POLYURETHANE COMPOSITIONS, COMPOSITE MATERIALS PREPARED WITH SAME AND PREPARATION METHODS THEREOF

WIPO Patent Application WO/2023/035262

A1

A polyurethane composition, a composite material prepared with same and a method of preparing a polyurethane resin using the polyurethane composition is provided. The polyurethane composition comprises A) an isocyanate component, comprising A1) and at least one of A2) and A3) : A1) a first polyisocyanate compound; A2) a first prepolymer that is formed by reaction of a second polyisocyanate compound and a first polyol, wherein the first prepolymer has a NCO content of 21-25%; A3) a second prepolymer that is formed by reaction of a third polyisocyanate compound and a second polyol, wherein the second prepolymer has a NCO content of 10-20%; wherein the total amount of the first prepolymer and the second prepolymer is 10-70 wt%based on the total weight of the isocyanate component; B) an isocyanate-reactive component, comprising a third polyol and an isocyanate reactive (meth) acrylate monomer; and C) a free radical initiator.

DU FANG (IT)
PELLACANI LUIGI (IT)
GUO KUNPENG (CN)
FENG SHAOGUANG (CN)
SUN GANG (CN)
JIAO JIANQING (CN)

PCT/CN2021/117930

March 16, 2023

September 13, 2021

Click for automatic bibliography generation  

DOW GLOBAL TECHNOLOGIES LLC (US)
DU FANG (IT)
PELLACANI LUIGI (IT)
GUO KUNPENG (CN)
FENG SHAOGUANG (CN)
SUN GANG (CN)
JIAO JIANQING (CN)

C08G18/12; C08G18/32; C08G18/48; C08G18/66; C08G18/67; C08G18/72; C08G18/76; C08G18/80

WO2018219756A1	2018-12-06
WO2018094499A1	2018-05-31

CN108373528A

2018-08-07

HOUBEN WEYL: "Methoden der Organischen Chemie, vol. XIV 2 Makromolekulare Stoffe", 1963, GEORG THIEME VERLAG, pages: 17

SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)

View/Download PDF      PDF Help

Previous Patent: AN END-TO-END NEURAL SYSTEM FOR MULTI-SPEAKER AND MULTI-LINGUAL SPEECH SYNTHESIS

Next Patent: METHOD AND DEVICE FOR DETERMINING IMAGE SIGNAL PROCESSING PARAMETERS, AND PERCEPTION SYSTEM