GUANIDINE CARBONATE-CONTAINING SILICA SOL

The invention relates to a fine-particulate, stable, partially-aggregated silica gel with a BET surface area of 100 to 1200 m2/g, and a content of from 0.05 to 15 wt. % of guanidinium ions, a method for production thereof by reaction of a raw gel with guanidine carbonate, preferably in the presence...

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Bibliographic Details
Main Authors PUPPE, LOTHAR, PANTKE, DIETRICH
Format Patent
LanguageEnglish
French
Published 20.12.2011
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOUNDS THEREOF
IMPREGNATING OR COATING OF PAPER
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC MACROMOLECULAR COMPOUNDS
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:The invention relates to a fine-particulate, stable, partially-aggregated silica gel with a BET surface area of 100 to 1200 m2/g, and a content of from 0.05 to 15 wt. % of guanidinium ions, a method for production thereof by reaction of a raw gel with guanidine carbonate, preferably in the presence of a further base and use of the silica gel as an aid in paper retention.
Bibliography:Application Number: CA20032492094