Title:
POLYURETHANE RESIN, ELASTIC MOLDED ARTICLE, AND METHOD FOR PRODUCING POLYURETHANE RESIN
Document Type and Number:
WIPO Patent Application WO/2023/204126
Kind Code:
A1
Abstract:
A polyurethane resin according to the present invention contains the reaction product of a polyisocyanate component and a chain elongation component. The polyisocyanate component comprises a prepolymer composition containing an isocyanate group-terminated prepolymer and a free polyisocyanate monomer. The isocyanate group-terminated prepolymer contains the reaction product of bis(isocyanatomethyl)cyclohexane and macropolyol having a number-average molecular weight of 800 to 1800. The isocyanate group concentration of the prepolymer composition is greater than 12 mass% and less than 20 mass%. The chain elongation component is an aromatic diamine compound.
Inventors:
MAEKAWA KAZUHIRO (JP)
Application Number:
PCT/JP2023/014970
Publication Date:
October 26, 2023
Filing Date:
April 13, 2023
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08G18/75; C08G18/10; C08G18/32; C08G18/38; C08G18/42; C08G18/48
Domestic Patent References:
| WO2021177175A1 | 2021-09-10 | |||
| WO2020075651A1 | 2020-04-16 |
Foreign References:
| JP2014231585A | 2014-12-11 | |||
| JP2020164570A | 2020-10-08 | |||
| JP2012211286A | 2012-11-01 | |||
| JP2011518898A | 2011-06-30 | |||
| JP2011516692A | 2011-05-26 | |||
| JP2006504843A | 2006-02-09 | |||
| JPH02115210A | 1990-04-27 |
Attorney, Agent or Firm:
IKUMI PATENT ATTORNEYS OFFICE (JP)
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