Indenonaphthopyrans having trialkylsilyl and ethylenically unsaturated groups
Номер патента: EP4313996A1
Опубликовано: 07-02-2024
Автор(ы): Beon-Kyu Kim, Robert W. Walters, Wenjing Xiao
Принадлежит: Transitions Optical Ltd
Опубликовано: 07-02-2024
Автор(ы): Beon-Kyu Kim, Robert W. Walters, Wenjing Xiao
Принадлежит: Transitions Optical Ltd
Реферат: The present invention relates to indenonaphthopyran compounds represented by the following Formula (I). With reference to Formula (I), R1 through R6 are as described in the specification. There is provided that the indenonaphthopyran compound represented by Formula (I) includes: (i) at least one trialkylsilyl group; and (ii) at least one ethylenically unsaturated radically polymerizable group selected from vinylphenyl, acrylate, methacrylate, acrylamide, or methacrylamide. The present invention also relates to photochromic compositions and photochromic articles that include indenonaphthopyran compounds represented by Formula (I).
Poly(ethylenically unsaturated alkoxy) heterocyclic compounds
Номер патента: CA1125285A. Автор: Larry A. Wendling. Владелец: Minnesota Mining and Manufacturing Co. Дата публикации: 1982-06-08.