A photocurable resin composition comprising:
(A) a urethane (meth)acrylate produced by reacting at least a polyether polyol with a number average molecular weight of 500 or more having an alkyleneoxy structure in the molecule, an organic polyisocyanate compound, and a (meth)acrylate containing a hydroxyl group;
(B) a monofunctional (meth)acrylate shown by the following formula (1),
1
wherein R
1
represents a hydrogen atom or a methyl group, R
2
represents —(CH
2
CH
2
O)
p
—, —(CH(CH,
3
)CH
2
O)
q—, or —CH
2
CH(OH)CH
2
O—, Y
1
, Y
2
, and Y
3
individually represent a hydrogen atom, bromine atom, alkyl group having 1-10 carbon atoms, phenyl group, or —C(CH
3
)
2
C
6
H
5
—, and p and q represent integers from 0 to 10; and
(C) a photoinitiator;
its use and optical parts prepared from the photocurable resin composition.
一种光固化
树脂组合物,包括
(A) 聚
氨酯(甲基)
丙烯酸酯,由至少一种平均分子量在 500 或 500 以上的聚醚多元醇、一种有机多
异氰酸酯化合物和一种含有羟基的(甲基)
丙烯酸酯反应制得;
(B) 下式(1)所示的单官能度(甲基)
丙烯酸酯、
1
其中 R
1
代表氢原子或甲基,R
2
代表-(CH
2
氢原子
2
O)
p
-,-(CH(CH、
3
) CH
2
O)
q-,或-CH
2
CH(OH)CH
2
O-, Y
1
, Y
2
和 Y
3
分别代表氢原子、
溴原子、具有 1-10 个碳原子的烷基、苯基或-C(CH
3
)
2
C
6
H
5
-,p 和 q 代表 0 至 10 的整数;以及
(C) 光
引发剂;
其用途以及用光固化
树脂组合物制备的光学部件。