Coating system for materials which swell in water
AssigneeWolff Walstrode AG
InventorsErhard Luhmann, Burkhard Kressdorf, Lutz Hoppe, Klaus Szablikowski, Gunter Weber, Sebastian Meyer-Stork
Life of this patent
Estimating the term…
Abstract
The present invention relates to a coating compound for sheets, films, or molded products composed of modified or unmodified polysaccharides.
Claims15
A sheet, film or article molded of regenerated cellulose, or of a cellulose ester which swells in water, the molding optionally including a synthetic polymer, coated with a polyisocyanate.
A coating composition, suitable for a sheet, film or article molded of regenerated cellulose, or of a cellulose ester which swells in water, comprising a polyisocyanate and a hydroxyl compound, the NCO:OH ratio in said composition being greater than 1:0.85.
Dependencies are inferred from the claim text.