CA496326A - Leuco sulphuric acid esters of trianthrimide carbazole dyestuffs and process - Google Patents

Leuco sulphuric acid esters of trianthrimide carbazole dyestuffs and process

Info

Publication number
CA496326A
CA496326A CA496326A CA496326DA CA496326A CA 496326 A CA496326 A CA 496326A CA 496326 A CA496326 A CA 496326A CA 496326D A CA496326D A CA 496326DA CA 496326 A CA496326 A CA 496326A
Authority
CA
Canada
Prior art keywords
trianthrimide
dyestuffs
carbazole
acid esters
sulphuric acid
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
CA496326A
Other languages
French (fr)
Inventor
A. W. Fairweather David
Coffey Samuel
H. Slinger Frank
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Publication date
Application granted granted Critical
Publication of CA496326A publication Critical patent/CA496326A/en
Expired legal-status Critical Current

Links

CA496326A Leuco sulphuric acid esters of trianthrimide carbazole dyestuffs and process Expired CA496326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA496326T

Publications (1)

Publication Number Publication Date
CA496326A true CA496326A (en) 1953-09-22

Family

ID=35641748

Family Applications (1)

Application Number Title Priority Date Filing Date
CA496326A Expired CA496326A (en) Leuco sulphuric acid esters of trianthrimide carbazole dyestuffs and process

Country Status (1)

Country Link
CA (1) CA496326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068240A (en) * 1958-05-03 1962-12-11 Hoechst Ag Reduction of vat dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068240A (en) * 1958-05-03 1962-12-11 Hoechst Ag Reduction of vat dyestuffs

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