GB858068A - Manufacture of colour pigments in finely divided form - Google Patents

Manufacture of colour pigments in finely divided form

Info

Publication number
GB858068A
GB858068A GB22215/57A GB2221557A GB858068A GB 858068 A GB858068 A GB 858068A GB 22215/57 A GB22215/57 A GB 22215/57A GB 2221557 A GB2221557 A GB 2221557A GB 858068 A GB858068 A GB 858068A
Authority
GB
United Kingdom
Prior art keywords
divided form
manufacture
finely divided
colour pigments
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
GB22215/57A
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.)
BASF Schweiz AG
Original Assignee
Ciba 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 Ciba AG filed Critical Ciba AG
Publication of GB858068A publication Critical patent/GB858068A/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
    • 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
    • C09B67/0032—Treatment of phthalocyanine pigments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/20—Esterification with maintenance of the fibrous structure of the cellulose
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

Phthalocyanine or anthraquinone pigments in finely-divided form are made by heating a crude phthalocyanine pigment or an anthraquinone pigment existing in its highest stable stage of oxidation for at least 5 hours at temperatures from 100 DEG C. to 300 DEG C. in sufficient aqueous medium so that all the pigment particles are surrounded by an aqueous phase. The heating may be conducted in a pressure vessel with agitation and organic or inorganic substances which are stable to the reaction conditions may be present. Specification 821,629 is referred to.
GB22215/57A 1956-07-20 1957-07-12 Manufacture of colour pigments in finely divided form Expired GB858068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH858068X 1956-07-20

Publications (1)

Publication Number Publication Date
GB858068A true GB858068A (en) 1961-01-04

Family

ID=4542858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22215/57A Expired GB858068A (en) 1956-07-20 1957-07-12 Manufacture of colour pigments in finely divided form

Country Status (1)

Country Link
GB (1) GB858068A (en)

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