Title:
POLYURETHANE-POLYUREA AQUEOUS DISPERSION, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/020779
Kind Code:
A1
Abstract:
Provided in the present invention are a polyurethane-polyurea aqueous dispersion, and a preparation method therefor and the use thereof. The polyurethane-polyurea aqueous dispersion comprises a unit derived from a component a, wherein the component a comprises at least one polyhydric alcohol with a functionality of 2 or more, and the component a comprises at least 40 wt% or more of a semi-crystalline polyester polyol obtained by reacting a dihydric alcohol with a component I, the component I comprising an aliphatic dicarboxylic acid and a component II at a molar ratio of (2.1-10) : 1, and the component II being an aromatic dicarboxylic acid and/or aromatic dicarboxylic acid anhydride. A soft and elastic product prepared on the basis of the polyurethane-polyurea aqueous dispersion provided in the present invention has the comprehensive properties of good elasticity, strength, water resistance, wearability, tactility, etc.
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Inventors:
WANG ZHEN (CN)
JIN YUNQUAN (CN)
JI XUESHUN (CN)
CAO YUYANG (CN)
ZHANG XU (CN)
LI WEIFEI (CN)
WANG HAIMEI (CN)
DENG JUNYING (CN)
SUN JIAKUAN (CN)
JIN YUNQUAN (CN)
JI XUESHUN (CN)
CAO YUYANG (CN)
ZHANG XU (CN)
LI WEIFEI (CN)
WANG HAIMEI (CN)
DENG JUNYING (CN)
SUN JIAKUAN (CN)
Application Number:
PCT/CN2022/107894
Publication Date:
February 01, 2024
Filing Date:
July 26, 2022
Export Citation:
Assignee:
WANHUA CHEMICAL GROUP CO LTD (CN)
International Classes:
C08L75/06; A41D19/015; A61F6/04; B65B63/04; C08L75/02
Domestic Patent References:
| WO2010012400A2 | 2010-02-04 |
Foreign References:
| CN101508785A | 2009-08-19 | |||
| CN111566137A | 2020-08-21 |
Attorney, Agent or Firm:
SINO-CREATIVITY INTELLECTUAL PROPERTY LAW FIRM (CN)
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