会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Non-linear optically active polycarbonate
    • 非线性光学活性聚碳酸酯
    • US5688896A
    • 1997-11-18
    • US604691
    • 1996-02-21
    • Tjerk Oedse BoonstraUlfert Elle Wiersum
    • Tjerk Oedse BoonstraUlfert Elle Wiersum
    • C08G64/00C08G64/04G02F1/361
    • C08G64/00C08G64/04G02F1/3617Y10T428/1023
    • The invention pertains to a non-linear optically active (NLO) side chain polycarbonate and to NLO active waveguides containing said polycarbonate. Waveguides containing this NLO polycarbonate have a low loss of signal. Polycarbonates based on bischloroformates of hexafluorobisphenol A, hexafluorotetrabromobisphenol A and bisphenol S or deuterated bisphenol A or sulphonylbiphenol are especially preferred within the framework of the invention: they were found to give an exceptionally low loss of signal. The invention further pertains to cross-linkable and already cross-linked polycarbonates. Especially preferred polycarbonates according to the invention are those where the diol comprises a rigid donor group. These polycarbonates have a high Tg, which renders them thermally stable.
    • 本发明涉及非线性光学活性(NLO)侧链聚碳酸酯和含有所述聚碳酸酯的NLO有源波导。 含有该NLO聚碳酸酯的波导具有低信号损失。 基于六氟双酚A,六氟四溴双酚A和双酚S或氘化双酚A或磺酰基联苯酚的双氯甲酸酯的聚碳酸酯在本发明的框架内是特别优选的:发现它们特别低的信号损失。 本发明还涉及可交联并已经交联的聚碳酸酯。 特别优选的根据本发明的聚碳酸酯是其中二醇包含刚性供体基团的那些。 这些聚碳酸酯具有高Tg,使其热稳定。