GB2190088B - Photochromic articles - Google Patents
Photochromic articlesInfo
- Publication number
- GB2190088B GB2190088B GB8710142A GB8710142A GB2190088B GB 2190088 B GB2190088 B GB 2190088B GB 8710142 A GB8710142 A GB 8710142A GB 8710142 A GB8710142 A GB 8710142A GB 2190088 B GB2190088 B GB 2190088B
- Authority
- GB
- United Kingdom
- Prior art keywords
- photochromic articles
- photochromic
- articles
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D498/10—Spiro-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D498/12—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains three hetero rings
- C07D498/20—Spiro-condensed systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8710142A GB2190088B (en) | 1986-05-01 | 1987-04-29 | Photochromic articles |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB868610709A GB8610709D0 (en) | 1986-05-01 | 1986-05-01 | Photochromic lenses |
| GB8710142A GB2190088B (en) | 1986-05-01 | 1987-04-29 | Photochromic articles |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8710142D0 GB8710142D0 (en) | 1987-06-03 |
| GB2190088A GB2190088A (en) | 1987-11-11 |
| GB2190088B true GB2190088B (en) | 1989-12-06 |
Family
ID=26290705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8710142A Expired GB2190088B (en) | 1986-05-01 | 1987-04-29 | Photochromic articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2190088B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9225346D0 (en) * | 1992-12-03 | 1993-01-27 | Pilkington Plc | Photochromic compounds |
| GB9225347D0 (en) * | 1992-12-03 | 1993-01-27 | Pilkington Plc | Photo reactive material |
| GB9225348D0 (en) * | 1992-12-03 | 1993-01-27 | Pilkington Plc | Bridged photochromics |
| DE19643773A1 (en) * | 1996-10-23 | 1998-04-30 | Tschochner Rolfheinz | Photo:chromic spiro:oxazine compounds |
-
1987
- 1987-04-29 GB GB8710142A patent/GB2190088B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB8710142D0 (en) | 1987-06-03 |
| GB2190088A (en) | 1987-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Effective date: 20070428 |