Title:
TWO-PART CURABLE POLYURETHANE RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2024/057900
Kind Code:
A1
Abstract:
The present invention achieves both adhesiveness and moist heat resistance. A two-part curable polyurethane resin composition according to an embodiment of the present invention comprises: a first component including polyols and a terpene resin; and a second component including a polyisocyanate. The polyols include: a polybutadiene polyol and/or a hydrogenated polybutadiene polyol; and a polyether polyol obtained by adding, to an active hydrogen-containing compound having 3-6 functional groups, an alkylene oxide including 70 mol% or more of a propylene oxide and/or a butylene oxide. A cured product obtained by mixing the first component and the second component has a storage modulus of 2.0-7.0 MPa at 120°C as determined by a dynamic viscoelasticity measurement in a tensile mode using a frequency of 10 Hz, a strain amplitude of 0.01%, and a temperature elevation rate of 3 °C/min.
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| JPS56141337 | RUBBER COMPOSITION |
Inventors:
NORIKUNI MASAHIRO (JP)
Application Number:
PCT/JP2023/031075
Publication Date:
March 21, 2024
Filing Date:
August 29, 2023
Export Citation:
Assignee:
DKS CO LTD (JP)
International Classes:
C08G18/64; C08G18/40; C08G18/62; C08G18/69; C08L45/00; C08L75/04
Foreign References:
| JP6916404B1 | 2021-08-11 | |||
| JP2014201635A | 2014-10-27 | |||
| JP2019218536A | 2019-12-26 |
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