GB942797A - Production of quinacridones - Google Patents

Production of quinacridones

Info

Publication number
GB942797A
GB942797A GB4264759A GB4264759A GB942797A GB 942797 A GB942797 A GB 942797A GB 4264759 A GB4264759 A GB 4264759A GB 4264759 A GB4264759 A GB 4264759A GB 942797 A GB942797 A GB 942797A
Authority
GB
United Kingdom
Prior art keywords
quinacridones
production
diarylamino
specifications
ester
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
GB4264759A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB942797A publication Critical patent/GB942797A/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
    • C09B48/00—Quinacridones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Linear quinacridones are made by heating a 2 : 5-diarylamino-terephthalic acid or an ester thereof in the presence of a polyphosphoric acid. Examples are given. Specifications 828,051 and 828,052 are referred to.
GB4264759A 1958-12-24 1959-12-15 Production of quinacridones Expired GB942797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78265658A 1958-12-24 1958-12-24

Publications (1)

Publication Number Publication Date
GB942797A true GB942797A (en) 1963-11-27

Family

ID=25126758

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4264759A Expired GB942797A (en) 1958-12-24 1959-12-15 Production of quinacridones
GB370563A Expired GB942798A (en) 1958-12-24 1959-12-15 Production of dihydroquinacridones and quinacridones

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB370563A Expired GB942798A (en) 1958-12-24 1959-12-15 Production of dihydroquinacridones and quinacridones

Country Status (1)

Country Link
GB (2) GB942797A (en)

Also Published As

Publication number Publication date
GB942798A (en) 1963-11-27

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