Liquid-crystalline and infrared-sensitive liquid-crystalline polyesters suitable for use in optical data storage, processes for the preparation of same, and an apparatus containing an infrared-sensitive liquid-crystalline polyester
申请人:Akzo Nobel N.V.
公开号:EP0478052A1
公开(公告)日:1992-04-01
Disclosed are liquid-crystalline and infrared-sensitive liquid-crystalline polyesters for optical data storage, processes for the preparation of the same, and an apparatus comprising an infrared-sensitive liquid-crystalline polyester. Owing to covalently bonded dye the liquid crystalline polyester is infrared sensitive and high concentrations of dye are obtainable, without having detrimental effects on the properties of the liquid-crystalline polyester. This results in a highly sensitive liquid-crystalline polyester for optical data storage. Infrared dyes which are preferably bonded in liquid-crystalline polyester are croconium, squarilium, azo, and azamethine dyes.
本发明公开了用于光学数据存储的液晶和红外敏感液晶聚酯、其制备工艺以及包含红外敏感液晶聚酯的装置。由于共价键染料的存在,液晶聚酯对红外线敏感,并且可以获得高浓度的染料,而不会对液晶聚酯的性能产生有害影响。因此,这种高灵敏度的液晶聚酯可用于光学数据存储。最好在液晶聚酯中粘合的红外染料是巴豆染料、鳞片染料、偶氮染料和偶氮甲胺染料。