GB679773A - Manufacture of zinc phthalocyanine pigments - Google Patents
Manufacture of zinc phthalocyanine pigmentsInfo
- Publication number
- GB679773A GB679773A GB17256/50A GB1725650A GB679773A GB 679773 A GB679773 A GB 679773A GB 17256/50 A GB17256/50 A GB 17256/50A GB 1725650 A GB1725650 A GB 1725650A GB 679773 A GB679773 A GB 679773A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- anhydrous
- substratum
- water
- chloride
- 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
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
- 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
- C09B67/0002—Grinding; Milling with solid grinding or milling assistants
-
- 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
- C09B67/0026—Crystal modifications; Special X-ray patterns of phthalocyanine pigments
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Coloring (AREA)
- Optical Filters (AREA)
Abstract
Zinc phthalocyanines in dispersible form are obtained by grinding crude zinc phthalocyanine in the dry state with a solvent-removable substratum, until a pigment of strong colour is produced, removing the substratum with a solvent, and, if desired, drying. Substrata specified are water-soluble compounds such as sodium meta-borate, sodium ferrocyanide, anhydrous calcium chloride, sodium carbonate, potassium aluminium sulphate, anhydrous barium chloride, finely - powdered sodium chloride, finely-powdered anhydrous sodium sulphate, ammonium chloride or sulphate, anhydrous boric acid, aromatic sulphonic acids or their alkali salts such as sulphanilic acid, anhydrous sodium and potassium hydroxides, sodium phenolate, and acetone-soluble compounds such as phthalic anhydride or p-toluene sulphonamide. The product is mainly b -modification but changes to a -modification on treatment with an aqueous solution, e.g. when removing the substratum, and if a strong greenish pigment is desired, this may be avoided by treating first with an organic liquid having a dissociation constant less than water, e.g. methyl or ethyl alcohol, acetaldehyde, acetone, dioxane, iso- and n-propyl alcohol, benzene, cyclohexanone, or benzonitrile. The liquid may be present during the grinding step, in quantity such that the mix is in powder form. Water-immiscible liquid such as benzene or benzine may be used but in quantity insufficient to form a non-aqueous phase. As an alternative to the organic liquid treatment, the dried product may be heated to 150-200 DEG C. In examples, a crude zinc phthalocyanine produced from phthalonitrile and zinc dust in presence of a -chloronaphthalene is subjected to the treatments described above, using some of the substrata and organic liquids there specified.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1021693X | 1949-07-13 | ||
CH280478T | 1949-07-13 | ||
CH679773X | 1949-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB679773A true GB679773A (en) | 1952-09-24 |
Family
ID=61563004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17256/50A Expired GB679773A (en) | 1949-07-13 | 1950-07-10 | Manufacture of zinc phthalocyanine pigments |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE496917A (en) |
CH (1) | CH280478A (en) |
FR (1) | FR1021693A (en) |
GB (1) | GB679773A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE976591C (en) * | 1952-07-22 | 1964-01-23 | Gen Aniline & Film Corp | Process for the production of hexadecachloro copper phthalocyanine pigments with increased covering power and improved color tone |
US6506244B1 (en) * | 1999-08-03 | 2003-01-14 | Ciba Specialty Chemicals Corporation | Stable polymorphic copper-free phthalocyanine pigment |
-
1949
- 1949-07-13 CH CH280478D patent/CH280478A/en unknown
-
1950
- 1950-07-08 FR FR1021693D patent/FR1021693A/en not_active Expired
- 1950-07-10 GB GB17256/50A patent/GB679773A/en not_active Expired
- 1950-07-12 BE BE496917D patent/BE496917A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR1021693A (en) | 1953-02-23 |
CH280478A (en) | 1952-01-31 |
BE496917A (en) | 1951-01-12 |
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