US2783228A - Nitro derivatives of benzoyl leuco methylene blue - Google Patents

Nitro derivatives of benzoyl leuco methylene blue Download PDF

Info

Publication number
US2783228A
US2783228A US518333A US51833355A US2783228A US 2783228 A US2783228 A US 2783228A US 518333 A US518333 A US 518333A US 51833355 A US51833355 A US 51833355A US 2783228 A US2783228 A US 2783228A
Authority
US
United States
Prior art keywords
color
blue
methylene blue
nitro derivatives
leuco methylene
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 - Lifetime
Application number
US518333A
Other languages
English (en)
Inventor
Clyde S Adams
Marjorie J Cormack
Frazier Mary Lou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to NL94595D priority Critical patent/NL94595C/xx
Priority to NL208242D priority patent/NL208242A/xx
Application filed by NCR Corp filed Critical NCR Corp
Priority to US518333A priority patent/US2783228A/en
Application granted granted Critical
Publication of US2783228A publication Critical patent/US2783228A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Definitions

  • This invention relates to the light-stable leucomethylene blue derivative 10 (nitrobenzoyl) -"3,7 bis(dimethylamino)phenothiazine, having the structure S (ormmgsgmcmn 10 N and in which R is taken from the group consisting of 4-nitro and 3-nitro.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
US518333A 1955-06-27 1955-06-27 Nitro derivatives of benzoyl leuco methylene blue Expired - Lifetime US2783228A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL94595D NL94595C (ja) 1955-06-27
NL208242D NL208242A (ja) 1955-06-27
US518333A US2783228A (en) 1955-06-27 1955-06-27 Nitro derivatives of benzoyl leuco methylene blue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US518333A US2783228A (en) 1955-06-27 1955-06-27 Nitro derivatives of benzoyl leuco methylene blue

Publications (1)

Publication Number Publication Date
US2783228A true US2783228A (en) 1957-02-26

Family

ID=24063475

Family Applications (1)

Application Number Title Priority Date Filing Date
US518333A Expired - Lifetime US2783228A (en) 1955-06-27 1955-06-27 Nitro derivatives of benzoyl leuco methylene blue

Country Status (2)

Country Link
US (1) US2783228A (ja)
NL (2) NL94595C (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915415A (en) * 1957-06-19 1959-12-01 Caribonum Ltd Leucauramine derivate of benzoyl leuco methylene blue and transfer sheet coated therewith
US3427180A (en) * 1965-03-31 1969-02-11 Ncr Co Pressure-sensitive record system and compositions
US3447944A (en) * 1965-12-06 1969-06-03 Sterling Drug Inc Thermographic copying system
US3873340A (en) * 1972-07-27 1975-03-25 Hodogaya Chemical Co Ltd Pressure-sensitive copying paper containing phenoxazine compounds
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE512300A (ja) * 1951-06-23
DE113721C (de) * 1899-06-01 1900-09-28 Verfahren zur Darstellung von Acidylderivaten der Leukothioninfarbstoffe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE113721C (de) * 1899-06-01 1900-09-28 Verfahren zur Darstellung von Acidylderivaten der Leukothioninfarbstoffe
BE512300A (ja) * 1951-06-23

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915415A (en) * 1957-06-19 1959-12-01 Caribonum Ltd Leucauramine derivate of benzoyl leuco methylene blue and transfer sheet coated therewith
US3427180A (en) * 1965-03-31 1969-02-11 Ncr Co Pressure-sensitive record system and compositions
US3447944A (en) * 1965-12-06 1969-06-03 Sterling Drug Inc Thermographic copying system
US3873340A (en) * 1972-07-27 1975-03-25 Hodogaya Chemical Co Ltd Pressure-sensitive copying paper containing phenoxazine compounds
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

Also Published As

Publication number Publication date
NL94595C (ja)
NL208242A (ja)

Similar Documents

Publication Publication Date Title
US3501331A (en) Pressure sensitive fluoran derivative containing copying paper
US3864146A (en) Sensitized record sheet material
DE2422899C3 (de) Basisch-substituierte Furanverbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung als Farbbildner für ein druck- oder wärmeempfindliches Aufzeichnungsmaterial
US3669711A (en) Pressure-sensitive copying paper
CA1052381A (en) Heterocyclic substituted fluorans
US2783228A (en) Nitro derivatives of benzoyl leuco methylene blue
US3873340A (en) Pressure-sensitive copying paper containing phenoxazine compounds
DE2163658A1 (de) Druckempfindliches Kopierpapier
US3900215A (en) Record sheet
GB2025940A (en) Colour developer compositions for use in recording materias
US2783227A (en) Naphthoyl leuco methylene blue
JPS59214686A (ja) 記録材料
US3506471A (en) Pressure-sensitive fluorane derivative containing copying paper
US2784186A (en) Halo derivatives of benzoyl leuco
US2828342A (en) N-(alkylhalophenyl) derivatives of leucauramine
GB1599776A (en) Chromano compounds and their manufacture
US4291902A (en) Recording material employing substituted 3,6-diaminophthalides as color formers
US4316036A (en) Benzopyranothiazoles
FI68069C (fi) Tryck- eller vaermekaensligt uppteckningsmaterial
US3884506A (en) Pressure-sensitive copying papers containing fluoran compounds
US3974175A (en) Nitro-chromeno pyrazole compounds their manufacture and use
GB1599742A (en) Diarylchromeno compounds and their manufacture
EP0145225A2 (en) Record material
US4011237A (en) Heterocyclic substituted chromenopyrazoles
JPH0713196B2 (ja) フルオラン化合物