted tobacco.

11. The article of manufacture of claim 10, wherein the reconstituted tobacco is ground, pulverized, comminuted, triturated or milled.

12. The article of manufacture of claim 7, wherein the one or more portions of plants comprises tobacco biomass.

13. The article of manufacture of claim 12, wherein the tobacco biomass is sheared, ground, diced or chopped.

14. The article of manufacture of claim 7, wherein the acid chlorite treatment comprises treatment with a concentration of chlorite greater than the concentration of chlorite used in a “

D-E-D”

pulping process.

15. The article of manufacture of claim 7, wherein the acid chlorite treatment comprises treatment with sodium chlorite.

16. The article of manufacture of claim 7, wherein the acid chlorite treatment comprises acidification with a mineral acid

17. The article of manufacture of claim 16, wherein the mineral acid is sulfuric acid.

18. The article of manufacture of claim 16, wherein the mineral acid is hydrochloric acid.

19. The article of manufacture of claim 7, wherein the acid chlorite treatment comprises acidification with an organic acid.

20. The article of manufacture of claim 19, wherein the organic acid is acetic acid.