Silica-based sols

Details Silica-based sols Silica-based sols

D - Textiles, Paper

21

H

D21H 17/68 (2006.01) D21H 17/29 (2006.01)

Patent

CA 2502419

An aqueous sol containing silica-based particles is used as a drainage and retention aid in the production of paper. The sol has a specific surface area of at least 90 m2/g aqueous sol and an S-value within the range of from 10 to 45% or contains silica-based particles having a specific surface area of less than 1000 m2/g SiO2.

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