Title:
MOISTURE-CURABLE POLYURETHANE HOT MELT RESIN COMPOSITION, ADHESIVE AND INDUSTRIAL BELT
Document Type and Number:
WIPO Patent Application WO/2023/166782
Kind Code:
A1
Abstract:
The present invention provides a moisture-curable polyurethane hot melt resin composition which contains a hot melt urethane prepolymer (X) having an isocyanate group, the hot melt urethane prepolymer (X) being a reaction product of a polyol (A) and a polyisocyanate (B), and which is characterized in that: the polyol (A) contains a polycarbonate polyol (a1) and/or a polytetramethylene glycol (a2), a polyester polyol (a3) and a chain extender (a4); and the polyisocyanate (B) contains a diisocyanate (b1) and a multifunctional isocyanate (b2) other than the diisocyanate (b1). The present invention also provides: an adhesive which uses this moisture-curable polyurethane hot melt resin composition; and an industrial belt.
Inventors:
HIGUCHI DAICHI (JP)
TAKENAKA MASAMI (JP)
TAKENAKA MASAMI (JP)
Application Number:
PCT/JP2022/039039
Publication Date:
September 07, 2023
Filing Date:
October 20, 2022
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C08G18/30; C08G18/10; C08G18/65; C08G18/76; C09J175/06; C09J175/08
Domestic Patent References:
| WO2011024917A1 | 2011-03-03 | |||
| WO2016038968A1 | 2016-03-17 |
Foreign References:
| JP2019104847A | 2019-06-27 | |||
| JP2020097653A | 2020-06-25 | |||
| JP2002363247A | 2002-12-18 |
Attorney, Agent or Firm:
ONO Takayuki (JP)
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