USB492039I5 - - Google Patents
Info
- Publication number
- USB492039I5 USB492039I5 US49203974A USB492039I5 US B492039 I5 USB492039 I5 US B492039I5 US 49203974 A US49203974 A US 49203974A US B492039 I5 USB492039 I5 US B492039I5
- Authority
- US
- United States
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/12—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains three hetero rings
- C07D491/20—Spiro-condensed systems
-
- 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
- B41M5/145—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
- B41M5/1455—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring characterised by fluoran compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B11/00—Diaryl- or thriarylmethane dyes
- C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
- C09B11/26—Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Color Printing (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732338954 DE2338954A1 (de) | 1973-08-01 | 1973-08-01 | Lactone der benzazaxanthenreihe und farbbildner fuer kopierverfahren |
| DT2338954 | 1976-08-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| USB492039I5 true USB492039I5 (enrdf_load_stackoverflow) | 1976-02-24 |
| US3997541A US3997541A (en) | 1976-12-14 |
Family
ID=5888569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/492,039 Expired - Lifetime US3997541A (en) | 1973-08-01 | 1974-07-26 | Lactones of the benzazaxanthene series and dye-forming components for duplication processes |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3997541A (enrdf_load_stackoverflow) |
| JP (1) | JPS5049331A (enrdf_load_stackoverflow) |
| BE (1) | BE818368R (enrdf_load_stackoverflow) |
| CH (1) | CH605961A5 (enrdf_load_stackoverflow) |
| DE (1) | DE2338954A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2245657B2 (enrdf_load_stackoverflow) |
| GB (1) | GB1478516A (enrdf_load_stackoverflow) |
| IT (1) | IT1048286B (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6320364A (ja) * | 1986-07-15 | 1988-01-28 | Shin Nisso Kako Co Ltd | スピロベンズアンスラセンフタリド化合物、その製造法および該化合物を含有する発色性記録体 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3787325A (en) * | 1970-11-16 | 1974-01-22 | Ncr | Alkylamino spiro {8 12-h{8 1{9 benzopyran {8 3,2f{9 {14 quinoline-12,1{40 phthalide |
-
1973
- 1973-08-01 DE DE19732338954 patent/DE2338954A1/de active Pending
-
1974
- 1974-07-26 US US05/492,039 patent/US3997541A/en not_active Expired - Lifetime
- 1974-07-29 CH CH1042574A patent/CH605961A5/xx not_active IP Right Cessation
- 1974-07-30 FR FR7426412A patent/FR2245657B2/fr not_active Expired
- 1974-07-31 GB GB33739/74A patent/GB1478516A/en not_active Expired
- 1974-07-31 IT IT52372/74A patent/IT1048286B/it active
- 1974-08-01 JP JP49087599A patent/JPS5049331A/ja active Pending
- 1974-08-01 BE BE147181A patent/BE818368R/xx active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3787325A (en) * | 1970-11-16 | 1974-01-22 | Ncr | Alkylamino spiro {8 12-h{8 1{9 benzopyran {8 3,2f{9 {14 quinoline-12,1{40 phthalide |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1478516A (en) | 1977-07-06 |
| JPS5049331A (enrdf_load_stackoverflow) | 1975-05-02 |
| FR2245657A2 (enrdf_load_stackoverflow) | 1975-04-25 |
| FR2245657B2 (enrdf_load_stackoverflow) | 1977-03-11 |
| US3997541A (en) | 1976-12-14 |
| DE2338954A1 (de) | 1975-02-20 |
| IT1048286B (it) | 1980-11-20 |
| BE818368R (fr) | 1975-02-03 |
| CH605961A5 (enrdf_load_stackoverflow) | 1978-10-13 |