Patent ID: 11920045
Assignee: RICOH COMPANY, LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC C  B | IPC B  C

Claim 17:
18. An active-energy-ray-curable composition, comprising:
a compound represented by General Formula (I) below:, wherein the compound of General Formula (I), and where in the General Formula (I):
R is hydrogen or a methyl group;
A is a structure expressed by one selected from the group consisting of Structural Formulas (II) to (VII) below, each of which may have a substituent which is optionally selected from an alkyl group or an alkoxy group, or both; j and k in the Structural Formulas (VI) and (VII) are an integer of 0 or more;
X is an acyclic group containing a heteroatom;
n is an integer of 0 or more, m is an integer of 1 or more, and n+m is 3 or more, or n is an integer of 0 and m is an integer of 2; and
wavy lines in the Structural Formulas (II) to (VII) each independently denote a bond with X or a (meth)acryloyl group (H2C═CR—C(═O)—):, , and
wherein the active-energy-ray-curable composition further comprises:
a radically polymerizable compound,
wherein the active-energy-ray-curable composition includes from 4 parts by mass to 20 parts by mass of the compound represented by the General Formula (I) relative to 100 parts by mass of the radically polymerizable compound.