JPS50136312A - - Google Patents
Info
- Publication number
- JPS50136312A JPS50136312A JP49042211A JP4221174A JPS50136312A JP S50136312 A JPS50136312 A JP S50136312A JP 49042211 A JP49042211 A JP 49042211A JP 4221174 A JP4221174 A JP 4221174A JP S50136312 A JPS50136312 A JP S50136312A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/132—Chemical colour-forming components; Additives or binders therefor
- B41M5/136—Organic colour formers, e.g. leuco dyes
- B41M5/15—Spiro-pyrans
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
- Indole Compounds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49042211A JPS50136312A (US20110009641A1-20110113-C00185.png) | 1974-04-17 | 1974-04-17 | |
| GB1537475A GB1499193A (en) | 1974-04-17 | 1975-04-15 | Indolino-spiropyran compounds useful as colour formers |
| DE19752516383 DE2516383A1 (de) | 1974-04-17 | 1975-04-15 | Indolinospiropyranverbindungen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49042211A JPS50136312A (US20110009641A1-20110113-C00185.png) | 1974-04-17 | 1974-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS50136312A true JPS50136312A (US20110009641A1-20110113-C00185.png) | 1975-10-29 |
Family
ID=12629677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49042211A Pending JPS50136312A (US20110009641A1-20110113-C00185.png) | 1974-04-17 | 1974-04-17 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS50136312A (US20110009641A1-20110113-C00185.png) |
| DE (1) | DE2516383A1 (US20110009641A1-20110113-C00185.png) |
| GB (1) | GB1499193A (US20110009641A1-20110113-C00185.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH594675A5 (US20110009641A1-20110113-C00185.png) * | 1976-01-30 | 1978-01-13 | Ciba Geigy Ag |
-
1974
- 1974-04-17 JP JP49042211A patent/JPS50136312A/ja active Pending
-
1975
- 1975-04-15 GB GB1537475A patent/GB1499193A/en not_active Expired
- 1975-04-15 DE DE19752516383 patent/DE2516383A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1499193A (en) | 1978-01-25 |
| DE2516383A1 (de) | 1975-10-23 |
