Title:
METHOD FOR EXTRACTING LIGNIN FROM BIOMASS, AND HIGH-STRENGTH ENVIRONMENTALLY-FRIENDLY PLASTIC MATERIAL COMPRISING LIGNIN OBTAINED THEREBY
Document Type and Number:
WIPO Patent Application WO/2017/217677
Kind Code:
A1
Abstract:
The present invention relates to: a method for extracting lignin from biomass; and a high-strength environmentally-friendly plastic material comprising lignin obtained thereby. A plastic composite material using lignin obtained from biomass according to the present invention, which extracts lignin in a high yield from biomass by using a strong acid such as sulfuric acid or hydrochloric acid, can make a so-called lightweight material having remarkably reduced weight compared to that of a conventional plastic composite material comprising a mineral-based filling material such as talc and calcium carbonate. Compared with a simple plastic material, the plastic composite material comprising the lignin produced by the present invention has greatly improved mechanical and chemical properties and the like, and thus can be readily used in an interior material for vehicles, construction, packaging and electronics. In addition, the plastic composite material is an environmentally-friendly material having environmentally-friendly characteristics since the plastic composite material, compared with a conventional petroleum plastic material, emits remarkably less fossil fuel-derived carbon dioxide, which is a greenhouse gas, when incinerated after being disposed. Additionally, the plastic composite material, comprising the lignin, manufactured according to the present invention, is economically advantageous, and thus can be mass-applied and used in various industries such as those of vehicles and construction by replacing a conventional plastic material.
Inventors:
KIM YONG HWAN (KR)
Application Number:
PCT/KR2017/005675
Publication Date:
December 21, 2017
Filing Date:
May 31, 2017
Export Citation:
Assignee:
SECHEM INC (KR)
International Classes:
C08H7/00; C08F255/02; C08L23/26; C08L97/00
Domestic Patent References:
| WO2010094697A1 | 2010-08-26 |
Foreign References:
| JP2006169134A | 2006-06-29 | |||
| JP2014133835A | 2014-07-24 | |||
| KR20140138435A | 2014-12-04 | |||
| KR20160007537A | 2016-01-20 |
Attorney, Agent or Firm:
LEE, Yeo Song (KR)
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