NL208241A - - Google Patents
Info
- Publication number
- NL208241A NL208241A NL208241DA NL208241A NL 208241 A NL208241 A NL 208241A NL 208241D A NL208241D A NL 208241DA NL 208241 A NL208241 A NL 208241A
- Authority
- NL
- Netherlands
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US518332A US2783227A (en) | 1955-06-27 | 1955-06-27 | Naphthoyl leuco methylene blue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL208241A true NL208241A (en) |
Family
ID=24063470
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL94594D NL94594C (en) | 1955-06-27 | ||
| NL208241D NL208241A (en) | 1955-06-27 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL94594D NL94594C (en) | 1955-06-27 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2783227A (en) |
| NL (2) | NL208241A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2909520A (en) * | 1959-10-20 | Process for making acylated | ||
| US2915415A (en) * | 1957-06-19 | 1959-12-01 | Caribonum Ltd | Leucauramine derivate of benzoyl leuco methylene blue and transfer sheet coated therewith |
| US3873340A (en) * | 1972-07-27 | 1975-03-25 | Hodogaya Chemical Co Ltd | Pressure-sensitive copying paper containing phenoxazine compounds |
| US4237281A (en) * | 1978-10-13 | 1980-12-02 | Ciba-Geigy Aktiengesellschaft | Dyestuffs containing amino or imino groups |
| US4563415A (en) * | 1983-04-05 | 1986-01-07 | Minnesota Mining And Manufacturing Company | Thermographic system using naphthoylated leuco phenazine dyes |
| US4647525A (en) * | 1984-10-01 | 1987-03-03 | Minnesota Mining And Manufacturing Company | Stabilized leuco phenazine dyes and their use in an imaging system |
| US4889932A (en) * | 1984-10-01 | 1989-12-26 | Minnesota Mining And Manufacturing Company | Stabilized leuco phenazine dyes and their use in an imaging system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE113721C (en) * | 1899-06-01 | 1900-09-28 | Process for the preparation of acidyl derivatives of leukothionine dyes | |
| NL81776C (en) * | 1951-06-23 |
-
0
- NL NL94594D patent/NL94594C/xx active
- NL NL208241D patent/NL208241A/xx unknown
-
1955
- 1955-06-27 US US518332A patent/US2783227A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL94594C (en) | |
| US2783227A (en) | 1957-02-26 |