Title:
【発明の名称】新規フォトクロミックインデノ縮合ナフトピラン
Document Type and Number:
Japanese Patent JPH10508031
Kind Code:
A
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 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 graphic formula (I). 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:
Van gemart, barry
Application Number:
JP51545496A
Publication Date:
August 04, 1998
Filing Date:
November 03, 1995
Export Citation:
Assignee:
PPG INDUSTRIES, INCORPORATED
International Classes:
C07D311/78; C07D311/94; C07D311/96; C07D407/04; C08K5/1545; C09K9/02; G02B1/04; G02B5/23; G02F1/17; G02C7/10; (IPC1-7): C07D311/78; C07D311/96; C07D407/04; C09K9/02; G02B1/04; G02B5/23; G02C7/10; G02F1/17; G03C1/685; G03C1/73
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)