Title:
URETHANE (METH)ACRYLATE
Document Type and Number:
WIPO Patent Application WO/2023/106144
Kind Code:
A1
Abstract:
Provided is a urethane (meth)acrylate that, as a result of being cured, results in a cured product that is superior in terms of the stretching properties, the flexibility, and the bendability and that is also superior in terms of the shape recovering properties when being bent. A urethane (meth)acrylate according to the present invention is represented by formula (1), and, in said urethane (meth)acrylate, the number average molecular weight (Mn) is 16000-60000, the ratio (Mw/Mn) of the weight average molecular weight (Mw) and Mn is 1.0-1.2, and the mass percentage of urethane groups with respect to the total mass of the urethane (meth)acrylate is 0.18-0.73 mass%. (1): R2-NHC(=O)O-R1-OC(=O)NH-R3 (In the formula, R1 is a residue in which two hydroxyl groups are removed from one molecule of diol selected from polyether diol, polyester diol, and polycarbonate diol, and each of R2 and R3 is independently a residue in which an isocyanate group is removed from monoisocyanate having one or more (meth)acryloyloxy groups in one molecule thereof.)
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Inventors:
NAKAMURA MAKITO (JP)
SUZUKI CHITOSHI (JP)
SUZUKI CHITOSHI (JP)
Application Number:
PCT/JP2022/043687
Publication Date:
June 15, 2023
Filing Date:
November 28, 2022
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C08G18/81; C08F299/06; C08G18/48
Domestic Patent References:
| WO2011034035A1 | 2011-03-24 |
Foreign References:
| JP2012201786A | 2012-10-22 | |||
| JP2014152324A | 2014-08-25 | |||
| JP2012145751A | 2012-08-02 | |||
| JP2001226150A | 2001-08-21 | |||
| JP2007254705A | 2007-10-04 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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