Title:
LIGNIN-BASED BLOCK COPOLYMER MOLECULAR-GRADE COMBINED POLYETHER, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF IN PREPARATION OF FLEXIBLE POLYURETHANE FOAM MATERIALS
Document Type and Number:
WIPO Patent Application WO/2021/243851
Kind Code:
A1
Abstract:
A lignin-based block copolymer molecular-grade combined polyether, the lignin-based block copolymer molecular-grade combined polyether having lignosulphonate as a base material and, using the solvation effect of polyether polyol, the molecular chain of the lignosulphonate being cut off and embedded therein to form a molecular-grade combined polyether composed of an aromatic polymer segment of the lignosulfonate and an aliphatic polymer segment of the polyether polyol. Using a special structure molecular mixing technique, microscopically hard segments of lignosulphonate molecular segment and macroscopically soft segments of polymer polyols are re-edited and spliced to obtain a molecular-grade combined polyether by means of block copolymerisation. The molecular-grade combined polyether has the dual characteristics of strong support and softness, perfectly solving the problem of polyurethane soft foam material being unable to have both strong support and softness.
Inventors:
DENG ZEHUA (CN)
ZHANG LEI (CN)
QIU GUOHAO (CN)
GUO HAILING (CN)
ZHENG QIAN (CN)
ZHANG LEI (CN)
QIU GUOHAO (CN)
GUO HAILING (CN)
ZHENG QIAN (CN)
Application Number:
PCT/CN2020/109384
Publication Date:
December 09, 2021
Filing Date:
August 14, 2020
Export Citation:
Assignee:
ZHEJIANG GLORY HOME FURNISHINGS CO LTD (CN)
International Classes:
C07G1/00; B01F17/50
Domestic Patent References:
| WO2018053530A1 | 2018-03-22 |
Foreign References:
| CN102675582A | 2012-09-19 | |||
| CN111440284A | 2020-07-24 | |||
| CN105175682A | 2015-12-23 | |||
| CN105622957A | 2016-06-01 | |||
| CN101157708A | 2008-04-09 | |||
| US20190144674A1 | 2019-05-16 |
Attorney, Agent or Firm:
PSHIP FIRM,LLC (CN)
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