METHOD FOR PRODUCING CELLULOSE-CONTAINING MASS FOR PRODUCING COMPOSITE MATERIAL

• US 20140053756A1
• Filed: 03/29/2012
• Published: 02/27/2014
• Est. Priority Date: 04/01/2011
• Status: Abandoned Application

• Current Assignee: Vadim Gogichev
• Original Assignee: Vadim Gogichev
• Inventors: Gogichev, Vadim
• Application Number:
  US14/007,961
• Publication Number:
  US 20140053756A1
• Time in Patent Office: Days
• US Class Current: 106/204.01
• CPC Class Codes: B29C 43/003 characterised by the choice of material
• CPC Class Codes: B29C 45/0005 using fibre reinforcements
• CPC Class Codes: C08H 8/00 Macromolecular compounds derived from lignocellulosic materials pretreatment thereof B27N
• CPC Class Codes: C08L 1/02 Cellulose; Modified cellulose
• CPC Class Codes: C08L 1/28 Alkyl ethers
• CPC Class Codes: C08L 1/286 substituted with acid radicals, e.g. carboxymethyl cellulose [CMC] C08L1/282 takes precedence
• CPC Class Codes: C08L 97/02 Lignocellulosic material, e.g. wood, straw or bagasse manufacture of articles made from lignocellulosic material by dry processes B27N
• CPC Class Codes: D21C 5/00 Other processes for obtaining cellulose, e.g. cooking cotton linters obtaining fibres for spinning D01C; Processes characterised by the choice of cellulose-containing starting materials

Abstract

The invention relates to a method for producing a cellulose-containing mass for forming a cellulose-containing composite material comprising following steps: (a) providing an input material comprising at least one cellulose-containing raw material and a liquid content; (b) macerating the cellulose-containing raw material in the input material; and (c) homogenizing the input material to obtain the cellulose-containing mass for forming cellulose-containing composite material by using an apparatus selected from a homogenizer, a refiner and a wet-milling apparatus. According to a further embodiment of the present invention cellulose of different types is added to the input. Moreover a method for producing a composite material that is based on said cellulose-containing mass is disclosed as well as a product produced of said composite material.

Claims

1. :

A method for producing a cellulose-containing mass for forming a cellulose-containing composite material comprising the following steps;

a. providing an input material comprising at least one cellulose-containing raw material and a liquid content;

b. macerating the cellulose-containing raw material in the input material; and

c. homogenizing the input material to obtain the cellulose-containing mass for forming the cellulose-containing composite material by using an apparatus selected from a homogenizer, a refiner and a wet-milling apparatus.

2. :

The method according to claim 1, wherein the cellulose-containing raw material is pre-treated by reducing the particle size to an average size of about 0.5-2.0 cm.

3. :

The method according to claim 1, wherein stones or other solid non-organic material is removed from the cellulose-containing mass or the input material before homogenizing the input material.

4. :

The method according to claim 1, wherein the cellulose-containing raw material origins from higher plants.

5. :

The method according to claim 1, wherein the liquid content comprises at least one component selected from the group consisting of water and solvents.

6. The method according to claim 1, wherein one kilogram of cellulose-containing raw material is mixed with 1-20 liters of a master solution to obtain the input material and wherein the master solution is 0.1 N H₂SO₄, H₂O or 1 N NaOH.

7. The method according to claim 1, wherein the organic material in the input material is macerated at a pH-value of about 8.

8. The method according to claim 1, wherein the maceration and/or the homogenization is performed at a temperature in the range of 70 to 120°

C.

9. The method according to claim 1, wherein excess liquid content is removed from the cellulose-containing mass to obtain a cellulose-containing mass with about 20 to 40% dry weight.

10. :

The method according to claim 1, wherein an aqueous, liquid cellulose-containing fraction is separated during or after the homogenization procedure.

11. The method according to claim 1, wherein additional cellulose is added to the cellulose-containing mass.

12. :

The method according to claim 1, wherein at least one additive or modifier is added to at least one of the input material or the cellulose-containing mass.

13. :

A cellulose-containing mass produced by the method of claim 1.

14. :

A method for producing a cellulose-containing composite material from the cellulose-containing mass of claim 13, wherein the cellulose-containing composite material is formed by at least one of molding, compression molding and injection molding.

15. A cellulose-containing composite material produced by the method according to claim 14.

16. :

A product produced from a composite material according to claim 15.

17. :

The method according to claim 2, wherein the cellulose-containing raw material is pre-treated by reducing the particle size to an average size of about 0.7-1.0 cm.

18. :

The method according to claim 4, wherein the cellulose-containing raw material originates from cotton, hemp, flax, cereal straw, rice straw, or mixtures thereof.

19. The method according to claim 6, wherein one kilogram of cellulose-containing raw material is mixed with 7-15 liters of the master solution.

20. :

The method according to claim 7, wherein the organic material in the input material is macerated at a pH-value of more than 8.

21. :

The method according to claim 8, wherein the maceration and/or the homogenization is performed at a temperature in the range of 80 to 100°

C.

22. :

The method according to claim 11, wherein additional cellulose is added to the cellulose-containing mass by returning a cellulose-containing fraction separated during or after the homogenizing procedure after concentration or dehydration.