Silica sols, method and apparatus for producing the same and use thereof in papermaking

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United States of America Patent

PATENT NO 9975781
APP PUB NO 20160311693A1
SERIAL NO

15105801

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Abstract

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The present invention relates to colloidal silicas having a low S-value and a high solids content, the preparation thereof, and the use thereof in the production of paper. When used in the production of paper, the colloidal silicas of the invention exhibit good retention and drainage performance so that they can be used in lower amounts compared to conventional colloidal silicas. The present invention also relates to an apparatus and a method for producing such activated colloidal silicas.

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Patent Owner(s)

  • ECOLAB USA INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bai, Wen Shanghai, CN 2 2
Chen, Zhi Shanghai, CN 206 2120
Miller,, Jr Raymond D Carol Stream, US 4 2
Shen, Jian Kun Shanghai, CN 6 14
Wong, Shing Jane B Aurora, US 16 173
Wu, Jia Shanghai, CN 33 277
Xu, Jian Shanghai, CN 747 8337

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