Defoamer compositions and methods of using the same

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United States of America Patent

PATENT NO 9675905
APP PUB NO 20150273359A1
SERIAL NO

14662252

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Abstract

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Defoamer compositions are described and the use of defoamer compositions in paper and pulp mills is described, especially for use at the brown stock washing steps in a pulp mill. The defoamer composition comprises:

    a) about 20 wt % to about 90 wt % of at least one organophosphorous component (e.g., compound or polymer, n-tributoxyethyl phosphate);b) about 1 wt % to about 10 wt % of at least one silane treated silica;c) about 0.5 wt % to about 10 wt % of at least one surfactant that is anionic or non-ionic; andd) optionally, water or an aqueous liquid.

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Patent Owner(s)

Patent OwnerAddress
BUCKMAN LABORATORIES INTERNATIONAL INC1256 NORTH MCLEAN BLVD MEMPHIS TN 38108

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mudaly, Glenn Baie-d'Urfe, CA 1 1

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