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Oxidationsstabile Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung.
Oxidation stable iron oxide pigment (A) with an iron(II)-content of at least 5 wt.% (as iron(II)oxide) comprises an organic coating of a compound (I), where (A) exhibits an oxidation stability of >= 10[deg]C compared to non-coated iron oxide pigments, during oxidation stability test. Oxidation stable iron oxide pigments (A) with an iron(II)-content of at least 5 wt.% (as iron(II)oxide) comprises an organic coating of a compound (I) of formula R-(COOX) n, where (A) exhibits an oxidation stability of >= 10[deg]C compared to non-coated iron oxide pigments, during oxidation stability test. R : 1-15C-aliphatic remainder (optionally saturated and optionally substituted by halo, NH 2, OH, NHR 1>, NR 1> 2 or OR 1>) or 4-26C-aromatic remainder (optionally saturated and optionally substituted by halo, NH 2, OH, NHR 1>, NR 1> 2, OR 1> or R 1>); R 1>1-10C-aliphatic remainder (optionally saturated) or 6-10C-alicyclic or aromatic (both optionally substituted); X : H, alkali metal or NR 2> 4; R 2>H or aliphatic-, alicyclic- or aromatic remainder containing 1/2 alkaline earth metal, 1/3 Al or 1/3 Fe; and n : 1-10. An independent claim is included for a process to prepare the iron oxide pigment comprising mixing the iron oxide pigment with iron(II)-content (at least 5 wt.%, as iron(II)oxide) and (I) or a suspension or a paste containing (I), and then optionally drying and grounding the mixture.
Oxidationsstabile Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung.
Oxidation stable iron oxide pigment (A) with an iron(II)-content of at least 5 wt.% (as iron(II)oxide) comprises an organic coating of a compound (I), where (A) exhibits an oxidation stability of >= 10[deg]C compared to non-coated iron oxide pigments, during oxidation stability test. Oxidation stable iron oxide pigments (A) with an iron(II)-content of at least 5 wt.% (as iron(II)oxide) comprises an organic coating of a compound (I) of formula R-(COOX) n, where (A) exhibits an oxidation stability of >= 10[deg]C compared to non-coated iron oxide pigments, during oxidation stability test. R : 1-15C-aliphatic remainder (optionally saturated and optionally substituted by halo, NH 2, OH, NHR 1>, NR 1> 2 or OR 1>) or 4-26C-aromatic remainder (optionally saturated and optionally substituted by halo, NH 2, OH, NHR 1>, NR 1> 2, OR 1> or R 1>); R 1>1-10C-aliphatic remainder (optionally saturated) or 6-10C-alicyclic or aromatic (both optionally substituted); X : H, alkali metal or NR 2> 4; R 2>H or aliphatic-, alicyclic- or aromatic remainder containing 1/2 alkaline earth metal, 1/3 Al or 1/3 Fe; and n : 1-10. An independent claim is included for a process to prepare the iron oxide pigment comprising mixing the iron oxide pigment with iron(II)-content (at least 5 wt.%, as iron(II)oxide) and (I) or a suspension or a paste containing (I), and then optionally drying and grounding the mixture.
Oxidationsstabile Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung.
Oxidation stable iron oxide pigments, method for their production and their use.
Pigment d'oxyde de fer résistant à l'oxydation, méthode de leur fabrication et leur usage
FRIEDRICH HOLGER DR (author) / KUNSTMANN HERBERT DR (author)
2017-11-22
Patent
Electronic Resource
German
IPC:
C09C
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
,
Behandlung von anorganischen Stoffen, außer von faserigen Füllstoffen, zum Erhöhen ihrer pigmentierenden oder füllenden Eigenschaften
/
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C09D
Überzugsmittel, z.B. Anstrichstoffe, Firnisse oder Lacke
,
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS
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