STRONG-SUPPORT HIGH-ELASTICITY SOFT POLYURETHANE FOAM MATERIAL AND PREPARATION METHOD THEREFOR

Title:

STRONG-SUPPORT HIGH-ELASTICITY SOFT POLYURETHANE FOAM MATERIAL AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2021/243850

Kind Code:

A1

Abstract:

The present invention relates to a soft polyurethane foam material, and specifically relates to a strong-support high-elasticity soft polyurethane foam material and a preparation method therefor. The present invention belongs to the technical field of the production of soft polyurethane foams. The strong-support high-elasticity soft polyurethane foam material of the present invention is mainly made by foaming, in parts by weight, the following raw materials: 10-120 parts of a lignin-based block copolymer molecular-level composite polyether, 45-65 parts of an isocyanate, 0.5-5 parts of a foaming catalyst, 1-10 parts of water and 1-3 parts of a foam homogenizer. The lignin-based block copolymer molecular-level composite polyether is a molecular-level composite polyether formed by means of the copolymerization of aromatic polymer segments of a lignosulfonate and aliphatic polymer segments of a polyether polyol, wherein with the lignosulfonate acting as a base material and by means of the solvation effect of the polyether polyol, the molecule chain of the lignosulfonate is cut and embedded therein. The foaming catalyst may be a foaming catalyst commonly used in the art.

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Inventors:

DENG ZEHUA (CN)
ZHANG LEI (CN)
QIU GUOHAO (CN)
GUO HAILING (CN)
ZHENG QIAN (CN)

Application Number:

PCT/CN2020/109380

Publication Date:

December 09, 2021

Filing Date:

August 14, 2020

Export Citation:

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Assignee:

ZHEJIANG GLORY HOME FURNISHINGS CO LTD (CN)

International Classes:

C08G18/50; C08J9/08; C08G101/00

Domestic Patent References:

WO2017127224A1

2017-07-27

Foreign References:

CN102675582A	2012-09-19
CN105399962A	2016-03-16
CN107722232A	2018-02-23
CN111440284A	2020-07-24
US20190202971A1	2019-07-04

Attorney, Agent or Firm:

PSHIP FIRM, LLC (CN)

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