DD109871A5 - - Google Patents

Info

Publication number
DD109871A5
DD109871A5 DD171960A DD17196073A DD109871A5 DD 109871 A5 DD109871 A5 DD 109871A5 DD 171960 A DD171960 A DD 171960A DD 17196073 A DD17196073 A DD 17196073A DD 109871 A5 DD109871 A5 DD 109871A5
Authority
DD
German Democratic Republic
Application number
DD171960A
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 claimed from DE19722232364 external-priority patent/DE2232364C3/de
Application filed filed Critical
Publication of DD109871A5 publication Critical patent/DD109871A5/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/10—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/916—Natural fiber dyeing
    • Y10S8/919—Paper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
DD171960A 1972-07-01 1973-06-26 DD109871A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722232364 DE2232364C3 (de) 1972-07-01 Spirodipyrane

Publications (1)

Publication Number Publication Date
DD109871A5 true DD109871A5 (fr) 1974-11-20

Family

ID=5849393

Family Applications (1)

Application Number Title Priority Date Filing Date
DD171960A DD109871A5 (fr) 1972-07-01 1973-06-26

Country Status (10)

Country Link
US (1) US3899514A (fr)
JP (1) JPS5544782B2 (fr)
BE (1) BE801694A (fr)
CA (1) CA998681A (fr)
CH (1) CH578002A5 (fr)
DD (1) DD109871A5 (fr)
ES (1) ES416481A1 (fr)
FR (1) FR2190816B1 (fr)
GB (1) GB1426396A (fr)
IT (1) IT988290B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5436862B2 (fr) * 1973-05-02 1979-11-12
DE2430568C3 (de) * 1974-06-26 1979-02-08 Basf Ag, 6700 Ludwigshafen Spirodipyrane und deren Verwendung als Farbbildner für druckempfindliche Aufzeichnungsmaterialien
DE2611600C2 (de) * 1976-03-19 1986-12-18 Basf Ag, 6700 Ludwigshafen Spirodipyrane und deren Verwendung
DE2703811A1 (de) * 1977-01-29 1978-08-10 Basf Ag Druckempfindliches aufzeichnungsmaterial
DE2847690A1 (de) * 1978-11-03 1980-05-22 Basf Ag Farbbildner fuer kopierverfahren
US4342696A (en) * 1980-10-08 1982-08-03 Armstrong World Industries, Inc. 7-Dimethylamino-3-substituted-2,2'-spirobi[2H-1-benzopyrans]
US4348508A (en) * 1981-06-25 1982-09-07 Armstrong World Industries, Inc. 3-Substituted-7-alkoxy-2,2'-Spirobi[2H-1-benzopyrans]
US4384094A (en) * 1981-10-22 1983-05-17 Armstrong World Industries, Inc. 3-Substituted-7-dialkylamino-spiro(2H-1-benzopyran-2,3'-(3H)-naphtha(2,1-b)pyrans)
US4382134A (en) * 1981-10-22 1983-05-03 Armstrong World Industries, Inc. 3-Substituted-7-alkoxy-spiro(2H-1-benzopyran-2,3'-(3H)-naphtho(2,1-B)pyrans)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1259745A (fr) * 1959-06-19 1961-04-28 Ncr Co Dérivés du 3'-méthyle-spyro
NL253843A (fr) * 1959-07-15

Also Published As

Publication number Publication date
CH578002A5 (fr) 1976-07-30
FR2190816B1 (fr) 1978-08-04
JPS4944027A (fr) 1974-04-25
DE2232364B2 (de) 1975-07-03
US3899514A (en) 1975-08-12
IT988290B (it) 1975-04-10
CA998681A (en) 1976-10-19
JPS5544782B2 (fr) 1980-11-14
DE2232364A1 (de) 1974-03-28
ES416481A1 (es) 1976-02-16
BE801694A (fr) 1974-01-02
FR2190816A1 (fr) 1974-02-01
GB1426396A (en) 1976-02-25

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