申请人:Mitsubishi Chemical Corporation
公开号:EP0300410A2
公开(公告)日:1989-01-25
A photopolymerizable composition comprising an addition polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator system, wherein the photopolymerization initiator system comprises:
(a) at least one sensitizer selected from the group consisting of a compound of the formula:
wherein ring A is a substituted or unsubstituted benzene or naphthalene ring, X is a bivalent atom or bivalent group, R¹ is an alkyl group, each of R² and R³ is hydrogen, an alkyl group, an alkoxy group or an alkylthio group, or R¹ and R² bond to each other, and ℓ is 0, 1 or 2, a compound of the formula:
wherein R¹ and R² are as defined above, Ar is an aromatic group, and each of n and m is 0 or 1, a compound of the formula:
wherein R¹, R², R³, ring A, X and ℓ are as defined above, R⁴ is hydrogen, an acetyl group or
wherein R¹, R², R³ and ℓ are as defined above, and R⁵ is an alkyl group, and a compound of the formula:
wherein R¹, R², R³, X and ℓ are as defined above, and
(b) at least one activator capable of generating active radicals when irradiated in the presence of said sensitizer.
一种可光聚合的组合物,包括具有至少一个乙烯基不饱和双键的可加成聚合化合物和光聚合引发剂体系,其中光聚合引发剂体系包括
(a) 至少一种敏化剂,选自由式化合物组成的组:
其中环 A 是取代或未取代的苯环或萘环;X 是二价原子或二价基团;R¹ 是烷基;R² 和 R³ 各为氢、烷基、烷氧基或烷硫基,或 R¹ 和 R² 彼此成键;ℓ 为 0、1 或 2;式中的化合物:
其中 R¹ 和 R² 如上定义,Ar 为芳香基团,且 n 和 m 均为 0 或 1 的式化合物:
其中 R¹、R²、R³、环 A、X 和 ℓ 如上定义,R⁴ 为氢、乙酰基或
其中 R¹、R²、R³ 和 ℓ 如上定义,R⁵ 是烷基,以及式中的化合物:
其中 R¹、R²、R³、X 和 ℓ 如上定义,以及
(b) 至少一种活化剂,当在上述敏化剂存在下照射时,能产生活性自由基。