Title:
WOOD PLASTIC COMPOSITES AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/151287
Kind Code:
A1
Abstract:
Disclosed therein are wood plastic composites and a manufacturing method thereof, which can provide a high discoloration resistance by removing lignin from wood flour which is a main material of the wood plastic composites. The method of manufacturing wood plastic composites includes the steps of: removing lignin contained in wood chips through a cooking process of high temperature and pressure; crushing the wood chip from which lignin was removed in order to produce wood flour; putting and mixing polymer resins and additives into the wood flour so as to manufacture mixture of a gel phase; and extrusion-molding, injection-molding or compression-molding the mixture to manufacture wood plastic composites. The wood plastic composites and the manufacturing method thereof can prevent decoloration and after-yellowing even though the wood plastic composites are exposed to UV or moisture for a long time to thereby enhance long-term weather resistance because the wood plastic composites are manufactured using wood flour from which lignin is removed through a cooking process.
Inventors:
NAM KYUNG GU (KR)
SON JUNG IL (KR)
SON JUNG IL (KR)
Application Number:
PCT/KR2013/002676
Publication Date:
October 10, 2013
Filing Date:
April 01, 2013
Export Citation:
Assignee:
LG HAUSYS LTD (KR)
International Classes:
B27M1/02; B27N1/02; C08K3/00; C08L23/00
Domestic Patent References:
| WO2011132168A2 | 2011-10-27 | |||
| WO2011037364A2 | 2011-03-31 |
Foreign References:
| JP2003306568A | 2003-10-31 | |||
| KR20080090611A | 2008-10-09 | |||
| US5539027A | 1996-07-23 | |||
| JP2005060556A | 2005-03-10 | |||
| US20030228454A1 | 2003-12-11 | |||
| JP2012040701A | 2012-03-01 |
Other References:
See also references of EP 2834053A4
Attorney, Agent or Firm:
CHO, Inje (Office No. 301 3rd Fl., Buok Bldg. #648-18, Yeoksam-dong,Gangnam-gu, Seoul 135-911, KR)
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