STABLE AQUEOUS COLLOIDAL SILICA PRODUCT, AND METHODS TO MAKE AND USE SAME

STABLE AQUEOUS COLLOIDAL SILICA PRODUCT, AND METHODS TO MAKE AND USE SAME

An aqueous colloidal silica product, a method of using the aqueous colloidal silica product, and a method of producing an aqueous colloidal silica product, are disclosed. The method of producing the aqueous colloidal silica product incorporates semi-batch addition of alkali metal silicate, which is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LI, MINGHUA, WONG SHING, JANE B, MILLER, RAYMOND D.JR
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
IMPREGNATING OR COATING OF PAPER
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
TEXTILES
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:An aqueous colloidal silica product, a method of using the aqueous colloidal silica product, and a method of producing an aqueous colloidal silica product, are disclosed. The method of producing the aqueous colloidal silica product incorporates semi-batch addition of alkali metal silicate, which is capable of achieving an aqueous colloidal silica product having desirable physical and chemical characteristics. The aqueous colloidal silica product has been found to be particularly useful as an additive in a papermaking process.