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GB312175A - Manufacture of acid wool dyestuffs - Google Patents

Manufacture of acid wool dyestuffs

Info

Publication number
GB312175A
GB312175A GB15736/29A GB1573629A GB312175A GB 312175 A GB312175 A GB 312175A GB 15736/29 A GB15736/29 A GB 15736/29A GB 1573629 A GB1573629 A GB 1573629A GB 312175 A GB312175 A GB 312175A
Authority
GB
United Kingdom
Prior art keywords
anhydride
dyes
ammonia
manufacture
halogensulpho
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
GB15736/29A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB312175A publication Critical patent/GB312175A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/08—Naphthalimide dyes; Phthalimide dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

312,175. I. G. Farbenindustrie Akt.- Ges. May 18, 1928, [Conventiondate]. Addition to 299,721. Samples furnished. Naphthalene, dyes derived from.- Acid wool dyes are made by causing a 4-halogensulpho-l : 8- naphthalic acid anhydride to react in aqueous solution with ammonia or an aliphatic or aromatic amine. According to examples, sulpho- 4-bromonaphthalic anhydride (obtained by sulphonating the corresponding 4-halogen-naphthalicanhydride) is condensed with ammonia, p-toluidine or aniline. Yellow dyes of good levelling power are obtained. The Specification as open to inspection under Sect. 91 (3) (a), comprises also the manufacture of dyes from halogensulpho-1: 8-naphthalic acids or their anhydrides and derivatives thereof in general. In examples, sulpho-4-chloronaphthalic anhydride (obtained by sulphonating 4-chlornapthalic anhydride) is condensed with ammonia, p-toluidine, aniline and methylamine. This subject-matter does not appear in the Specification as accepted.
GB15736/29A 1928-05-18 1929-05-21 Manufacture of acid wool dyestuffs Expired GB312175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE312175X 1928-05-18

Publications (1)

Publication Number Publication Date
GB312175A true GB312175A (en) 1930-07-03

Family

ID=6133673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15736/29A Expired GB312175A (en) 1928-05-18 1929-05-21 Manufacture of acid wool dyestuffs

Country Status (1)

Country Link
GB (1) GB312175A (en)

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