DE2314540C2 - 2(H)-Benzopyrane und deren Verwendung - Google Patents

2(H)-Benzopyrane und deren Verwendung

Info

Publication number
DE2314540C2
DE2314540C2 DE2314540A DE2314540A DE2314540C2 DE 2314540 C2 DE2314540 C2 DE 2314540C2 DE 2314540 A DE2314540 A DE 2314540A DE 2314540 A DE2314540 A DE 2314540A DE 2314540 C2 DE2314540 C2 DE 2314540C2
Authority
DE
Germany
Prior art keywords
chromogenic
acidic
sheet
substances
recording
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
Application number
DE2314540A
Other languages
German (de)
English (en)
Other versions
DE2314540A1 (de
Inventor
Chao-Han Lin
Arthur John Dayton Ohio Wright
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.)
Appvion LLC
Original Assignee
Appleton Papers Inc
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 Appleton Papers Inc filed Critical Appleton Papers Inc
Publication of DE2314540A1 publication Critical patent/DE2314540A1/de
Application granted granted Critical
Publication of DE2314540C2 publication Critical patent/DE2314540C2/de
Expired 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
    • C07D311/60—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with aryl radicals attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
DE2314540A 1972-03-31 1973-03-23 2(H)-Benzopyrane und deren Verwendung Expired DE2314540C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00240112A US3812157A (en) 1972-03-31 1972-03-31 Benzopyran compounds

Publications (2)

Publication Number Publication Date
DE2314540A1 DE2314540A1 (de) 1973-10-04
DE2314540C2 true DE2314540C2 (de) 1983-12-29

Family

ID=22905160

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2314540A Expired DE2314540C2 (de) 1972-03-31 1973-03-23 2(H)-Benzopyrane und deren Verwendung

Country Status (5)

Country Link
US (1) US3812157A (OSRAM)
JP (1) JPS5619274B2 (OSRAM)
CA (1) CA997361A (OSRAM)
DE (1) DE2314540C2 (OSRAM)
GB (1) GB1368047A (OSRAM)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183553A (en) * 1977-02-04 1980-01-15 Ciba-Geigy Corporation Pressure- or heat-sensitive recording material and novel chromano compounds used therein
CH623273A5 (OSRAM) * 1977-02-04 1981-05-29 Ciba Geigy Ag
US5837702A (en) * 1993-10-07 1998-11-17 Bristol-Myers Squibb Co. 4-arylamino-benzopyran and related compounds
US5612323A (en) * 1995-06-07 1997-03-18 Bristol-Myers Squibb Company Phosphinic ester substituted benzopyran derivatives
US5869478A (en) * 1995-06-07 1999-02-09 Bristol-Myers Squibb Company Sulfonamido substituted benzopyran derivatives
US5629429A (en) * 1995-06-07 1997-05-13 Bristol-Myers Squibb Company Process for preparing 4-arylamino-benzopyran and related compounds
US5612370A (en) * 1995-06-07 1997-03-18 Bristol-Myers Squibb Company Phenylglycine and phenylalaninen amido benzopyran derivatives

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS-ERMITTELT

Also Published As

Publication number Publication date
CA997361A (en) 1976-09-21
DE2314540A1 (de) 1973-10-04
JPS4915511A (OSRAM) 1974-02-12
JPS5619274B2 (OSRAM) 1981-05-06
GB1368047A (en) 1974-09-25
US3812157A (en) 1974-05-21

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Legal Events

Date Code Title Description
OGA New person/name/address of the applicant
OB Request for examination as to novelty
OC Search report available
OD Request for examination
8126 Change of the secondary classification

Ipc: B41L 1/36

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: APPLETON PAPERS INC., APPLETON, WIS., US

8328 Change in the person/name/address of the agent

Free format text: WEICKMANN, H., DIPL.-ING. FINCKE, K., DIPL.-PHYS. DR. WEICKMANN, F., DIPL.-ING. HUBER, B., DIPL.-CHEM. LISKA, H., DIPL.-ING. DR.-ING. PRECHTEL, J., DIPL.-PHYS. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee