CH580102A5 - - Google Patents

Info

Publication number
CH580102A5
CH580102A5 CH881673A CH881673A CH580102A5 CH 580102 A5 CH580102 A5 CH 580102A5 CH 881673 A CH881673 A CH 881673A CH 881673 A CH881673 A CH 881673A CH 580102 A5 CH580102 A5 CH 580102A5
Authority
CH
Switzerland
Application number
CH881673A
Original Assignee
Basf Ag
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 by Basf Ag filed Critical Basf Ag
Publication of CH580102A5 publication Critical patent/CH580102A5/xx

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
    • C07D491/02—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 two hetero rings
    • C07D491/10—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
    • B41M5/15—Spiro-pyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Color Printing (AREA)
CH881673A 1972-06-21 1973-06-18 CH580102A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2230225A DE2230225C2 (de) 1972-06-21 1972-06-21 Neue Chinoxalin-spiropyrane und deren Verwendung als Farbbildner für Kopierverfahren

Publications (1)

Publication Number Publication Date
CH580102A5 true CH580102A5 (xx) 1976-09-30

Family

ID=5848318

Family Applications (1)

Application Number Title Priority Date Filing Date
CH881673A CH580102A5 (xx) 1972-06-21 1973-06-18

Country Status (11)

Country Link
US (1) US3896126A (xx)
JP (1) JPS5717026B2 (xx)
BE (1) BE801236A (xx)
CA (1) CA1005445A (xx)
CH (1) CH580102A5 (xx)
DD (1) DD107696A5 (xx)
DE (1) DE2230225C2 (xx)
ES (1) ES416093A1 (xx)
FR (1) FR2189413B1 (xx)
GB (1) GB1424886A (xx)
IT (1) IT985338B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2272082B1 (xx) * 1974-05-24 1978-08-11 Issec
DE2430568C3 (de) * 1974-06-26 1979-02-08 Basf Ag, 6700 Ludwigshafen Spirodipyrane und deren Verwendung als Farbbildner für druckempfindliche Aufzeichnungsmaterialien
DE3044120A1 (de) * 1980-11-24 1982-07-15 Basf Ag, 6700 Ludwigshafen Druck- und thermoempfindliches aufzeichnungsmaterial
US8722076B2 (en) 2010-09-30 2014-05-13 Surmodics, Inc. Photochrome- or near IR dye-coupled polymeric matrices for medical articles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL102415C (xx) * 1956-02-06
US3366628A (en) * 1966-06-23 1968-01-30 American Home Prod 1, 2-dihydro-1-polyhydroxyalkyl-2-quinoxalinones

Also Published As

Publication number Publication date
JPS5717026B2 (xx) 1982-04-08
FR2189413A1 (xx) 1974-01-25
CA1005445A (en) 1977-02-15
DD107696A5 (xx) 1974-08-12
FR2189413B1 (xx) 1977-01-07
ES416093A1 (es) 1976-02-16
US3896126A (en) 1975-07-22
BE801236A (fr) 1973-12-21
DE2230225C2 (de) 1985-01-17
GB1424886A (en) 1976-02-11
JPS4949976A (xx) 1974-05-15
DE2230225A1 (de) 1974-01-10
IT985338B (it) 1974-11-30

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Legal Events

Date Code Title Description
PL Patent ceased