GB9827596D0 - Photochromic 2H-naphtho[1,2-b]pyrans - Google Patents
Photochromic 2H-naphtho[1,2-b]pyransInfo
- Publication number
- GB9827596D0 GB9827596D0 GBGB9827596.9A GB9827596A GB9827596D0 GB 9827596 D0 GB9827596 D0 GB 9827596D0 GB 9827596 A GB9827596 A GB 9827596A GB 9827596 D0 GB9827596 D0 GB 9827596D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyrans
- naphtho
- photochromic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 150000004880 oxines Chemical class 0.000 title 1
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9827596.9A GB9827596D0 (en) | 1998-12-15 | 1998-12-15 | Photochromic 2H-naphtho[1,2-b]pyrans |
EP99954094A EP1140892A1 (en) | 1998-12-15 | 1999-10-29 | Photochromic substiituted 2h-naphtho[1,2-b]pyrans |
PCT/GB1999/003578 WO2000035902A1 (en) | 1998-12-15 | 1999-10-29 | PHOTOCHROMIC SUBSTITUTED 2H-NAPHTHO[1,2-b]PYRANS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9827596.9A GB9827596D0 (en) | 1998-12-15 | 1998-12-15 | Photochromic 2H-naphtho[1,2-b]pyrans |
Publications (1)
Publication Number | Publication Date |
---|---|
GB9827596D0 true GB9827596D0 (en) | 1999-02-10 |
Family
ID=10844256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9827596.9A Ceased GB9827596D0 (en) | 1998-12-15 | 1998-12-15 | Photochromic 2H-naphtho[1,2-b]pyrans |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1140892A1 (en) |
GB (1) | GB9827596D0 (en) |
WO (1) | WO2000035902A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6348604B1 (en) * | 1999-09-17 | 2002-02-19 | Ppg Industries Ohio, Inc. | Photochromic naphthopyrans |
US8545984B2 (en) | 2003-07-01 | 2013-10-01 | Transitions Optical, Inc. | Photochromic compounds and compositions |
US8698117B2 (en) | 2003-07-01 | 2014-04-15 | Transitions Optical, Inc. | Indeno-fused ring compounds |
US8211338B2 (en) | 2003-07-01 | 2012-07-03 | Transitions Optical, Inc | Photochromic compounds |
US8518546B2 (en) | 2003-07-01 | 2013-08-27 | Transitions Optical, Inc. | Photochromic compounds and compositions |
US7521004B2 (en) | 2003-09-18 | 2009-04-21 | Tokuyama Corporation | Chromene compound |
US20070145337A1 (en) * | 2005-12-23 | 2007-06-28 | Anu Chopra | Photochromic 2H-naphthopyrans |
US8697890B2 (en) * | 2006-10-20 | 2014-04-15 | Alphamicron Incorporated | Dichroic-photochromic 2H-naphtho[1,2-b]pyran compounds and devices |
US9102652B2 (en) | 2006-10-20 | 2015-08-11 | Alphamicron Incorporated | Dichroic-photochromic 2H-naphtho[1,2-b]pyran compounds and devices |
EP2463280B1 (en) * | 2009-08-04 | 2013-09-11 | Tokuyama Corporation | Chromene compound |
EP2669278B1 (en) * | 2011-01-27 | 2015-05-27 | Tokuyama Corporation | Chromene compound |
PT2669277E (en) * | 2011-01-28 | 2015-10-19 | Tokuyama Corp | Chromene compound |
SG11202111035WA (en) | 2019-05-13 | 2021-11-29 | Alcon Inc | Method for producing photochromic contact lenses |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5200116A (en) * | 1990-07-23 | 1993-04-06 | Ppg Industries, Inc. | Photochromic chromene compounds |
JPH06306354A (en) * | 1993-04-26 | 1994-11-01 | Toray Ind Inc | Photochromic material |
US5651923A (en) * | 1993-12-09 | 1997-07-29 | Transitions Optical, Inc. | Substituted naphthopyrans |
US5458814A (en) * | 1993-12-09 | 1995-10-17 | Transitions Optical, Inc. | Substituted naphthopyrans |
JPH08295690A (en) * | 1995-04-26 | 1996-11-12 | Tokuyama Corp | Chromene compound |
US5656206A (en) * | 1995-06-14 | 1997-08-12 | Transitions Optical, Inc. | Substituted naphthopyrans |
US5658501A (en) * | 1995-06-14 | 1997-08-19 | Transitions Optical, Inc. | Substituted naphthopyrans |
CN1220734A (en) * | 1996-07-25 | 1999-06-23 | 康宁股份有限公司 | Naphthopyrans, compositions and articles containing them |
US6197225B1 (en) * | 1997-06-19 | 2001-03-06 | Tokuyama Corporation | Chromene compound |
-
1998
- 1998-12-15 GB GBGB9827596.9A patent/GB9827596D0/en not_active Ceased
-
1999
- 1999-10-29 WO PCT/GB1999/003578 patent/WO2000035902A1/en not_active Application Discontinuation
- 1999-10-29 EP EP99954094A patent/EP1140892A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP1140892A1 (en) | 2001-10-10 |
WO2000035902A1 (en) | 2000-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AT | Applications terminated before publication under section 16(1) |