申请人:MITSUI CHEMICALS, INC.
公开号:US10562995B2
公开(公告)日:2020-02-18
Provided is a photocurable composition including a monomer component including: a monomer (X) containing, within one molecule, two aromatic rings and two (meth)acryloyloxy groups, and having an Mw of from 400 to 580, and a monomer (H) containing, within one molecule, at least one of a hydroxyl group or a carboxy group, and a (meth)acryloyloxy group, and having an Mw of from 100 to 700; and a photopolymerization initiator. The composition has a functional group value (a) of from 0.5×10−3 to 2.0×10−3 mol/g.
Functional group value (a)=(nH/MH)×PH Formula (a)
wherein nH represents the total number of hydroxyl groups and carboxy groups contained in one molecule of the (meth)acrylic monomer (H); MH represents the Mw of the (meth)acrylic monomer (H); and PH represents the mass ratio of the (meth)acrylic monomer (H) with respect to the total amount of the (meth)acrylic monomer component.
本发明提供了一种光固化组合物,其单体成分包括:单分子内含有两个芳香环和两个(甲基)丙烯酰氧基且分子量在 400 至 580 之间的单体(X),以及单分子内含有羟基或羧基和(甲基)丙烯酰氧基中至少一个且分子量在 100 至 700 之间的单体(H);以及一种光聚合引发剂。该组合物的官能团值(a)为 0.5×10-3 至 2.0×10-3 mol/g。
官能团值 (a)=(nH/MH)×PH 公式 (a)
其中,nH 表示一个分子的(甲基)丙烯酸单体(H)中所含羟基和羧基的总数;MH 表示(甲基)丙烯酸单体(H)的分子量;PH 表示(甲基)丙烯酸单体(H)相对于(甲基)丙烯酸单体组分总量的质量比。