Title:
MOISTURE-CURABLE POLYURETHANE HOT-MELT RESIN COMPOSITION, CURED PRODUCT, LAMINATE, AND SKIN MATERIAL
Document Type and Number:
WIPO Patent Application WO/2024/084730
Kind Code:
A1
Abstract:
The present invention provides a moisture-curable polyurethane hot-melt resin composition characterized by containing a urethane prepolymer (i) having an isocyanate group that is the reaction product of a polyisocyanate (B) and a polyol (A) containing an aromatic polyester polyol (a1) that has a molecular weight of less than 500, has a branched structure, and has a compound (x) having two to four hydroxyl groups per molecule as a raw material, an aromatic polyester polyol (a2) other than the (a1), an aliphatic polyester polyol (a3), a crystalline polyester polyol (a4) other than the (a3), and a polyether polyol (a5). The present invention also provides a cured product characterized by being formed from the moisture-curable polyurethane hot-melt resin composition.
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Inventors:
KANAGAWA YOSHINORI (JP)
CHIJIWA HIROYUKI (JP)
CHIJIWA HIROYUKI (JP)
Application Number:
PCT/JP2023/019461
Publication Date:
April 25, 2024
Filing Date:
May 25, 2023
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C08G18/30; B32B3/26; B32B27/40; C08G18/12; C08G18/40; C08G18/42
Domestic Patent References:
| WO2022133635A1 | 2022-06-30 | |||
| WO2021025093A1 | 2021-02-11 | |||
| WO2013153907A1 | 2013-10-17 |
Foreign References:
| CN113046014A | 2021-06-29 | |||
| CN112552859A | 2021-03-26 | |||
| JP2021161219A | 2021-10-11 | |||
| JP2019077817A | 2019-05-23 | |||
| CN114015402A | 2022-02-08 |
Attorney, Agent or Firm:
ONO Takayuki (JP)
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