GB2194645B - Positive - acting thermographic materials - Google Patents
Positive - acting thermographic materialsInfo
- Publication number
- GB2194645B GB2194645B GB8719289A GB8719289A GB2194645B GB 2194645 B GB2194645 B GB 2194645B GB 8719289 A GB8719289 A GB 8719289A GB 8719289 A GB8719289 A GB 8719289A GB 2194645 B GB2194645 B GB 2194645B
- Authority
- GB
- United Kingdom
- Prior art keywords
- acting
- positive
- thermographic materials
- thermographic
- materials
- 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 - Fee Related
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
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US89676386A | 1986-08-14 | 1986-08-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8719289D0 GB8719289D0 (en) | 1987-09-23 |
GB2194645A GB2194645A (en) | 1988-03-09 |
GB2194645B true GB2194645B (en) | 1990-02-14 |
Family
ID=25406783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8719289A Expired - Fee Related GB2194645B (en) | 1986-08-14 | 1987-08-14 | Positive - acting thermographic materials |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS6348385A (en) |
DE (1) | DE3722731A1 (en) |
GB (1) | GB2194645B (en) |
-
1987
- 1987-07-09 DE DE19873722731 patent/DE3722731A1/en not_active Withdrawn
- 1987-08-13 JP JP20260387A patent/JPS6348385A/en active Pending
- 1987-08-14 GB GB8719289A patent/GB2194645B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPS6348385A (en) | 1988-03-01 |
GB8719289D0 (en) | 1987-09-23 |
DE3722731A1 (en) | 1988-02-18 |
GB2194645A (en) | 1988-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990814 |