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US 4,452,721 AGranted
Suspensions containing microfibrillated cellulose
AssigneeInternational Telephone and Telegraph Corporation
InventorsAlbin F. Turbak, Fred W. Snyder, Karen R. Sandberg
Life of this patent
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Abstract
A suspension of a finely divided material in a liquid suspending medium which swells cellulose, the suspension containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The finely divided material is a dense solid such as coal or sand.
Claims4
A suspension of a finely divided dense solid selected from the group consisting of sand and coal material in a liquid suspending medium which swells cellulose, said suspension containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension.
Dependencies are inferred from the claim text.