PHOTOPOLYMER FORMULATION FOR PRODUCTION OF HOLOGRAPHIC MEDIA COMPRISING BORATES WITH LOW TG
申请人:COVESTRO DEUTSCHLAND AG
公开号:US20160252808A1
公开(公告)日:2016-09-01
The invention relates to a photopolymer formulation comprising a component reactive toward isocyanates, a polyisocyanate component, a writing monomer and a photoinitiator containing at least one dye and a coinitiator, characterized in that the coinitiator contains at least one substance of the formula (Ia)
The invention further provides a process for preparing the specific coinitiators and the coinitiators obtainable by this process, and additionally a process for producing a holographic medium using the specific coinitiators, and a holographic medium obtainable using the inventive photopolymer formulation. The invention further relates to a laminate structure comprising an inventive holographic medium and likewise specific borates suitable as coinitiators.
本发明涉及一种光聚合物配方,包括一种对异氰酸反应的组分、一种聚异氰酸酯组分、一种写入单体和一种光引发剂,其中光引发剂含有至少一种染料和一个共引发剂,其特征在于该共引发剂含有至少一种式(Ia)的物质。本发明还提供了制备特定共引发剂和可获得此过程的共引发剂的方法,以及使用特定共引发剂制备全息介质的方法,以及使用本发明的光聚合物配方获得的全息介质。本发明还涉及一种层压结构,包括一种创新的全息介质,以及同样适用作共引发剂的特定硼酸。