Title:
ポリアルコキシル化ナフトピラン
Document Type and Number:
Japanese Patent JP4550281
Kind Code:
B2
Abstract:
Described are novel photochromic polyalkoxylated naphthopyran compounds, examples of which are certain 2H-naphtho[1,2-b]pyrans, 3H-naphtho[2,1-b]pyrans and indeno[2,1-f]naphtho[1,2-b]pyrans, each having at least one polyalkoxylated substituent of from 2 to 50 alkoxy units per substituent. Specific substituents may also be present on the naphtho, indeno and pyrano portions of the compounds. These compounds may be represented by the following graphic formulae:
Inventors:
Barry Van Gemart
Kevin Jay Stuart
Kevin Jay Stuart
Application Number:
JP2000570169A
Publication Date:
September 22, 2010
Filing Date:
September 09, 1999
Export Citation:
Assignee:
Transitions Optical Incorporated
International Classes:
C07D311/92; C07D311/94; G02C7/10; C07D311/96; C08G65/331; C08J5/00; C08K5/1545; C08L101/00; C09K9/02; G02B5/23; G03C1/73
Domestic Patent References:
| JP10508031A | ||||
| JP9505271A | ||||
| JP8176139A | ||||
| JP3011074A | ||||
| JP10298176A |
Foreign References:
| US5658500 | ||||
| WO1995016215A1 | ||||
| WO1997022895A1 | ||||
| WO1997021698A1 |
Attorney, Agent or Firm:
Aoyama Aoi
Muneo Yamamoto
Yuko Goto
Muneo Yamamoto
Yuko Goto