Title:
ISOCYANATE PREPOLYMER FOR POLYURETHANE-FIBER COMPOSITE MATERIALS, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/139135
Kind Code:
A1
Abstract:
An isocyanate prepolymer used for polyurethane-fiber composite materials, a preparation method therefor and a use thereof. The isocyanate prepolymer is prepared by using the following raw material components: an aliphatic polyisocyanate; a polyether polyol having a molecular weight of 200-1000 daltons and an average functionality of 2.5-6; and an alicyclic diisocyanate. The aliphatic polyisocyanate component is prepolymerized by introducing the polyether polyol having a specific structure, and a specific content of the alicyclic diisocyanate is introduced for blending modification so that the prepared isocyanate prepolymer has the characteristics of low viscosity and good mechanical properties and is particularly suitable for preparing polyurethane-fiber composite materials.
Inventors:
LU FUYOU (CN)
SUN SHUCHANG (CN)
SHANG YONGHUA (CN)
SHI BIN (CN)
SU LIMING (CN)
SUN LIDONG (CN)
LI HAIJUN (CN)
WANG YUQI (CN)
WANG NUANCHENG (CN)
ZHANG XIAOPENG (CN)
SUN SHUCHANG (CN)
SHANG YONGHUA (CN)
SHI BIN (CN)
SU LIMING (CN)
SUN LIDONG (CN)
LI HAIJUN (CN)
WANG YUQI (CN)
WANG NUANCHENG (CN)
ZHANG XIAOPENG (CN)
Application Number:
PCT/CN2020/105343
Publication Date:
July 15, 2021
Filing Date:
July 29, 2020
Export Citation:
Assignee:
WANHUA CHEMICAL GROUP CO LTD (CN)
WANHUA CHEMICAL NINGBO CO LTD (CN)
WANHUA CHEMICAL NINGBO CO LTD (CN)
International Classes:
C08G18/10; C08G18/75; C08G18/48; C08G18/73; C08K7/14; C08L75/08
Foreign References:
| CN111154062A | 2020-05-15 | |||
| CN108248170A | 2018-07-06 | |||
| CN102746784A | 2012-10-24 | |||
| CN109134804A | 2019-01-04 |
Attorney, Agent or Firm:
SINO-CREATIVITY INTELLECTUAL PROPERTY LAW FIRM (CN)
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