DE2960119D1 - Process for the preparation of sulfinates of 4,4'-diaminobenzhydrol and of its substituted products, and copying paper containing these compounds - Google Patents

Process for the preparation of sulfinates of 4,4'-diaminobenzhydrol and of its substituted products, and copying paper containing these compounds

Info

Publication number
DE2960119D1
DE2960119D1 DE7979101293T DE2960119T DE2960119D1 DE 2960119 D1 DE2960119 D1 DE 2960119D1 DE 7979101293 T DE7979101293 T DE 7979101293T DE 2960119 T DE2960119 T DE 2960119T DE 2960119 D1 DE2960119 D1 DE 2960119D1
Authority
DE
Germany
Prior art keywords
diaminobenzhydrol
sulfinates
compounds
preparation
copying paper
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
DE7979101293T
Other languages
German (de)
Inventor
Roderich Dr Raue
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DE7979101293T priority Critical patent/DE2960119D1/en
Application granted granted Critical
Publication of DE2960119D1 publication Critical patent/DE2960119D1/en
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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Color Printing (AREA)
DE7979101293T 1978-05-10 1979-04-30 Process for the preparation of sulfinates of 4,4'-diaminobenzhydrol and of its substituted products, and copying paper containing these compounds Expired DE2960119D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE7979101293T DE2960119D1 (en) 1978-05-10 1979-04-30 Process for the preparation of sulfinates of 4,4'-diaminobenzhydrol and of its substituted products, and copying paper containing these compounds

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782820486 DE2820486A1 (en) 1978-05-10 1978-05-10 PROCESS FOR THE PRODUCTION OF SULFINATES OF 4,4'DIAMINOBENZHYDROL AND ITS SUBSTITUTIONAL PRODUCTS
DE7979101293T DE2960119D1 (en) 1978-05-10 1979-04-30 Process for the preparation of sulfinates of 4,4'-diaminobenzhydrol and of its substituted products, and copying paper containing these compounds

Publications (1)

Publication Number Publication Date
DE2960119D1 true DE2960119D1 (en) 1981-02-26

Family

ID=6039051

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19782820486 Withdrawn DE2820486A1 (en) 1978-05-10 1978-05-10 PROCESS FOR THE PRODUCTION OF SULFINATES OF 4,4'DIAMINOBENZHYDROL AND ITS SUBSTITUTIONAL PRODUCTS
DE7979101293T Expired DE2960119D1 (en) 1978-05-10 1979-04-30 Process for the preparation of sulfinates of 4,4'-diaminobenzhydrol and of its substituted products, and copying paper containing these compounds

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19782820486 Withdrawn DE2820486A1 (en) 1978-05-10 1978-05-10 PROCESS FOR THE PRODUCTION OF SULFINATES OF 4,4'DIAMINOBENZHYDROL AND ITS SUBSTITUTIONAL PRODUCTS

Country Status (3)

Country Link
EP (1) EP0005251B1 (en)
JP (1) JPS54148762A (en)
DE (2) DE2820486A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4348330A (en) * 1980-03-14 1982-09-07 Ciba-Geigy Corporation Process for the production of sulphinates of benzhydrol compounds
DE3337296A1 (en) * 1983-10-13 1985-04-25 Bayer Ag, 5090 Leverkusen THERMOREACTIVE RECORDING MATERIAL, ITS PRODUCTION AND THE USE OF ACID-MODIFIED POLYMERISATS AS ACCEPTORS IN THIS RECORDING MATERIAL

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193404A (en) * 1959-03-19 1965-07-06 Davis Chester Associated dye salts and method of forming colored indicia therewith
DE2208611A1 (en) * 1972-02-24 1973-09-06 Basf Ag METHOD OF MANUFACTURING ARYLECKY CLIP ON 4,4'-BIS (DIALKYLAMINO) BENZHYDRYL RECTANGULAR CLIP ON -SULPHONES

Also Published As

Publication number Publication date
EP0005251A3 (en) 1979-12-12
JPS54148762A (en) 1979-11-21
EP0005251A2 (en) 1979-11-14
DE2820486A1 (en) 1979-11-15
JPS5735911B2 (en) 1982-07-31
EP0005251B1 (en) 1981-01-07

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee