Title:
URETHANE (METH)ACRYLATE
Document Type and Number:
WIPO Patent Application WO/2023/106145
Kind Code:
A1
Abstract:
Provided is a urethane (meth)acrylate which has a viscosity that makes the urethane (meth)acrylate have excellent handleability and which, when cured, gives cured objects having high tensile strength, excellent in terms of toughness and shape recovery during bending, and having excellent shape retentivity. This urethane (meth)acrylate is represented by formula (1) and has a number-average molecular weight (Mn) of 7,500-60,000. Formula (1): R1-[OC(=O)NH-R2]n (In formula (1), R1 is an n-valent residue formed by removing the hydroxyl groups from a polyol which is selected from among polyether polyols, polyester polyols, and polycarbonate polyols and which has n hydroxyl groups in the molecule, n is 3 or larger, and the n R2 moieties in the molecule are each independently a residue formed by removing the isocyanate group from a monoisocyanate having one or more (meth)acryloyloxy groups in the molecule.)
Inventors:
NAKAMURA MAKITO (JP)
SUZUKI CHITOSHI (JP)
SUZUKI CHITOSHI (JP)
Application Number:
PCT/JP2022/043691
Publication Date:
June 15, 2023
Filing Date:
November 28, 2022
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C08G18/81; C08F299/06; C08G18/48; C09D4/02; C09D175/14
Domestic Patent References:
| WO2011034035A1 | 2011-03-24 |
Foreign References:
| JPH0273817A | 1990-03-13 | |||
| JP2012145751A | 2012-08-02 | |||
| JP2018035264A | 2018-03-08 | |||
| JP2012201786A | 2012-10-22 | |||
| JP2014152324A | 2014-08-25 | |||
| JP2001226150A | 2001-08-21 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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