Process for the protection of solid surfaces, particularly coastal areas, against pollution by hydrocarbons
AssigneeSociete Nationale Elf Aquitaine
InventorsAnne Basseres, Alain Ladousse
Life of this patent
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Abstract
A process affording protection to solid surfaces and especially coastal areas against hydrocarbon pollution involves applying a protective layer composed of polysaccharides containing pendant carboxyl groups, such as alginates or lightly methylated pectins.
Claims14
A process for the protection of the surfaces of rocks, shingle, sand or marshes present in coastal areas or on the banks of rivers or lakes against the deposition of oleophilic materials which comprises applying a protective layer to the said surfaces, characterized in that the protective layer is made up of at least one polysaccharide containing free carboxyl groups chosen from the group consisting of alginates and pectins in which the degree of esterification of the pectin is lower than 50%.
Dependencies are inferred from the claim text.