Title:
灰色着色フォトクロミック縮合ピラン
Document Type and Number:
Japanese Patent JP4229255
Kind Code:
B2
Abstract:
A photochromic grey coloring 2H-naphtho[1,2-b]pyran of formula (1) wherein R1 is selected from mono-, di- or poly-substituted aryl groups, mono-, di- or poly-substituted naphthyl groups and mono-, di- or poly-substituted heteroaryl groups, wherein at least one substituent is a nitrogen containing group, including amino, C1-C20 and C6-C20 alkylamino, C1-C20 and C6-C20 dialkylamino, C2-C20 dialkenylamino, C2-C20 or C4-C20 di(polyalkenyl)amino, arylamino, diarylamino, C1-C20 alkylarylamino, tetra (C1-C10 linear or branched alkyl) guanidino and cyclic-amino groups and at least one of R7 and R9, which may be the same or different, is selected from C1-C20 N alkylamino C1-C20 N-alkylamido, C1-C20 N,N-dialkylamido, amido, nitro, amino, C1-C20 alkylamino, C1-C20 dialkylamino, C2-C20 dialkenylamino, C4-C20 di(polyalkenyl)amino, arylamino, diarylamino, C1-C20 alkylarylamino, or cyclicamino groups. The compounds may be combined with a polymeric host material such as plastic or glass to make a sunglass lens, an ophthalmic lens or a window. The compounds may also be included in an ink or a fuel.
Inventors:
Clark, David Alan
Heron, Bernard Mark
Gabbott, Christopher David
Hepworth, John David
Partington, Stephen Michael
Cornes, Stephen Nigel
Heron, Bernard Mark
Gabbott, Christopher David
Hepworth, John David
Partington, Stephen Michael
Cornes, Stephen Nigel
Application Number:
JP2000572215A
Publication Date:
February 25, 2009
Filing Date:
August 24, 1999
Export Citation:
Assignee:
James Robinson Limited
International Classes:
C07D311/92; C07D311/78; G02C7/10; C07D491/04; C07D493/04; C07D495/04; C08K5/3435; C08K5/3437; C08L101/00; C09D11/00; C09K9/02; G02B1/04; G02B5/23; G03C1/73
Domestic Patent References:
| JP9218301A | ||||
| JP9124645A | ||||
| JP7504191A | ||||
| JP10503212A | ||||
| JP9504002A |
Foreign References:
| US5552091 | ||||
| WO1998004937A1 |
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Ryo Hashimoto
Toshio Shirane
Sadao Muramatsu
Ryo Hashimoto
Toshio Shirane