GB2271769B - Pure-colored iron oxide direct red pigments, a process for their production and their use - Google Patents

Pure-colored iron oxide direct red pigments, a process for their production and their use

Info

Publication number
GB2271769B
GB2271769B GB9321805A GB9321805A GB2271769B GB 2271769 B GB2271769 B GB 2271769B GB 9321805 A GB9321805 A GB 9321805A GB 9321805 A GB9321805 A GB 9321805A GB 2271769 B GB2271769 B GB 2271769B
Authority
GB
United Kingdom
Prior art keywords
pure
production
iron oxide
direct red
red pigments
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 - Fee Related
Application number
GB9321805A
Other versions
GB2271769A (en
GB9321805D0 (en
Inventor
Klaus Lerch
Gunter Buxbaum
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 GB9321805D0 publication Critical patent/GB9321805D0/en
Publication of GB2271769A publication Critical patent/GB2271769A/en
Application granted granted Critical
Publication of GB2271769B publication Critical patent/GB2271769B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide (Fe2O3)
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/22—Compounds of iron
    • C09C1/24—Oxides of iron
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/45—Aggregated particles or particles with an intergrown morphology
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/62—L* (lightness axis)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/63—Optical properties, e.g. expressed in CIELAB-values a* (red-green axis)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/64—Optical properties, e.g. expressed in CIELAB-values b* (yellow-blue axis)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/65—Chroma (C*)
GB9321805A 1992-10-23 1993-10-22 Pure-colored iron oxide direct red pigments, a process for their production and their use Expired - Fee Related GB2271769B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4235944A DE4235944A1 (en) 1992-10-23 1992-10-23 Color-pure iron oxide direct red pigments, process for their preparation and their use
CN94101313.8A CN1106038A (en) 1992-10-23 1994-01-26 Pure-colored iron oxide direct red pigments, a process for their procuction and their use
CN94101312.XA CN1106037A (en) 1992-10-23 1994-01-26 Pure-colored iron oxide direct red pigments, a process for their procuction and their use

Publications (3)

Publication Number Publication Date
GB9321805D0 GB9321805D0 (en) 1993-12-15
GB2271769A GB2271769A (en) 1994-04-27
GB2271769B true GB2271769B (en) 1995-09-13

Family

ID=36940465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9321805A Expired - Fee Related GB2271769B (en) 1992-10-23 1993-10-22 Pure-colored iron oxide direct red pigments, a process for their production and their use

Country Status (5)

Country Link
JP (1) JP3659983B2 (en)
CN (2) CN1106037A (en)
DE (1) DE4235944A1 (en)
GB (1) GB2271769B (en)
IT (1) IT1270901B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59402131D1 (en) * 1993-09-23 1997-04-24 Bayer Ag Color-pure iron oxide direct red pigments, process for their preparation and their use
DE59605913D1 (en) * 1995-10-26 2000-10-26 Bayer Ag Color-pure, yellowish iron oxide red pigments, process for their preparation and their use
CA2423174C (en) * 2000-09-26 2012-10-23 Bayer Aktiengesellschaft Contact and adsorber granules
KR100772704B1 (en) 2005-09-29 2007-11-02 주식회사 하이닉스반도체 Method for manufacturing of semiconductor deive with taper type trench
BR112017004876B1 (en) * 2014-09-11 2022-11-16 Lanxess Deutschland Gmbh HEMATITE PIGMENT, PROCESSES FOR PREPARING HEMATITE PIGMENTS, USE OF HEMATITE PIGMENTS, AND PROCESS FOR DYEING PRODUCTS
EP3216764A1 (en) * 2016-03-09 2017-09-13 LANXESS Deutschland GmbH Production of iron oxide red pigments
EP3683190B1 (en) * 2019-01-17 2022-03-09 LANXESS Deutschland GmbH Method for manufacturing hematite pigments

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554456A (en) * 1975-12-15 1979-10-24 Bayer Ag Process for the continuous production of iron oxide hydroxide
US4676838A (en) * 1984-11-09 1987-06-30 Bayer Aktiengesellschaft Lamellar iron oxide pigments, a process for the production thereof and the use thereof
US4753680A (en) * 1985-01-09 1988-06-28 Bayer Aktiengesellschaft Process for the preparation of bright, color-pure iron oxide red pigments

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554456A (en) * 1975-12-15 1979-10-24 Bayer Ag Process for the continuous production of iron oxide hydroxide
US4676838A (en) * 1984-11-09 1987-06-30 Bayer Aktiengesellschaft Lamellar iron oxide pigments, a process for the production thereof and the use thereof
US4753680A (en) * 1985-01-09 1988-06-28 Bayer Aktiengesellschaft Process for the preparation of bright, color-pure iron oxide red pigments

Also Published As

Publication number Publication date
DE4235944A1 (en) 1994-04-28
IT1270901B (en) 1997-05-13
GB2271769A (en) 1994-04-27
GB9321805D0 (en) 1993-12-15
ITMI932169A0 (en) 1993-10-13
CN1106038A (en) 1995-08-02
JPH06256022A (en) 1994-09-13
CN1106037A (en) 1995-08-02
ITMI932169A1 (en) 1995-04-13
JP3659983B2 (en) 2005-06-15

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081022