Title:
【発明の名称】新規ホトクロミックインデノ縮合ナフトピラン
Document Type and Number:
Japanese Patent JP3062252
Kind Code:
B2
Abstract:
Described are novel photochromic indeno-fused naphthopyran compounds, examples of which are naphthopyran compounds having a substituted or unsubstituted indeno group, the 2,1 positions of which are fused to the f side of the naphtho portion of the naphthopyran, and having certain substituents at the 3-position of the pyran ring. Certain substituents may also be present at the number 5, 6, 7, 8, 9, 10, 11, 12 or 13 carbon atoms of the compounds. These compounds may be represented by the following graphic formula: Also described are polymeric organic host materials that contain or that are coated with such compounds. Optically clear articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, benzopyrans and spiro(indoline)type compounds, are also described.
Inventors:
Harry Gee, Heller
Level, Julian Earl
Level, Julian Earl
Application Number:
JP50302798A
Publication Date:
July 10, 2000
Filing Date:
June 03, 1997
Export Citation:
Assignee:
Transitions Optical Incorporated
International Classes:
C07D311/78; C07D311/92; C08K5/00; C08K5/15; C08K5/1545; C08L101/00; G02B5/23; (IPC1-7): C07D311/92; G02B5/23; C08L101/16; C08K5/1545
Domestic Patent References:
| JP10508031A |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)