申请人:Teijin Limited
公开号:US04400519A1
公开(公告)日:1983-08-23
Benzil-di-(.beta.-succinimidoethyl)ketal of the following structural formula ##STR1## and novel benzil ketal derivatives thereof. The novel benzil ketal derivatives are characterized by having a structure in which a 5- or 6-membered cyclic imidecontaining group is bonded to each of the two oxygen atoms of ketal. Because these compounds have a high decomposition or sublimation temperature and the ability to initiate photopolymerization, they are useful as photopolymerization initiators in the production of photopolymerizable shaped articles from a molten blend of a photopolymerizable thermoplastic polymer composition.
以下是结构式为##STR1##的Benzil-di-(.beta.-succinimidoethyl)ketal及其新型Benzil ketal衍生物。这些新型Benzil ketal衍生物的特点是它们的结构中,一个含有5-或6-环的内酰亚胺基团与ketal的两个氧原子结合。由于这些化合物具有高分解或升华温度和启动光聚合的能力,因此它们在从光聚合可塑热塑性聚合物组成物的熔融混合物中制备光聚合可塑成型物品时可用作光聚合引发剂。