GB1125577A - Quinacridone pigment - Google Patents

Quinacridone pigment

Info

Publication number
GB1125577A
GB1125577A GB581566A GB581566A GB1125577A GB 1125577 A GB1125577 A GB 1125577A GB 581566 A GB581566 A GB 581566A GB 581566 A GB581566 A GB 581566A GB 1125577 A GB1125577 A GB 1125577A
Authority
GB
United Kingdom
Prior art keywords
dihydroquinacridone
dianilino
dihydro
terephthalate
quinacridone pigment
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
GB581566A
Inventor
Hans Rudolf Schweizer
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to GB581566A priority Critical patent/GB1125577A/en
Publication of GB1125577A publication Critical patent/GB1125577A/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
    • 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
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0025—Crystal modifications; Special X-ray patterns
    • C09B67/0027—Crystal modifications; Special X-ray patterns of quinacridones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

1,125,577. 6,13-Dihydroquinacridone. EASTMAN KODAK CO. 10 Feb., 1966, No. 5815/66. Heading C2C. [Also in Division C4] 6,13-Dihydroquinacridone is obtained by heating a mixture of diethyl 3,6-dihydro-2,5- dianilino-terephthalate, diphenyl and diphenyl ether with stirring under nitrogen at 250-260‹ C. for 1À5 hr.; or by adding diethyl-3,6-dihydro- 2,5-dianilino-terephthalate to a melt of polyphosphonic acid containing 83% P 2 O 5 heated to 80-90‹ C. under nitrogen, then raising the temperature to 130-140" C. with stirring for 4 hours.
GB581566A 1966-02-10 1966-02-10 Quinacridone pigment Expired GB1125577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB581566A GB1125577A (en) 1966-02-10 1966-02-10 Quinacridone pigment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB581566A GB1125577A (en) 1966-02-10 1966-02-10 Quinacridone pigment

Publications (1)

Publication Number Publication Date
GB1125577A true GB1125577A (en) 1968-08-28

Family

ID=9803126

Family Applications (1)

Application Number Title Priority Date Filing Date
GB581566A Expired GB1125577A (en) 1966-02-10 1966-02-10 Quinacridone pigment

Country Status (1)

Country Link
GB (1) GB1125577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760144A (en) * 1986-11-13 1988-07-26 Ciba-Geigy Corporation Process for preparation of yellow shade modification of gamma quinacridone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760144A (en) * 1986-11-13 1988-07-26 Ciba-Geigy Corporation Process for preparation of yellow shade modification of gamma quinacridone

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