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Lignina oxidada en ácali-O2 como dispersante
Una mezcla o composición de pigmentos que comprende un dispersante, en donde el dispersante es un polielectrolito soluble en agua en áreas de pH superiores a 3-4, tiene propiedades tensioactivas y comprende lignina oxidada en álcali-O2, que tiene carga negativa debido a estructuras carboxílicas y estructuras de enol de quinona estabilizadas por resonancia en polímero de lignina, y en donde el contenido de dispersante es 0,01-5% en peso de la mezcla o composición de pigmento.
According to an example aspect of the present invention, there is provided a dispersant comprising alkaline-O2 oxidized lignin. Such dispersant may be used for example in inorganic pigments to reduce interactions between pigment particles and lower the viscosity of pigment mixtures, and thereby positively affect for example to the loading of fillers and pigments in paints and coatings, paper and board, constructions materials, printing inks and plastics. Dispersants may also be used in aiding the inorganic pigment grinding in the pigment mine. Another suitable use is as a plasticizer or as a retardant agent for construction materials, such as gypsum.
Lignina oxidada en ácali-O2 como dispersante
Una mezcla o composición de pigmentos que comprende un dispersante, en donde el dispersante es un polielectrolito soluble en agua en áreas de pH superiores a 3-4, tiene propiedades tensioactivas y comprende lignina oxidada en álcali-O2, que tiene carga negativa debido a estructuras carboxílicas y estructuras de enol de quinona estabilizadas por resonancia en polímero de lignina, y en donde el contenido de dispersante es 0,01-5% en peso de la mezcla o composición de pigmento.
According to an example aspect of the present invention, there is provided a dispersant comprising alkaline-O2 oxidized lignin. Such dispersant may be used for example in inorganic pigments to reduce interactions between pigment particles and lower the viscosity of pigment mixtures, and thereby positively affect for example to the loading of fillers and pigments in paints and coatings, paper and board, constructions materials, printing inks and plastics. Dispersants may also be used in aiding the inorganic pigment grinding in the pigment mine. Another suitable use is as a plasticizer or as a retardant agent for construction materials, such as gypsum.
Lignina oxidada en ácali-O2 como dispersante
KALLIOLA ANNA (author) / LIITIÄ TIINA (author) / TAMMINEN TARJA (author) / VEHMAS TAPIO (author)
2022-05-12
Patent
Electronic Resource
Spanish
IPC:
C08H
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
,
Derivate von natürlichen makromolekularen Verbindungen
/
C04B
Kalk
,
LIME
/
C07G
COMPOUNDS OF UNKNOWN CONSTITUTION
,
Verbindungen unbekannter Zusammensetzung
/
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
Dispersante mejorado para sistemas endurecibles de manera hidráulica
| European Patent Office | 2019