Hydraulic and earth engineering – Earth treatment or control – Chemical
Reexamination Certificate
2007-01-16
2007-01-16
Mitchell, Katherine (Department: 3677)
Hydraulic and earth engineering
Earth treatment or control
Chemical
C405S263000, C405S267000, C516S111000, C516S082000, C516S079000
Reexamination Certificate
active
10644488
ABSTRACT:
The invention relates to the use of a composition for injection grouting obtainable by mixing an alkali metal silicate or an organic silicate, colloidal silica particles, and at least one gelling agent, wherein the weight ratio of colloidal silica to silicate is from about 2:1 to about 100:1. The invention also relates to a method of sealing a leaking part or cavity, and method of cutting off a liquid flow in a leaking part or cavity. The invention further relates to a composition for injection grouting and a method for preparing such composition.
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Grace Davison, Ludox® Technical Information, downloaded from http://www.gracedavison.com/products/ludox/techinfo.htm , verified by http://web.archive.org/web/20010111091500/www.gracedavison.com/products/ludox/techinfo.htm, 4 pages, Jan. 11, 2001.
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Greenwood Peter
Jansson Inger
Skarp Ulf
Akzo Nobel N.V.
Burke Michelle J.
Mitchell Katherine
Morriss Robert C.
Vickrey David H.
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