GB1438921A - Process for forming crude organic pigments - Google Patents

Process for forming crude organic pigments

Info

Publication number
GB1438921A
GB1438921A GB3208274A GB3208274A GB1438921A GB 1438921 A GB1438921 A GB 1438921A GB 3208274 A GB3208274 A GB 3208274A GB 3208274 A GB3208274 A GB 3208274A GB 1438921 A GB1438921 A GB 1438921A
Authority
GB
United Kingdom
Prior art keywords
pigment
crude
salt
organic
liquid
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
GB3208274A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1438921A publication Critical patent/GB1438921A/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
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • C09B67/0022—Wet grinding of pigments
    • C09B67/0023—Wet grinding of pigments of phthalocyanines
    • 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
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • C09B67/0022—Wet grinding of pigments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1438921 Treating crude organic pigments BAYER AG 19 July 1974 [20 July 1973] 32082/74 Heading C4A [Also in Division B1] The physical form of a crude organic pigment is improved with the aid of an inorganic or organic salt which is water-soluble or soluble in aqueous acids or bases and an organic or inorganic liquid which does not significantly dissolve either the pigment or the salt, by subjecting the pigment-salt-liquid mixture to a shear gradient of 300 to 20,000 sec.<SP>-1</SP> for a period of 10 seconds to 15 minutes in a continuously operating kneading apparatus with at least two separated means for adding liquid, the amount of liquid being so chosen that the power taken up by kneading is between 0À4 and 50 kWh/kg. of pigment processed, the temperature in at least part of the kneading zone being between 120‹ and 350‹ C. and the salt being present in an amount between 0À1 and 20 parts by weight relative to 1 part by weight of pigment employed. The kneading apparatus may be a twin-screw or four-screw kneader or a singlescrew kneader which can execute oscillating movements. In the examples a copper phthalocyanine crude pigment, a crude polychlorocopper phthalocyanine, a crude monochlorocopper phthalocyanine pigment, pigment red c.I. 166 and crude perylenetetracarboxylic acid diimide are treated with ground rock salt, diethylene glycol, sodium chloride, ethylene glycol, dodecylamine and aniline.
GB3208274A 1973-07-20 1974-07-19 Process for forming crude organic pigments Expired GB1438921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732336919 DE2336919C2 (en) 1973-07-20 1973-07-20 Process for the formation of organic pigments

Publications (1)

Publication Number Publication Date
GB1438921A true GB1438921A (en) 1976-06-09

Family

ID=5887498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3208274A Expired GB1438921A (en) 1973-07-20 1974-07-19 Process for forming crude organic pigments

Country Status (12)

Country Link
JP (1) JPS5912697B2 (en)
BE (1) BE817798A (en)
BR (1) BR7405949D0 (en)
CH (1) CH599319A5 (en)
DE (1) DE2336919C2 (en)
DK (1) DK392474A (en)
ES (1) ES428463A1 (en)
FR (1) FR2237941B1 (en)
GB (1) GB1438921A (en)
IN (1) IN139280B (en)
IT (1) IT1017275B (en)
NL (1) NL7409673A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780446A2 (en) 1995-12-23 1997-06-25 Ciba-Geigy Ag Production method of pigments
EP1716208B2 (en) † 2004-02-11 2021-06-30 Basf Se Black perylene pigments

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824054A1 (en) * 1988-07-15 1990-01-18 Basf Ag METHOD FOR CONVERTING RAW COPPER PHTHALOCYANINES INTO A PIGMENT

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB795414A (en) * 1956-05-22 1958-05-21 Gen Aniline & Film Corp Acid milling of phthalocyanine pigments
BE760050A (en) * 1969-12-10 1971-05-17 Buss Ag METHOD AND INSTALLATION FOR PERFORMING DISPERSIONS OF COLORANTS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780446A2 (en) 1995-12-23 1997-06-25 Ciba-Geigy Ag Production method of pigments
EP1716208B2 (en) † 2004-02-11 2021-06-30 Basf Se Black perylene pigments

Also Published As

Publication number Publication date
DK392474A (en) 1975-03-03
DE2336919A1 (en) 1975-01-30
CH599319A5 (en) 1978-05-31
BE817798A (en) 1975-01-20
IN139280B (en) 1976-05-29
BR7405949D0 (en) 1975-05-13
JPS5912697B2 (en) 1984-03-24
FR2237941B1 (en) 1978-01-27
DE2336919C2 (en) 1983-08-04
ES428463A1 (en) 1976-08-16
JPS5044222A (en) 1975-04-21
FR2237941A1 (en) 1975-02-14
IT1017275B (en) 1977-07-20
NL7409673A (en) 1975-01-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee