GB599490A - Pigments - Google Patents
PigmentsInfo
- Publication number
- GB599490A GB599490A GB2000/44A GB200044A GB599490A GB 599490 A GB599490 A GB 599490A GB 2000/44 A GB2000/44 A GB 2000/44A GB 200044 A GB200044 A GB 200044A GB 599490 A GB599490 A GB 599490A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydroxyquinoline
- metal
- salt
- substratum
- excess
- 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
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/10—Metal complexes of organic compounds not being dyes in uncomplexed form
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
Pigments, most of which are fluorescent and some also paramagnetic, are manufactured by condensing an inner metallic complex (the metal of which has a valency greater than one) of 8-hydroxyquinoline or a substitution product thereof (not bearing substituents containing azo groups) upon an undissolved substratum, which may be paramagnetic substance and is preferably at least slightly basic, e.g. by (a) adding an alkali or an alkaline-reacting material to a suspension of the substratum in a concentrated solution of the 8-hydroxyquinoline compound and a salt of the metal, or (b) adding to such concentrated solution a substratum which, though normally insoluble, is capable of acting as a precipitating agent by partial dissolution, or (c) adding to such concentrated solution, in which the metal salt is in excess, a quantity of an alkali or an alkaline-reacting material sufficient to precipitate the metal complex and simultaneously the hydroxide of the metal by reaction with the excess of metal salt, or (d) treating a concentrated solution of the 8-hydroxyquinoline compound and a salt of a first metal of valency greater than one with a hydroxide or an alkaline-reacting salt of a second metal which forms an insoluble substratum by reaction with the acid radical of the first salt, or (e) treating a concentrated solution of the 8-hydroxyquinoline compound with excess of an alkaline-reacting oxide of the metal. In examples: (1) red magnetic iron oxide is suspended in an ethanolic solution of 8-hydroxyquinoline and zinc nitrate, and an aqueous ethanolic solution of potassium hydroxide is added to precipitate a paramagnetic pigment with a yellow-green fluorescence in ultra-violet radiation; (2) the iron oxide in (1) is replaced by titanium dioxide and the 8-hydroxyquinoline by its 7-methyl derivative; (3) a suspension of magnesium oxide in aqueous ethanol is stirred with an ethanolic solution of 8-hydroxyquinoline and zinc nitrate; (4) the magnesium oxide in (3) is replaced by alumina; (5) an aqueous ethanolic solution of sodium hydroxide is added to a concentrated ethanolic solution of 5 : 7-dichloro-8-hydroxyquinoline and excess of aluminium sulphate, producing a pigment which has a bright yellow fluorescence in ultraviolet radiation; (6) barium hydroxide hydrate is added to a concentrated aqueous ethanolic solution of 8-hydroxy quinoline and zinc sulphate to form a pigment with a barium sulphate substratum, which fluoresces whitish-green; (7) excess of zinc oxide is added to a stirred solution of 8-hydroxyquinoline in ethanol. Additional starting materials are, one the one hand, compounds of calcium, cadmium, copper beryllium and magnesium, and, on the other hand, 2-, 5- and 6-methyl- and 5-amino-8-hydroxyquinoline, and the diazaphenanthrene obtained by condensing 5-amino-8-hydroxyquinoline with glycerine in the presence of sulphuric acid according to the Skraup synthesis. The Specification as open to inspection under Sect. 91 comprises also the use, as starting materials, of azo derivatives of 8-hydroxyquinoline, e.g. its 5-benzeneazo derivative. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US599490XA | 1942-12-31 | 1942-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB599490A true GB599490A (en) | 1948-03-15 |
Family
ID=22026347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2000/44A Expired GB599490A (en) | 1942-12-31 | 1944-02-03 | Pigments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB599490A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0682087A1 (en) * | 1994-05-04 | 1995-11-15 | Bayer Ag | New pigment salts and their use for dyeing and pigmenting |
EP1607446A1 (en) * | 2003-03-26 | 2005-12-21 | Semiconductor Energy Laboratory Co., Ltd. | Organic/inorganic hybrid material, composition for synthesizing the same and process for producing the hybrid material |
-
1944
- 1944-02-03 GB GB2000/44A patent/GB599490A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0682087A1 (en) * | 1994-05-04 | 1995-11-15 | Bayer Ag | New pigment salts and their use for dyeing and pigmenting |
US5525152A (en) * | 1994-05-04 | 1996-06-11 | Bayer Aktiengesellschaft | Pigment salts and their use for dyeing and pigmenting |
EP1607446A1 (en) * | 2003-03-26 | 2005-12-21 | Semiconductor Energy Laboratory Co., Ltd. | Organic/inorganic hybrid material, composition for synthesizing the same and process for producing the hybrid material |
EP1607446A4 (en) * | 2003-03-26 | 2011-08-17 | Semiconductor Energy Lab | Organic/inorganic hybrid material, composition for synthesizing the same and process for producing the hybrid material |
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