Absorption of hydrophobic water-immiscible liquids
OwnerDavid J. Robson, John Mark Lawther +1inventors
InventorsDAVID J. ROBSON, JOHN MARK LAWTHER, SARA A. HUGHES
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Abstract
A material for absorbing hydrophobic water-immiscible liquids comprises lignocellulosic plant material which has been rendered relatively more absorbent to hydrophobic water-immiscible liquids by esterification of hydroxyl groups in the lignin of the lignocellulose material. The esterification in one aspect is by acetylation of the hydroxyl groups. Absorbing articles and methods for use with hydrophobic water-immiscible liquids are also disclosed.
Claims24
A method of absorbing hydrophobic water-immiscible liquids comprising treating the liquid with cellulosic plant material which has been modified to render it relatively more absorbent to hydrophobic water-immiscible liquids by chemical reaction of hydroxyl groups in the lignocellulose material.
A method of absorbing hydrophobic water-immiscible liquids comprising treating the liquid with lignocellulose material which has been modified to render it relatively more absorbent to hydrophobic water-immiscible by chemical reaction of hydroxyl groups in the lignocellulose material.
The use as an absorbent of hydrophobic water-immiscible liquids of cellulosic plant material which has been rendered relatively more absorbent to hydrophobic water-immiscible liquids by chemical reaction of hydroxyl groups in the lignocellulose material.
An article for absorbing hydrophobic water-immiscible liquid comprising cellulosic plant material which has been rendered relatively more attractive to hydrophobic water-immiscible liquids by chemical reaction of hydroxyl groups in the plant material, and a covering material through which the hydrophobic liquid may pass provided around the modified plant material.
A sheet of cellulosic plant material which has been rendered relatively more attractive to hydrophobic water-immiscible liquids by chemical reaction of hydroxyl groups in the plant material.
Dependencies are inferred from the claim text.