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
Application number
JP49042211A
Other languages
Japanese (ja)
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
Application filed filed Critical
Priority to JP49042211A priority Critical patent/JPS50136312A/ja
Priority to GB1537475A priority patent/GB1499193A/en
Priority to DE19752516383 priority patent/DE2516383A1/en
Publication of JPS50136312A publication Critical patent/JPS50136312A/ja
Pending 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
    • 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)
JP49042211A 1974-04-17 1974-04-17 Pending JPS50136312A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP49042211A JPS50136312A (en) 1974-04-17 1974-04-17
GB1537475A GB1499193A (en) 1974-04-17 1975-04-15 Indolino-spiropyran compounds useful as colour formers
DE19752516383 DE2516383A1 (en) 1974-04-17 1975-04-15 INDOLINOSPIROPYRANE COMPOUNDS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49042211A JPS50136312A (en) 1974-04-17 1974-04-17

Publications (1)

Publication Number Publication Date
JPS50136312A true JPS50136312A (en) 1975-10-29

Family

ID=12629677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49042211A Pending JPS50136312A (en) 1974-04-17 1974-04-17

Country Status (3)

Country Link
JP (1) JPS50136312A (en)
DE (1) DE2516383A1 (en)
GB (1) GB1499193A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH594675A5 (en) * 1976-01-30 1978-01-13 Ciba Geigy Ag

Also Published As

Publication number Publication date
DE2516383A1 (en) 1975-10-23
GB1499193A (en) 1978-01-25

Similar Documents

Publication Publication Date Title
FR2276010B3 (en)
FR2270728B1 (en)
AU495920B2 (en)
AU7138274A (en)
AU7099174A (en)
BG20443A1 (en)
AU479725A (en)
AU481082A (en)
BG20729A1 (en)
AU481580A (en)
AU482019A (en)
AU482110A (en)
AU482332A (en)
AU481044A (en)
AU480580A (en)
AU480469A (en)
BG19607A1 (en)
BG19772A1 (en)
BG19828A1 (en)
BG19873A1 (en)
BG19954A1 (en)
BG19982A1 (en)
BG20853A1 (en)
BG20159A1 (en)
CH1107074A4 (en)