HIGH TEMPERATURE RESISTANT PLASTIC COMPOSITE WITH MODIFIED LIGNO-CELLULOSE

• US 20120083555A1
• Filed: 09/24/2011
• Published: 04/05/2012
• Est. Priority Date: 10/04/2010
• Status: Abandoned Application

• Current Assignee: New Polymer Systems, Inc.
• Original Assignee: New Polymer Systems, Inc.
• Inventors: KORTE, HANS
• Application Number:
  US13/244,304
• Publication Number:
  US 20120083555A1
• Time in Patent Office: Days
• US Class Current: 524/14
• CPC Class Codes: C08L 2205/08 containing additives to improve the compatibility between two polymers
• CPC Class Codes: C08L 23/06 Polyethene
• CPC Class Codes: C08L 23/12 Polypropene
• CPC Class Codes: C08L 25/06 Polystyrene
• CPC Class Codes: C08L 77/00 Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain of polyhydrazides C08L79/06; of polyamideimides or polyamide acids C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 77/02 Polyamides derived from omega-amino carboxylic acids or from lactams thereof C08L77/10 takes precedence
• CPC Class Codes: C08L 77/06 Polyamides derived from polyamines and polycarboxylic acids C08L77/10 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

Abstract

A high temperature resistant composite is disclosed that is made from modified ligno-cellulose and polymers, wherein the modified ligno-cellulose has a molar ratio of oxygen to carbon (O/C) from 0.3 to 0.6 and has a molar ratio of hydrogen to carbon (H/C) from 0.9 to 1.6 and the polymers belong to the group of thermoplastic polymers.

Claims

1. A high temperature resistant composite made from modified ligno-cellulose and polymers, comprising:

modified ligno-cellulose having a molar ratio of oxygen to carbon (O/C) from 0.3 to 0.6 and a molar ratio of hydrogen to carbon (H/C) from 0.9 to 1.6; and

, thermoplastic polymers.

2. The composite according to claim 1 wherein the modified ligno-cellulose is made from virgin ligno-cellulose by reduction or total removal of hemicelluloses by means of wet treatment, dry treatment, chemical treatment, biochemical treatment, or by a combination of the treatments.

3. The Composite according to claim 1 wherein the modified ligno-cellulose content ranges from 5% (w/w) to 90% (w/w).

4. The Composite according to claim 1 wherein the modified ligno-cellulose content ranges from 15% (w/w) to 45% (w/w).

5. The Composite according to claim 1 wherein the modified ligno-cellulose content ranges from 20% (w/w) to 35% (w/w).

6. The composite according to claim 1 wherein said thermoplastic polymers are polyolefins, vinyl polymers, polyesters, polyamides, acrylates, or biopolymers, as well as said polyolefins'"'"', polyesters'"'"', polyamides'"'"', acrylates'"'"', or biopolymers'"'"' co-polymers derivatives and/or mixtures.

7. The composite according to claim 1 wherein the thermoplastic polymers are thermoplastic polyurethanes or hot melts from single polymer types.

8. The composite according to claim 1 wherein the thermoplastic polymers are mixtures of two or more thermoplastic polymers.

9. The composite according to claim 1 wherein the thermoplastic polymers are mixtures of two or more thermoplastic polymers

10. The composite according to claim 9 wherein the thermoplastic polymers are a mixture of polystyrene and polyolefin(s), including said polystyrene and polyolefin(s) co-polymers or derivatives.

11. The composite according to claim 1 wherein said composite does not rot in the presence of rotting micro-organism and wet conditions.

12. The composite according to claim 1 wherein said composite takes up water less than 10%, preferred less than 5% and mostly preferred less than 3% after 5 hours immersion in boiling water.

13. The composite according to claim 1 wherein said composite does not burn or smoke in plastic moulding treatments such as extrusion and injection moulding at temperatures up to 300°

C.